Clinical evaluation and design of network live broadcast system of DSA video streaming
- VernacularTitle:DSA视频流网络直播系统的设计与临床评价
- Author:
Binjie WANG
;
Heping ZHANG
;
Haiying JIN
;
Fan ZHANG
;
Bo LI
- Publication Type:Journal Article
- Keywords:
Angiography,digital subtraction;
Telemedicine;
Evaluation studies
- From:
Chinese Journal of Radiology
2008;(3):306-308
- CountryChina
- Language:Chinese
-
Abstract:
Objective To evaluate the clinical feasibility of network live broadcast of digital subtraction angiography(DSA)video streaming.Methods DSA video streaming was captured by an advanced image capture board.MPEG-4 and Directshow framework were used for data compression and transmission.Data of DSA video streaming could be transmitted easily from server sender filter to client receiver filter according to TCP and UDP protocols.Images of 24 cases were captured,which were compared with images of DSA workstation by experienced doctors.The subiective evaluation criteria included the manifestition of normal and pathological blood vessels,and sharpness,contrast degree and real time efficiency of images.Results The delay time of live broadcast was less than one second in 100 M LAN.Among 24 cases,excellent imaging quality was got in 17 cases,good in 5 cases and midst in 2 cases.Conclusion Excellent images and synchronism of DSA video are achieved in this system.which can meet clinical requirements of diagnosis and synchronism.
