Validation of a Simplified Method to Determine Left Atrial Volume by Computed Tomography in Patients With Atrial Fibrillation

Irene Hof, Armin Zadeh, Jun Dong, Daniel Scherr, Karuna Chilukuri, Hugh Calkins

Research output: Contribution to journalArticle

Abstract

The success of catheter ablation of atrial fibrillation (AF) is highly dependent on a preprocedural assessment of the size and shape of the left atrium. The most precise method to determine left atrial (LA) volume using computed tomography requires manually tracing the LA area of each cross-sectional image. This is a labor-intensive and time-consuming technique. The purpose of this study was to compare LA volume derived using the "gold-standard" multiple-slice technique with LA volume estimated using 3 orthogonal LA dimensions in patients with AF. The patient population was composed of 100 patients referred for catheter ablation of AF (87 men, mean age 57 ± 12 years). AF was paroxysmal in 49 patients and persistent in 51. Each patient underwent computed tomography before catheter ablation, and LA volume was measured using the 2 methods. The mean LA volume measured using the multiple-slice technique was 136 ± 46 ml. According to the simpler estimation approach, the mean LA volume was 112 ± 41 ml. A close correlation was noted between atrial volumes determined using the 2 methods (r = 0.91, p

Original languageEnglish (US)
Pages (from-to)1567-1570
Number of pages4
JournalThe American Journal of Cardiology
Volume102
Issue number11
DOIs
StatePublished - Dec 1 2008

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Cone-Beam Computed Tomography
Atrial Fibrillation
Catheter Ablation
Heart Atria
Gold
Tomography
Population

ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine

Cite this

Validation of a Simplified Method to Determine Left Atrial Volume by Computed Tomography in Patients With Atrial Fibrillation. / Hof, Irene; Zadeh, Armin; Dong, Jun; Scherr, Daniel; Chilukuri, Karuna; Calkins, Hugh.

In: The American Journal of Cardiology, Vol. 102, No. 11, 01.12.2008, p. 1567-1570.

Research output: Contribution to journalArticle

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