CN102688053A - System and method for fusing image of positron emission tomography and image of magnetic resonance imaging - Google Patents
System and method for fusing image of positron emission tomography and image of magnetic resonance imaging Download PDFInfo
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- CN102688053A CN102688053A CN201110069174XA CN201110069174A CN102688053A CN 102688053 A CN102688053 A CN 102688053A CN 201110069174X A CN201110069174X A CN 201110069174XA CN 201110069174 A CN201110069174 A CN 201110069174A CN 102688053 A CN102688053 A CN 102688053A
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- 238000002595 magnetic resonance imaging Methods 0.000 title claims abstract description 79
- 238000000034 method Methods 0.000 title claims abstract description 16
- 238000002600 positron emission tomography Methods 0.000 title abstract 5
- 230000004927 fusion Effects 0.000 claims abstract description 14
- 238000007689 inspection Methods 0.000 claims abstract description 13
- 238000003384 imaging method Methods 0.000 claims abstract description 4
- 238000003325 tomography Methods 0.000 claims description 87
- 239000000463 material Substances 0.000 claims description 9
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 235000007164 Oryza sativa Nutrition 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 235000009566 rice Nutrition 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims description 2
- 240000007594 Oryza sativa Species 0.000 claims 1
- 238000012636 positron electron tomography Methods 0.000 description 21
- 241000209094 Oryza Species 0.000 description 2
- 238000012879 PET imaging Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000007499 fusion processing Methods 0.000 description 2
- 210000003484 anatomy Anatomy 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000002591 computed tomography Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000002059 diagnostic imaging Methods 0.000 description 1
- 230000004060 metabolic process Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 210000004872 soft tissue Anatomy 0.000 description 1
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Abstract
The invention provides a system and a method for fusing an image of positron emission tomography (PET) and an image of magnetic resonance imaging (MRI), belonging to medical equipment field. The system comprises: a magnetic resonance scanner (MRS) for generating the image of the MRI; a positron emission tomographic scanner (PETS) for generating the image of the PET, wherein an angle between a center line of a patient aperture of the PETS and a center line of a patient aperture of the MRS is [phi]; a rotatable patient inspection bed disposed between the PETS and the MRS; and a piece of operation equipment used for controlling imaging of PETS and MRS, storing, displaying and utilizing a position relationship between tomographic images to fuse the image of the MRI and the image of the PET, and controlling rotation and movement of the patient inspection bed. The system and the method using a technical scheme in the invention can realize fusion of the image of the PET and the image of the MRI on the same machine.
Description
Technical field
The present invention relates to medical instruments field, be meant a kind of system and method that merges positron emission computerized tomography image and magnetic resonance imaging image especially.
Background technology
PET-CT (Positron Emission Computed Tomography-computed tomography; Positron emission computerized tomography-computer body-layer video picture) CT and PET are combined together; The precise anatomical location of focus is provided by CT; And PET provides detailed function of focus and metabolism equimolecular information, has sensitivity, accurate, special and locate characteristics such as accurate, and a video picture can obtain the faultage image in each orientation of whole body; Can open-and-shut understanding whole body integral status, reach early discovery focus and the purpose that diagnoses the illness.The appearance of PET-CT is the revolution again of Medical Imaging, has received generally acknowledging and extensive concern of medical circle.Realize the fusion of function and anatomical structure video picture, in clinical and scientific research, all obtained immense success.
MRI (Magnetic Resonance Imaging; Magnetic resonance imaging) is the another kind of developing method of dissecting; Compare it with CT and have better soft tissue contrast and spatial resolution, but also do not have the mature technique scheme can realize that the same machine of PET and MRI merges at present, like this when merging PET image and MRI image; Need expend more resource, improve the cost of image co-registration.
Summary of the invention
The technical problem that the present invention will solve provides a kind of system and method that merges positron emission computerized tomography image and magnetic resonance imaging image, can realize that the same machine of positron emission computerized tomography image and magnetic resonance imaging image merges.
