QA evaluation method and system based on medical image and medical equipment

Abstract

The invention provides a QA evaluation method and a system based on an medical image and medical equipment. The QA evaluation method comprises the following steps: acquiring a medical reference image and a medical comparison image; normalizing the medical comparison image by taking the medical reference image as a reference according to a preset normalization evaluation strategy; obtaining evaluation parameter information according to the medical reference image and the normalized medical comparison image; and obtaining an evaluation result according to the evaluation parameter information. According to the medical image QA evaluation method and system and the medical equipment provided by the invention, the randomness of image point selection can be avoided, and more accurate evaluation can be realized. Furthermore, the method can be used for dose verification before radiotherapy, so that a specified dose can be received by tumors or abnormities, and meanwhile, surrounding normal tissues are not damaged; and the method can be used for quantitatively evaluating the treatment effect of the patient after treatment, so that doctors can conveniently adjust the treatment plan of the patient at any time.

Description

technical field [0001] The invention relates to the field of medical verification, in particular to a medical image-based QA (Quality Assurance) evaluation method, system and medical equipment. Background technique [0002] In radiation therapy, due to the complexity and irregularity of the target volume, intensity-modulated radiotherapy (IMRT) and volumetric modulated ARCTherapy (VMAT) have become the most commonly used treatment techniques for tumor radiation therapy. . During the execution of the plan, the movement accuracy of the potential mechanical system, the instability of the dose output, and the actual position of the multi-leaf collimator (Multi-Leaf Collimator, MLC) affect the treatment effect of the patient, so it is necessary to Dose verification of radiation therapy before treatment or evaluation and confirmation of patient treatment effect after treatment. [0003] Based on the Electronic Portal Imaging Device (EPID) to measure the portal imaging data of pa...

AI Technical Summary

Problems solved by technology

Although these methods can meet the analysis of treatment effects to a certain extent, due to the great randomness of this selection method, it is difficult to reflect the real situation of the image. For more detailed comparisons, such as comparing different angles in VMAT technology The impact analysis between, as well as highlighting the dose impact of a specific region of interest (Region Of Interest, ROI) in the Invivo analysis, the above evaluation methods in the prior art cannot meet the requirements

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