Positron emission medical imaging system and imaging method

Abstract

The invention relates to the technical field of molecular imaging and medical image imaging technology, in particular to a positron emission medical imaging system and an imaging method. The positronemission medical imaging system comprises a measurement module, a data processing module, an analysis module and a database. The data processing module is respectively connected with the measurement module, the analysis module and the database for analyzing and processing the information obtained by the measurement module and obtaining wave functions and momentum distribution information of the electrons and positrons in the molecule. The database is the lesion molecular database and the analysis module is used for comparing the wave functions with the momentum distribution information, and locating the exit position of the gamma photon and the location of the lesion molecules. Compared with other positron emission tomography medical imaging methods, the positron emission medical imaging system and the imaging method can accurately locate the lesion molecules by only using PET method, and overcome the defect that the traditional single-mode PET can not form clear image. Meanwhile, theobtained gamma spectrum is compared with the lesion molecules in the database so as to determine the structure of lesion molecules, therefore physiological anatomy is avoided.

Description

technical field [0001] The invention relates to the technical fields of molecular imaging and medical imaging, in particular to a positron emission medical imaging system and an imaging method. Background technique [0002] As a new molecular imaging technology, PET technology has been widely recognized for its application and contribution in medicine. PET technology uses the positron nuclide carried by the probe molecule as the positron emission source, annihilates with the target molecule or electrons in the target organ, and releases two high-energy gamma photons with an energy of 511keV for imaging. Compared with the traditional imaging technology, the signal photons of PET technology have short wavelength, strong penetrability, and are not easily disturbed by background scattering and Auger effects of other electrons, and will not be hindered by bones in the body. An advanced medical imaging technology for observing and diagnosing pathological lesions at the molecular ...

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Problems solved by technology

[0004] On the other hand, since traditional PET only collects gamma photons in the direction of 180 degrees, these two photons do not carry any structural information of the lesion molecules, and the opposite extension lines of the outgoing directions of the two photons cannot intersect to a point, so they cannot Clearly locating the location of the lesion usually needs to be combined with MR, CT and other means to assist in positioning to form a multimodal diagnostic method, which is expensive and complex in design; the lesion molecule must also be confirmed by further biological biopsy slices, which requires biological anatomy

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