Three-dimensional US and volumetric assessment of the prostate.
The authors demonstrate a method for constructing three-dimensional (3D) images of the prostate based on standard two-dimensional ultrasonic (US) images. Transverse US images of the prostate in six patients (aged 61-83 years) and 10 water-filled balloon phantoms were recorded at video rates by manually withdrawing a biplane transrectal probe at a constant speed. Data acquisition time of the images was less than a minute. Typically, 50-70 scans of 0.2-0.5-mm-thick cross sections were acquired. Postprocessing of these data enabled lifelike 3D visualization of the gland and accurate measurement of its volume.
Sehgal
C M
CM
Department of Radiology, Hospital of the University of Pennsylvania, Philadelphia 19104.
Broderick
G A
GA
Whittington
R
R
Gorniak
R J
RJ
Arger
P H
PH
D000368:Aged; D000369:Aged, 80 and over; D006801:Humans; D007091:Image Processing, Computer-Assisted; D008297:Male; D008875:Middle Aged; D008961:Models, Structural; D011467:Prostate / Q000033:anatomy & histology / Q000000981:diagnostic imaging*; D014463:Ultrasonography