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Murine Echocardiography of Left Atrium, Aorta, and Pulmonary Artery
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Evaluating the consistency in different methods for measuring left atrium diameters
Jun-Yan Yue1,2,3, Kai Ji1, Hai-Peng Liu1
1Department of Radiology, The First Affiliated Hospital of Xinxiang Medical University, Weihui Henan Province, 453200, Xinxiang, China.
BMC Medical Imaging
|March 5, 2024
Summary
Physician measurements of the left atrium (LA) diameter are reliable. However, different measurement techniques yield varying results, with volume rendering (VR) of the LA long diameter being most clinically applicable for atrial fibrillation ablation.
Area of Science:
- Cardiology
- Radiology
- Medical Imaging
Background:
- Accurate morphological assessment of the pulmonary vein (PV) and left atrium (LA) is crucial for effective atrial fibrillation ablation.
- Variations in LA diameter measurements can impact treatment planning and outcomes.
Purpose of the Study:
- To evaluate the consistency of different left atrium (LA) diameter measurement techniques.
- To compare the clinical applicability of various measurement methods for LA dimensions.
Main Methods:
- Retrospective analysis of 87 patients' PV computed tomography angiography data.
- Independent measurements of LA anteroposterior, long, and transverse diameters by two physicians using six distinct methods.
- Assessment of intra-rater reliability and inter-rater consistency using intraclass correlation coefficient (ICC).
Main Results:
- Strong to very strong inter-rater consistency was observed for LA diameter measurements.
- Statistically significant differences were found in LA diameter measurements across different techniques (P < 0.001).
- Measurement methods varied significantly in the time required for image post-processing (P < 0.001).
Conclusions:
- Left atrium (LA) diameter measurements by physicians demonstrate reliability.
- Significant variations exist in LA dimensions obtained via different measurement techniques.
- Measuring LA long diameter using volume rendering (VR) alone is identified as the most clinically applicable method.
