摘要
目的：探讨通过改变采集体位和CT衰减校正心肌灌注成像对下后壁伪影鉴别的临床价值。材料和方法：对54例正常人分组进行改变采集体位和CT衰减校正心肌灌注成像，通过计算正常率、Kappa值、累计评分、左室各壁放射性计数百分比进行对比分析。结果：改变采集体位和CT衰减校正成像后计算的正常率、Kappa值、累计评分、下后壁放射性计数百分比较常规显像有明显改善（P<0.05）。结论：改变采集体位和CT衰减校正改变体位成像能有效地鉴别心肌灌注图像下后壁伪影，明显提高了诊断的准确性。
Abstract
Objective: To discuss the clinical value of changing imaging position and CT attenuation correction in the differentiation of inferior-posterior myocardial artifact. Methods: Changing imaging position and performing CT attenuation correction in the process of myocardial perfusion imaging were performed in 54 normal persons, and the normalcy rate, Kappa, accumulative score, count percent in different region of myocardium were calculated respectively. Results: The normalcy rate, Kappa, accumulative score were significantly improved by the way of changing imaging position and performing CT attenuation correction(P<0.05). Conclusion: The artifacts in the inferior-posterior myocardium can be efficiently differentiated by the way of changing imaging position and performing CT attenuation correction, and the diagnostic accuracy is significantly improved.
关键词
心肌 /
放射性核素显像
Key words
myocardium /
radionuclide imaging
李剑明;刘金兰;张丽娟;裴著果;张彩霞.
改变采集体位和CT衰减校正在心肌灌注成像下后壁伪影鉴别中的临床价值[J]. 中国临床医学影像杂志. 2007, 18(1): 29-31
LI Jian-ming;LIU Jin-lan;ZHANG Li-juan;PEI Zhu-guo;ZHANG Cai-xia.
Clinical value of changing imaging position and CT attenuation correction in the differentiation ofinferior-posterior myocardial artifact[J]. Journal of China Clinic Medical Imaging. 2007, 18(1): 29-31
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