Abstract：Objective: To discuss the application of 64-slice dynamic contrast-enhanced CT in adrenal adenoma, pheochromocytoma and adrenal metastatic tumor. Materials and Methods: 64 patients underwent Siemens Sensation 64-slice dynamic contrast-enhanced CT. CT features were analyzed and evaluated, including CT values in each phase, contrast absolute and relative washout rates. Results: There were 37 patients with adrenal adenomas, 17 with adrenal pheochromacytomas and 10 with adrenal metastatic tumors. CT values of adenoma were lower than that of pheochromacytoma in plain, arterial and venous phases respectively and that of metastatic tumor in plain, arterial and delayed phases respectively. The contrast washout rates of adenoma were higher than either that of pheochromacytoma or metastatic tumor. The CT value of pheochromacytoma in arterial phase was higher than that of metastatic tumor. Conclusion: 64-slice CT shows no difficulty in evaluating adrenal gland and its tumors; 64-slice dynamic contrast-enhanced CT of adrenal tumors can provide more evidence for the histological diagnosis by comparing different parameters.
2007, Vol. 18 
