CN104274196A - Computed tomography device - Google Patents
Computed tomography device Download PDFInfo
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- CN104274196A CN104274196A CN201310285344.7A CN201310285344A CN104274196A CN 104274196 A CN104274196 A CN 104274196A CN 201310285344 A CN201310285344 A CN 201310285344A CN 104274196 A CN104274196 A CN 104274196A
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Abstract
The invention discloses a computed tomography device which comprises a storage unit, a judging unit, a unit for determining the position of a person to be examined and a virtual positioning image generating unit. The storage unit is used for storing a positioning image of an examined person and the position, corresponding to the positioning image, of the examined person. The judging unit is used for judging whether the positioning image of the examined person is applicable to a person to be examined or not. The unit for determining the position of the person to be examined is used for determining the position of the person to be examined when the positioning image of the examined person is applicable. The virtual positioning image generating unit is used for generating a virtual positioning image on the basis of the positioning image according to the difference of the position of the person to be examined and the position of the examined person. According to the computed tomography device, whether the stored positioning image is applicable to new tomography or not can be judged, the virtual positioning image is generated according to the positioning image when the stored positioning image is applicable to the new tomography, and therefore X-ray radiation generated by scanning the positioning image again is avoided.
Description
Technical field
The present invention relates to Medical Imaging, particularly ct apparatus.
Background technology
CT examination divides following step usually:
1. register person under inspection.In this step, person under inspection's identity information, person under inspection's position, person under inspection's approach axis, scanning position etc. can be inputted.
2. locate person under inspection.In this step, person under inspection faces upward according to predetermined position and lies, to lie on one's side or prostrate on sick bed, and under the laser lamp of frame is auxiliary, by Mobile sickbed, person under inspection is positioned appropriate location.
3. Scan orientation picture (TOPO image).In this step, the profile of person under inspection's health and organ is obtained.
4. tomoscan parameter is set, comprising the region needing tomoscan determined on the picture of location.
5. carry out tomoscan.
In the case of some, patient needs to carry out counting wheel diagnosis usually, and patient needs location picture scanning at every turn.Locating each time in picture scanning, patient can absorb some extra X-ray dosage.Generally speaking, can not there is significant change each location as bodily form during scanning and organ in patient.
Summary of the invention
In view of this, the present invention proposes a kind of ct apparatus, in order to reduce X-ray dosage further.
The invention provides a kind of ct apparatus, comprising: a memory element, its for store one inspection person a location picture and correspond to the position of inspection person described in the picture of described location; One judging unit, its for described in judging the location of inspection person similarly be noly be applicable to a person to be checked; One person's position determination unit to be checked, it as where applicable, determines the position of described person to be checked for the location as described inspection person; One virtual location is as generation unit, and it is for the difference according to the position of described person to be checked and the position of described inspection person, and the basis of described location picture generates a virtual location picture.
In one embodiment of this invention, described memory element is for the identity information of inspection person and scan setting described in storing; Described ct apparatus comprises a receiving element, and it is for receiving identity information and the scan setting of described person to be checked; The identity information of inspection person and the identity information of described person to be checked described in described judging unit is used for relatively, and when the identity information of described inspection person and the identity information of described person to be checked mate, according to the scan setting of described inspection person and the scan setting of described person to be checked, described in judgement, the location of inspection person similarly is noly be applicable to described person to be checked.
In one embodiment of this invention, the scan setting of described inspection person and the scan setting of described person to be checked comprise respectively described in inspection person and described person to be checked position, enter a direction and scanning area.
In one embodiment of this invention, described person's position determination unit to be checked comprises a photographing unit and a recognition unit, described photographing unit is for taking the photo of described person to be checked, and described recognition unit also determines the position of described person to be checked accordingly for a plurality of specific part or a plurality of wear markers identifying described person to be checked from described photo.
In one embodiment of this invention, described person's position determination unit to be checked is a sick bed position receiving element, and it receives the position of a sick bed, and described sick bed has the labelling of a relative ground static, and described person to be checked is located in described mark.
