Preoperative staging of renal cell carcinoma with inferior vena cava thrombus using multidetector CT and MRI: prospective study with histopathological correlation.

摘要: Objective To evaluate the accuracy of multidetector computed tomography (CT) and magnetic resonance imaging (MRI) in staging estimating renal carcinomas with caval thrombus. Methods Initially, 23 patients suspected thrombi were admitted into this prospective study. Triphasic CT was performed using a reconstructed slice thickness 2 mm. 3D reconstructions used to improve surgical planning. MRI protocol included: transversal T1-weighted GE sequence without Gd-DTPA, T2-weighted respiratory-gated TSE, coronal Gd-DTPA fat saturation. In addition, multiphase angiography after injection. Patients divided 3 groups: thrombus below insertion hepatic veins, within intrahepatic vena cava, intra-atrial extension. The results tumor extension independent readers correlated histopathological staging. Results Of admitted, MR scans 14/13 respectively workup. detection sensitivity specificity for both 0.93 0.8 respectively. 1.0/0.85 0.75. Readers I II evaluated uppermost cranial by MRI. 78% 72%, 88% 76% Conclusion cases thrombus, showed similar results. Consequently, these modalities can be assess