Keywords:
Abdomen, Kidney, CT, MR, Comparative studies, Neoplasia, Abscess, Cysts
Authors:
S. Maurea, S. Capece, D. Baldari, C. Mollica, P. P. Mainenti, L. Camera, M. Salvatore; Naples/IT
DOI:
10.1594/ecr2013/C-0866
Results
The size data of renal masses measured on CT and MR images are illustrated in Table (Fig.1).
CT and MR showed comparable diagnostic accuracy for lesion identification and characterization with no statistically significant differences: CT/MR accuracy for lesion identification=100%/100%,
CT/MR accuracy for lesion differentiation between benign and malignant nature=95%/95%,
CT/MR accuracy for lesion margin features=95%/95%,
CT/MR accuracy for fat infiltration=82%/83%,
CT/MR accuracy for vascular invasion=95%/95%; only in a case of oncocytoma,
CT and MR were both inaccurate because the lesion was classified as malignant,
since post-contrast images demonstrated significant enhancement.
Figure 2 shows an example of CT and MR images in a case of benign renal mass.
Figure 3 shows an example of CT and MR images in a case of malignant renal mass.