For solving the problems of the technologies described above, embodiments of the invention provide technical scheme following:
On the one hand, a kind of system that merges positron emission computerized tomography image and magnetic resonance imaging image is provided, comprises:
Be used to generate the MR scanner of magnetic resonance imaging image;
Be used to generate the positron emission computerized tomography device of positron emission computerized tomography image, and patient's centerline hole of said positron emission computerized tomography device becomes the Φ angle with patient's centerline hole of said MR scanner, wherein, Φ is not more than 180 ° greater than 0 °;
Place between said positron emission computerized tomography device and the said MR scanner, rotatable movably patient bed;
Be used to control the imaging of said positron emission computerized tomography device and said MR scanner; Store, show and utilize the position relation between the tomograph to merge magnetic resonance imaging image and positron emission computerized tomography image; And control said patient bed rotation and mobile operating equipment, patient bedly be connected respectively with said with said positron emission computerized tomography device, said MR scanner.
Wherein, said patient bed comprising:
Removable patient bed bed body that can 0 °～180 ° of rotations;
With said patient bed bed body is support, but on said patient bed bed body the bed board of rectilinear translation.
Wherein, the said patient bed adjusting device that also comprises the height that is used to regulate said patient bed bed body and said bed board.
Wherein, said positron emission computerized tomography device is beyond 1 gaussian line of said MR scanner.
Wherein, the distance between said positron emission computerized tomography device and the said MR scanner is a 3-7 rice.
Wherein, the shell of said positron emission computerized tomography device is pasted with the radio shielding material.
Wherein, the shell of said MR scanner is pasted with the radio shielding material.
Wherein, said radio shielding material is a copper.
The present invention also provides a kind of method that merges positron emission computerized tomography image and magnetic resonance imaging image; Be applied to merge in the system of positron emission computerized tomography image and magnetic resonance imaging image; Said system comprises MR scanner, positron emission computerized tomography device, patient bed and operating equipment; Wherein, patient's centerline hole of said positron emission computerized tomography device becomes the Φ angle with patient's centerline hole of said MR scanner, and is said patient bed between said positron emission computerized tomography device and said MR scanner; And rotatable removable, said method comprises:
Said operating equipment is controlled the said patient bed patient hole that moves into said MR scanner, and said patient on patient bed is carried out magnetic resonance imaging, and the magnetic resonance imaging image that obtains of storage;
Said operating equipment is controlled the said patient bed patient hole that moves into said positron emission computerized tomography device, and said patient on patient bed is carried out positron emission computerized tomography, and the positron emission computerized tomography image that obtains of storage;
Said operating equipment utilizes the position relation between the tomograph, and said magnetic resonance imaging image and said positron emission computerized tomography image are carried out image co-registration.
Wherein, But but saidly patient bedly also comprising removable can 0 °～180 ° of rotations and patient bed bed body height up and down height up and down and but the bed board and being used to of rectilinear translation is regulated the height of said patient bed bed body and said bed board on said patient bed bed body adjusting device, said operating equipment is controlled the said patient bed patient hole that moves into said MR scanner and is comprised:
Said operating equipment is controlled said patient bed bed body and is moved; Get into the inspection area of said MR scanner; The said patient bed bed body of said operating equipment control rotation; Make said patient bed centrage parallel with patient's centerline hole of said MR scanner; Adjust the height of said patient bed bed body or bed board, make the said patient bed board can be over against the patient hole of said MR scanner, said afterwards operating equipment be controlled the parallel patient hole of the patient being sent into said MR scanner of moving of said bed board;
Said operating equipment is controlled the said patient bed patient hole that moves into said positron emission computerized tomography device and is comprised:
Said operating equipment is controlled said patient bed bed body and is moved; Get into the inspection area of said positron emission computerized tomography device; The said patient bed bed body of said operating equipment control rotation; Make said patient bed centrage parallel with patient's centerline hole of said positron emission computerized tomography device; Adjust the height of said patient bed bed body or bed board, make the said patient bed board can be over against the patient hole of said positron emission computerized tomography device, said afterwards operating equipment be controlled the parallel patient hole of the patient being sent into said positron emission computerized tomography device of moving of said bed board.
