CN201790820U - Positron emission tomography device with application adaptability - Google Patents
Positron emission tomography device with application adaptability Download PDFInfo
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- CN201790820U CN201790820U CN2010202258138U CN201020225813U CN201790820U CN 201790820 U CN201790820 U CN 201790820U CN 2010202258138 U CN2010202258138 U CN 2010202258138U CN 201020225813 U CN201020225813 U CN 201020225813U CN 201790820 U CN201790820 U CN 201790820U
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Abstract
The utility model discloses a positron emission tomography device with application adaptability, which comprises a detector module, a detector control module, an image reconstruction module and a detector planning module. In a first mode, the output end of the detector module is connected with the detector control module, the output end of the detector control module is connected with the detector module and the image reconstruction module respectively, the output end of the image reconstruction module is connected with the detector planning module, and the output end of the detector planning module is connected with the detector control module; a second mode is different from the first mode, namely the output end of the detector module is also connected with the image reconstruction module; and a third mode is different from the first mode, namely the output end of the detector module is only connected with the image reconstruction module, and the output end of the detector control module is only connected with the detector module. The tomography device realizes high system performance with low system cost, saves system construction cost, and acquires high-quality images in the interesting area of a detected object.
Description
Technical field
This utility model relates to a kind of positron emission tomography device of application adaptability, belongs to positron emission tomography (Positron Emission Tomography is hereinafter to be referred as PET) field.
Background technology
Positron emission tomography (Positron Emission Tomography, hereinafter to be referred as PET) be a kind of angiographic method of Noninvasive, can noinvasive, quantitatively, dynamically assess metaboilic level, biochemical reaction, functional activity and the perfusion of various organs in the human body, can carry out early diagnosis and analysis to tumor, cardiac system disease and nervous system disease, in the prevention of major disease and treatment, have unique using value.The PET imaging need have radioisotopic medicine to detected human body, animal or organism injection of labelled.These radiosiotope run into electron annihilation and produce a pair of γ photon in the tissue of detected object.The detector of detected object periphery receives the γ photon and is translated into the signal of telecommunication.These signals of telecommunication obtain the activity distributed image of detected object at last through a series of processing by image rebuilding method.[Miles?N.Wernick，John?N.Aarsvold，Emission?Tomography：The?Fundamentals?of?PET?and?SPECT，Elsevier?Academic?Press，2004]
The PET imager mainly comprises detector module, electronics module, image reconstruction module.Wherein, detector module receives and the depositing gamma photon, and is converted into the signal of telecommunication; The electronics resume module is also transmitted these signals of telecommunication; Image reconstruction module is handled the signal that system obtained, and obtains the activity distributed image of detected object.After the PET system building finished, detector module maintained static in testing process, or was rotated [Michael E.Phelps, PET Physics, Instrumentation, and Scanners, Springer, 2006] with fixed model around fixed center.And, treat same detected object, generally carry out one-time detection, or carry out repeatedly uncorrelated detection, do not adjust the layout and the performance of detector module according to the characteristics of concrete detected object.
At present, small animal position emission tomography (PET) has obtained to compare PET at human body (hereinafter to be referred as " human body PET " at aspects such as spatial resolution, temporal resolution, energy resolution, sensitivity, counting rates, if no specified otherwise, " PET " also refers to " human body PET ") higher performance.Its main cause is, because the volume effect influence, small animal position emission tomography (PET) need be researched and developed the more detector module design of dominance energy if will obtain the equal imaging performance with human body PET.If human body PET adopts the detector module design of small animal position emission tomography (PET), then the radius of the scintillation crystal cost of human body PET and small animal position emission tomography (PET) system and both gauging rings is square proportional.Get visible range (the Field of View of human body PET at vertical axial, hereinafter to be referred as FOV) be that 60cm, small animal position emission tomography (PET) are that 12cm, human body PET are identical with the axial FOV of small animal position emission tomography (PET) at the FOV of vertical axial, then, the cost of the scintillation crystal of human body PET is 25 times of small animal position emission tomography (PET) at least.
