CN103932706A - Magnetic resonance imaging scanning method and device - Google Patents
Magnetic resonance imaging scanning method and device Download PDFInfo
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- CN103932706A CN103932706A CN201310021724.XA CN201310021724A CN103932706A CN 103932706 A CN103932706 A CN 103932706A CN 201310021724 A CN201310021724 A CN 201310021724A CN 103932706 A CN103932706 A CN 103932706A
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Abstract
The invention provides a magnetic resonance imaging scanning method. The method comprises the following steps that the vertical view of a scanned object on a hospital bed after positioning is acquired, a region of interest of the scanned object is provided with a positioning mark; according to the vertical view and the positioning mark, the distance a in the front-back direction and the distance b in the left-right direction of the positioning mark and a magnet center are calculated through a known size and a proportional relation; according to the distance a and the distance b, the region of interest, which is provided with the positioning mark, is scanned. According to the scanning method, the region of interest of the scanned object is positioned, and the risk that the scanned object is made blind is avoided. According to the selectable technical scheme, when multiple-position scanning needs to be conducted on the scanned object, there is no need for conducting positioning again independently, and the operating process is concise. The invention further provides a magnetic resonance imaging scanning device.
Description
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[technical field]
The present invention relates to nuclear magnetic resonance field, relate in particular to a kind of MRI scan method and device.
[background technology]
For magnetic resonance imaging system, the uniformity of magnetic field of magnet center is best, imaging effect the best, and therefore, in the time that magnetic resonance imaging scans, operator can move on to magnet center by mobile magnetic resonance sick bed by the position of needs of patients inspection and check.At present patient scan position is moved to magnet center and conventionally has following two kinds of methods:
1, laser lamp cross method, as shown in Figure 1, first operator opens cross laser lamp (1 in Fig. 1 is laser lamp) outward at magnet, by " move/stopping " operation that moves bed apparatus on equipment, the region of needs of patients scanning is moved to the indicated position of laser lamp, system can be remembered the position that laser lamp is demarcated, and operator moves to the position of laser lamp scanning demarcation by confirming to move into device on equipment the center of magnet.Detailed process is as follows:
1) will be scanned object and be put to sick bed, be put the required local coil of scanning at patient's scanning position interested with it;
2) by Position Approximate under control panel control sick bed forward/backward alignment laser lamp;
3) remind and be scanned object and close one's eyes and prevent from burning, open laser lamp, the cross that continues to penetrate by control panel control sick bed forward/backward and by laser lamp is alignd with scanning area interested;
4) close laser lamp and trigger into bed, because laser lamp and magnetic field center distance are constant, now system can move into equidistant by sick bed by issuing command, makes scanning area interested be placed in magnetic field center;
5) picture is located in function software scanning for the first time, and this time scanning position is not containing left/right directional information;
6) scanning imagery is loaded on interface, software location for the first time, and motion scan section (2 in Fig. 2 is scan slice) position is found left/right correspondence position and located for the second time picture scanning;
7) carry out formal clinical scanning according to location picture.
2, edge of bed labelling method, as shown in Figure 3, the left and right parallel lines joint by Fingers fixed bed along corresponding interested position, by calculating the relative position of this point and magnetic field center, Mobile sickbed arrives magnetic field center.Detailed process is as follows:
1) will be scanned object and put to sick bed, put the required local coil of scanning at patient's scanning position interested with it;
2) can touch anchor point (3 in Fig. 3 is for touching anchor point) with hands click sick bed and interested position correspondence position;
3) screen will show that click location information allows operator confirm, clicks and confirms that rear system is by calculating this point and magnetic field center distance, and Mobile sickbed makes scanning area interested be placed in magnetic field center;
4) picture is located in function software scanning for the first time, and this time scanning position is not containing left/right directional information;
5) scanning imagery is loaded on interface, software location for the first time, and the position of motion scan section (in Fig. 4,4 is scan slice) is found left/right correspondence position and located for the second time picture scanning;
6) carry out formal clinical scanning according to location picture.
As mentioned above, two kinds of localization methods in scanning process all need by area-of-interest being moved to magnet center on the axis of left and right directions, then obtain the location picture of location for the first time by prescan, look like to locate for the second time according to the location of locating for the first time, i.e. mobile area-of-interest on the axis of left and right directions, make it and be placed in magnet center completely, just can start to carry out afterwards formal clinical scanning.Therefore, cannot successfully locate area-of-interest by the process of once-through operation in the prior art, relatively flow process is loaded down with trivial details in operation.
