Estimation of right ventricular free-wall mass using two-dimensional echocardiography

J. J. Joyce, S. Denslow, C. H. Kline, B. G. Baylen, Henry B Wiles

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

Echocardiographic methods based on geometric models have long been in use for estimating left ventricular mass, but there is currently no similar method for estimating right ventricular (RV) free-wall mass. We hypothesized that a one-quarter prolate ellipsoid model could be used with two-dimensional echocardiography to approximate RV mass. Over a 2-year period 39 patients who had both a complete cardiac magnetic resonance imaging (MRI) scan and an echocardiogram within 2 weeks of each other were retrospectively analyzed. MRI-derived RV mass was used as the standard for comparison. Echocardiographic RV mass was estimated using three equations based on the geometric model. Linear regression analysis was performed to determine the correction factors used in the final formulae. The formula with the lowest standard error of the estimate was then prospectively analyzed for accuracy using a separate group of 88 subjects. The most accurate echocardiographic equation derived was RV mass = 5.84 (apical four-chamber RV cavity planar area) (RV free-wall thickness) + 1. Compared to MRI-RV mass the correlation coefficient was 0.97 and the standard error of the estimate was 16.8%. The positive and negative predictive values for diagnosing RV hypertrophy were 95% and 88%, respectively. We conclude that RV free-wall mass can be estimated by two-dimensional echocardiography using a one-quarter prolate ellipsoid shell model.

Original languageEnglish (US)
Pages (from-to)306-314
Number of pages9
JournalPediatric Cardiology
Volume22
Issue number4
DOIs
StatePublished - Jan 1 2001
Externally publishedYes

Fingerprint

Phosmet
Echocardiography
Magnetic Resonance Imaging
Right Ventricular Hypertrophy
Linear Models
Regression Analysis

Keywords

  • Echocardiography
  • Hypertrophy
  • Mass
  • Right ventricle

ASJC Scopus subject areas

  • Pediatrics, Perinatology, and Child Health
  • Cardiology and Cardiovascular Medicine

Cite this

Estimation of right ventricular free-wall mass using two-dimensional echocardiography. / Joyce, J. J.; Denslow, S.; Kline, C. H.; Baylen, B. G.; Wiles, Henry B.

In: Pediatric Cardiology, Vol. 22, No. 4, 01.01.2001, p. 306-314.

Research output: Contribution to journalArticle

Joyce, J. J. ; Denslow, S. ; Kline, C. H. ; Baylen, B. G. ; Wiles, Henry B. / Estimation of right ventricular free-wall mass using two-dimensional echocardiography. In: Pediatric Cardiology. 2001 ; Vol. 22, No. 4. pp. 306-314.
@article{d305913a85a24a73b82d81c4343374be,
title = "Estimation of right ventricular free-wall mass using two-dimensional echocardiography",
abstract = "Echocardiographic methods based on geometric models have long been in use for estimating left ventricular mass, but there is currently no similar method for estimating right ventricular (RV) free-wall mass. We hypothesized that a one-quarter prolate ellipsoid model could be used with two-dimensional echocardiography to approximate RV mass. Over a 2-year period 39 patients who had both a complete cardiac magnetic resonance imaging (MRI) scan and an echocardiogram within 2 weeks of each other were retrospectively analyzed. MRI-derived RV mass was used as the standard for comparison. Echocardiographic RV mass was estimated using three equations based on the geometric model. Linear regression analysis was performed to determine the correction factors used in the final formulae. The formula with the lowest standard error of the estimate was then prospectively analyzed for accuracy using a separate group of 88 subjects. The most accurate echocardiographic equation derived was RV mass = 5.84 (apical four-chamber RV cavity planar area) (RV free-wall thickness) + 1. Compared to MRI-RV mass the correlation coefficient was 0.97 and the standard error of the estimate was 16.8{\%}. The positive and negative predictive values for diagnosing RV hypertrophy were 95{\%} and 88{\%}, respectively. We conclude that RV free-wall mass can be estimated by two-dimensional echocardiography using a one-quarter prolate ellipsoid shell model.",
keywords = "Echocardiography, Hypertrophy, Mass, Right ventricle",
author = "Joyce, {J. J.} and S. Denslow and Kline, {C. H.} and Baylen, {B. G.} and Wiles, {Henry B}",
year = "2001",
month = "1",
day = "1",
doi = "10.1007/s002460010235",
language = "English (US)",
volume = "22",
pages = "306--314",
journal = "Pediatric Cardiology",
issn = "0172-0643",
publisher = "Springer New York",
number = "4",

