Evaluation method and system based on pet/ct image quality objective algorithm

Abstract

Disclosed in the present invention are an evaluation method and system based on a PET / CT image quality objective algorithm, wherein the method comprising the following steps: inputting an objective algorithm required to be evaluated, selecting a test type in a preset subjective evaluation database, and then calculating a prediction result of the objective algorithm according to the test type; performing nonlinear compensation on the prediction result to eliminate nonlinear factors introduced in the subjective evaluation database; and performing the evaluation on the prediction result of the objective algorithm according to three aspects of accuracy, monotonicity and consistency of the algorithm. The evaluation method can reflect the performance of the objective algorithm comprehensively and objectively, and has the characteristics of simplicity for application and good real-time property. With the evaluation method of the present invention, the performance of the objective evaluation algorithm can be tested comprehensively, accurately and quickly.

Description

technical field [0001] The invention relates to the field of algorithm evaluation, in particular to an evaluation method and system based on an objective algorithm of PET / CT image quality. Background technique [0002] PET / CT is a new type of medical equipment formed by combining PET and CT. The combination of PET and CT not only retains the role of classic anatomical images, but also adds advanced molecular imaging functions, and its combination is far superior to the value of each alone. PET / CT examination has the characteristics of sensitivity, specificity, accuracy, and precise positioning, and one imaging can obtain tomographic images of all directions of the human body, so as to achieve the purpose of early detection of lesions and diagnosis of diseases. [0003] Medical images, especially radiological imaging, are an important basis for clinical medical research, diagnosis, and treatment. The development of medical image quality evaluation methods is of great signif...

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Problems solved by technology

[0008] In view of the above-mentioned deficiencies in the prior art, the purpose of the present invention is to provide an evaluation method and system based on an objective algorithm for PET / CT image quality, aiming at solving the problem that the existing objective algorithm evaluation method cannot truly reflect the performance of the algorithm

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