Technical scheme of the present invention has following beneficial effect:
In the such scheme; Patient's centerline hole of MR scanner and patient's centerline hole of positron emission computerized tomography device are at the same space; Rotatable patient bed can between two equipment, moving when patient checks, can be done magnetic resonance imaging earlier like this; Then through the rotatable movably patient bed inspection area of sending into patient the positron emission computerized tomography device; Carry out positron emission computerized tomography, when the end of scan carries out positron emission computerized tomography image and magnetic resonance imaging image co-registration, owing to use same examinating couch; Positron emission computerized tomography image and magnetic resonance imaging image have the position relation between the tomograph; Can realize the same machine image co-registration of positron emission computerized tomography image and magnetic resonance imaging image, the fusion process simple and fast has reduced the cost of image co-registration.
Description of drawings
Fig. 1 is the system structure sketch map of fusion positron emission computerized tomography image of the present invention and magnetic resonance imaging image.
The specific embodiment
For technical problem, technical scheme and advantage that embodiments of the invention will be solved is clearer, will combine accompanying drawing and specific embodiment to be described in detail below.
Embodiments of the invention provide a kind of system and method that merges positron emission computerized tomography image and magnetic resonance imaging image, can realize that the same machine of positron emission computerized tomography image and magnetic resonance imaging image merges.
Of Fig. 1, this system comprises:
Be used to generate the MR scanner 1 of magnetic resonance imaging image;
Be used to generate the positron emission computerized tomography device 2 of positron emission computerized tomography image, wherein, patient's centerline hole of positron emission computerized tomography device 2 becomes the Φ angle with patient's centerline hole of MR scanner 1, and Φ is not more than 180 ° greater than 0 °;
Place between positron emission computerized tomography device 2 and the MR scanner 1 rotatable patient bed 3;
Be used to control positron emission computerized tomography device 2 and MR scanner 1 imaging; Store, show and utilize the position relation between the tomograph to merge magnetic resonance imaging image and positron emission computerized tomography image; And the operating equipment 4 of controlling patient bed 3 rotations and moving, be connected respectively with patient bed 3 with positron emission computerized tomography device 2, MR scanner 1.
Wherein, patient bed 3 comprise:
Removable patient bed bed body that can 0 °～180 ° of rotations;
With this patient bed bed body is support, but on this patient bed bed body the bed board of rectilinear translation.
Wherein, but the equal height up and down of patient bed bed body and bed board, and patient bed 3 also comprise the adjusting device of the height that is used to regulate patient bed body and bed board.
As shown in Figure 1, PET equipment 2 is positioned at the same space with MRI equipment 1, and in vertical direction, patient's PET centerline hole and patient's MRI centerline hole intersect the Φ angle, and wherein, Φ is not more than 180 ° greater than 0 °.Patient bed 3 can move between two equipment.
The magnetic field of MRI becomes the ellipse trapezoidal profile; Outside from the MRI magnet center; Magnetic field more and more a little less than, in order to reduce interacting between MRI equipment and the PET equipment, can PET equipment be placed on beyond 1 gaussian line of MRI equipment; Particularly, the distance between MRI equipment and the PET equipment can be 3-7 rice.Because patient bed bed body is all removable with bed board, so can satisfy distance between MRI equipment and PET equipment enough far the time, the patient on patient bed also can move to the inspection area of another one equipment from the inspection area of an equipment.
For the interference of the high-intensity magnetic field that reduces MRI and emission radio frequency to PET; And the electromagnetic wave of PET emission is to the interference of MRI; Can attach the radio shielding material at the PET shell, can stop the Radio frequency interference of MRI on the one hand, also can stop of the interference of the radio-frequency transmissions of PET simultaneously MRI to it.