In one embodiment of this invention, described person's position determination unit to be checked is a position sensor, and it is for detecting the mark the position determining described person to be checked accordingly that are worn on described person to be checked.
In one embodiment of this invention, described memory element is set to a plurality of location picture for storing the identity information corresponding to described inspection person, and described judging unit is set to for judging in the picture of described a plurality of location, whether at least one is applicable to described person to be checked.
In one embodiment of this invention, described memory element is set to the tomoscan parameter for inspection person described in storing, and the tomoscan parameter of described inspection person corresponds to the scan setting of described inspection person; Described ct apparatus comprises a tomoscan parameter set unit, when described in described judging unit is judged, the identity information of inspection person and the identity information of described person to be checked mate, described in described tomoscan parameter set unit judges according to the scan setting of described person to be checked, whether the tomoscan parameter of inspection person is suitable for, and the tomoscan parameter of inspection person described in recommending at where applicable.
In one embodiment of this invention, described tomoscan parameter comprises bulb voltage, tube current and thickness.
Ct apparatus of the present invention can judge that the location stored similarly is noly be applicable to new tomoscan, and generates a virtual location picture at where applicable according to this location picture, thus the X-radiation avoiding again Scan orientation picture and produce.
Accompanying drawing explanation
The preferred embodiments of the present invention will be described in detail by referring to accompanying drawing below, the person of ordinary skill in the art is more clear that above-mentioned and other feature and advantage of the present invention, in accompanying drawing:
Figure 1A is the schematic block diagram of the ct apparatus according to the first embodiment of the present invention.
Figure 1B is the schematic perspective view of the ct apparatus shown in Figure 1A.
Fig. 2 A is the schematic block diagram of ct apparatus according to a second embodiment of the present invention.
Fig. 2 B is the schematic perspective view of the ct apparatus shown in Fig. 2 A.
In above-mentioned accompanying drawing, the Reference numeral adopted is as follows:
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearly, the present invention is described in more detail by the following examples.
Due to generally speaking, can not there is significant change in the bodily form of patient when each tomoscan and organ, therefore can reuse previous location picture.
Figure 1A is the schematic block diagram of the ct apparatus 100 according to the first embodiment of the present invention.Ct apparatus 100 comprises memory element 102, judging unit 104, person's position determination unit 106 to be checked and a virtual location as generation unit 108.Memory element 102 for store one inspection person a location picture and correspond to the position of inspection person of this location picture.Judging unit 104 is for judging that the location of inspection person similarly is noly be applicable to a person to be checked.Person's position determination unit 106 to be checked for ought the location of inspection person as where applicable, determine the position of person to be checked.Virtual location for according to the position of the person to be checked difference with the position of inspection person, the basis of location picture generates a virtual location picture as generation unit 108.
In the present embodiment, memory element 102 is also for storing identity information and the scan setting of inspection person.The scan setting of inspection person comprise inspection person position, enter a direction and scanning area.Ct apparatus 100 can comprise a receiving element 110, and it is for receiving identity information and the scan setting of person to be checked.The scan setting of person to be checked comprise person to be checked position, enter a direction and scanning area.The position of inspection person, person to be checked comprise lie on the back, lie on one's side, prostrate etc.Inspection person, a person's to be checked direction of entering comprises that head is advanced and foot is advanced.The scanning area of inspection person, person to be checked such as head, chest, abdominal part or heart etc.Judging unit 104 is the identity information of inspection person and the identity information of person to be checked more, and when the identity information of inspection person and the identity information of person to be checked mate, according to the scan setting of inspection person and the scan setting of person to be checked, judge that the location of inspection person similarly is noly be applicable to person to be checked.Such as, if judging unit 104 judges the identity information coupling (namely inspection person and the same people of person to be checked) of the identity information of inspection person and person to be checked, and its position is and lies on the back, enter a direction and be head advanced person, its scanning area is heart, then judge that the location picture of inspection person is applicable to this tomoscan of person to be checked.
