中国医疗设备2017，Vol.32Issue(1)：30-33,45,5.DOI:10.3969/j.issn.1674-1633.2017.01.008
一种用于PET/CT呼吸运动伪影校正性能测试的动态体模设计
Movable Phantom Design for Performance Test of PET/CT Respiratory Motion Artifact Correction
摘要
Abstract
ObjectiveTo design a respiratory motion artifact correction performance test phantom which is used to quantitatively analyze the operating results of PET/CT respiratory gating system.Methods This thoracic cavity model was designed based on the image quality testing body model of American National Electrical Manufacturers Association, on which the inner diameter of the same aperture was used to insert content. The contents were internal cylinders that contain different diameters of hollow ball. Fluorodeoxyglucose solution was perfused into the hollow balls to simulate the size of lung cancer. Through a high-precision motor to control the elevation of the chest phantom, and simulate chest expansion and contraction of human respiratory; another high-precision motor was used to control the rotation, in and out of tumor mimics and simulated trajectories lung cancer with chest breathing.Results Compared with the standard image, preliminary experimental results indicated that the tumor deviation on three dimensions were 12.42 mm (axial), 13.36 mm (coronary) and 12.28 mm (sagittal) respectively, which was consistent with the clinical research. The results showed that the respiratory motion artifact correction performance test phantom could quantitatively evaluate the breathing artifact correction effects of respiratory movement control methods.ConclusionThismovable phantom is simple, and is not subject to the operational experience of clinical staffs and individual differences of experimental subject. The use of high-precision motor to control mold body movement reduces the impact of system error during actual operation and random error, while ensuring the reproducibility of the experiment.关键词
PET/CT/呼吸运动伪影/性能测试/动态体模/肺部肿瘤Key words
PET/CT/respiratory motion artifact/performance test/movable phantom/lung tumor分类
医药卫生引用本文复制引用
胡红波,胡莹,丘志芬,刘鸿翔..一种用于PET/CT呼吸运动伪影校正性能测试的动态体模设计[J].中国医疗设备,2017,32(1):30-33,45,5.基金项目
全军医学科技青年培育计划（16QNP048）。 （）