On the other hand, there is the risk of blinding to eyes in the laser lamp itself that laser lamp cross method is used in position fixing process, although edge of bed telltale mark method does not have laser lamp blinding risk, but in operating process, need human eye to judge the corresponding edge of bed contact position of area-of-interest, therefore on fore-and-aft direction, have certain error.
[summary of the invention]
For solve in above-mentioned MRI scan process positioning action flow process loaded down with trivial details, there is certain risk and locate coarse problem being scanned object, be necessary to provide that a kind of operating process is succinct, risk is less and MRI scan method and the device of registration.
A kind of MRI scan method, comprises the steps:
After obtaining pendulum position, be scanned object top view on one's sick bed, the area-of-interest of described sweep object has been set up telltale mark;
According to described top view and telltale mark, calculate described telltale mark and the distance a of magnet center on fore-and-aft direction and the distance b on left and right directions by known size and proportionate relationship;
, scan being provided with described specifically labelled area-of-interest apart from a and distance b according to described.
Optionally, according to described top view and telltale mark, also comprise calculate the step of the described telltale mark distance a on fore-and-aft direction and distance b on left and right directions apart from magnet center by known size and proportionate relationship before: described top view is carried out to image distortion correction.
Optionally, described in be scanned object surrounding be provided with reference marker, described reference marker forms reference plane parallel with described sick bed, the described perceptual region-of-interest of projection covering of reference plane, carries out distortion correction by described reference plane to image.
Optionally, described reference marker quantity is four, lays respectively between two described sick bed left and right or both sides, front and back, forms a rectangle parallel with described sick bed or square reference plane.
Optionally, the quantity of described reference marker is four, lays respectively between two left and right or the both sides, front and back of the sick bed frame of described sick bed periphery, forms a rectangle parallel with described sick bed or square reference plane.
Optionally, according to described apart from a and distance b, be specially being provided with the step that specifically labelled area-of-interest scans: apart from a and distance b, described telltale mark is moved to described magnet center according to described, scan being provided with described specifically labelled area-of-interest.
Optionally, according to described, apart from a and distance b, the detailed process that described telltale mark is moved to described magnet center is:
Described telltale mark is moved on the axis of described magnet center left and right directions apart from a according to described;
Described in inciting somebody to action according to described distance b, be scanned object and move on described axis, described telltale mark is overlapped with described magnet center.
Optionally, according to described, apart from a and distance b, the detailed process that described telltale mark is moved to described magnet center is:
Described telltale mark is moved on the axis of described magnet center fore-and-aft direction according to described distance b;
On described axis, move apart from being scanned object described in a general according to described, described telltale mark is overlapped with described magnet center.
Optionally, according to described apart from a and distance b, be specially being provided with the step that described specifically labelled area-of-interest scans: described telltale mark is moved on the axis at described magnet center left and right directions place apart from a according to described, determine the particular location of area-of-interest according to described distance b, the area-of-interest after determining is scanned.
Optionally, described known size and proportionate relationship are: the length L 1 of sick bed, magnet center to telltale mark in the distance L 2 of the first side of described hospital bed place plane, described top view to the head of a bed one distance of side place plane and in the ratio X 1 of sick bed length, the width W of sick bed, described top view telltale mark to the distance of vertical plane and the ratio X 2 of sick bed width at described sick bed fore-and-aft direction axis place, a=L1*X1+L2, b=W*X2.
Optionally, described specifically labelled quantity is N, scanning the n(n≤N) when individual position to be scanned, n telltale mark moved to magnet center.
Optionally, in the time of N>1, calculate described n telltale mark and n-1 the distance a of telltale mark on fore-and-aft direction and the distance b on left and right directions by known size and proportionate relationship.
In order to address the above problem, the present invention also provides a kind of MRI scan device
A kind of MRI scan device, comprising:
Acquisition module is scanned object top view on one's sick bed after obtaining pendulum position, described in be scanned object area-of-interest be set up telltale mark;
Computing module, for according to described top view and telltale mark, calculates described telltale mark and the distance a of magnet center on fore-and-aft direction and the distance b on left and right directions by known size and proportionate relationship;
Scan module, for according to described apart from a and distance b, scan being provided with described specifically labelled area-of-interest.
