Internet-based transfer of cardiac ultrasound images

Michael S. Firstenberg, Neil L. Greenberg, Mario J. Garcia, Annitta J. Morehead, Lisa A. Cardon, Allan L. Klein, James D. Thomas

Research output: Contribution to journalArticlepeer-review

11 Scopus citations


A drawback to large-scale multicentre studies is the time required for the centralized evaluation of diagnostic images. We evaluated the feasibility of digital transfer of echocardiographic images to a central laboratory for rapid and accurate interpretation. Ten patients undergoing trans-oesophageal echocardiographic scanning at three sites had representative single images and multiframe loops stored digitally. The images were analysed in the ordinary way. All images were then transferred via the Internet to a central laboratory and reanalysed by a different observer. The file sizes were 1.5-72 MByte and the transfer rates achieved were 0.6-4.8 Mbit/min. Quantitative measurements were similar between most on-site and central laboratory measurements (all P>0.25), although measurements differed for left atrial width and pulmonary venous systolic velocities (both P<0.05). Digital transfer of echocardiographic images and data to a central laboratory may be useful for multicentre trials.

Original languageEnglish (US)
Pages (from-to)168-171
Number of pages4
JournalJournal of Telemedicine and Telecare
Issue number3
StatePublished - 2000
Externally publishedYes

ASJC Scopus subject areas

  • Health Informatics


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