}

TY - JOUR

T1 - Estimation of right ventricular free-wall mass using two-dimensional echocardiography

AU - Joyce, J. J.

AU - Denslow, S.

AU - Kline, C. H.

AU - Baylen, B. G.

AU - Wiles, Henry B

PY - 2001/1/1

Y1 - 2001/1/1

N2 - Echocardiographic methods based on geometric models have long been in use for estimating left ventricular mass, but there is currently no similar method for estimating right ventricular (RV) free-wall mass. We hypothesized that a one-quarter prolate ellipsoid model could be used with two-dimensional echocardiography to approximate RV mass. Over a 2-year period 39 patients who had both a complete cardiac magnetic resonance imaging (MRI) scan and an echocardiogram within 2 weeks of each other were retrospectively analyzed. MRI-derived RV mass was used as the standard for comparison. Echocardiographic RV mass was estimated using three equations based on the geometric model. Linear regression analysis was performed to determine the correction factors used in the final formulae. The formula with the lowest standard error of the estimate was then prospectively analyzed for accuracy using a separate group of 88 subjects. The most accurate echocardiographic equation derived was RV mass = 5.84 (apical four-chamber RV cavity planar area) (RV free-wall thickness) + 1. Compared to MRI-RV mass the correlation coefficient was 0.97 and the standard error of the estimate was 16.8%. The positive and negative predictive values for diagnosing RV hypertrophy were 95% and 88%, respectively. We conclude that RV free-wall mass can be estimated by two-dimensional echocardiography using a one-quarter prolate ellipsoid shell model.

AB - Echocardiographic methods based on geometric models have long been in use for estimating left ventricular mass, but there is currently no similar method for estimating right ventricular (RV) free-wall mass. We hypothesized that a one-quarter prolate ellipsoid model could be used with two-dimensional echocardiography to approximate RV mass. Over a 2-year period 39 patients who had both a complete cardiac magnetic resonance imaging (MRI) scan and an echocardiogram within 2 weeks of each other were retrospectively analyzed. MRI-derived RV mass was used as the standard for comparison. Echocardiographic RV mass was estimated using three equations based on the geometric model. Linear regression analysis was performed to determine the correction factors used in the final formulae. The formula with the lowest standard error of the estimate was then prospectively analyzed for accuracy using a separate group of 88 subjects. The most accurate echocardiographic equation derived was RV mass = 5.84 (apical four-chamber RV cavity planar area) (RV free-wall thickness) + 1. Compared to MRI-RV mass the correlation coefficient was 0.97 and the standard error of the estimate was 16.8%. The positive and negative predictive values for diagnosing RV hypertrophy were 95% and 88%, respectively. We conclude that RV free-wall mass can be estimated by two-dimensional echocardiography using a one-quarter prolate ellipsoid shell model.

KW - Echocardiography

KW - Hypertrophy

KW - Mass

KW - Right ventricle

UR - http://www.scopus.com/inward/record.url?scp=0034968594&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0034968594&partnerID=8YFLogxK

U2 - 10.1007/s002460010235

DO - 10.1007/s002460010235

M3 - Article

C2 - 11455398

AN - SCOPUS:0034968594

VL - 22

SP - 306

EP - 314

JO - Pediatric Cardiology

JF - Pediatric Cardiology

SN - 0172-0643

IS - 4

ER -