CN102908161A - Scanning positioning method for CT (Computed Tomography) system - Google Patents
Scanning positioning method for CT (Computed Tomography) system Download PDFInfo
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- CN102908161A CN102908161A CN2012104190449A CN201210419044A CN102908161A CN 102908161 A CN102908161 A CN 102908161A CN 2012104190449 A CN2012104190449 A CN 2012104190449A CN 201210419044 A CN201210419044 A CN 201210419044A CN 102908161 A CN102908161 A CN 102908161A
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Abstract
The invention provides a scanning positioning method for a CT (Computed Tomography) system. The scanning positioning method comprises the following steps of: (a) positioning a patient on a movable bed of the CT system; (b) lightening a laser positioning lamp; (c) controlling the movable bed to move, and moving a positioning line which is projected onto the body surface of the patient by the laser positioning lamp move to a first preset position on the body surface of the patient; (d) when the positioning line arrives at the first preset position on the body surface of the patient, controlling the movable bed to stop moving, wherein the current position of the movable bed is set as a first position for CT scanning; (e) controlling the movable bed to move, so as to make the positioning line move to a second preset device on the body surface of the patient; and (f) when the positioning line arrives at the second preset position on the body surface of the patient, controlling the movable bed to stop moving, wherein the current position of the movable bed is set as a second position for CT scanning. According to the scanning positioning method, the initial position and terminating position of a CT scanning area can be determined intuitively, so that subjective assessment of a doctor is eliminated, and an accurate scanning area is obtained.
Description
Technical field
The present invention relates to the instrument for radiodiagnosis, specifically, relate to the Scan orientation method of computed tomograph scanner system.
Background technology
Computed tomography (calling CT in the following text) system is a kind of equipment that high-resolution human body section image is provided, and it can be for medical diagnosis on disease provides the information that usually are difficult to obtain accurately in a large number, thereby has been widely applied in the clinical every subjects.
In general, the CT system comprises hardware and the software that hardware is controlled, and the hardware of CT system mainly is made of moving bed, scanning means and control station.Wherein, moving bed is used for the patient is put the position, and scanning means comprises gantry and is arranged on radiation source and detector in the gantry, is used for being rotated irradiation and surveying the ray signal that passes human body around the specific part of people's long axis of body to the patient.Control station is used for operation control, signal processing and image demonstration etc.
When using existing CT system that the patient is carried out the CT scan inspection, the doctor first mobile bedside in the CT system puts the position to the patient.After finish the pendulum position, light laser localized light comparing, laser localized light comparing projects position line one at patient body-surface.Then, the doctor presses advancing a key or moving back a key on the moving bed moves moving bed, and the original position of definite CT scan.After the original position of having determined CT scan, the doctor gets back to control station and input scan length, has so just determined that the CT scan device is in patient's scanning area with it.At last, the CT scan device scans the patient according to top definite scanning area.
The weak point of the Scan orientation method and apparatus of existing CT system is, 1. by being determined scanning starting position by laser localized light comparing and determine scanning area to control station input scan length, the scanning final position determine to depend on the sweep length value of inputting.2. need the doctor that the length dimension of scanning area is had accurately estimation, this does not have the doctor of intuitive concept to bring difficulty to some to length.3. sweep length is definite not directly perceived; so that in clinical practice; there is relatively large deviation in the size of the sweep length that often can occur inputting and actual needs scanning; thereby make physical scan area excessive or too small; physical scan area is excessive; then the patient will accept unnecessary radiation, and physical scan area is too small, then drain sweep can occur.
Summary of the invention
The present invention makes in order to solve the above-mentioned technical problem that exists in the prior art, its purpose is to provide the Scan orientation method of a kind of CT system, make it possible to determine intuitively original position and the final position in CT scan zone, thereby get rid of doctor's subjective estimation and obtain accurate scanning area.
To achieve these goals, the invention provides the Scan orientation method of a kind of CT system, this Scan orientation method comprises: a) patient on the moving bed of CT system is put the position; B) light laser localized light comparing; C) the described moving bed of control moves, and makes described laser localized light comparing be incident upon position line on the patient body-surface and shifts to the first precalculated position on the patient body-surface; D) be incident upon position line on the patient body-surface when arriving described the first precalculated position on the patient body-surface when described laser localized light comparing, control described moving bed and stop mobilely, and the position of described moving bed this moment is made as the primary importance of CT scan; E) the described moving bed of control moves, and makes described laser localized light comparing be incident upon position line on the patient body-surface and shifts to the second precalculated position on the patient body-surface; And f) is incident upon position line on the patient body-surface when arriving described the second precalculated position on the patient body-surface when described laser localized light comparing, controls described moving bed and stop mobilely, and the position of described moving bed this moment is made as the second position of CT scan.Here, the primary importance of CT scan and the second position can be distinguished original position and the final position of corresponding CT scan, also can distinguish final position and the original position of corresponding CT scan.In other words, the scanning direction of described CT system can be the second position from the primary importance of described CT scan to described CT scan, also can be the primary importance from the second position of described CT scan to described CT scan.
