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

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

19 Scopus citations


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
Issue number2
StatePublished - 2001

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging
  • Cardiology and Cardiovascular Medicine


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