Invivo - Education & Training

Prostate Cancer

What to Expect from the MR Imaging Process and DynaTRIM Procedure

Diagnostic MR Imaging Process:
An MRI is a non-invasive and painless medical procedure used to produce accurate, detailed pictures of organs and tissues to diagnose a variety of medical conditions. When receiving an MRI, patients are positioned on a moveable examination table, and in some cases, straps and bolsters are used to help patients remain still and in the correct position during imaging. Small devices that contain coils capable of sending and receiving radio waves, may then be placed around or adjacent to the area of the body that is being studied.

The patient is then moved into the magnet of the MRI unit. The radiologist and the technologist will leave the room while the MRI examination is performed on the patient. When the examination is completed, patients may be asked to wait until the technologist or radiologist checks the images, in the event additional images are required.

MRI exams generally include multiple runs (sequences), some of which may last several minutes. The entire exam is usually completed in 15-45 minutes.

Prostate Biopsy Overview (DynaTRIM Procedure):
A prostate biopsy is a process where multiple small tissue samples are taken from the prostate for evaluation by a pathologist (doctors who examine tissue under the microscope). MRI technology is used to guide the biopsy needle and samples are then taken that reflect each of the different zones of the prostate.

The DynaTRIM prostate biopsy procedure typically takes less than one hour and an oral or IV sedative medication may be given before the procedure to help a patient who is very anxious.

The procedure begins by placing the patient lying face down on the MRI table. MR images are taken a few times, an MRI probe is adjusted to find a specific area, and then a small needle is then gently placed approximately 3-4 inches into the rectum. Mainly patients will hear a click or a snap sound for each biopsy and feel a little pinch.

The amount of biopsy samples taken will depend on the decision of each radiologist, the patient's anatomy, and possibly on whether a prostate biopsy has been done in the past.

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For more information visit
	UsToo.org	American Cancer Society

References
^{1* American Cancer Society (www.cancer.org)
2** Us TOO International, Inc. (www.ustoo.org)
3*** The Journal of Urology (R) Vol 183. 520-528, February 2010
4**** Radiological Society of North America, Inc. (www.radiologyinfo.org}