![]() ![]() Recent technologic advances in MR imaging may affect these results. CONCLUSION: CT was more accurate than MR imaging in detection and characterization of transmural penetration of rectal tumors. The accuracy of MR imaging and of CT (85% for each) are better for evaluation of liver metastases lower sensitivities (62% and 70%, respectively) than specificities (97% and 94%, respectively) were demonstrated for both modalities. Desde su apertura en el año 1976 la unidad se ha caracterizado por su permanente innovación tecnológica. CT and MR imaging exhibited accuracies of 62% and 64% in assessment of lymph node involvement with sensitivities of 48% and 22%, respectively. El desarrollo tecnológico, el mejoramiento continuo de los procesos clínicos y administrativos y la capacitación continua del personal han posicionado a la Unidad de Imágenes Diagnósticas como uno de los principales centros de referencia de la ciudad y la región. Accuracies of CT and MR imaging were equivalent in depiction of transmural extent in colon cancers. RESULTS: In the staging of local extent of tumor, CT is more accurate than MR imaging, particularly in the definition of penetration of the muscularis propria by rectal cancer (74% vs 58%). The accuracy of each modality was assessed in a subset of 365 patients with primary tumors with respect to staging of local extent of tumor, status of local-regional lymph nodes, and the presence of liver metastases. Un medio de contraste radiopaco absorbe los rayos X y, por lo tanto, aparece de color blanco en las radiografías. MATERIALS AND METHODS: CT and MR studies were independently interpreted in a group of 478 patients with colorectal carcinoma in a study conducted from 1989 to 1993. El brazo de doble-ala exclusivo de Mindray ofrece un diseo flotante de. PURPOSE: To prospectively evaluate the relative accuracy of computed tomography (CT) and magnetic resonance (MR) imaging in the staging of colorectal carcinoma. agente de contraste y una sensibilidad ms elevada con la tecnologa UWN+. ![]()
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