In the present embodiment, person's position determination unit 106 to be checked comprises photographing unit 112 and a recognition unit 114.Figure 1B is the schematic perspective view of the ct apparatus 100 shown in Figure 1A.Ct apparatus 100 comprises frame 101 and a sick bed 103.Person to be checked is according to predetermined position and enter a direction and be located on sick bed 103.Photographing unit 112 is for taking the photo of person to be checked, and recognition unit 114 is for identifying a plurality of specific paries (such as the crown, extremity, face, palm etc.) of person to be checked or a plurality of wear markers (being such as worn on the labelling on the crown, extremity, face, palm etc.) and determining the position of person to be checked accordingly from this photo.
Virtual location is as generation unit 108 according to the difference of the position of person to be checked with the position of inspection person, and the basis of the location picture be suitable for this person to be checked generates a virtual location picture, and such as offset this location picture to form virtual location picture, side-play amount equals above-mentioned difference.
Ct apparatus 100, after Scan orientation picture, both can replace the location picture that memory element 102 stores, also can increase current location picture newly in memory element 102 with current location picture.That is, memory element 102 can store a plurality of location picture corresponding to the identity information of inspection person, and these location pictures have corresponding scan setting.Like this, judging unit 104 can judge in this plurality of location picture, whether at least one is applicable to person to be checked.
Ct apparatus 100 comprises a tomoscan unit 118.The tomoscan parameter (comprising bulb voltage, tube current and thickness etc.) used during tomoscan unit 118 tomoscan can be stored in memory element 102.These tomoscan parameters correspond to the scan setting of inspection person.Such as, the lying on the back of inspection person A, head scan setting that is advanced, heart scanning correspond to a specific ball tube voltage, tube current and thickness.Ct apparatus 100 can comprise a tomoscan parameter set unit 116, when judging unit 104 judges the identity information of inspection person and the identity information of person to be checked mates, according to the scan setting of person to be checked, tomoscan parameter set unit 116 judges whether the tomoscan parameter of inspection person is suitable for, and recommend the tomoscan parameter of inspection person at where applicable.Such as, if the scan setting of person A to be checked be lie on the back, head is advanced, heart scanning, then can judge that above-mentioned specific ball tube voltage, tube current and thickness are suitable for.Now, tomoscan parameter set unit 116 can insert these tomoscan parameters automatically, and the operator of ct apparatus 100 can directly confirm, unless he adjusts according to practical situation.
Fig. 2 A is the schematic block diagram of ct apparatus 200 according to a second embodiment of the present invention.Ct apparatus 200 comprises memory element 202, judging unit 204, person's position determination unit 206 to be checked and a virtual location as generation unit 208.Memory element 202 for store one inspection person a location picture and correspond to the position of inspection person of this location picture.Judging unit 204 is for judging that the location of inspection person similarly is noly be applicable to a person to be checked.Person's position determination unit 206 to be checked for ought the location of inspection person as where applicable, determine the position of person to be checked.Virtual location for according to the position of the person to be checked difference with the position of inspection person, the basis of location picture generates a virtual location picture as generation unit 208.
In the present embodiment, memory element 202 is also for storing identity information and the scan setting of inspection person.The scan setting of inspection person comprise inspection person position, enter a direction and scanning area.Ct apparatus 200 can comprise a receiving element 210, and it is for receiving identity information and the scan setting of person to be checked.The scan setting of person to be checked comprise person to be checked position, enter a direction and scanning area.The position of inspection person, person to be checked comprise lie on the back, lie on one's side, prostrate etc.Inspection person, a person's to be checked direction of entering comprises that head is advanced and foot is advanced.The scanning area of inspection person, person to be checked such as head, chest, abdominal part or heart etc.Judging unit 204 is the identity information of inspection person and the identity information of person to be checked more, and when the identity information of inspection person and the identity information of person to be checked mate, according to the scan setting of inspection person and the scan setting of person to be checked, judge that the location of inspection person similarly is noly be applicable to person to be checked.Such as, if judging unit 204 judges the identity information coupling (namely inspection person and the same people of person to be checked) of the identity information of inspection person and person to be checked, and its position is and lies on the back, enter a direction and be head advanced person, its scanning area is heart, then judge that the location picture of inspection person is applicable to this tomoscan of person to be checked.
