Study Type – Diagnostic (exploratory cohort)
Level of Evidence 2b
What’s known on the subject? and What does the study add?
This article reviews what is currently known about diffusion weighted MRI (DW-MRI) in prostate cancer.
This mini-review concisely summarises, for clinical managing patients with prostate cancer, the clinical utility of diffusion weighted MRI.
• To review the clinical utility of diffusion-weighted magnetic resonance imaging (DW-MRI) in patients with prostate cancer.
MATERIAL AND METHODS
• The current literature on prostate cancer and DW-MRI was reviewed.
• DW-MRI can be readily acquired on a modern scanner with a short image acquisition time and no need for i.v. contrast medium.
• The image contrast is based on the diffusion of water molecules and thus reflects tissue cellularity.
• There is increasing evidence that DW- MRI improves the sensitivity and specificity of prostate cancer detection as well as the identification of tumour aggressiveness.
• DW-MRI is also showing substantial promise as a response biomarker for both local and metastatic disease
• DW-MRI is proving to be a useful adjunct to conventional T2-weighted MRI sequences.
• The eventual role of DW-MRI in combination with other MRI techniques for multiparametric assessment of prostate cancer needs to be defined further.