目的:本PET/CT中心试运行一套13N-NH3·H2O动态心肌灌注显像的标准化操作规程,并对其可行性进行评价。方法:2013年10月—2015年3月对53例患者按照制定的操作规程进行13N-NH3·H2O动态心肌灌注显像。结果:2013年10月—2014年9月的初级阶段进行了43例采集,该阶段的分药剂量为(31.20±6.53) mCi,校准剂量为(23.37±5.22) mCi,时间间隔为(4'05"±1'50"),开始采集计数(106)为45.84±10.77;2014年10月—2015年3月的优化阶段进行了10例采集,该阶段的分药剂量为(26.68±7.37) mCi,校准剂量为(20.39±5.41) mCi,时间间隔为(3'47"±0'56"),开始采集计数(106)为35.08±11.55。53例结果图像清晰,该操作规程具有良好的可行性。结论:本中心针对13N-NH3·H2O动态心肌灌注显像建立的标准化操作规程具有良好的操作性与重复性,值得推广使用。
Abstract
Objective: To establish and analyze its feasibility of a standardized procedure for 13N-ammonia dynamic myocardial perfusion imaging for PET/CT centers. Methods: 13N-ammonia dynamic myocardial perfusion imaging was performed on 53 patients based on the operational procedure from October 2013 to March 2015. Results: From October 2013 to September 2014, termed as primary stage, 43 samples were collected with their original dosage of(31.20±6.53)mCi and calibrated dosage of (23.37±5.22) mCi. The interval was set (4'05"±1'50") and the initial collecting counts(106) were 45.84±10.77. From October 2014 to March 2015, termed as optimizing stage, 10 samples were collected with their original dosage of (26.68±7.37) mCi and calibrated dosage of (20.39±5.41) mCi. The interval was set (3'47"±0'56") and the initial collection counts(106) were 35.08±11.55. Consequently, the images of the 53 samples were clear, indicating the excellent feasibility of this operational procedure. Conclusions: We build up a standardized procedure for 13N-ammonia dynamic myocardial perfusion imaging for PET/CT centers with good feasibility and repeatability and its promotion is recommended.
关键词
心脏病 /
心肌 /
正电子发射断层显像术 /
体层摄影术 /
螺旋计算机
Key words
Heart diseases /
Myocardium /
Positron-emission tomography /
Tomography, spiral computed
中图分类号:
R541
R817.4
R814.42
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