Optionally, described positioner also comprises:
Correction module, for according to described top view and telltale mark, described top view is carried out to image distortion correction calculate the step of the described telltale mark distance a on fore-and-aft direction and distance b on left and right directions apart from magnet center by known size and proportionate relationship before.
Optionally, the described surrounding that is scanned object is provided with reference marker, described reference marker forms reference plane parallel with described sick bed, the projection of described reference plane covers described perceptual region-of-interest, described correction module, also for carrying out distortion correction by described reference plane to image.
Described scan module, also for according to described apart from a and distance b, described telltale mark is moved to described magnet center, scan being provided with described specifically labelled perceptual region-of-interest.
Optionally, described scan module comprises:
The first mobile unit: for according to the described axis that apart from a, described telltale mark is moved to described magnet center left and right directions;
The second mobile unit, for described sweep object being moved on described axis according to described distance b, makes described telltale mark overlap with magnet center.
Optionally, described scan module comprises:
The 3rd mobile unit, for moving to described telltale mark according to described distance b the axis of described magnet center fore-and-aft direction;
The 4th mobile unit, for described sweep object being moved on described axis apart from a according to described, makes described telltale mark overlap with magnet center.
Optionally, described scan module, also, for according to the described axis that apart from a, described telltale mark is moved to described magnet center left and right directions place, determine the particular location of area-of-interest according to described distance b, the area-of-interest after determining is scanned.
Compared with prior art, MRI scan method provided by the invention and device can complete the location to being scanned object area-of-interest, and not have the risk that is scanned object blinding in once-through operation process.In optional technical scheme, when being scanned object and need to carrying out multiple location scanning, do not need to re-start separately location, operating process is succinct.
[brief description of the drawings]
Fig. 1 adopts laser lamp cross method to the location schematic diagram before being scanned object and scanning;
Fig. 2 adopts laser lamp cross method to locate the schematic diagram of laggard line scanning to being scanned object;
Fig. 3 adopts edge of bed labelling method to the location schematic diagram before being scanned object and scanning;
Fig. 4 adopts edge of bed labelling method to locate the schematic diagram of laggard line scanning to being scanned object;
Fig. 5 adopts MRI scan method in the present invention to the oriented side view before being scanned object and scanning;
Fig. 6 adopts MRI scan method in the present invention to the location top view before being scanned object and scanning;
Fig. 7 is the flow chart of MRI scan method in the embodiment of the present invention;
Fig. 8 is the flow chart of MRI scan method in another embodiment of the present invention;
Fig. 9 is the structural representation of MRI scan device in the present invention;
Figure 10 is the structural representation of scan module described in Fig. 9.
[detailed description of the invention]
For above-mentioned purpose of the present invention, feature and advantage can more be become apparent, below in conjunction with drawings and Examples, the specific embodiment of the present invention is described in detail.
Set forth in the following description a lot of details so that fully understand the present invention, but the present invention can also adopt other to be different from embodiment described here, therefore the present invention is not subject to the restriction of following public specific embodiment.
Just as described in the background art, in nuclear magnetic resonance process, in prior art, be scanned the localization method of object, cannot in once-through operation process, complete the location to being scanned object area-of-interest, operating process is loaded down with trivial details, also there is certain risk to being scanned object in laser lamp cross method wherein, and edge of bed location need to judge the corresponding edge of bed contact position in position to be scanned by human eye, has certain deviation.Therefore in order to address the above problem, the invention provides a kind of MRI scan method and device.
As shown in Figure 7, a kind of MRI scan method, comprises the steps:
Step S10, is scanned object top view on one's sick bed after obtaining pendulum position, described in be scanned object area-of-interest be set up telltale mark.
As shown in Figure 5, being scanned the object pendulum position stage, telltale mark 5 is positioned over to the area-of-interest that is scanned object, area-of-interest refers to position to be scanned (being scanned the affected part of object).Telltale mark be can naked eyes the solid of identification, such as plastic disc etc.
Be scanned object and put top view on one's sick bed by being arranged on the photographic head 6 being scanned directly over object, getting.
Step S20, according to described top view and telltale mark, calculates described telltale mark and the distance a of magnet center on fore-and-aft direction and the distance b on left and right directions by known size and proportionate relationship.
As shown in Figure 6, described apart from a be telltale mark 5 on fore-and-aft direction with the distance of magnet center 8, distance b be telltale mark 5 on left and right directions with the distance of magnet center 8.