With this performance of spatial resolution is the example diversity of human body PET and small animal position emission tomography (PET) as an illustration.Spatial resolution is one of most important performance in the PET imager.Spatial resolution is high more, means to detect littler focus, and often size is less and the disease of early-stage cancer is sent out kitchen range, thereby the PET instrument of high spatial resolution can improve the early-stage cancer verification and measurement ratio.In the past, many researcheres are devoted to improve the spatial resolution of PET system always.The spatial resolution of PET imager mainly is subjected to restriction [Craig S Levin such as detector inherent spatial resolution, positive subrange, γ photon non-colinear, Edward J Hoffman, " Calculationof positron range and its effect on the fundamental limit of positron emissiontomography system spatial resolution; " Physics in Medicine and Biology, vol.44, pp.781-799,1999].At present, the spatial resolution of human body PET imager is about 2mm～10mm halfwidth (Full Width at Half Maximum, hereinafter to be referred as FWHM), the FOV of vertical axial is about 50～70cm, its scintillation crystal tangentially generally is being about wide [the F Lamare of 4mm～8mm, A Turzo, YBizais, C Cheze Le Rest, D Visvikis, " Validation ofa Monte Carlo simulation ofthePhilips Allegro/GEMINI PET systems using GATE; " Physics in Medicine andBiology, vol.51, pp.943-962,2006] [Brad J.Kemp, Chang Kim, John J.Williams, Alexander Ganin, Val J.Lowe, " NEMA NU 2-2001performance measurements ofan LYSO-based PET/CT system in 2D and 3D acquisition modes, " Journal ofNuclear Medicine, vol.47, pp.1960-1967,2006]; The spatial resolution that is used for the PET imager of toy is about 1mm～2mm FWHM, the FOV of vertical axial is about 10cm～15mm, its scintillation crystal tangentially generally is being about wide [the Laforest Richard of 1mm～2mm, Longford Desmond, SiegelStefan, Newport Danny F., Yap Jeffrey, " Performance evaluation of themicroPET-Focus-F 120, " in IEEE 2004Nuclear Science Symposium ConferenceRecord, vol.5, pp.2965-2969,2004] [Cristian C Constantinescu, JogeshwarMukherjee, " Performance evaluation of an Inveon PET preclinical scanner; " Physics in Medicine and Biology, vol.54, pp.2885-2899,2009].In order to obtain the spatial resolution the same or higher with the small animal position emission tomography (PET) imager, and keep the PET imager of big FOV, then need to adopt a large amount of crystal that cuts carefullyyer, it increases radius square proportional of multiple and both gauging rings.Along with the increase of amount of crystals, will cause need be more, photomultiplier transit device and a large amount of rear end electronics passages faster, thereby cause the cost of whole PET system sharply to increase.
Summary of the invention
The purpose of this utility model is to provide a kind of positron emission tomography device of application adaptability, this imaging device does not increase system cost, the only change by formation method, just systematic function is increased several times to tens times, obtain high quality graphic at the area-of-interest of detected object.
The positron emission tomography device of a kind of application adaptability that this utility model provides comprises detector module, probe control module, image reconstruction module and detector planning module; The outfan of detector module links to each other with probe control module, the outfan of probe control module links to each other with image reconstruction module with detector module respectively, the outfan of image reconstruction module links to each other with the detector planning module, and the outfan of detector planning module links to each other with probe control module;
Concrete: detector module is used for receiving and the depositing gamma photon, comprises a plurality of independently detector modules, and each detector module has independently electronic system; And the information of detector module is passed to probe control module; The information of described detector module comprises the event information that performance, layout, imaging parameters, the detection of detector module obtain; Probe control module is used for performance, layout and the imaging parameters control detector module according to the detector module of the planning that receives from the detector planning module, and the information of transmission detector module is to image reconstruction module; Image reconstruction module is used for the detector module information of obtaining from probe control module is handled; The detector planning module is used to plan performance, layout and the imaging parameters of detector module, and the result that will plan is passed to probe control module.
