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多层螺旋CT冠状动脉成像与冠状动脉造影对照研究

Coronary artery imaging with multi-slice spiral CT correlation with coronary angiography

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【作者】 项敏毛定飚邱广平魏建功

【Author】 XIANG Min,MAO Ding-biao,QIU Guang-ping,et al.Department of Radiology,Ningbo No.2 Hospital,Zhejiang 315010,China

【机构】 浙江省宁波市第二医院放射科上海市华东医院放射科浙江省宁波市第二医院放射科 浙江宁波315010上海200040浙江宁波315010浙江宁波315010

【摘要】 目的 :评价 16层螺旋CT诊断冠状动脉疾病的准确性及局限性。方法 :2 5例患者进行 16层螺旋CT冠状动脉成像 (回顾性心电门控、0 .4 2s螺旋扫描 ) ,并与常规冠状动脉造影对照。结果 :在 2 5例患者的 186节段 (血管直径≥ 2mm)中 ,CT图像能满足诊断要求的有 16 1节段 (86 .5 % )。对于CT图像能满足诊断要求的冠状动脉节段 ,MSCT显示中度和中度以上狭窄的敏感度和特异度分别 83.8% (2 6 /31)和 95 .3% (12 4 /130 )。若将不能满足诊断要求的 2 5节段包括内 ,则MSCT显示中度和中度以上狭窄的敏感度为 76 .4 % (2 6 /34)。结论 :16层螺旋CT冠状动脉成像可用于无创性诊断冠状动脉中高度狭窄 ,局限性伪影的影响不可避免。

【Abstract】 Objective:To evaluate the accuracy and limit of 16-slice spiral CT in diagnosis of coronary artery disease.Methods:25 patients were studied by 16-slice spiral CT (retrospectively ECG-gating;0.42s rotation).The results were compared with coronary artery angiography.Results:In the 186 coronary artery segments (vessel diameter≥2mm) of 25 patients, 161 were judged to be evaluable by MSCT (86.5%).The sensitivity and specificity for the detection of ≥50% stenosis were 83.8% (26/31) and 95.3% (124/130) respectively. When 25 coronary artery segments judged unevaluable were included in the analysis, the sensitivity was 76.4% (26/34).Conclusion:16-slice spiral CT could be used in noninvasive assessment of significant coronary artery stenoses with high accuracy. The limit was unavoidable artifacts.

  • 【文献出处】 医学影像学杂志 ,Journal of Medical Imaging , 编辑部邮箱 ,2004年05期
  • 【分类号】R816.2
  • 【被引频次】5
  • 【下载频次】59
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