Likewise, also can attach the radio shielding material at the MRI shell.
Particularly, the radio shielding material can be copper.
Further, can adjust the operating frequency of MRI and two equipment of PET, the service band scope of two equipment is not intersected to reduce interference each other, the equipment that can effectively prevent like this produces " pseudo-shadow ".
Below in conjunction with the system of fusion positron emission computerized tomography image and magnetic resonance imaging image shown in Figure 1, the method for fusion positron emission computerized tomography image of the present invention and magnetic resonance imaging image is described in detail.
When the patient being done inspection, the patient can do MRI scanning earlier, and the patient bed bed of operating equipment control body moves; Get into the inspection area of MRI, the patient bed bed of operating equipment control rotation body makes patient bed centrage parallel with the centrage in patient MRI hole; Adjust the height of patient bed bed body or bed board; Make the patient bed board can be over against patient MRI hole, parallel the moving of the bed board of operating equipment control be afterwards sent the patient into patient MRI hole, carries out MRI scanning.After the MRI end of scan, operating equipment control bed board is regained the patient from patient MRI hole after, the patient bed bed of operating equipment control body moves; Get into the inspection area of PET, rotate patient bed bed body, make patient bed centrage parallel with the centrage in patient PET hole; Adjust the height of patient bed bed body or bed board; Make the patient bed board can be over against patient PET hole, parallel the moving of the bed board of operating equipment control be afterwards sent the patient into patient PET hole, carries out PET scanning.
Because patient bed bed body can 0～180 ° of rotation, so operating equipment control patient can get into the patient hole of two equipment in the same way, such as all being an advanced patient hole or all being the advanced patient of foot hole.
When the end of scan, operating equipment carried out PET and MRI image co-registration, owing to use same examinating couch, PET image and MRI image had the position relation between the tomograph, can realize the same machine image co-registration of PET image and MRI image.
The fusion positron emission computerized tomography image of the embodiment of the invention and the system and method for magnetic resonance imaging image; Patient's centerline hole of MR scanner and patient's centerline hole of positron emission computerized tomography device are at the same space; Rotatable patient bed can between two equipment, moving when patient checks, can be done magnetic resonance imaging earlier like this; Then through the rotatable patient bed inspection area of sending into patient the positron emission computerized tomography device; Carry out positron emission computerized tomography, when the end of scan carries out positron emission computerized tomography image and magnetic resonance imaging image co-registration, owing to use same examinating couch; Positron emission computerized tomography image and magnetic resonance imaging image have the position relation between the tomograph; Can realize the same machine image co-registration of positron emission computerized tomography image and magnetic resonance imaging image, the fusion process simple and fast has reduced the cost of image co-registration.
The above is a preferred implementation of the present invention; Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from principle according to the invention; Can also make some improvement and retouching, these improvement and retouching also should be regarded as protection scope of the present invention.
Claims (10)
1. a system that merges positron emission computerized tomography image and magnetic resonance imaging image is characterized in that, comprising:
Be used to generate the MR scanner of magnetic resonance imaging image;
Be used to generate the positron emission computerized tomography device of positron emission computerized tomography image, and patient's centerline hole of said positron emission computerized tomography device becomes the Φ angle with patient's centerline hole of said MR scanner, wherein, Φ is not more than 180 ° greater than 0 °;
Place between said positron emission computerized tomography device and the said MR scanner, rotatable movably patient bed;
Be used to control the imaging of said positron emission computerized tomography device and said MR scanner; Store, show and utilize the position relation between the tomograph to merge magnetic resonance imaging image and positron emission computerized tomography image; And control said patient bed rotation and mobile operating equipment, patient bedly be connected respectively with said with said positron emission computerized tomography device, said MR scanner.
2. the system of fusion positron emission computerized tomography image according to claim 1 and magnetic resonance imaging image is characterized in that, said patient bed comprising:
Removable patient bed bed body that can 0 °～180 ° of rotations;
With said patient bed bed body is support, but on said patient bed bed body the bed board of rectilinear translation.
