[Comparative evaluation of six different body regions of the dog using analog and digital radiography].
In this study the quality of digital and analog radiography in dogs was compared. For this purpose, three conventional radiographs (varying in exposure) and three digital radiographs (varying in MUSI-contrast [MUSI = MUlti Scale Image Contrast], the main post-processing parameter) of six different body regions of the dog were evaluated (thorax, abdomen, skull, femur, hip joints, elbow). The quality of the radiographs was evaluated by eight veterinary specialists familiar with radiographic images using a questionnaire based on details of each body region significant in obtaining a radiographic diagnosis. In the first part of the study the overall quality of the radiographs was evaluated. Within one region, 89.5% (43/48) chose a digital radiograph as the best image. Divided into analog and digital groups, the digital image with the highest MUSI-contrast was most often considered the best, while the analog image considered the best varied between the one with the medium and the one with the longest exposure time. In the second part of the study, each image was rated for the visibility of specific, diagnostically important details. After summarisation of the scores for each criterion, divided into analog and digital imaging, the digital images were rated considerably superior to conventional images. The results of image comparison revealed that digital radiographs showed better image detail than radiographs taken with the analog technique in all six areas of the body.
Klinik für Kleintiere, Stiftung Tierärztliche Hochschule Hannover. andrea.meyer-lindenberg@tiho-hannover.de
Andrea
A
Meyer-Lindenberg
Christine
C
Ebermaier
Pim
P
Wolvekamp
Bernd
B
Tellhelm
Freek J
FJ
Meutstege
Johann
J
Lang
Klaus
K
Hartung
Michael
M
Fehr
Ingo
I
Nolte
D000818:Animals; D004283:Dog Diseases / Q000000981:diagnostic imaging*; D004285:Dogs / Q000033:anatomy & histology*; D004551:Elbow Joint / Q000000981:diagnostic imaging; D005269:Femur / Q000000981:diagnostic imaging; D006621:Hip Joint / Q000000981:diagnostic imaging; D006801:Humans; D015588:Observer Variation; D011856:Radiographic Image Enhancement / Q000295:instrumentation / Q000379:methods / Q000592:standards*; D011859:Radiography / Q000295:instrumentation / Q000379:methods / Q000592:standards / Q000662:veterinary*; D011860:Radiography, Abdominal / Q000592:standards / Q000662:veterinary; D013902:Radiography, Thoracic / Q000592:standards / Q000662:veterinary; D012886:Skull / Q000000981:diagnostic imaging