Preferably, can be arranged on advancing a key or move back a key and control described moving bed and move on the described moving bed by pressing, describedly advance a key or move back a key and control described moving bed and stop mobilely by stopping pressing, and by pressing the positioning key that is arranged on the described moving bed primary importance of described CT scan and the second position of described CT scan are set.Positioning key on the described moving bed is unexistent on the existing CT scan moving bed.
In addition, can also cancel the primary importance of the described CT scan that has arranged and the second position of described CT scan by pressing the clear key that is arranged on the described moving bed.Perhaps, cancel the primary importance of the described CT scan that has arranged and the second position of described CT scan by extinguishing described laser localized light comparing.
By top narration as can be known, adopt the Scan orientation method of CT provided by the present invention system, can determine intuitively original position and the final position in CT scan zone, thereby get rid of doctor's subjective estimation and obtain accurate scanning area.Described in the present invention and be arranged on that positioning key on the CT scan moving bed and clear key can be used for determining easily and cancel CT scan regional.This method is not subjected to the restriction of the height of bed and berth, can be used for the armarium that any application position line positions.
In order to realize above-mentioned and relevant purpose, one or more aspects of the present invention comprise the feature that the back will describe in detail and particularly point out in the claims.Following explanation and accompanying drawing describe some illustrative aspects of the present invention in detail.Yet, the indication of these aspects only be some modes that can use in the variety of way of principle of the present invention.In addition, the present invention is intended to comprise all these aspects and their equivalent.
Description of drawings
By the content of reference below in conjunction with the description of the drawings and claims, other purpose of the present invention and result will understand and easy to understand more.In the accompanying drawings:
Fig. 1 is sketch map, shows the Scan orientation method of CT of the present invention system.
The specific embodiment
In the following description, for purposes of illustration, for the complete understanding to one or more embodiment is provided, many details have been set forth.Yet, clearly, can not have to realize these embodiment in the situation of these details yet.
Come below with reference to accompanying drawings that embodiments of the present invention is described in detail.
Fig. 1 is sketch map, shows the Scan orientation method of CT of the present invention system.As shown in Figure 1, the Scan orientation method of the described CT of one embodiment of the present of invention system comprises the following steps:
Step a): the doctor puts the position on moving bed 1 limit of CT system to the patient 2 on this moving bed 1.
Step b): light the laser localized light comparing (not shown).Laser localized light comparing projects the position line (not shown) one at patient's 2 body surfaces.
Step c): control moving bed 1 moves, and makes described laser localized light comparing be incident upon position line on patient's 2 body surfaces and shifts to the first precalculated position P1 on patient's 2 body surfaces.Specifically, can be arranged on advancing a key (not shown) or moving back the movement that a key (not shown) is controlled moving bed 1 on the moving bed 1 by pressing.When moving bed 1 moves, drive patient 2 and move with respect to laser localized light comparing, in other words, when moving bed 1 moved, the position line that laser localized light comparing throws was also moving with respect to patient 2.The doctor can determine intuitively that according to patient's situation certain precalculated position on the patient body-surface is the first precalculated position P1, the original position that this position P1 can corresponding scanning, final position that also can corresponding scanning.
Step d): when laser localized light comparing is incident upon position line on the patient body-surface when arriving described the first precalculated position P1 on the patient body-surface, control moving bed 1 stops mobile, and the position of 1 this moment of moving bed is made as the primary importance of CT scan.Specifically, can describedly advance a key or move back a key and control moving bed 1 and stop mobilely by stopping pressing, then the primary importance of CT scan is set by pressing the positioning key (not shown) that is arranged on the moving bed 1.When pressing positioning key, have in the signal input scan control station, scan controller gets off the location records of moving bed 1 this moment, initial position or the final position of moving bed 1 when carrying out CT scan.
