轴向CT对心脏腔室的评估：与超声心动图的比较。

Evaluation of the cardiac chambers on axial CT: comparison with echocardiography.

作者信息

Ramanathan Rohit, Anumandla Anil K, Haramati Linda B, Spevack Daniel M, Godelman Alla, Jain Vineet R, Kazam Jacob, Burton William B, Levsky Jeffrey M

机构信息

From the *Departments of Radiology, †Medicine, Division of Cardiology, ‡Medicine, and §Family and Social Medicine, Albert Einstein College of Medicine, Montefiore Medical Center, Bronx, NY.

出版信息

J Comput Assist Tomogr. 2014 Jan-Feb;38(1):53-60. doi: 10.1097/RCT.0b013e3182a75fbe.

DOI:10.1097/RCT.0b013e3182a75fbe

PMID:24378891

Abstract

OBJECTIVE

To evaluate qualitative and simple quantitative measures of all 4 cardiac chamber sizes on computed tomography (CT) in comparison with transthoracic echocardiography (TTE).

METHODS

We retrospectively identified 104 adults with electrocardiographically gated cardiac CT and TTE within 3 months. Axial early diastolic (75% R-R) CT images were reviewed for qualitative chamber enlargement, and each chamber was measured linearly. Transthoracic echocardiography was reviewed for linear, area, and volume measurements. Interrater agreement was calculated using Cohen κ and Pearson correlation.

RESULTS

There were significant correlations between linear left atrium and left ventricle sizes by CT and TTE (r = 0.686 and r = 0.709, respectively). Correlations for right atrium and right ventricle measurements were lower (r = 0.447 and r = 0.492, respectively). Agreement between CT and TTE for qualitative chamber enlargement was poor (highest κ = 0.35). Computed tomography sensitivity was ≤ 62% for enlargement of all chambers.

CONCLUSIONS

Linear CT measurements of left-sided chamber sizes correlate well with TTE. Right heart measurements and qualitative assessments agreed poorly with TTE.

摘要

目的

与经胸超声心动图（TTE）相比，评估计算机断层扫描（CT）上所有四个心腔大小的定性和简单定量测量方法。

方法

我们回顾性纳入了104名在3个月内接受心电图门控心脏CT和TTE检查的成年人。回顾轴向舒张早期（R-R间期的75%）CT图像，以评估心腔是否扩大，并对每个心腔进行线性测量。回顾经胸超声心动图的线性、面积和容积测量结果。使用Cohen κ系数和Pearson相关性计算观察者间的一致性。

结果

CT和TTE测量的左心房和左心室线性大小之间存在显著相关性（分别为r = 0.686和r = 0.709）。右心房和右心室测量的相关性较低（分别为r = 0.447和r = 0.492）。CT和TTE在定性评估心腔扩大方面的一致性较差（最高κ系数 = 0.35）。CT对所有心腔扩大的敏感性≤62%。