Evaluation of the efficacy of 2- versus 3-dimensional computed tomography.
Simulated 3-dimensional (3-D) representation of computerized data is a valuable diagnostic tool in evaluation of tumors of the central nervous system. Several reports exist regarding the clinical value of 3-D imaging, but there is little objective evidence to quantify improved performance from the images. The purpose of this study was to quantify the efficacy of simulated 3-D versus 2-D image interpretation in a nonclinical model. A 3-tiered, 3-D model was constructed, and objects were placed in varied positions. CT was then performed on each of the models. Fifty-three subjects were shown the CT images and asked to reconstruct the model as depicted by either 2-D or simulated 3-D images. Performance between subject groups was different depending on clinical experience. In addition, it was found that the 3-D representation of data allowed for a significantly faster performance of the task of image interpretation and reconstruction of the model.
Franco
R A
RA
Department of Otolaryngology, State University of New York at Brooklyn, USA.
Fedok
F G
FG
Brown
D B
DB
Mamourian
A C
AC
D002983:Clinical Competence; D006801:Humans; D007091:Image Processing, Computer-Assisted / Q000295:instrumentation*; D010348:Patient Care Team; D019047:Phantoms, Imaging; D012680:Sensitivity and Specificity; D014057:Tomography, X-Ray Computed / Q000295:instrumentation*