RSM logo
Journal of Telemedicine and Telecare

Home Current issue Browse archive Alerts About the journal Feedback
 
J Telemed Telecare 2008;14:342-344
doi:10.1258/jtt.2008.007004
© 2008 Royal Society of Medicine Press

This Article
Right arrow Figures Only
Right arrow Full Text
Right arrow Full Text (PDF)
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Similar articles in Web of Science
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Right arrow reprints & permissions
Citing Articles
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Giansanti, D.
Right arrow Articles by Morelli, S.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Social Bookmarking
Add to CiteULike   Add to Complore   Add to Connotea   Add to Del.icio.us   Add to Digg   Add to Reddit   Add to Technorati  
What's this?

RESEARCH

Original articles

Validation of an automatic tool for the assessment of image quality in digital tele-echocardiography

Daniele Giansanti * , Andrea Giordano {dagger} and Sandra Morelli *


* Dipartimento di Tecnologie e Salute, Istituto Superiore di Sanità, Rome; {dagger} Fondazione Maugeri, Pavia, Milano, Italy

Correspondence: Daniele Giansanti, Istituto Superiore di Sanità, Dipartimento di Tecnologie e Salute, Via Regina Elena 299, Roma, Italy (Fax: +39 064 938 7079; Email: daniele.giansanti{at}iss.it)

We investigated a novel tool for assessing image degradation in tele-echocardiography. Different video recordings from an echocardiographic examination were transmitted using commercial videoconferencing equipment via a local area network. Different compression schemes were selected, ranging from MPEG 1 to MPEG 4, with transmission at different bit rates ranging from 1.0 to 4.5 Mbit/s. Three methods were used to compare the transmitted and received video sequences: the peak signal to noise ratio, the Double Stimulus Impairment Scale (DSIS) and the National Telecommunication and Information Administration Virtual Quality Metric (VQM). The results showed that the most useful grading procedure was the subjective DSIS. There was a high correlation between the DSIS results and the VQM. The VQM could be thus an effective tool for evaluating tele-echocardiography transmission systems, avoiding the costs and times associated with conducting subjective tests in repeatable conditions.


Add to CiteULike CiteULike   Add to Complore Complore   Add to Connotea Connotea   Add to Del.icio.us Del.icio.us   Add to Digg Digg   Add to Reddit Reddit   Add to Technorati Technorati    What's this?





  RSM Press eJournals Collection 2010