Left atrial volume measurement with automated border detection by 3-dimensional echocardiography

Comparison with magnetic resonance imaging

Ramin Artang, Raymond Q. Migrino, Leanne Harmann, Mark Bowers, Timothy Woods

Research output: Contribution to journalArticle

101 Citations (Scopus)

Abstract

Objective. Left atrial size is an important marker for adverse cardiovascular events. There is general consensus that left atrial volume index (LAVI) is the best measurement of size. The current LAVI measurement techniques are laborious. Semi-automated measurement with a 3-dimensional echocardiography (3DE) system may be a practical clinical alternative to measure LAVI, but it has not been adequately evaluated against Magnetic Resonance Imaging (MRI) gold standard. The aim of this study was to compare the accuracy of a commercially available 3D algorithm for measurement of LAVI against LAVI obtained from MRI and Area Length Method (ALM). Design. In 27 consecutive subjects referred for cardiac MRI (age 54 13 years, 63% male), LAVI was measured using 3 imaging modalities: 3DE, ALM, MRI and the results were correlated. ALM was measured using standard American Society of Echocardiography guidelines. The time required to measure LAVI by 3DE and ALM were compared. Results. There was a significant correlation in systolic and diastolic LA volumes and left atrial ejection fraction between 3DE and MRI (r = 0.86 for systole, r = 0.76 for diastole, r = 0.88 for ejection fraction, P < 0.0001 for all). There was also significant correlation of diastolic volumes between 3DE and ALM (r = 0.77, P < 0.0001). The time to obtain LAVI was shorter using 3DE versus ALM (56 8 vs 135 55 seconds, P < 0.0001). Conclusion. Three-dimensional echocardiography with semiautomatic border detection is a practical alternative for obtaining the left atrial volume in a time-efficient manner compared to the current standard.

Original languageEnglish (US)
Article number16
JournalCardiovascular Ultrasound
Volume7
Issue number1
DOIs
StatePublished - Apr 21 2009
Externally publishedYes

Fingerprint

Echocardiography
Magnetic Resonance Imaging
Three-Dimensional Echocardiography
Diastole
Systole
Guidelines

All Science Journal Classification (ASJC) codes

  • Radiology Nuclear Medicine and imaging
  • Cardiology and Cardiovascular Medicine

Cite this

Left atrial volume measurement with automated border detection by 3-dimensional echocardiography : Comparison with magnetic resonance imaging. / Artang, Ramin; Migrino, Raymond Q.; Harmann, Leanne; Bowers, Mark; Woods, Timothy.

In: Cardiovascular Ultrasound, Vol. 7, No. 1, 16, 21.04.2009.

Research output: Contribution to journalArticle

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abstract = "Objective. Left atrial size is an important marker for adverse cardiovascular events. There is general consensus that left atrial volume index (LAVI) is the best measurement of size. The current LAVI measurement techniques are laborious. Semi-automated measurement with a 3-dimensional echocardiography (3DE) system may be a practical clinical alternative to measure LAVI, but it has not been adequately evaluated against Magnetic Resonance Imaging (MRI) gold standard. The aim of this study was to compare the accuracy of a commercially available 3D algorithm for measurement of LAVI against LAVI obtained from MRI and Area Length Method (ALM). Design. In 27 consecutive subjects referred for cardiac MRI (age 54 13 years, 63{\%} male), LAVI was measured using 3 imaging modalities: 3DE, ALM, MRI and the results were correlated. ALM was measured using standard American Society of Echocardiography guidelines. The time required to measure LAVI by 3DE and ALM were compared. Results. There was a significant correlation in systolic and diastolic LA volumes and left atrial ejection fraction between 3DE and MRI (r = 0.86 for systole, r = 0.76 for diastole, r = 0.88 for ejection fraction, P < 0.0001 for all). There was also significant correlation of diastolic volumes between 3DE and ALM (r = 0.77, P < 0.0001). The time to obtain LAVI was shorter using 3DE versus ALM (56 8 vs 135 55 seconds, P < 0.0001). Conclusion. Three-dimensional echocardiography with semiautomatic border detection is a practical alternative for obtaining the left atrial volume in a time-efficient manner compared to the current standard.",
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