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Preoperative MRI may reduce risk of nerve damage in prostate cancer surgeries
Date:1/23/2012

OAK BROOK, Ill. Preoperative MRI helps surgeons make more informed decisions about nerve-sparing procedures in men with prostate cancer, according to a new study published online in the journal Radiology.

Excluding skin cancer, prostate cancer is the most common cancer diagnosed in American men, according to the Centers for Disease Control and Prevention. Open radical prostatectomy, or removal of the prostate, is a common treatment for the disease, but it carries substantial risks, including incontinence and impotence.

"I think preoperative MRI will be useful for surgeons who are uncertain whether to spare or resect the nerves," said Daniel J. A. Margolis, M.D., assistant professor of radiology at the David Geffen School of Medicine at the University of California Los Angeles. "Our surgeons feel that, compared with clinical information alone, MRI is worthwhile for all patients, because it identifies important information leading to a change in the surgical plan in almost a third of patients."

Robotic-assisted laparoscopic prostatectomy (RALP) is a newer treatment performed with the assistance of a surgical robot. RALP uses smaller incisions than those of open radical prostatectomy and offers improved cosmetic results, less blood loss and briefer postoperative convalescence. However, surgeons performing RALP lack tactile feedback, which may compromise their ability to evaluate neurovascular bundlesthe collections of blood vessels and nerves that course alongside prostate. An aggressive surgical approach could unnecessarily damage the bundles and leave patients with loss of function, while an approach that is not aggressive enough may leave some cancer behind. There are no conventional preoperative urological techniques that provide information to take the place of tactile feedback.

Dr. Margolis and colleagues investigated endorectal coil MR imaging as a way to improve preoperative assessment of prostate cancer and th
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Contact: Linda Brooks
lbrooks@rsna.org
630-590-7762
Radiological Society of North America
Source:Eurekalert

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