Second kind of frame mode of the positron emission tomography device of a kind of application adaptability that this utility model provides comprises detector module, probe control module, image reconstruction module and detector planning module; The outfan of detector module links to each other with probe control module, image reconstruction module respectively, the outfan of probe control module links to each other with image reconstruction module with detector module respectively, the outfan of image reconstruction module links to each other with the detector planning module, and the outfan of detector planning module links to each other with probe control module;
Concrete: detector module is used for receiving and the depositing gamma photon, comprises a plurality of independently detector modules, and each detector module has independently electronic system; And performance, layout and the imaging parameters of detector module be passed to probe control module, be passed to image reconstruction module with surveying the event information that obtains; Probe control module is used for performance, layout and the imaging parameters control detector module according to the detector module of the planning that receives from the detector planning module, and performance, layout and the imaging parameters of transmission detector module are to image reconstruction module; Image reconstruction module is used for the event information that the performance of the detector module that obtains from detector module and probe control module, layout, imaging parameters and detection obtain is handled; The detector planning module is used to plan performance, layout and the imaging parameters of detector module, and the result that will plan is passed to probe control module.
The third frame mode of the positron emission tomography device of a kind of application adaptability that this utility model provides comprises detector module, probe control module, image reconstruction module and detector planning module; The outfan of detector module links to each other with image reconstruction module, the outfan of probe control module links to each other with detector module, the outfan of image reconstruction module links to each other with the detector planning module, and the outfan of detector planning module links to each other with probe control module;
Concrete: detector module is used for receiving and the depositing gamma photon, comprises a plurality of independently detector modules, and each detector module has independently electronic system; And the information of detector module is passed to image reconstruction module; The information of described detector module comprises the event information that performance, layout, imaging parameters, the detection of detector module obtain; Probe control module is used for performance, layout and the imaging parameters control detector module according to the detector module of the planning that receives from the detector planning module, and performance, layout and the imaging parameters of transmission detector module are to detector module; Image reconstruction module is used for the detector module information of obtaining from detector module is handled; The detector planning module is used to plan performance, layout and the imaging parameters of detector module.
Advantage of the present utility model is: the detection system of forming by the high-performance detector module that utilizes some, obtain the picture quality that maybe can compare with the systems compliant that adopts high performance detector module fully at the area-of-interest of detected object, save the system building cost.
Description of drawings
Fig. 1 is the workflow diagram of the positron emission tomography (PET) method of this utility model application adaptability;
Fig. 2 is the structural representation of the positron emission tomography device of this utility model application adaptability;
Fig. 3 is the mimic detected object of this utility model;
Fig. 4 is the layout of the system detector module of this utility model example.
Among the figure: 1, detector module; 2, probe control module; 3, image reconstruction module; 4, detector planning module.
The specific embodiment
The utility model is described in further detail below in conjunction with accompanying drawing and example.
As shown in Figure 1, the positron emission tomography (PET) method of this utility model application adaptability is:
(1) scanning just, the preliminary activity information of acquisition detected object;
Construction features, imaging characteristics and imaging performance demand according to detected object, performance and physical dimension based on detector module in the imaging system, the planning detector module is to surround detected object around the mode layout, can adopt the gauging ring of geometry, as circle, ellipse etc. with rule; Perhaps adopt the convex set shape of non-rule; Perhaps, adopt the gauging ring of the geometry of similar detected object, adopt class mammary gland shape as at galactophore scanning the time according to the construction features of detected object.Each detector module on the gauging ring of encirclement detected object can have different performances and imaging parameters.