Step e): control moving bed 1 moves, and makes laser localized light comparing be incident upon position line on patient's 2 body surfaces and shifts to the second precalculated position P2 on patient's 2 body surfaces.This step and step c) are roughly the same.But should note, if the original position of the corresponding scanning of the first shift position P1 in the step c), the final position of the corresponding scanning of the second precalculated position P2 in this step e) then, otherwise, if the final position of the corresponding scanning of the first precalculated position P1 in the step c), the then original position of the corresponding scanning of the second precalculated position P2 in this step e).Zone between the first precalculated position P1 and the second precalculated position P2 is exactly scanning area.
Step f): when laser localized light comparing is incident upon position line on patient's 2 body surfaces when arriving the second precalculated position P2 on the patient body-surface, control moving bed 1 stops mobile, and the position of 1 this moment of moving bed is made as the second position of CT scan.This step and step d) are roughly the same.But it should be noted that if the initial position of the position of the moving bed that records in the step d) 1 moving bed 1 during as CT scan the final position of the position of the moving bed 1 that then records in this step f) moving bed 1 during as CT scan.Otherwise, if the final position of the position of the moving bed that records in the step d) 1 moving bed 1 during as CT scan, the original position of the position of the moving bed 1 that then records in this step f) moving bed 1 during as CT scan.
In other words, the scanning direction of described CT system can be the second position from the primary importance of described CT scan to described CT scan, perhaps the primary importance from the second position of described CT scan to described CT scan.
If wish that behind the original position that is provided with CT scan and/or final position the set value of cancellation in order to re-start setting, then can realize according to following two kinds of methods.A kind of method is, at moving bed 1 the clear key (not shown) is set, and cancels the primary importance of the described CT scan that has arranged and the second position of described CT scan by pressing this clear key.Second method is to cancel the primary importance of the described CT scan that has arranged and the second position of described CT scan by extinguishing described laser localized light comparing.
By top narration as can be known, adopt the Scan orientation method of CT provided by the present invention system, can determine intuitively original position and the final position in CT scan zone, thereby get rid of doctor's subjective estimation and obtain accurate scanning area.Described in the present invention and be arranged on that positioning key on the CT scan moving bed and clear key can be used for determining easily and cancel CT scan regional.This method is not subjected to the restriction of the height of bed and berth, can be used for the armarium that any application position line positions.
Although disclose the present invention in conjunction with the preferred embodiment that is shown specifically and describes, but those skilled in the art are to be understood that, the Scan orientation method of the CT system that proposes for the invention described above can also be made various improvement on the basis that does not break away from content of the present invention.Therefore, protection scope of the present invention should be determined by the content of appending claims.
Claims (5)
1. the Scan orientation method of a CT system comprises:
A) patient on the moving bed of CT system is put the position;
B) light laser localized light comparing;
C) the described moving bed of control moves, and makes described laser localized light comparing be incident upon position line on the patient body-surface and shifts to the first precalculated position on the patient body-surface;
D) be incident upon position line on the patient body-surface when arriving described the first precalculated position on the patient body-surface when described laser localized light comparing, control described moving bed and stop mobilely, and the position of described moving bed this moment is made as the primary importance of CT scan;
E) the described moving bed of control moves, and makes described laser localized light comparing be incident upon position line on the patient body-surface and shifts to the second precalculated position on the patient body-surface; And
F) be incident upon position line on the patient body-surface when arriving described the second precalculated position on the patient body-surface when described laser localized light comparing, control described moving bed and stop mobilely, and the position of described moving bed this moment is made as the second position of CT scan.
2. the Scan orientation method of CT as claimed in claim 1 system, wherein, the scanning direction of described CT system is the second position from the primary importance of described CT scan to described CT scan, perhaps the primary importance from the second position of described CT scan to described CT scan.
3. the Scan orientation method of CT as claimed in claim 1 system, wherein, be arranged on advancing a key or move back a key and control described moving bed and move on the described moving bed by pressing, describedly advance a key or move back a key and control described moving bed and stop mobilely by stopping pressing, and by pressing the positioning key that is arranged on the described moving bed primary importance of described CT scan and the second position of described CT scan are set.
4. the Scan orientation method of CT as claimed in claim 3 system wherein, is cancelled the primary importance of the described CT scan that has arranged and the second position of described CT scan by pressing the clear key that is arranged on the described moving bed.
5. the Scan orientation method of CT as claimed in claim 3 system wherein, is cancelled the primary importance of the described CT scan that has arranged and the second position of described CT scan by extinguishing described laser localized light comparing.