Described known size and proportionate relationship comprise, the length L 1 of sick bed, magnet center to telltale mark in the distance L 2 of the first side of described hospital bed place plane, described top view to the head of a bed one distance of side place plane and in the ratio X 1 of sick bed length, the width W of sick bed, described top view telltale mark to the distance of vertical plane and the ratio X 2 of sick bed width at described sick bed fore-and-aft direction axis place, a=L1*X1+L2, b=W*X2.The length and width of sick bed are known, pass through obtained top view, can show that telltale mark is to the head of a bed one distance of side place plane and the ratio X 1 of sick bed length, in described top view, telltale mark is to the distance of vertical plane and the ratio X 2 of sick bed width at described sick bed fore-and-aft direction axis place.
Certainly, described known size and proportionate relationship, also have other computational methods, such as adopting image distortion correction reference marker as described below to calculate, as shown in Figure 6, distance between reference marker 9a and 9b and magnet center are known to the distance of the plane perpendicular to sick bed at reference marker 9a and 9c place, can draw telltale mark 5 ratio to the distance between distance and 9a and the 9b of the plane perpendicular to sick bed at reference marker 9a and 9c place by top view, above-mentioned can calculate described apart from a; The distance of reference marker 9a and 9c is known, can show that by top view telltale mark 5 is to the distance of vertical plane at described sick bed fore-and-aft direction axis place and the ratio of the distance of reference marker 9a and 9c, above-mentionedly can calculate described distance b.
Step S30,, scans being provided with described specifically labelled area-of-interest apart from a and distance b according to described.
In one embodiment, according to described apart from a and distance b, be specially being provided with the step that specifically labelled area-of-interest scans: according to described apart from a and distance b, described telltale mark is moved to described magnet center, scan being provided with described specifically labelled area-of-interest.
Wherein, telltale mark is moved to the concrete steps of magnet center as follows:
Described telltale mark is moved on the axis of described magnet center left and right directions apart from a according to described, and then will be scanned object according to described distance b and move on described axis, described telltale mark is overlapped with magnet center.
Or according to described distance b, described telltale mark is moved on the axis of described magnet center fore-and-aft direction, and then will be scanned object apart from a and move on described axis according to described, described telltale mark is overlapped with magnet center.
The Distribution of Magnetic Field uniformity of magnet center is best, it is above-mentioned that area-of-interest is moved to magnet center scans is perfect condition, but in reality, be subject to the restriction of magnet aperture size, sick bed can not at random move on left and right directions, and a major axis taking magnet center as the centre of sphere all can meet the requirement of nuclear magnetic resonance as the uniformity of magnetic field of the spheroid inside of 50cm, therefore generally sick bed does not move on left and right directions, as long as area-of-interest is positioned at spheroid inside, the more specific location information of determining area-of-interest can scan afterwards, detailed process is as follows: described telltale mark is moved on the axis at described magnet center left and right directions place apart from a according to described, determine the particular location of area-of-interest according to described distance b, area-of-interest after determining is scanned.
In another embodiment, as shown in Figure 8, before step S20, also comprise step S40: described top view is carried out to image distortion correction.
In order to obtain relatively large top view, the photographic head that is arranged on sick bed top is general relatively near with the distance that is scanned object, the image getting is understood some distortion, and the distance of therefore calculating in described telltale mark and magnet needs object top view to carry out image distortion correction before.Particularly, can carry out anamorphose distortion correction by the reference marker 9 in described top view.Described reference marker is at least three, form reference plane, in the present embodiment, preferably, as shown in Figure 6, adopt four reference markers, lay respectively at the left and right sides or the both sides, front and back of described sick bed, form a rectangle parallel with sick bed or square reference plane, the projection of described reference plane covers position to be scanned.Certainly, reference marker also can be arranged on described sick bed sick bed frame around, in the process of scanning, reference marker is along with sick bed moves, start not to be set up specifically labelled position if operator also wants to scan certain, and reference marker form reference plane can cover current need scanning position, a telltale mark can be set again, obtain new top view, can carry out aforesaid operations.
It should be noted that, reference marker might not be the position arranging in Fig. 6, as long as meet the following conditions: the reference plane that 1, described reference marker forms are parallel with described sick bed, and 2, the projection of described reference plane will can cover position to be scanned.
