Left ventricular wall motion analysis using real-time three-dimensional ultrasound.

Journal Article

This study tested the ability of real-time 3-D (RT 3-D) echocardiography to detect and delineate regions of abnormal contraction (akinesia or dyskinesia) in a canine model of regional myocardial injury and to develop methods to simplify injury assessments. Closed chest RT 3-D scans were obtained and regional left ventricular (LV) contractile function was assessed in nine animals at baseline and after myocardial cryoinjury with a 1-cm cryoprobe. Evaluation of contractile function was based on radial shortening of LV chamber cross-sections at multiple levels. Radial length changes were analyzed using color-coded circumferential maps of the LV. Seven sets of motion maps demonstrated new areas of poorly contracting myocardium in the cryoinjured region relative to baseline. Two sets of data were excluded due to insufficient LV visualization. Motion maps derived from RT 3-D echo have the ability to detect and localize regions of abnormal LV wall motion.

Full Text

Duke Authors

Cited Authors

  • Kuo, J; Atkins, BZ; Hutcheson, KA; von Ramm, OT

Published Date

  • February 2005

Published In

Volume / Issue

  • 31 / 2

Start / End Page

  • 203 - 211

PubMed ID

  • 15708460

International Standard Serial Number (ISSN)

  • 0301-5629

Digital Object Identifier (DOI)

  • 10.1016/j.ultrasmedbio.2004.09.015

Language

  • eng

Conference Location

  • England