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- Title
Review of Technology:Planning for the Development of Telesonography.
- Authors
Bassignani, Matthew J.; Dwyer III, Samuel J.; Ciambotti, Jonathan M.; Olazagasti, Juan M.; Moran, Ruth; Moynihans, Sean; Weaver, Alfred C.; Snyder, Andrew M.
- Abstract
Teleradiology allows contemporaneous interpretation of imaging exams performed at some distance from the interpreting radiologist. The transmitted images are usually static. However, there is benefit to real-time review of full-motion ultrasound (US) exams as they are performed. Telesonography is transmission of full-motion sonographic data to a remote site. We hypothesize that US exams, read after having been compressed utilizing Motion Picture Experts Group version 4 (MPEG-4) compression scheme, transmitted over the Internet as streaming multimedia, decompressed, and displayed, are equivalent in diagnostic accuracy to reading the examinations locally. MPEG-4 uses variable compression on each image frame to achieve a constant output bit rate. With less compression, the bit rate rises, and the only way the encoder can contain bit rate within the set bandwidth is by lowering frame rate or reducing image quality. We review the relevant technologies and industry standard components that will enable low cost telesonography.
- Subjects
ULTRASONIC imaging; ACOUSTIC imaging; ULTRASONICS; RADIOLOGY; DIGITAL image processing; MPEG (Video coding standard); VIDEO compression standards; DIGITAL video standards
- Publication
Journal of Digital Imaging, 2004, Vol 17, Issue 1, p18
- ISSN
0897-1889
- Publication type
Article
- DOI
10.1007/s10278-003-1721-4