摘要
介绍了一种单光子发射型计算机断层显像(SPECT)、正电子发射计算机断层显像(PET)心肌核素断层显像左心室提取及优化算法研究,选用"半球加圆柱"模型,提出应用左心室心肌最大放射性计数值采样。采用多参数Powell最优化方法进行模型参数的拟合,并将拟合结果同医师诊断结果进行对比,高度相关评分的一致率为83.2%。
In this paper are presented and recommended the researches of the left ventricle model and optimization arithmetic based on myocardial radionuclide tomographic images （SPECT and PET）. We adopted the hemispheric-cylindrical myocardial model which was largely used in quantitative analysis of myocardium. Then we adopted the radionuclide maximum counts method in LV myocardium and used the Powell optimization arithmetic to fit the myocardial model. Comparing the result from the adopted method against that of the doctors＇ diagnosis, we found the rate of high relevancy being 83.2%.
出处
《生物医学工程学杂志》
EI
CAS
CSCD
北大核心
2007年第4期764-767,共4页
Journal of Biomedical Engineering
