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Alek S. Hayrapetian
Researcher at University of California, Los Angeles
Publications - 11
Citations - 49
Alek S. Hayrapetian is an academic researcher from University of California, Los Angeles. The author has contributed to research in topics: Picture archiving and communication system & Image processing. The author has an hindex of 4, co-authored 11 publications receiving 46 citations.
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Proceedings ArticleDOI
Three-dimensional transform compression of images from dynamic studies
Kelby K. Chan,Christina C. Lau,Shyhliang A. Lou,Alek S. Hayrapetian,Bruce Kuo Ting Ho,H. K. Huang +5 more
TL;DR: In this paper, a 3D cosine transform based image compression method was proposed to take advantage of the correlations between adjacent pLtels in an image for time-sequenced studies.
Proceedings ArticleDOI
Assessment of asynchronous transfer mode (ATM) networks for regional teleradiology
Andre J. Duerinckx,Alek S. Hayrapetian,Daniel J. Valentino,Edward Grant,Darius Rahbar,Mike Kiszonas,Ricky Franco,Guy H. Shimabuku,Girish T. Hagan,M L Melany,Sherelle L. Narin,Nagesh Ragavendra +11 more
TL;DR: In this paper, the authors evaluated the effect of ATM network capabilities on the clinical practice of regional teleradiology, by providing immediate interactive radiology consultations between subspecialists and general radiologists at affiliated academic institutions.
Proceedings ArticleDOI
Enhancement of resident education in sonography using high-speed PACS/ATM image transmission: work in progress
Andre J. Duerinckx,Edward Grant,M L Melany,Sherelle L. Narin,Alek S. Hayrapetian,Daniel J. Valentino +5 more
TL;DR: The effectiveness of image transmission via a PACS/ATM global network in improving ultrasound education among residents at affiliated hospitals was assessed and was considered an excellent teaching tool by all faculty and residents surveyed.
Proceedings ArticleDOI
Display conditions and lesion detectability: effect of background light
Mahmood Razavi,Theodore R. Hall,Denise R. Aberle,Alek S. Hayrapetian,Mansur Loloyan,Sandra Lee Eldredge +5 more
TL;DR: The results of receiver operator characteristic analysis show that extraneous light does reduce observer performance and the detectability of nodules, interstitial disease.
Proceedings ArticleDOI
X-window-based 2K display workstation
Wolfram S. Weinberg,Alek S. Hayrapetian,Paul S. Cho,Daniel J. Valentino,Ricky K. Taira,H. K. Huang +5 more
TL;DR: A high-definition, high-performance display station for reading and review of digital radiological images is introduced and will provide for manual contour tracing, length, area, and density measurements, text and graphic overlay, as well as composition of selected images.