Prostate MRI Health
Prostate MRI Health Prostate MRI Health Prostate MRI Health Prostate MRI Health



 

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Don't Trust the TRUS.

The TRUS biopsy which is a 12 needle biopsy, is currently considered the standard technique urologists prescribe to evaluate prostate cancer with patients who have an elevated PSA; but why suffer through a 12 needle biopsy that only reaches the transitional zone and part of the peripheral, when you can have an MRI-Guided biopsy which is not only more accurate but only requires 1 needle?

Figure 1 which was derived from a study done by the Department of Radiology at the University Medical Center St. Radboud in Nijmegen shows that even after 3 TRUS biopsies (36 needles in total) which all came out negative weren't truthful. With one MRI the radiologist was able to prove that the patient had a Gleason score of 8 meaning the patient had Prostate Cancer.

 

Comparison

Prostate MRI vs Trans-rectal Ultrasound

Over time the most common referral from a urologist after noticing an elevated PSA level has been the trans-rectal ultrasound, better known as Trus. The Trus is an invasive procedure where a lubricated ultrasound probe is placed in the patient's rectum with the hope of receiving certain echoes which insinuate there is cancer present. What is important to remember is that the Trus locates some not all of the tumor found during the digital rectal exam.

The Multi Parametric MRI is a non invasive procedure where the patient is injected with a substance called Glucagon (unless you are diabetic) and scanned for approximately an hour and a half. The MRI focuses on a handful of sequences such as the Diffusion Weighted Images [DWI] and ADC MAP for calculated B- Values, as well as T2-Weighted imaging.