Ultrasound of prostate cancer

Transrectal ultrasound now plays a central part in the diagnosis of prostat e cancer. The role of ultrasound in prostate cancer diagnosis is to guide a ccurate biopsy, and current practice favours a systematic biopsy approach r ather than targeted biopsy of focal abnormalities. The role of colour and p ower Doppler and sonographic contrast agents in prostate cancer diagnosis i s still under evaluation, but these techniques may have a role in the asses sment of the prognosis of an individual cancer.