跨平台变化的影响 transthoracic 心声谱测量和临床诊断
Mohammad Saber Hashemi1, Yasaman Farsiani1, Gregg S Pressman2
1Department of Biomedical Engineering, University of California Irvine, Irvine, CA, USA.
心声回声系统存在变异,影响心脏测量. 飞利浦和佳能系统在左心室末端透支体积和应变指标上显示出差异,需要考虑患者的随访.
科学领域:
- 心血管成像 - 心血管成像
- 医疗器械技术 医疗器械技术
- 心声回声扫描 (Echocardiography) 是一种心声回声扫描.
背景情况:
- 准确的心室量化对于临床决策至关重要.
- 跨不同心声回声系统的测量一致性是非常可取的.
- 超声波设备之间的差异可能会影响诊断准确性和患者管理.
研究的目的:
- 为了评估飞利浦EPIQ CVx和佳能Aplio i900心声回声系统之间的系统间差异.
- 为了比较心脏体积,心室功能和门结构的测量.
- 识别影响临床使用和患者随访的潜在差异.
主要方法:
- 一个单一中心,性别平衡的研究包括40名健康志愿者 (20名女性,20名男性,年龄≥40岁).
- 参与者在Philips EPIQ CVx (v9.0.3) 和Canon Aplio i900 (v7.0) 上交替进行扫描,使用相同的2D和4D采集设置.
- 配对的t测试,相关性和布兰德-阿尔特曼图分析了左心室 (LV) 和右心室 (RV) 体积,功能和门解剖学的差异.
主要成果:
- 在平台之间没有观察到LV末缩体积或LV喷射分数的显著差异.
- 在 LV 末端透缩体积 (LVEDV) 中发现了显著的差异 (双平面:P=0.018;4D:P=0.028).
- 在RV体积 (2D与4D在平台内,P<0.01),LV缩失调指数 (P=0.03),LV纵向应变 (P=0.04),LV扭曲 (P=0.004) 和LV扭曲 (P=0.005) 中发现的差异. 门结构评估有所不同,在飞利浦平台上出现了更多的异常.
结论:
- 虽然LV和RV的体积测量通常是可比的,但LVEDV和LV变种指标存在显著的系统间差异.
- 在平台内的2D与4D测量中观察到显著的差异.
- 临床医生应该考虑这些平台特定的变化,在解释回声心脏图数据的患者随访和管理.
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