Low-cost teleradiology for dentistry.
The performance of a low-cost teleradiology system was studied. The time needed for radiographic transmission between computers and the image integrity following transmission were measured. The image resolution was analyzed with a line-pair test chart. Images were transmitted through computers that had a video-processing board and a modem at both the transmission and receiving sites. Intraoral radiographs were captured with a black and white charge-coupled device camera. The time required for image transmission was less than 1 minute (46 to 56 seconds), an effective transmission speed of 1.73 kbyte/s (13.9 kbit/s). No changes were observed in pixel value distributions; hence, there was no loss of image detail. The maximal resolution of the system was 4 line-pairs/mm. The performance of the teleradiology system demonstrated its potential as an effective, low-cost telenetwork for dentistry.
Hayakawa
Y
Y
Division of Radiology and Imaging Sciences, University of Louisville, School of Dentistry, Kentucky 40292, USA.
Farman
A G
AG
Eraso
F E
FE
Kuroyanagi
K
K
D003936:Diagnosis, Computer-Assisted; D006801:Humans; D007091:Image Processing, Computer-Assisted; D011785:Quality Assurance, Health Care; D011861:Radiography, Dental / Q000191:economics / Q000379:methods*; D019112:Teleradiology / Q000191:economics / Q000379:methods*