In actual nuclear magnetic resonance process, often need multiple location to scan, therefore can, being scanned the object pendulum position stage, at different area-of-interest (centers at different positions to be scanned), telltale mark be set simultaneously.As shown in Figure 6, such as a total N position needs to scan, at least N telltale mark is set, when scanning the n(n≤N) when individual position to be scanned, n telltale mark moved to magnet center.In the time carrying out multiple location scanning, can calculate the distance b on distance a and the left and right directions on fore-and-aft direction of first telltale mark and magnet center, remaining is all the distance on telltale mark and distance and the left and right directions of a upper telltale mark having scanned on fore-and-aft direction calculating on position to be scanned.
As shown in Figure 9, a kind of MRI scan device, described scanning means comprises:
Acquisition module 10, for obtaining the top view that is scanned object, described in be scanned object area-of-interest be set up telltale mark.
Computing module 20, for according to described top view and telltale mark, calculates described telltale mark and the distance a of magnet center on fore-and-aft direction and the distance b on left and right directions by known size and proportionate relationship.
Scan module 30, for according to described apart from a and distance b, scan being provided with described specifically labelled area-of-interest.
Described scanning means also comprises: correction module 40, for according to described top view and telltale mark, described top view is carried out to image distortion correction calculate the step of the described telltale mark distance a on fore-and-aft direction and distance b on left and right directions apart from magnet center by known size and proportionate relationship before.The described surrounding that is scanned object is provided with reference marker, described reference marker forms reference plane parallel with described sick bed, the projection of reference plane covers described perceptual region-of-interest, and described correction module 40, also for carrying out distortion correction by described reference plane to image.
Described scan module 30, also for according to described apart from a and distance b, described telltale mark is moved to described magnet center, scan being provided with described specifically labelled area-of-interest.
As shown in figure 10, described scan module 30 comprises:
The first mobile unit 301: for according to the described axis that apart from a, described telltale mark is moved to described magnet center left and right directions.
The second mobile unit 302, for moving on described axis according to being scanned object described in described distance b general, makes described telltale mark overlap with magnet center.
In another embodiment, described mobile module 30 comprises:
The 3rd mobile unit 303, for moving to described telltale mark according to described distance b the axis of described magnet center fore-and-aft direction;
The 4th mobile unit 304, for described sweep object being moved on described axis apart from a according to described, makes described telltale mark overlap with magnet center.
Described scan module 30, also, for according to the described axis that apart from a, described telltale mark is moved to described magnet center left and right directions place, determines the particular location of area-of-interest according to described distance b, the area-of-interest after determining is scanned.
In sum, a kind of MRI scan method provided by the invention and device, position by being arranged on the telltale mark being scanned on object area-of-interest, can in once-through operation process, area-of-interest be moved to magnet center, simplify after needing to obtain for the first time the location picture of location by prescan in prior art and located for the second time again the operating process that area-of-interest could be moved to magnet center.In optional technical scheme, in the time carrying out multiple location scanning, position by the different telltale marks that are arranged on multiple positions to be scanned, avoid each position to be scanned in prior art to need independent position fixing process, therefore nuclear magnetic resonance localization method provided by the invention and device, operating process is succinct, safer to being scanned object, and setting accuracy is also better.
Although the present invention discloses as above with preferred embodiment; so it is not in order to limit the present invention, any those skilled in the art, without departing from the spirit and scope of the present invention; when doing a little amendment and perfect, therefore protection scope of the present invention is worked as with being as the criterion that claims were defined.
Claims (19)
1. a MRI scan method, is characterized in that, comprises the steps:
After obtaining pendulum position, be scanned object top view on one's sick bed, described in be scanned object area-of-interest be set up telltale mark;
According to described top view and telltale mark, calculate described telltale mark and the distance a of magnet center on fore-and-aft direction and the distance b on left and right directions by known size and proportionate relationship;
, scan being provided with described specifically labelled area-of-interest apart from a and distance b according to described.
2. MRI scan method as claimed in claim 1, it is characterized in that, according to described top view and telltale mark, also comprise calculate the step of the described telltale mark distance a on fore-and-aft direction and distance b on left and right directions apart from magnet center by known size and proportionate relationship before:
Described top view is carried out to image distortion correction.
3. MRI scan method as claimed in claim 2, it is characterized in that, the described surrounding that is scanned object is provided with reference marker, described reference marker forms reference plane parallel with described sick bed, the projection of described reference plane covers described perceptual region-of-interest, by described reference plane, image is carried out to distortion correction.
