On-line automated border detection for echocardiographic quantification of right ventricular size and function in children

Pediatric Cardiology
W A HelbingJ H Reiber

Abstract

Rapid, accurate assessment of right ventricular (RV) size is important for the management of children with congenital heart disease. The usefulness of the Acoustic Quantification system of automated border detection (ABD) and on-line quantification (AQ) for assessment of RV size was tested in 36 children. AQ data were compared to "corrected AQ" measurements (after correction for cavity areas erroneously included in the region of interest) required for AQ. Furthermore, the influence of necessary changes to gain settings was tested in "lateral gain control" (LGC) images obtained by removal of ABD overlays. All results were compared to conventional echocardiography (echo), and agreement with magnetic resonance imaging (MRI) RV areas was assessed. Systematic differences (+/-) limits of agreement with MRI (transverse plane) for conventional echo and AQ (apical four-chamber view) were as follows: end-diastolic -0.8 +/- 3.8 (conventional echo) versus -1.7 +/- 4.6 (AQ) cm2/m2 (p < 0.001); end-systolic -1.3 +/- 3.2 versus -4.9 +/- 5.8 (AQ) cm2/m2 (p < 0.001); fractional area change 7.8 +/- 17.0% versus 26.9 +/- 31.4% (AQ) (p < 0.001). Differences between conventional echo, LGC, and corrected AQ areas were not statistically significant. ...Continue Reading

Citations

May 21, 2005·The American Journal of Cardiology·Shunji KurotobiKeiichi Ozono
Sep 17, 2009·The International Journal of Cardiovascular Imaging·Rachael EdwardsFlorence H Sheehan
May 8, 2015·The International Journal of Cardiovascular Imaging·Diego MedvedofskyVictor Mor-Avi
Nov 14, 2006·Journal of the American Society of Echocardiography : Official Publication of the American Society of Echocardiography·Jesper KjaergaardChristian Hassager

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