Can pass through CT when obtaining the activity information of detected object, or excellent source, or collection of illustrative plates carries out correction for attenuation.[Paul?E.Kinahan，Bruce?H.Hasegawa，Thomas?Beyer，“X-ray-based?attenuationcorrection?for?positron?emission?tomography/computed?tomography?scanners，”Seminars?in?Nuclear?Medicine，vol.33，pp.166-179，2003]
During image reconstruction, method for reconstructing parsing or iteration be can adopt, FBP (Filtered BackProjection), MLEM (Maximum Likelihood Expectation Maximization), OSEM (Ordered Subset Expectation Maximum), MAP methods such as (Maximum a Posteriori) comprised.[Andrew?J.Reader，Habib?Zaidi，“Advances?in?PET?Image?Reconstruction，”Clin.，pp.173-190，2007]
(2) the first scanning result that obtains according to step (1), performance, layout and the imaging parameters of planning detector module, and adjust detector module, obtain new system structure, and new system structure is proofreaied and correct fast; Its specific implementation step is:
(2.1), extract the position and the size of area-of-interest according to the activity information that just scans the detected object that obtains.Can adopt artificial, semi-automatic or full automatic method to extract the position and the size of area-of-interest.
[Dewalle-Vignion?AS，EI?Abiad?A，Betrouni?N，Hossein-Foucher?C，Huglo?D，Vermandel?M，“Thresholding?methods?for?PET?imaging：A?review，”MedicineNucleaire，vol.34，no.2，pp.119-131，2010]
(2.2) according to the position and the size of area-of-interest,, reach the imaging performance demand, performance, layout and the imaging parameters of planning detector module in conjunction with the characteristic of detected object.The performance of detector module comprises inherent spatial resolution, temporal resolution, energy resolution, sensitivity and counting rate; Imaging parameters comprises parameter detector, electronics parameter and image reconstruction parameter.Each detector module on the gauging ring of encirclement detected object can have different performances and imaging parameters.
During programming and distribution, according to the construction features of the position of area-of-interest and size, detected object and imaging characteristics, imaging performance demand, performance and physical dimension based on detector module in the imaging system, the planning detector module is to surround detected object around the mode layout, can adopt the gauging ring of geometry, as circular, oval with rule; Also can adopt the convex set shape of non-rule; Also can adopt the gauging ring of the geometry of similar detected object, adopt class mammary gland shape as at galactophore scanning the time according to the construction features of detected object.
(i) layout of detector module
Detector module can be formed a gauging ring and surround detected object on cross-sectional view, can carry out composite configuration with plate mode.The test surface that plate mode refers to have two or more detector modules at grade, and certain bar limit of the test surface of adjacent two detector modules overlaps.Its layout type can have following several:
(2.2.1) detector module equally spaced distributes on gauging ring.The size of gauging ring can be adjusted according to the position and the size of detected object, detection position and area-of-interest.
(2.2.2) detector module is distributed on the gauging ring in the accumulative mode of part, and single or multiple accumulative detector modules can be arranged.
(2.2.2.1) single accumulative detector module distributes and can carry out layout as follows:
1. all detector modules accumulate in the position near area-of-interest.
2. the segment detector module accumulates in the position near area-of-interest, and the remainder detector module can equally spaced be distributed on the residue gauging ring.
(2.2.2.2) a plurality of accumulative detector modules can adopt multiple symmetrical manner to be distributed on the gauging ring, wherein, detector module number between the symmetric accumulative detector module can be different, during symmetry, with the center of accumulative detector module on the transverse section as the reference point.Symmetric mode comprises:
1. about a certain centrosymmetry.
2. about a certain straight line symmetry of passing certain center.Its axis of symmetry can for:
(a) certain accumulative or the reference point of non-accumulative detector module and straight line that this center is formed;
(b) straight line of certain two centers composition.
Wherein, this center is the center of gauging ring, perhaps the center of area-of-interest, the perhaps center of a certain regional area in the area-of-interest, the perhaps center of detected object.This center can be geometric center or center of gravity.
3. accumulative about two, or two non-accumulative, or a line symmetry of assembling the reference point of a non-accumulative detector module.
