endorectal coil

endorectal coil

(en″dō-rek′tăl) [ endo- + rectal]
A magnetic resonance imaging enhancement device placed inside the rectum, and used to evaluate pelvic and perirectal masses and malignancies.
References in periodicals archive ?
Prostate carcinoma: assessment of diagnostic criteria for capsular penetration on endorectal coil MR images.
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).
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).
To evaluate the accuracy of Magnetic Resonance Imaging and Magnetic Resonance Spectroscopic imaging by pelvic phased array coil in the detection of prostatic carcinoma in men with elevated PSA levels in comparison to previous studies on endorectal coil.
Two promising techniques are power color Doppler TRUSP (transrectal ultrasound of the prostate) and endorectal coil MRI.
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.
The prostate can be well visualized using an endorectal coil combined with a pelvic phased-array coil at 1.
MpMRI was obtained using a 3-Tesla scanner and a multi-phased array body surface coil without an endorectal coil.
5T or Siemens, MAGNETOM, Verio 3T) using a 4-channel phased-array surface coil coupled to an endorectal coil, to aid tumour localization.
5T endorectal coil MRI in detecting ECE have shown a wide range of sensitivity and specificity, between 13% and 95% and 49% and 97%, respectively.
The patient underwent multiparametric 3T MRI (Siemens, MAGNETOM, Verio 3T) with an endorectal coil, followed by a confirmatory transrectal ultrasound (TRUS)-guided extended (16 cores) mapping biopsy (regular 12 cores + 2 peri-urethral samples in each half of the gland at the level of base and the mid-gland).