Editing Prostate Cancer: Diagnosis and evaluation (section)

====== <span style="color:#ff0000">Endorectal coil</span> ======
* '''Advantages'''
**'''<span style="color:#ff0000">Improves image resolution by increasing the SNR</span>''' 
***'''Standard clinical field strengths of 1.5T do not provide sufficient signal-to-noise ratio for clinical diagnosis of prostate cancer. To compensate for this deficiency, the use of surface and/or endorectal coil arrays has been proposed'''
***'''There is consensus regarding the use of a surface body coil and an endorectal coil at 1.5T but controversy remains regarding the need for an endorectal coil at 3T.'''
**** '''<span style="color:#ff0000">The highest signal-to-noise ratio (SNR) is achieved at 3T with an endorectal coil</span> but acceptable results can be achieved at 3T without an endorectal coil.'''
*Disadvantages
**Patient discomfort
**Additional time required for proper placement and verification
**Cost
**Deformation of the gland which may affect the image registration for targeted biopsy or radiation planning
***Concerns regarding alterations in prostate volume have largely been dispelled.