二尖瓣脱垂：心电图门控心脏 CT 血管造影评估。
Mitral valve prolapse: evaluation with ECG-gated cardiac CT angiography.
机构信息
Department of Radiology, Cleveland Clinic Florida, 2950 Cleveland Clinic Blvd., Weston, FL 33331, USA.
出版信息
AJR Am J Roentgenol. 2010 Mar;194(3):579-84. doi: 10.2214/AJR.09.2545.
OBJECTIVE
The purpose of our study was to evaluate the feasibility of detecting mitral valve prolapse with ECG-gated 64-MDCT angiography in comparison with the reference standard, transthoracic echocardiography.
MATERIALS AND METHODS
The charts of patients consecutively referred for clinically indicated 64-MDCT angiography were reviewed. The study cohort consisted of patients who had undergone transthoracic echocardiography. Two experienced radiologists performed blinded consensus review of the MDCT angiograms of 20 patients, and the findings were compared with those of transthoracic echocardiography, which was the reference standard.
RESULTS
With the findings on each anterior and posterior leaflet as separate data points, sensitivity was calculated to be 69.2-84.6% and specificity, 100%. The positive and negative predictive values were estimated to be 100% and 87.0-93.1%.
CONCLUSION
ECG-gated cardiac 64-MDCT angiography can be used reliably to detect mitral valve prolapse.
目的
本研究旨在评估心电图门控 64 层 MDCT 血管造影术检测二尖瓣脱垂的可行性，并与参考标准——经胸超声心动图进行比较。
材料与方法
对连续因临床指征行 64 层 MDCT 血管造影的患者进行图表回顾。研究队列包括接受经胸超声心动图检查的患者。两位经验丰富的放射科医生对 20 例患者的 MDCT 血管造影进行了盲法共识评估，并将结果与参考标准——经胸超声心动图进行比较。
结果
将每个前叶和后叶的发现作为单独的数据点进行计算，其敏感性为 69.2%-84.6%，特异性为 100%。阳性和阴性预测值估计分别为 100%和 87.0%-93.1%。
结论
心电图门控心脏 64 层 MDCT 血管造影术可用于可靠地检测二尖瓣脱垂。
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