4. MRI scan method as claimed in claim 3, is characterized in that, described reference marker quantity is four, lays respectively between two described sick bed left and right or both sides, front and back, forms a rectangle parallel with described sick bed or foursquare reference plane.
5. MRI scan method as claimed in claim 3, it is characterized in that, the quantity of described reference marker is four, lays respectively between two sick bed frame left and right or the both sides, front and back of described sick bed periphery, forms a rectangle parallel with described sick bed or foursquare reference plane.
6. MRI scan method as claimed in claim 1, it is characterized in that, according to described apart from a and distance b, be specially being provided with the step that specifically labelled area-of-interest scans: according to described apart from a and distance b, described telltale mark is moved to described magnet center, scan being provided with described specifically labelled area-of-interest.
7. MRI scan method as claimed in claim 6, is characterized in that, according to described, apart from a and distance b, the detailed process that described telltale mark is moved to described magnet center is:
Described telltale mark is moved on the axis of described magnet center left and right directions apart from a according to described;
Described in inciting somebody to action according to described distance b, be scanned object and move on described axis, described telltale mark is overlapped with described magnet center.
8. MRI scan method as claimed in claim 6, is characterized in that, according to described, apart from a and distance b, the detailed process that described telltale mark is moved to described magnet center is:
Described telltale mark is moved on the axis of described magnet center fore-and-aft direction according to described distance b;
On described axis, move apart from being scanned object described in a general according to described, described telltale mark is overlapped with described magnet center.
9. MRI scan method as claimed in claim 1, is characterized in that,, is specially being provided with the step that described specifically labelled area-of-interest scans apart from a and distance b according to described:
Described telltale mark is moved on the axis at described magnet center left and right directions place apart from a according to described, determine the particular location of area-of-interest according to described distance b, the area-of-interest after determining is scanned.
10. MRI scan method as claimed in claim 1, it is characterized in that, described known size and proportionate relationship are: the length L 1 of sick bed, magnet center to telltale mark in the distance L 2 of the first side of described hospital bed place plane, described top view to the head of a bed one distance of side place plane and in the ratio X 1 of sick bed length, the width W of sick bed, described top view telltale mark to the distance of vertical plane and the ratio X 2 of sick bed width at described sick bed fore-and-aft direction axis place, a=L1*X1+L2, b=W*X2.
11. MRI scan methods as claimed in claim 1, is characterized in that, described specifically labelled quantity is N, scanning the n(n≤N) when individual position to be scanned, n telltale mark moved to magnet center.
12. MRI scan methods as claimed in claim 11, it is characterized in that, in the time of N>1, calculate described n telltale mark and n-1 the distance a of telltale mark on fore-and-aft direction and the distance b on left and right directions by known size and proportionate relationship.
13. 1 kinds of MRI scan devices, is characterized in that, described positioner comprises:
Acquisition module, is scanned object top view on one's sick bed for obtaining after pendulum position, described in be scanned object area-of-interest be set up telltale mark;
Computing module, for according to described top view and telltale mark, calculates described telltale mark and the distance a of magnet center on fore-and-aft direction and the distance b on left and right directions by known size and proportionate relationship;
Scan module, for according to described apart from a and distance b, scan being provided with described specifically labelled area-of-interest.
14. MRI scan devices as claimed in claim 13, is characterized in that, described scanning means also comprises:
Correction module, for according to described top view and telltale mark, described top view is carried out to image distortion correction calculate the step of the described telltale mark distance a on fore-and-aft direction and distance b on left and right directions apart from magnet center by known size and proportionate relationship before.
15. MRI scan devices as claimed in claim 14, it is characterized in that, the described surrounding that is scanned object is provided with reference marker, described reference marker forms reference plane parallel with described sick bed, the projection of described reference plane covers described perceptual region-of-interest, described correction module, also for carrying out distortion correction by described reference plane to image.
16. MRI scan devices as claimed in claim 13, it is characterized in that, described scan module, also for according to described apart from a and distance b, described telltale mark is moved to described magnet center, scan being provided with described specifically labelled perceptual region-of-interest.
17. MRI scan devices as claimed in claim 16, is characterized in that, described scan module also comprises:
The first mobile unit: for according to the described axis that apart from a, described telltale mark is moved to described magnet center left and right directions;
The second mobile unit, for described sweep object being moved on described axis according to described distance b, makes described telltale mark overlap with magnet center.