(ii) parameter detector.Comprise detecting module supply voltage, position spectrum correction parameter, normalization correction parameter, gain of photomultiplier correction parameter etc.
(iii) electronics parameter.Comprise voltage threshold, time window, energy window, coincidence correction parameter, baseline correction parameter, global clock correction parameter etc.
(iv) image reconstruction parameter.Comprise system response matrix, event information screening criterion etc.
(2.3) result according to planning adjusts detector module, obtains new system structure;
(2.4) new system structure is proofreaied and correct (do not distinguish calibration and alignment in this utility model, unification is called " correction ") fast.From compensation and the optimization that the aspect of image and system is carried out, comprise normalization correction, coincidence correction, coincidence correction, scatter correction etc. at random; From compensation and the optimization that the aspect of detector and electronics is carried out, comprise gain of photomultiplier calibration, position correction, energy calibration, time calibration, baseline drift calibration, global clock calibration etc.
(3) under new system structure, scan, obtain the activity information of detected object;
The activity information of the first scanning of can applying step (1) when obtaining the activity information of detected object obtaining is as prior information, before using once or the activity information of obtaining during certain primary system structure as prior information, or the activity information of obtaining when using repeatedly system structure simultaneously is as prior information, utilizes this prior information to carry out image reconstruction under the new layout then.
Attenuation correction method and image rebuilding method are referring to step (1).
(4) the activity information of the detected object of analytical procedure (3) acquisition if its quality can satisfy application demand, then, finishes scanning; Otherwise, plan performance, layout and the imaging parameters of detector module again, and adjust detector module, and proofread and correct repeating step (3)-(4) fast.
When planning the detector module parameter again, the first scanning result that can utilize step (1) to obtain, the scanning result that also can utilize one or many step (3) to obtain, the scanning result that also can utilize step (1) and one or many step (3) to obtain simultaneously.
The mass parameter of analyzing comprise spatial resolution, sensitivity, signal to noise ratio, contrast etc. and (or) criterion that defines voluntarily of user.[National?Electrical?Manufacturers?Association，NEMAStandards?Publication?NU?2-2007，Performance?Measurements?of?Small?AnimalPositron?Emission?Tomographs，2007]
Planing method, adjustment detector module parameter and quick the correction referring to step (2).
As shown in Figure 2, the positron emission tomography device of this utility model application adaptability comprises detector module 1, probe control module 2, image reconstruction module 3 and detector planning module 4 four parts.Have three kinds of frame modes:
First kind of frame mode, shown in Fig. 2 (a): the outfan of detector module 1 links to each other with probe control module 2, the outfan of probe control module 2 links to each other with image reconstruction module 3 with detector module 1 respectively, the outfan of image reconstruction module 3 links to each other with detector planning module 4, and the outfan of detector planning module 4 links to each other with probe control module 2;
(1) detector module 1 is used for receiving and the depositing gamma photon, comprises a plurality of independently detector modules, and each detector module has independently electronic system, has the multifreedom motion ability; And the information of detector module is passed to probe control module 2; The information of described detector module comprises the event information that performance, layout, imaging parameters, the detection of detector module obtain;
(2) probe control module 2 is used for performance, layout and the imaging parameters control detector module according to the detector module of the planning that receives from detector planning module 4, and the information of transmission detector module is to image reconstruction module 3;
(3) image reconstruction module 3 is used for the detector module information of obtaining from probe control module 2 is handled, and obtains the activity information of detected object;
(4) detector planning module 4 is used to plan performance, layout and the imaging parameters of detector module, and the result that will plan is passed to probe control module 2.