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| CN2012104190449A CN102908161A (en) | 2012-10-26 | 2012-10-26 | Scanning positioning method for CT (Computed Tomography) system |
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| CN2012104190449A CN102908161A (en) | 2012-10-26 | 2012-10-26 | Scanning positioning method for CT (Computed Tomography) system |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104107063A (en) * | 2013-04-18 | 2014-10-22 | 上海联影医疗科技有限公司 | Medical image scanning method and device |
| CN105167794A (en) * | 2015-09-02 | 2015-12-23 | 冯庆宇 | Scanning positioning system and method |
| CN106821408A (en) * | 2017-01-04 | 2017-06-13 | 沈阳东软医疗系统有限公司 | A kind of scan method and device |
| CN108634975A (en) * | 2018-04-26 | 2018-10-12 | 沈阳东软医疗系统有限公司 | Scan orientation method and apparatus |
| CN108670280A (en) * | 2018-05-28 | 2018-10-19 | 上海联影医疗科技有限公司 | Medical Imaging System and the method for shooting medical image |
| CN112043302A (en) * | 2020-09-21 | 2020-12-08 | 上海联影医疗科技有限公司 | Positioning lamp control method and device, computer equipment and medical equipment |
| US11622740B2 (en) | 2018-05-28 | 2023-04-11 | Shanghai United Imaging Healthcare Co., Ltd. | Systems and methods for taking X-ray images |
| US11839777B2 (en) | 2020-09-21 | 2023-12-12 | Shanghai United Imaging Healthcare Co., Ltd. | Medical systems including a positioning lamp and a projection device and control methods of the medical systems |
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| US20020099284A1 (en) * | 2000-11-17 | 2002-07-25 | Klaus Herrmann | Method and apparatus for characterizing a location at an examination subject |
| CN101167654A (en) * | 2006-10-25 | 2008-04-30 | 东软飞利浦医疗设备系统有限责任公司 | X-ray machine bed body movement controlling method and controlling device thereof |
| CN102525524A (en) * | 2010-12-20 | 2012-07-04 | 上海西门子医疗器械有限公司 | Positioning device for scanning positioning images and device |
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| US5212717A (en) * | 1990-06-27 | 1993-05-18 | Kabushiki Kaisha Toshiba | Computed tomography scanner apparatus |
| US20020099284A1 (en) * | 2000-11-17 | 2002-07-25 | Klaus Herrmann | Method and apparatus for characterizing a location at an examination subject |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104107063A (en) * | 2013-04-18 | 2014-10-22 | 上海联影医疗科技有限公司 | Medical image scanning method and device |
| CN105167794A (en) * | 2015-09-02 | 2015-12-23 | 冯庆宇 | Scanning positioning system and method |
| CN106821408A (en) * | 2017-01-04 | 2017-06-13 | 沈阳东软医疗系统有限公司 | A kind of scan method and device |
| CN108634975A (en) * | 2018-04-26 | 2018-10-12 | 沈阳东软医疗系统有限公司 | Scan orientation method and apparatus |
| CN108670280A (en) * | 2018-05-28 | 2018-10-19 | 上海联影医疗科技有限公司 | Medical Imaging System and the method for shooting medical image |
| US11622740B2 (en) | 2018-05-28 | 2023-04-11 | Shanghai United Imaging Healthcare Co., Ltd. | Systems and methods for taking X-ray images |
| CN112043302A (en) * | 2020-09-21 | 2020-12-08 | 上海联影医疗科技有限公司 | Positioning lamp control method and device, computer equipment and medical equipment |
| US11839777B2 (en) | 2020-09-21 | 2023-12-12 | Shanghai United Imaging Healthcare Co., Ltd. | Medical systems including a positioning lamp and a projection device and control methods of the medical systems |
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Owner name: PHILIPS (CHINA) INVESTMENT CO., LTD. Effective date: 20140218 Owner name: DONGRUAN MEDICAL SYSTEMS CO., LTD., SHENYANG Free format text: FORMER OWNER: DONGRUAN PHILIPS MEDICAL EQUIPMENT AND SYSTEM CO., LTD. Effective date: 20140218 |
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Effective date of registration: 20140218 Address after: Hunnan New Century Road 110179 Shenyang city of Liaoning Province, No. 16 Applicant after: Dongruan Medical Systems Co., Ltd., Shenyang Applicant after: Philips (China) Investment Co., Ltd. Address before: Hunnan rookie street Shenyang city Liaoning province 110179 No. 2 East Software Park Applicant before: Dongruan Philips Medical Equipment and System Co., Ltd. |
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Application publication date: 20130206 |