CN102688054A - A system and a method for fusing a positron emission computed tomography image and a magnetic resonance imaging image - Google Patents
A system and a method for fusing a positron emission computed tomography image and a magnetic resonance imaging image Download PDFInfo
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- CN102688054A CN102688054A CN201110069657XA CN201110069657A CN102688054A CN 102688054 A CN102688054 A CN 102688054A CN 201110069657X A CN201110069657X A CN 201110069657XA CN 201110069657 A CN201110069657 A CN 201110069657A CN 102688054 A CN102688054 A CN 102688054A
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Abstract
The invention provides system and a method for fusing a positron emission computed tomography image and a magnetic resonance imaging image, and belongs to the field of medical apparatuses. The system comprises a magnetic resonance scanner for generating a magnetic resonance imaging image; a positron emission computed tomography scanner for generating a positron emission computed tomography image; a patient inspection bed placed between the positron emission computed tomography scanner and the magnetic resonance scanner, and is capable of linear translation; and operation equipment used for controlling the imaging of the positron emission computed tomography scanner and the magnetic resonance scanner, and storing, displaying and fusing the magnetic resonance imaging image and the positron emission computed tomography image through utilizing positions between the tomography graphs, and for controlling the linear translation of the patient inspection bed. The operation equipment is respectively connected with the positron emission computed tomography scanner, the magnetic resonance scanner, and the patient inspection bed. The system and the method for fusing the positron emission computed tomography image and the magnetic resonance imaging image can realize fusion of the positron emission computed tomography image and the magnetic resonance imaging image via one 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, patient's centerline hole of said positron emission computerized tomography device is parallel with patient's centerline hole of said MR scanner and on same vertical plane;
Place between said positron emission computerized tomography device and the said MR scanner, but rectilinear translation is patient bed, and said patient bed centrage is parallel with patient's centerline hole of said MR scanner and on same vertical plane;
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 the operating equipment of controlling said patient bed rectilinear translation, patient bedly be connected respectively with said with said positron emission computerized tomography device, said MR scanner.
Wherein, said patient bed comprising:
But the patient bed bed body of rectilinear translation;
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 embodiment of the 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 MR scanner, patient's centerline hole of said positron emission computerized tomography device and said patient bed centrage are parallel to each other and on same vertical plane; Said patient bed between said positron emission computerized tomography device and said MR scanner, but and rectilinear translation, said method comprises:
Said operating equipment is controlled the patient hole that said patient bed linearity 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 patient hole that said patient bed linearity 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 the patient bed bed body height up and down of 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 patient hole that said patient bed linearity moves into said MR scanner and is comprised:
Said operating equipment is controlled the inspection area that said patient bed body straight line moves into said MR scanner; Control said adjusting device and adjust the height of said patient bed bed body or said 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 patient hole that said patient bed linearity moves into said positron emission computerized tomography device and is comprised:
Said operating equipment is controlled the inspection area that said patient bed body straight line moves into said positron emission computerized tomography device; Control said adjusting device and adjust the height of said patient bed bed body or said 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 is parallel with patient's centerline hole of positron emission computerized tomography device and at same vertical plane, patient bed can be between two equipment linear translation; Like this when patient checks; Can do magnetic resonance imaging earlier, send into patient the inspection area of positron emission computerized tomography device then, 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, patient's centerline hole of positron emission computerized tomography device 2 is parallel with patient's centerline hole of MR scanner 1 and on same vertical plane;
Place between positron emission computerized tomography device 2 and the MR scanner 1, but rectilinear translation is patient bed 3, and patient bed 3 centrage is parallel with patient's centerline hole of MR scanner 1 and on same vertical plane;
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 of controlling patient bed 3 rectilinear translations, be connected respectively with patient bed 3 with positron emission computerized tomography device 2, MR scanner 1.
Wherein, patient bed 3 comprise:
But the patient bed bed body of rectilinear translation and be support with patient bed bed body, but on patient bed bed body the bed board of rectilinear translation.But patient bed bed body and bed board be height up and down all; Patient bed 3 also comprise the adjusting device of the height that is used to regulate patient bed bed body and bed board.
As shown in Figure 1, patient's PET centerline hole is parallel with patient's MRI centerline hole and at same vertical plane, and patient bed 3 can be between two equipment, and parallel patient's centerline hole moves.
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.But because the equal rectilinear translation of patient bed bed body and bed board; So can satisfy distance between MRI equipment and PET equipment when enough far away, 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 it is parallel mobile that operating equipment is controlled patient bed body, gets into the inspection area of MRI; 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, it is parallel mobile that operating equipment is controlled patient bed body, gets into the inspection area of PET; 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 PET hole, carries out PET scanning.
The end of scan, operating equipment are when carrying out PET and MRI image co-registration, owing to use same examinating couch, PET image and MRI image have 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 is parallel with patient's centerline hole of positron emission computerized tomography device and at same vertical plane; Patient bed can be between two equipment linear translation, when patient checks, can do magnetic resonance imaging earlier like this; Send into patient the inspection area of positron emission computerized tomography device then; 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, patient's centerline hole of said positron emission computerized tomography device is parallel with patient's centerline hole of said MR scanner and on same vertical plane;
Place between said positron emission computerized tomography device and the said MR scanner, but rectilinear translation is patient bed, and said patient bed centrage is parallel with patient's centerline hole of said MR scanner and on same vertical plane;
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 the operating equipment of controlling said patient bed rectilinear translation, 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:
But the patient bed bed body of rectilinear translation;
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; Wherein, Patient's centerline hole of said MR scanner, patient's centerline hole of said positron emission computerized tomography device and said patient bed centrage are parallel to each other and on same vertical plane, and be said patient bed between said positron emission computerized tomography device and said MR scanner, but and rectilinear translation; It is characterized in that said method comprises:
Said operating equipment is controlled the patient hole that said patient bed linearity 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 patient hole that said patient bed linearity 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 but saidly patient bedly also comprising the patient bed bed body height up and down of rectilinear translation and 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 patient hole that said patient bed linearity moves into said MR scanner and is comprised:
Said operating equipment is controlled the inspection area that said patient bed body straight line moves into said MR scanner; Control said adjusting device and adjust the height of said patient bed bed body or said 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 patient hole that said patient bed linearity moves into said positron emission computerized tomography device and is comprised:
Said operating equipment is controlled the inspection area that said patient bed body straight line moves into said positron emission computerized tomography device; Control said adjusting device and adjust the height of said patient bed bed body or said 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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- 2011-03-22 CN CN201110069657XA patent/CN102688054A/en active Pending
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Application publication date: 20120926 |