How does endorectal MRI, PET-CT and transrectal ultrasound contribute to diagnosis and management of localized prostate cancer.

We analyze the main imaging techniques (transrectal ultrasound, Magnetic Resonance Imaging and Position Emission Tomography) that are currently used in the diagnosis and management of localised prostate cancer patients. We analyze the results that may be obtained with transrectal US and describe the latest advances in this technique (Doppler, power doppler and contrast media). With Magnetic Resonance Imaging, we describe the underlying principles, results and indications as well as some new applications (diffusion, perfusion, spectroscopy and the use of lymphotrophic nanoparticles).

Biocompatibility, inflammatory response, and recannalization characteristics of nonradioactive resin microspheres: histological findings.

Intra-arterial radiotherapy with yttrium-90 microspheres (radioembolization) is a therapeutic procedure exclusively applied to the liver that allows the direct delivery of high-dose radiation to liver tumors, by means of endovascular catheters, selectively placed within the tumor vasculature. The aim of the study was to describe the distribution of spheres within the precapillaries, inflammatory response, and recannalization characteristics after embolization with nonradioactive resin microspheres in the kidney and liver. We performed a partial embolization of the liver and kidney vessels in nine white pigs.