| 张峻,郭瑞强,孙有刚,尹家保,周立明.超声背向散射技术定量评价冬眠心肌的临床研究[J].中国医学影像技术,2002,18(1):42~43 |
| 超声背向散射技术定量评价冬眠心肌的临床研究 |
| A Clinic Study of Hibernating Myocardium with Ultrasonic Integrated Backscatter Evaluation |
| 投稿时间：2001-09-16 |
| DOI： |
| 中文关键词: 背向散射积分 心肌梗死 存活心肌 |
| 英文关键词:Integrated backscatter Myocardial infarction Viable myocardium |
| 基金项目:湖北省教育厅资助课题(99A061)。 |
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| 中文摘要: |
| 目的 探讨心肌背向散射积分参数定量评价陈旧性心肌梗死后存活心肌。方法 于乳头肌水平左室短轴切面记录25例心肌梗死患者的超声背向散射图像,比较经皮冠状动脉球囊成形术(PTCA)治疗前、后心肌背向散射积分周期变异(CVIB)和标化CVIB(CVIB%)的变化。结果 按不同节段分组比较,经二维超声心动图判断为存活心肌的CVIB及CVIB%术后较术前有显著性的提高。若以CVIB%增加(△CVIB%)>10为判断冬眠心肌的标准,则敏感性、特异性、准确性分别为81.3%、87.5%、83.3%。结论 对于陈旧性心肌梗死患者,CVIB和CVIB%可作为评价冬眠心肌的定量、客观的指标运用于临床。 |
| 英文摘要: |
| Objective To evaluate cyclic variation of integrated backscatter (CVIB) and calibrated CVIB (CVIB%) in diagnosing viable myocardium after old myocardial infarction (OMI). Methods Twenty five patients with OMI were studied by ultrasonic integrated backscatter before and 6 weeks after percutaneous transluminal coronary angioplasty (PTCA). CVIB and CVIB% of 4 segments in parasternal papillary short-axis view were analyzed. Results CVIB and CVIB% increased significantly 6 weeks after PTCA. With CVIB% increasing more than 10 as standard for diagnosing hibernating myocardium, the sensitivity, specificity, and accuracy were 81.3%, 87.5% and 83.3% respectively. Conclusion CVIB and CVIB% were valuable for diagnosing hibernating myocardium quantitatively and objectively. |
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