ROC-study of a teleradiology workstation versus film readings.
OBJECTIVE
We have used receiver operating characteristic (ROC) analysis to compare screen assessment of digitized radiographic films transmitted by a teleradiology system, with evaluation of the original radiographs on film.


METHODS
The material contained 120 cases (about 50% with selected pathology) that were difficult to diagnose. Four radiologists each evaluated half of the cases on film, and half on computer screen. The screen display was 1024 x 836 pixels with 8 bits/pixel.


RESULTS
We found the accuracy and sensitivity of the teleradiology system to be clearly inferior to film evaluation.


CONCLUSIONS
Improvement is needed both in the teleradiology system, and in the training of radiologists to work on the electronic workstation.
Størmer
J
J
Department of Radiology, University Hospital of Tromsø, Norway.
Bolle
S R
SR
Sund
T
T
Weller
G E
GE
Gitlin
J N
JN
D015142:Baltimore; D001842:Bone and Bones / Q000000981:diagnostic imaging; D005188:False Negative Reactions; D005189:False Positive Reactions; D006801:Humans; D009664:Norway; D012372:ROC Curve; D011856:Radiographic Image Enhancement / Q000295:instrumentation; D011860:Radiography, Abdominal; D013902:Radiography, Thoracic; D019112:Teleradiology / Q000295:instrumentation* / Q000706:statistics & numerical data; D014962:X-Ray Film / Q000706:statistics & numerical data