Department of Cardiology, Academic Medical Center, B2-240, Meibergdreef 9, 1105, Amsterdam, the Netherlands.
Neth Heart J. 2012 Nov;20(11):456-62. doi: 10.1007/s12471-012-0310-x.
20 % of patients with a systemic RV are pacemaker dependent, and unsuitable to undergo cardiac magnetic resonance (CMR). Multidetector row computed tomography (MDCT) could provide a reproducible alternative to CMR in these patients. The aim of this study was to compare variability of MDCT with CMR.
Thirty-five patients with systemic RV underwent either MDCT (n = 15) or CMR (n = 20). Systemic RV volumes and ejection fraction were obtained, and intra- and interobserver variability for both modalities were assessed and compared.
We found the intra- and interobserver variability of volumes and function measurements of the systemic RV obtained with MDCT to be higher compared with those obtained with CMR. However, these differences in variability were not significant, the only exception being the interobserver variability of systemic RV stroke volume.
MDCT provides a reproducible alternative to CMR for volumes and function assessment in patients with a systemic RV.
20%的系统性右心室患者需要依赖起搏器，不适合进行心脏磁共振（CMR）检查。多层螺旋 CT（MDCT）可以为这些患者提供一种可重复的 CMR 替代方法。本研究旨在比较 MDCT 与 CMR 的可变性。
35 例系统性右心室患者接受 MDCT（n=15）或 CMR（n=20）检查。测量系统性右心室的容积和射血分数，并评估和比较两种方法的观察者内和观察者间的可变性。
我们发现，与 CMR 相比，MDCT 测量系统性右心室容积和功能的观察者内和观察者间的可变性更高。然而，这些可变性的差异并不显著，唯一的例外是系统性右心室的射血分数的观察者间可变性。
MDCT 为系统性右心室患者的容积和功能评估提供了一种可重复的 CMR 替代方法。
