To the Editor.
— The article cited by Dr Palmer in CONTEMPO '87,1 from which apparently stems his opinion that ultrasound examination "appears to be of little use in the diagnosis of early cancer," was accepted for publication in December 1984, more than three years ago. Since that time, there have been dramatic improvements in the instruments with which these examinations are currently performed. Better visualization of the prostate is now possible with the use of transducers that are of higher frequency (7.0 MHz) than those in older equipment. In addition, biplane imaging, which permits examination of the prostate in an unlimited number of both transaxial and sagittal views, far surpasses the imaging possible with the older equipment, which allowed only transaxial visualization at sequential cuts of 5 mm.A detection rate of "only 71%" by prostate ultrasonography is far from disappointing. The inaccuracy of rectal examination of the
Cooner WH. Ultrasound in Prostatic Cancer. JAMA. 1988;259(7):1015. doi:10.1001/jama.1988.03720070021019