A semiautomated ultrasound border detection program that facilitates clinical measurement of ultrasound carotid intima-media thickness.

Published

Journal Article

We have developed a novel, semiautomated carotid intima-media thickness (CIMT) border detection program (AUTO) and evaluated its measurement reproducibility and accuracy. Images from 6 carotid segments were acquired in 50 subjects, for a total of 300 segments. Mean and maximum CIMT values were measured blindly at a reference (REF) lab and in duplicate by experienced (EXP) and novice (NOV) readers using manual (MAN) and AUTO methods. Coefficients of variation for AUTO measurements of mean (3.2%) and maximum (4.1%) CIMT were low, and the AUTO method improved the NOV reader's reproducibility. Compared with the REF lab, mean (0.012 +/- 0.006 mm) and maximum (0.144 +/- 0.006 mm) CIMT biases were small and equivalent to those of the REF lab ( P < .001). The AUTO method shortened reading times by 35% to 46% ( P < .001). We conclude that our novel AUTO CIMT measurement program improved reproducibility and was accurate. Compared with MAN tracing, the AUTO method agreed better with the REF lab and decreased reading time.

Full Text

Duke Authors

Cited Authors

  • Stein, JH; Korcarz, CE; Mays, ME; Douglas, PS; Palta, M; Zhang, H; Lecaire, T; Paine, D; Gustafson, D; Fan, L

Published Date

  • March 2005

Published In

Volume / Issue

  • 18 / 3

Start / End Page

  • 244 - 251

PubMed ID

  • 15746714

Pubmed Central ID

  • 15746714

International Standard Serial Number (ISSN)

  • 0894-7317

Digital Object Identifier (DOI)

  • 10.1016/j.echo.2004.12.002

Language

  • eng

Conference Location

  • United States