Development and evaluation of digital subtraction radiography computer program.
OBJECTIVE
We developed a new program for digital subtraction radiography (DSR) having useful functions to get the DSR image more accurately and efficiently. The purpose of this study was to evaluate the accuracy of the DSR image acquired using the new program as compared with the ready-made program.


METHODS
Four observers performed the DSR process using our program and the ready-made program for digital intraoral radiographs taken from incisor, premolar, and molar regions. The statistical difference was evaluated between the programs, between the observers, and between the regions.


RESULTS
The DSR image using our program was superior to that with the ready-made program in all the observers and all the radiographed regions. Also, there was the statistical difference among the observers, especially in our program.


CONCLUSIONS
The DSR image using the new program was very accurate compared with ready-made program, so the program was useful to get an accurate DSR image.
Department of Oral and Maxillofacial Radiology, BK21, and Dental Research Institute, College of Dentistry, Seoul National University, Korea.
Sam-Sun
SS
Lee
Young-June
YJ
Huh
Ki-Young
KY
Kim
Min-Suk
MS
Heo
Soon-Chul
SC
Choi
Jai-Young
JY
Koak
Seong-Joo
SJ
Heo
Chong-Hyun
CH
Han
Won-Jin
WJ
Yi
D006801:Humans; D015588:Observer Variation; D011856:Radiographic Image Enhancement / Q000379:methods; D019252:Radiography, Dental, Digital / Q000379:methods*; D012984:Software / Q000592:standards*; D013382:Subtraction Technique