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Related Concept Videos

Cardiac Catheterization III: Left Heart Catheterization01:24

Cardiac Catheterization III: Left Heart Catheterization

Left heart catheterization is an invasive diagnostic procedure used to evaluate the function and structure of the left side of the heart. It is generally performed to diagnose and treat cardiovascular conditions such as valve abnormalities, coronary artery disease, and congenital heart defects.Diagnostic and therapeutic purposesLeft heart catheterization serves various diagnostic and therapeutic purposes, including:Assessing coronary artery bypass grafts.Evaluating coronary artery disease in...

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Related Experiment Video

Updated: Jul 11, 2026

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
PubMed
Summary
This summary is machine-generated.

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.

Keywords:
DiameterLeft atriumMeasurementTomographic techniqueX-ray computer

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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.