In the present embodiment, person's position determination unit 206 to be checked comprises a sick bed position receiving element 212, and it receives the position of a sick bed 203, and sick bed 203 has the labelling 205 of a relative ground static, and person to be checked is located in labelling 205 place.Fig. 2 B is the schematic perspective view of the ct apparatus 200 shown in Fig. 2 A.Ct apparatus 200 comprises a frame 201 and sick bed 203.Person to be checked is according to predetermined position and enter a direction and be located on sick bed 203.One laser lamp 211 to sick bed 203 transmission one laser beam, to form labelling 205.The difference of the position of person to be checked or person position to be checked and inspection person position is determined in the position of the sick bed 203 that person's position determination unit 206 to be checked obtains according to sick bed position receiving element 212.
In other embodiments, person's position determination unit 206 to be checked can also be a position sensor, and it is for detecting the mark the position determining person to be checked accordingly that are worn on person to be checked.
Virtual location is as generation unit 208 according to the difference of the position of person to be checked with the position of inspection person, and the basis of the location picture be suitable for this person to be checked generates a virtual location picture, and such as offset this location picture to form virtual location picture, side-play amount equals above-mentioned difference.
Ct apparatus 200, after Scan orientation picture, both can replace the location picture that memory element 202 stores, also can increase current location picture newly in memory element 202 with current location picture.That is, memory element 202 can store a plurality of location picture corresponding to the identity information of inspection person, and these location pictures have corresponding scan setting.Like this, judging unit 204 can judge in this plurality of location picture, whether at least one is applicable to person to be checked.
Ct apparatus 200 comprises a tomoscan unit 218.The tomoscan parameter (comprising bulb voltage, tube current and thickness etc.) used during tomoscan unit 218 tomoscan can be stored in memory element 202.These tomoscan parameters correspond to the scan setting of inspection person.Such as, the lying on the back of inspection person A, head scan setting that is advanced, heart scanning correspond to a specific ball tube voltage, tube current and thickness.Ct apparatus 200 can comprise a tomoscan parameter set unit 216, when judging unit 204 judges the identity information of inspection person and the identity information of person to be checked mates, according to the scan setting of person to be checked, tomoscan parameter set unit 216 judges whether the tomoscan parameter of inspection person is suitable for, and recommend the tomoscan parameter of inspection person at where applicable.Such as, if the scan setting of person A to be checked be lie on the back, head is advanced, heart scanning, then can judge that above-mentioned specific ball tube voltage, tube current and thickness are suitable for.Now, tomoscan parameter set unit 216 can insert these tomoscan parameters automatically, and the operator of ct apparatus 200 can directly confirm, unless he adjusts according to practical situation.
Ct apparatus of the present invention can judge that the location stored similarly is noly be applicable to new tomoscan, and generates a virtual location picture at where applicable according to this location picture, thus the X-radiation avoiding again Scan orientation picture and produce.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. a ct apparatus, comprising:
One memory element, its for store one inspection person a location picture and correspond to the position of inspection person described in the picture of described location;
One judging unit, its for described in judging the location of inspection person similarly be noly be applicable to a person to be checked;
One person's position determination unit to be checked, it as where applicable, determines the position of described person to be checked for the location as described inspection person;
One virtual location is as generation unit, and it is for the difference according to the position of described person to be checked and the position of described inspection person, and the basis of described location picture generates a virtual location picture.
