Objectives: To evaluate the role of dual phase helical CT in the detection and characterization of renal masses. Materials and methods: A prospective study of twenty two patients was undertaken with CT to characterize indeterminate renal masses. In all patients, five mm thick contiguous sections were obtained from the kidneys before and after injection of intravenous contrast material in corticomedullary and nephrographic phases. Results: Renal neoplasms and normal renal cortex showed significantly greater enhancement in the nephrographic phase compared with that in corticomedullary phase (p=0.01). Renal veins are best visualised in corticomedullary phase and inferior vena cava is better visualized in nephrographic phase. Conclusion: Conspicuity of renal neoplasms is better in nephrographic phase compared to corticomedullary phase. Renal veins are best visualised in corticomedullary phase and inferior vena cava is better visualized in nephrographic phase. If dedicated renal CT is requested for a suspected renal mass, the helical scan series to be obtained are unenhanced, corticomedullary and nephrographic phase images.
|Number of pages||6|
|Journal||Indian Journal of Radiology and Imaging|
|Publication status||Published - 01-08-2004|
All Science Journal Classification (ASJC) codes
- Radiology Nuclear Medicine and imaging