Won-Suk Kang MS, Presenter: Nothing to Disclose

Keon Ho Yang, Abstract Co-Author: Nothing to Disclose

Bong Mun Jang, Abstract Co-Author: Nothing to Disclose

Joong Il Kim, Abstract Co-Author: Nothing to Disclose

Dong Hoon Han, Abstract Co-Author: Nothing to Disclose

Hee-Joung Kim PhD, Abstract Co-Author: Nothing to Disclose

Suk-Kook Yoo PhD, Abstract Co-Author: Nothing to Disclose

Hyung-Sik Yoo MD, Abstract Co-Author: Nothing to Disclose

Haijo Jung PhD, Abstract Co-Author: Nothing to Disclose

et al, Abstract Co-Author: Nothing to Disclose

In this study, a prototype wireless mobile image display and flow control system using CDMA 1x EVDO based smart phone for emergency care was designed.

The prototype system consists of a server workstation, a smart phone (iPAQ RW6100, LG electronics, Korea)used as a mobile image display and flow control system, support to CDMA 1x EVDO communication service, and client workstation in remote hospital. The server workstation provides functions of image query and retrieves, compression , and progressive transmission to both handheld device and another hospital where patient would be transferred if necessary. Flow control such as image query and retrieve, and image transmission can be performed on the handheld device. For more exact consultation, the JPEG2000 viewer also provides zoom-in function using JPEG2000 compression for ROI. The client workstation in remote site can receives the patient’s clinical images from server workstation directly by flow control and those images can be displayed on client system and stored into the PACS archive of remote hospital. Also, prototype system was designed with consideration of IHE integration profile of Patient Information Reconciliation (PIR) for emergency care. The system was evaluated by assessment of image quality displayed on handheld device with ROC analysis and Friedman test. Display time of JPEG2000 images on handheld device was measured to evaluate the performance of this system.

The results of ROC analysis indicated that the compression ratios up to 15:1 were very closer to original image although it was displayed on handheld device. The average of the display time was approximately 10.9 seconds for compressed 17”*14” CR images at ratio of 10:1. In case of 256*256 CT images, it was shorter than 1 second.

It may be an useful system when a emergency patient needs a exact consultation for treatment although medical specialist is not in hospital. Also, user can query and retrieve the patient’s images from PACS archive directly, and if necessary, transfer those images to remote another hospital with CDMA 1x EVDO based handheld device although they are not in hospital.

W.K.,K.Y.,B.J.,J.K.,D.H.,H.K.,S.Y.,H.Y.,H.J.: W.S Kang, K.H Yang, B.M Jang, J.I Kim, D.H Han, H.J Kim, S.K Yoo, and Haijo Jung work for development Center of Emergency Medical Informatics (CEMI), in Yonsei University. This study was supported by grant of the Korea Health 21 R&D Project, Ministry of Health & Welfare, Republic of Korea (02-PJ3-PG6-EV08-0001)

Kang, W, Yang, K, Jang, B, Kim, J, Han, D, Kim, H, Yoo, S, Yoo, H, Jung, H, et al, , Prototype Design of CDMA 1x EVDO-based Wireless Mobile Clinical Image Display and Flow Control System for Emergency Care.  Radiological Society of North America 2005 Scientific Assembly and Annual Meeting, November 27 - December 2, 2005 ,Chicago IL. http://archive.rsna.org/2005/4420130.html