[automatically translated] educational objectives. Illustrate the morphological and functional findings of CaP, MRI imaging. Introduction. MRI is a key method in the study of CaP; besides morphological imaging, it allows important functional acquisitions that increase its diagnostic performance. exam technique. MR imaging of the prostate provides t1 axial sequences, axial, coronal and sagittal T2, DWI, spectroscopic sequences and perfusion sequences (GE T1w 3d fat-sat). In the prostate T1 has intensity of the mean-homogeneous low signal, without the possibility of distinction of the anatomy area and glandular or identification of any CaP. These sequences allow the display of any blood residues post-gland biopsy and interface / periprostatic adipose tissue. The T2-weighted sequences provide an evaluation zonal anatomy of the prostate with hyperintense peripheral zone (PZ) relative to the central area (GC). The CaP is present as hypointense area in the context of normal ZP. In the sequences perfusion CaP shows intense uptake (wash-in) with early decommissioning later (washout) of the contrast medium, the better behavior visible by developing curves time / intensity that show a different morphology compared to healthy tissue . DWI sequences in the lower diffusivity of water molecules in CaP manifests as iperintensitànelle DWI and ADC maps with hypointensity images in ADC value <1.24. Spectroscopy Allows to a metabolic evaluation of the prostate: CaP shows increase of Choline (Cho) and creatine (Cr) with reduction of citrate (Ci) which is reflected in an increase in Cho + Cr / Ci ratio value. Conclusions. MRI has a major role in the identification, localization, staging locoregional and follow-up of patients with CaP.
|Number of pages||1|
|Publication status||Published - 2014|