3. the system of fusion positron emission computerized tomography image according to claim 2 and magnetic resonance imaging image is characterized in that, the said patient bed adjusting device that also comprises the height that is used to regulate said patient bed bed body and said bed board.
4. the system of fusion positron emission computerized tomography image according to claim 1 and magnetic resonance imaging image is characterized in that,
Said positron emission computerized tomography device is beyond 1 gaussian line of said MR scanner.
5. according to the system of claim 1 or 4 described fusion positron emission computerized tomography images and magnetic resonance imaging image, it is characterized in that the distance between said positron emission computerized tomography device and the said MR scanner is a 3-7 rice.
6. the system of fusion positron emission computerized tomography image according to claim 1 and magnetic resonance imaging image is characterized in that the shell of said positron emission computerized tomography device is pasted with the radio shielding material.
7. the system of fusion positron emission computerized tomography image according to claim 1 and magnetic resonance imaging image is characterized in that the shell of said MR scanner is pasted with the radio shielding material.
8. according to the system of claim 6 or 7 described fusion positron emission computerized tomography images and magnetic resonance imaging image, it is characterized in that said radio shielding material is a copper.
9. method that merges positron emission computerized tomography image and magnetic resonance imaging image; Be applied to merge in the system of positron emission computerized tomography image and magnetic resonance imaging image; Said system comprises MR scanner, positron emission computerized tomography device, patient bed and operating equipment, and wherein, patient's centerline hole of said positron emission computerized tomography device becomes the Φ angle with patient's centerline hole of said MR scanner; Said patient bed between said positron emission computerized tomography device and said MR scanner; And rotatable removable, it is characterized in that said method comprises:
Said operating equipment is controlled the said patient bed patient hole that moves into said MR scanner, and said patient on patient bed is carried out magnetic resonance imaging, and the magnetic resonance imaging image that obtains of storage;
Said operating equipment is controlled the said patient bed patient hole that moves into said positron emission computerized tomography device, and said patient on patient bed is carried out positron emission computerized tomography, and the positron emission computerized tomography image that obtains of storage;
Said operating equipment utilizes the position relation between the tomograph, and said magnetic resonance imaging image and said positron emission computerized tomography image are carried out image co-registration.
10. the method for fusion positron emission computerized tomography image according to claim 9 and magnetic resonance imaging image; It is characterized in that; But but saidly patient bedly also comprising removable can 0 °～180 ° of rotations and patient bed bed body height up and down height up and down and but the bed board and being used to of rectilinear translation is regulated the height of said patient bed bed body and said bed board on said patient bed bed body adjusting device, said operating equipment is controlled the said patient bed patient hole that moves into said MR scanner and is comprised:
Said operating equipment is controlled said patient bed bed body and is moved; Get into the inspection area of said MR scanner; The said patient bed bed body of said operating equipment control rotation; Make said patient bed centrage parallel with patient's centerline hole of said MR scanner; Adjust the height of said patient bed bed body or bed board, make the said patient bed board can be over against the patient hole of said MR scanner, said afterwards operating equipment be controlled the parallel patient hole of the patient being sent into said MR scanner of moving of said bed board;
Said operating equipment is controlled the said patient bed patient hole that moves into said positron emission computerized tomography device and is comprised:
Said operating equipment is controlled said patient bed bed body and is moved; Get into the inspection area of said positron emission computerized tomography device; The said patient bed bed body of said operating equipment control rotation; Make said patient bed centrage parallel with patient's centerline hole of said positron emission computerized tomography device; Adjust the height of said patient bed bed body or bed board, make the said patient bed board can be over against the patient hole of said positron emission computerized tomography device, said afterwards operating equipment be controlled the parallel patient hole of the patient being sent into said positron emission computerized tomography device of moving of said bed board.
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Application publication date: 20120926 |