18. as weighed the MR imaging apparatus requiring as described in 16, it is characterized in that, described scan module also comprises:
The 3rd mobile unit, for moving to described telltale mark according to described distance b the axis of described magnet center fore-and-aft direction;
The 4th mobile unit, for described sweep object being moved on described axis apart from a according to described, makes described telltale mark overlap with magnet center.
19. MRI scan devices as claimed in claim 13, it is characterized in that, described scan module, also for according to the described axis that apart from a, described telltale mark is moved to described magnet center left and right directions place, determine the particular location of area-of-interest according to described distance b, the area-of-interest after determining is scanned.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105551042A (en) * | 2015-12-15 | 2016-05-04 | 沈阳东软医疗系统有限公司 | Determination method and apparatus for mark point positions of scanning bed |
| CN107510470A (en) * | 2017-09-30 | 2017-12-26 | 苏州众志医疗科技有限公司 | Positioner and localization method for medical imaging device |
| CN108459286A (en) * | 2017-02-20 | 2018-08-28 | 冯原 | Internal Mechanical Properties of Soft Tissues test method based on magnetic resonance imaging and device |
| CN108852355A (en) * | 2018-06-29 | 2018-11-23 | 上海东软医疗科技有限公司 | Nuclear magnetic resonance equipment and patient's displacement method for nuclear magnetic resonance equipment |
| CN111528895A (en) * | 2020-05-26 | 2020-08-14 | 苏州波影医疗技术有限公司 | CT visual positioning system and positioning method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08257024A (en) * | 1995-03-10 | 1996-10-08 | Siemens Ag | Method and equipment to do positioning of patient in medicaldiagnostic device |
| US6460206B1 (en) * | 1999-10-01 | 2002-10-08 | Siemens Aktiengesellschaft | Medical diagnostic imaging apparatus |
| CN1676096A (en) * | 2004-03-31 | 2005-10-05 | 西门子公司 | Medical imaging examination device |
| CN101502446A (en) * | 2008-02-07 | 2009-08-12 | 西门子公司 | Method and device to determine a position shift of a focal area |
| CN201384493Y (en) * | 2009-03-12 | 2010-01-20 | 西门子迈迪特(深圳)磁共振有限公司 | Positioning device used for magnetic resonance system |
| US20100156421A1 (en) * | 2008-12-19 | 2010-06-24 | Johann Sukkau | Method and device for determining a position of a local coil in a magnetic resonance apparatus |
-
2013
- 2013-01-22 CN CN201310021724.XA patent/CN103932706B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08257024A (en) * | 1995-03-10 | 1996-10-08 | Siemens Ag | Method and equipment to do positioning of patient in medicaldiagnostic device |
| US6460206B1 (en) * | 1999-10-01 | 2002-10-08 | Siemens Aktiengesellschaft | Medical diagnostic imaging apparatus |
| CN1676096A (en) * | 2004-03-31 | 2005-10-05 | 西门子公司 | Medical imaging examination device |
| CN101502446A (en) * | 2008-02-07 | 2009-08-12 | 西门子公司 | Method and device to determine a position shift of a focal area |
| US20100156421A1 (en) * | 2008-12-19 | 2010-06-24 | Johann Sukkau | Method and device for determining a position of a local coil in a magnetic resonance apparatus |
| CN201384493Y (en) * | 2009-03-12 | 2010-01-20 | 西门子迈迪特(深圳)磁共振有限公司 | Positioning device used for magnetic resonance system |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105551042A (en) * | 2015-12-15 | 2016-05-04 | 沈阳东软医疗系统有限公司 | Determination method and apparatus for mark point positions of scanning bed |
| CN105551042B (en) * | 2015-12-15 | 2018-09-18 | 沈阳东软医疗系统有限公司 | A kind of scanning bed mark point method for determining position and device |
| CN108459286A (en) * | 2017-02-20 | 2018-08-28 | 冯原 | Internal Mechanical Properties of Soft Tissues test method based on magnetic resonance imaging and device |
| CN107510470A (en) * | 2017-09-30 | 2017-12-26 | 苏州众志医疗科技有限公司 | Positioner and localization method for medical imaging device |
| CN108852355A (en) * | 2018-06-29 | 2018-11-23 | 上海东软医疗科技有限公司 | Nuclear magnetic resonance equipment and patient's displacement method for nuclear magnetic resonance equipment |
| CN111528895A (en) * | 2020-05-26 | 2020-08-14 | 苏州波影医疗技术有限公司 | CT visual positioning system and positioning method |
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