Comparison of MPEG-1 digital videotape with digitized sVHS videotape for quantitative echocardiographic measurements

Mario J. Garcia, James D. Thomas, Neil Greenberg, Joanne Sandelski, Cesar Herrera, Cheryl Mudd, James Wicks, Kirk Spencer, Alex Neumann, Bonnie Sankpal, Jeffrey Soble

Research output: Contribution to journalArticle

16 Scopus citations

Abstract

Digital format is rapidly emerging as a preferred method for displaying and retrieving echocardiographic studies. The qualitative diagnostic accuracy of Moving Pictures Experts Group (MPEG-1) compressed digital echocardiographic studies has been previously reported. The goals of the present study were to compare quantitative measurements derived from MPEG-1 recordings with the super-VHS (sVHS) videotape clinical standard. Six reviewers performed blinded measurements from still-flame images selected from 20 echocardiographic studies that were simultaneously acquired in sVHS and MPEG-1 formats. Measurements were obtainable in 1401 (95%) of 1486 MPEG-1 variables compared with 1356 (91%) of 1486 sVHS variables (P < .001). Excellent agreement existed between MPEG-1 and sVHS 2-dimensional linear measurements (r = 0.97; MPEG-1 = 0.95[sVHS] + 1.1 mm; P < .001; Δ= 9% ± 10%), 2-dimensional area measurements (r = 0.89), color jet areas (r = 0.87, p < .001), and Doppler velocities (r = 0.92, p < .001). Interobserver variability was similar for both sVHS and MPEG-1 readings. Our results indicate that quantitative off-line measurements from MPEG-1 digitized echocardiographic studies are feasible and comparable to those obtained from sVHS.

Original languageEnglish (US)
Pages (from-to)114-121
Number of pages8
JournalJournal of the American Society of Echocardiography
Volume14
Issue number2
DOIs
StatePublished - Jan 1 2001
Externally publishedYes

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging
  • Cardiology and Cardiovascular Medicine

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    Garcia, M. J., Thomas, J. D., Greenberg, N., Sandelski, J., Herrera, C., Mudd, C., Wicks, J., Spencer, K., Neumann, A., Sankpal, B., & Soble, J. (2001). Comparison of MPEG-1 digital videotape with digitized sVHS videotape for quantitative echocardiographic measurements. Journal of the American Society of Echocardiography, 14(2), 114-121. https://doi.org/10.1067/mje.2001.110270