2. ct apparatus as claimed in claim 1, is characterized in that, described memory element is for the identity information of inspection person and scan setting described in storing; Described ct apparatus comprises a receiving element, and it is for receiving identity information and the scan setting of described person to be checked; The identity information of inspection person and the identity information of described person to be checked described in described judging unit is used for relatively, and when the identity information of described inspection person and the identity information of described person to be checked mate, according to the scan setting of described inspection person and the scan setting of described person to be checked, described in judgement, the location of inspection person similarly is noly be applicable to described person to be checked.
3. ct apparatus as claimed in claim 2, is characterized in that, described in the scan setting of described inspection person and the scan setting of described person to be checked comprise respectively inspection person and described person to be checked position, enter a direction and scanning area.
4. ct apparatus as claimed any one in claims 1 to 3, it is characterized in that, described person's position determination unit to be checked comprises a photographing unit and a recognition unit, described photographing unit is for taking the photo of described person to be checked, and described recognition unit also determines the position of described person to be checked accordingly for a plurality of specific part or a plurality of wear markers identifying described person to be checked from described photo.
5. ct apparatus as claimed any one in claims 1 to 3, it is characterized in that, described person's position determination unit to be checked is a sick bed position receiving element, it receives the position of a sick bed, described sick bed has the labelling of a relative ground static, and described person to be checked is located in described mark.
6. ct apparatus as claimed any one in claims 1 to 3, it is characterized in that, described person's position determination unit to be checked is a position sensor, and it is for detecting the mark the position determining described person to be checked accordingly that are worn on described person to be checked.
7. ct apparatus as claimed any one in claims 1 to 3, it is characterized in that, described memory element is set to a plurality of location picture for storing the identity information corresponding to described inspection person, and described judging unit is set to for judging in the picture of described a plurality of location, whether at least one is applicable to described person to be checked.
8. the ct apparatus according to any one of claim 2 to 3, it is characterized in that, described memory element is set to the tomoscan parameter for inspection person described in storing, and the tomoscan parameter of described inspection person corresponds to the scan setting of described inspection person; Described ct apparatus comprises a tomoscan parameter set unit, when described in described judging unit is judged, the identity information of inspection person and the identity information of described person to be checked mate, described in described tomoscan parameter set unit judges according to the scan setting of described person to be checked, whether the tomoscan parameter of inspection person is suitable for, and the tomoscan parameter of inspection person described in recommending at where applicable.
9. ct apparatus as claimed in claim 8, it is characterized in that, described tomoscan parameter comprises bulb voltage, tube current and thickness.
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| CN201310285344.7A CN104274196B (en) | 2013-07-09 | 2013-07-09 | Ct apparatus |
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| CN201310285344.7A CN104274196B (en) | 2013-07-09 | 2013-07-09 | Ct apparatus |
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| CN107468266A (en) * | 2017-07-07 | 2017-12-15 | 沈阳东软医疗系统有限公司 | A kind of scan method and Medical Devices |
| CN108050936A (en) * | 2017-12-29 | 2018-05-18 | 百维雅（东莞）网络技术有限公司 | A kind of virtual image positioner and method |
| CN108182434A (en) * | 2017-12-27 | 2018-06-19 | 上海联影医疗科技有限公司 | A kind of image processing method and device |
| CN110956633A (en) * | 2020-02-26 | 2020-04-03 | 南京安科医疗科技有限公司 | Rapid CT scanning method and system based on virtual stereotactic image |
| CN112807005A (en) * | 2019-11-15 | 2021-05-18 | 上海西门子医疗器械有限公司 | Computed tomography method, device and system |
| CN112932522A (en) * | 2021-02-03 | 2021-06-11 | 上海联影医疗科技股份有限公司 | Medical image acquisition method and device and computer equipment |
| CN113645307A (en) * | 2021-08-18 | 2021-11-12 | 中国人民解放军东部战区总医院 | Network sharing positioning database system of nuclear magnetic resonance system and establishing and using method |
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