Assessment of Semiquantitative Parameters of Dynamic Contrast-Enhanced Perfusion MR Imaging in Differentiation of Subtypes of Renal Cell Carcinoma.

Background: To assess semiquantitative parameters of dynamic contrast-enhanced perfusion MR imaging (DCE) in differentiation of subtypes of renal cell carcinoma (RCC).

Material/methods: Prospective study conducted upon 34 patients (27 M, 7 F, aged 25-72 ys: mean 45 ys) with RCC. Abdominal dynamic contrast-enhanced gradient-recalled echo MR sequence after administration of gadopentetate dimeglumine was obtained.

Role of diffusion-weighted magnetic resonance imaging in characterization of renal tumors.

Objective: To evaluate the role of diffusion-weighted magnetic resonance (MR) imaging in the characterization of renal tumors.

Materials And Methods: Prospective study was conducted on 52 consecutive patients (24 males and 28 females) with renal tumor. They underwent diffusion-weighted echo planar MR imaging of the abdomen with b-factor of 0 and 800 seconds/mm².