Journal of Ultrasound in Medicine, Vol 4, Issue 1 1-5, Copyright © 1985 by American Institute of Ultrasound in Medicine
Transrectal prostatic ultrasonography: comparison of linear array and radial scanners
M. D. Rifkin
Transrectal ultrasound probes can image the prostate only in a single
plane. A retrospective study was undertaken to evaluate the capabilities
and differences of longitudinal and transversely oriented images obtained
from transrectal sonographic examinations. The patients were studied by
both modalities using commercially available machines. Comparisons of the
images demonstrated that the transverse image yielded more information
about the lateral margins of the prostate; the longitudinal image showed
the apex and base more clearly; prostatic calculi, which can be confused
with other pathologic processes, were more accurately identified by the
longitudinal scanners; and both techniques adequately demonstrated the
abnormality, particularly cancer, although some lesions were seen better on
either one or the other orientation. Either scanner can be used for a
satisfactory study, but both methods may have to be utilized to conduct a
thorough evaluation of the prostate and surrounding structures.