Second kind of frame mode, shown in Fig. 2 (b): the outfan of detector module 1 links to each other with probe control module 2, image reconstruction module 3 respectively, the outfan of probe control module 2 links to each other with image reconstruction module 3 with detector module 1 respectively, the outfan of image reconstruction module 3 links to each other with detector planning module 4, and the outfan of detector planning module 4 links to each other with probe control module 2;
(1) detector module 1 is used for receiving and the depositing gamma photon, comprises a plurality of independently detector modules, and each detector module has independently electronic system, has the multifreedom motion ability; And performance, layout and the imaging parameters of detector module be passed to probe control module 2, be passed to image reconstruction module 3 with surveying the event information that obtains;
(2) probe control module 2 is used for performance, layout and the imaging parameters control detector module according to the detector module of the planning that receives from detector planning module 4, and performance, layout and the imaging parameters of transmission detector module are to image reconstruction module 3;
(3) image reconstruction module 3 is used for the event information that performance, layout, imaging parameters and detection to the detector module that obtains from detector module 1 and probe control module 4 obtain and handles, and obtains the activity information of detected object;
(4) detector planning module 4 is used to plan performance, layout and the imaging parameters of detector module, and the result that will plan is passed to probe control module 2.
The third frame mode, shown in Fig. 2 (c): the outfan of detector module 1 links to each other with image reconstruction module 3, the outfan of probe control module 2 links to each other with detector module 1, the outfan of image reconstruction module 3 links to each other with detector planning module 4, and the outfan of detector planning module 4 links to each other with probe control module 2;
(1) detector module 1 is used for receiving and the depositing gamma photon, comprises a plurality of independently detector modules, and each detector module has independently electronic system, has the multifreedom motion ability; And the information of detector module is passed to image reconstruction module 3; The information of described detector module comprises the event information that performance, layout, imaging parameters, the detection of detector module obtain;
(2) probe control module 2 is used for performance, layout and the imaging parameters control detector module according to the detector module of the planning that receives from detector planning module 4, and performance, layout and the imaging parameters of transmission detector module are to detector module 1;
(3) image reconstruction module 3 is used for the detector module information of obtaining from detector module 1 is handled, and obtains the activity information of detected object;
(4) detector planning module 4 is used to plan performance, layout and the imaging parameters of detector module, and the result that will plan is passed to probe control module 2.
Example:
Be that example is described further enforcement of the present utility model with as shown in Figure 3 mimic detected object below.Among Fig. 3, white portion is represented area-of-interest, and gray area is represented area-of-interest place organ-/ tissue slightly, other organ-/ tissue on the most black Regional Representative's detected object transverse section.
The layout of system detector module when being illustrated in figure 4 as analog detection object imaging shown in Figure 3.
In the step (1), when just scanning, the layout that adopts the detector module shown in Fig. 4 (a) to be spacedly distributed on the regular circular gauging ring detects.
Fig. 4 (b)-(g) is the system structure of the different layouts of detector planning module planning, is respectively: (b) change the detection system radius, detector module is spacedly distributed on circular gauging ring; (c) change the detection system radius, detector module does not have the compartment of terrain and is distributed on the circular gauging ring; (d) detector module all accumulates in the position near area-of-interest; (e) the segment detector module accumulates in the position near area-of-interest, and other detector module equally spaced is distributed on the circular gauging ring; (f) the segment detector intermodule is the symmetry placement about the circular gauging ring center of circle, 3 accumulative modules of 5 the accumulative modules in the left side and the right are symmetrical relations about the circular gauging ring center of circle among the figure, above two near detector module and following two near detector module about the line symmetry of 5 accumulative modules in the left side and area-of-interest, also about the reference point line symmetry of 5 accumulative modules in the left side and 3 the accumulative modules in the right; (g) the segment detector intermodule is the symmetry placement about the circular gauging ring center of circle, and 3 accumulative modules of 5 the accumulative modules in the left side and the right are symmetrical relations about the circular gauging ring center of circle among the figure, and other detector module equally spaced is distributed on the circular gauging ring.
Can also adopt plate mode at each detector module shown in this instance graph, and each detector module can also different size.Gauging ring can also adopt the gauging ring of Else Rule shape, perhaps adopts the gauging ring of the convex set shape of non-rule, perhaps adopts the gauging ring of the geometry of class detected object.
