Detection of Cardiac Quiescence from B-Mode Echocardiography Using a Correlation-Based Frame-to-Frame Deviation Measure.
Detection of Cardiac Quiescence from B-Mode Echocardiography Using a Correlation-Based Frame-to-Frame Deviation Measure.
复制标题
使用基于相关性的帧间偏差测量从 B 型超声心动图检测心脏静止。
DOI：
10.1109/jtehm.2013.2291555
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发表时间：
2013
影响因子：
3.4
通讯作者：
Tridandapani,Srini
中科院分区：
文献类型：
--
作者：
Wick,CarsonA;McClellan,JamesH;Ravichandran,Lakshminarayan;Tridandapani,Srini
提出了两种基于相关性的帧间偏差测量的B型超声心动图心脏静止期检测新方法。心脏静止的准确知识是至关重要的性能，许多成像方式，包括计算机断层扫描冠状动脉造影（CTCA）。对10例健康人（男4例，女6例，23-45岁）进行同步心电图（ECG）和超声心动图检查，并在心尖四腔切面观察室间隔（IVS）。IVS的速度来自主动轮廓跟踪，并使用组织多普勒成像超声心动图方法进行验证。反过来，使用主动轮廓跟踪验证用于识别IVS静止的帧到帧偏差方法。发现舒张静止期的定时表现出受试者间和受试者内的变异性，这表明基于ECG的CTCA门控的当前方法是次优的，并且基于源自心脏运动的信号的门控在预测心脏成像的静止方面可能更准确。两个强大的和有效的方法来识别心脏静止相位的B型超声心动图数据的开发和验证。本文提出的方法将用于开发新的CTCA门控技术，并量化CTCA图像质量的潜在改善。
Two novel methods for detecting cardiac quiescent phases from B-mode echocardiography using a correlation-based frame-to-frame deviation measure were developed. Accurate knowledge of cardiac quiescence is crucial to the performance of many imaging modalities, including computed tomography coronary angiography (CTCA). Synchronous electrocardiography (ECG) and echocardiography data were obtained from 10 healthy human subjects (four male, six female, 23-45 years) and the interventricular septum (IVS) was observed using the apical four-chamber echocardiographic view. The velocity of the IVS was derived from active contour tracking and verified using tissue Doppler imaging echocardiography methods. In turn, the frame-to-frame deviation methods for identifying quiescence of the IVS were verified using active contour tracking. The timing of the diastolic quiescent phase was found to exhibit both inter- and intra-subject variability, suggesting that the current method of CTCA gating based on the ECG is suboptimal and that gating based on signals derived from cardiac motion are likely more accurate in predicting quiescence for cardiac imaging. Two robust and efficient methods for identifying cardiac quiescent phases from B-mode echocardiographic data were developed and verified. The methods presented in this paper will be used to develop new CTCA gating techniques and quantify the resulting potential improvement in CTCA image quality.