Suspected local recurrence after radical prostatectomy: endorectal coil
We acknowledge that most centers have moved to 3.0T MRI, and that our practice of using 1.5T imaging without endorectal coil
appear unconventional, but we have published previous results in this domain that do not differ significantly from other series (1,2).
With the use of endorectal coil
, the MR sensitivity is increased and it has become at par with EUS.
Magnetic resonance imaging (MRI) of the prostate in combination with a dedicated endorectal coil
is a valid method for the visualisation of the prostate and its associated neoplasm.
All MRI examinations were performed on a 1,5T system Siemens MR ESPREE with the body and endorectal coil
placed in the lateral decubitus position of the patient.
Prostate carcinoma: assessment of diagnostic criteria for capsular penetration on endorectal coil
However, endorectal coil
MRI is becoming the modality of choice for persistent symptomatology .
Multiparametric MRI (mpMRI), incorporating morphologic T2-weighted imaging (T2WI), diffusion-weighted imaging (DWI), and dynamic contrast-enhanced (DCE) imaging of the prostate with high field strength (3 T) without an endorectal coil
, showed a prostatic mass invading the lower left portion of the bladder, the anterior rectal wall, and both obturator muscles (Figure 1).
The addition of an endorectal coil
(ERC) for data acquisition along with phased array surface coils improves the signal-to-noise ratio (SNR) and, thus, the localization and depiction of the prostate gland [22-25].
Two promising techniques are power color Doppler TRUSP (transrectal ultrasound of the prostate) and endorectal coil
The selection of therapy is especially important when there is a risk for stageT3 disease with extraglandular extension (EGE) (4) In these cases, MR imaging with an endorectal coil
can achieve positive predictive values between 85% and 97% for extracapsular extension (ECE) and seminal vesicle invasion (SVI), respectively.
MR (3 Tesla) without endorectal coil
consisted of axial T2w and DWI sequences for prostate and tumour delineation, and 3D-CISS sequence for optimal fiducial identification and CT-MR registration (see figure 1).