The above is an exemplary case of the present utility model, does not represent the program results of actual detector planning module, and this utility model also is not limited to this example and the disclosed content of accompanying drawing.So, everyly do not break away from the equivalence of finishing under the spirit disclosed in the utility model or revise, all fall into the scope of this utility model protection.
Claims (3)
1. the positron emission tomography device of an application adaptability, it is characterized in that: described imaging device comprises detector module (1), probe control module (2), image reconstruction module (3) and detector planning module (4):
The outfan of described detector module (1) links to each other with probe control module (2), the outfan of described probe control module (2) links to each other with image reconstruction module (3) with detector module (1) respectively, the outfan of described image reconstruction module (3) links to each other with detector planning module (4), and the outfan of described detector planning module (4) links to each other with probe control module (2);
Described detector module (1) is used for receiving and the depositing gamma photon, comprises a plurality of independently detector modules, and described each detector module has independently electronic system; And the information of detector module is passed to probe control module (2); The information of described detector module comprises the event information that performance, layout, imaging parameters, the detection of detector module obtain;
Described probe control module (2) is used for performance, layout and the imaging parameters control detector module according to the detector module of the planning that receives from detector planning module (4), and the information of transmission detector module is to image reconstruction module (3);
Described image reconstruction module (3) is used for the detector module information of obtaining from probe control module (2) is handled;
Described detector planning module (4) is used to plan performance, layout and the imaging parameters of detector module, and the result that will plan is passed to probe control module (2).
2. the positron emission tomography device of an application adaptability, it is characterized in that: described imaging device comprises detector module (1), probe control module (2), image reconstruction module (3) and detector planning module (4):
The outfan of described detector module (1) links to each other with probe control module (2), image reconstruction module (3) respectively, the outfan of described probe control module (2) links to each other with image reconstruction module (3) with detector module (1) respectively, the outfan of described image reconstruction module (3) links to each other with detector planning module (4), and the outfan of described detector planning module (4) links to each other with probe control module (2);
Described detector module (1) is used for receiving and the depositing gamma photon, comprises a plurality of independently detector modules, and described each detector module has independently electronic system; And performance, layout and the imaging parameters of detector module be passed to probe control module (2), be passed to image reconstruction module (3) with surveying the event information that obtains;
Described probe control module (2) is used for performance, layout and the imaging parameters control detector module according to the detector module of the planning that receives from detector planning module (4), and performance, layout and the imaging parameters of transmission detector module are to image reconstruction module (3);
Described image reconstruction module (3) is used for the event information that the performance of the detector module that obtains from detector module (1) and probe control module (2), layout, imaging parameters and detection obtain is handled;
Described detector planning module (4) is used to plan performance, layout and the imaging parameters of detector module, and the result that will plan is passed to probe control module (2).
3. the positron emission tomography device of an application adaptability, it is characterized in that: described imaging device comprises detector module (1), probe control module (2), image reconstruction module (3) and detector planning module (4):
The outfan of described detector module (1) links to each other with image reconstruction module (3), the outfan of described probe control module (2) links to each other with detector module (1), the outfan of described image reconstruction module (3) links to each other with detector planning module (4), and the outfan of described detector planning module (4) links to each other with probe control module (2);
Described detector module (1) is used for receiving and the depositing gamma photon, comprises a plurality of independently detector modules, and described each detector module has independently electronic system; And the information of detector module is passed to image reconstruction module (3); The information of described detector module comprises the event information that performance, layout, imaging parameters, the detection of detector module obtain;
Described probe control module (2) is used for performance, layout and the imaging parameters control detector module according to the detector module of the planning that receives from detector planning module (4), and performance, layout and the imaging parameters of transmission detector module are to detector module (1);
Described image reconstruction module (3) is used for the detector module information of obtaining from detector module (1) is handled;
Described detector planning module (4) is used to plan performance, layout and the imaging parameters of detector module.
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