Objective To explore the value of enhanced CT histogram in the differential diagnosis of adrenocortical adenoma and pheochromocytoma.Methods The imaging data of 76 patients with adrenocortical adenoma and pheochromocytoma confirmed by surgical pathology were retrospectively analyzed.Image J software was used to manually outline the largest tumor layer of the adrenal tumor in dual-phase enhanced CT,The histogram parameters of the arterial phase and equilibrium phase were obtained and compared,and the ROC curve was used to evaluate the differential diagnosis value of the two groups of tumors.Results The average gray value,standard deviation,minimum value,maximum value,median,and skewness of the histogram parameters in the enhanced CT arterial phase and equilibrium phase of adrenal pheochromocytoma were significantly higher than those of glandular cortical adenoma(P＜0.05).In contrast-enhanced CT arterial phase and equilibrium phase histogram parameters,the area under the AUC curve of the maximum value is the largest,the optimal threshold is 126.500,and the sensitivity and specificity are 81.5％and 91.8％,respectively,which has high diagnostic efficiency.Conclusion Enhanced CT histogram parameters can be used in the differential diagnosis of adrenocortical adenoma and pheochromocytoma,and the diagnostic efficiency of"maximum value"is the best.
维普
万方数据