Abstract Objective To investigate the application value of spectral CT imaging in the differential diagnosis of parotid basal cell adenoma (BCA) and pleomorphic adenoma (PA). Methods A total of 37 cases of parotid BCA and PA diagnosed pathologically in the Foshan First People’s Hospital, Guangdong Province from October 2018 to August 2021 were collected, including 17 cases in BCA group and 20 cases in PA group. All patients underwent maxillofacial plain and dual-phase enhanced energy spectral scans using Discovery CT scanner, the iodine concentration (IC), monochromatic CT value of 40, 70, 100 keV, and 140 keV were measured and recorded respectively, and the spectral curve slope were obtained; the differential diagnosis of BCA and PA was evaluated by receiver operating characteristic curve. Results There was statistical significance in tumor morphology of two groups (P＜0.05). In arterial stage, monochromatic CT value of 40 keV, spectral curve slope K1 and IC in BCA group were higher than those in PA group, and the differences were statistically significant (P＜0.05); in venous stage, monochromatic CT values of 40, 70 keV, spectral curve slope K1, K2, and K3, and IC in BCA group were higher than those in PA group, and the differences were statistically significant (P＜0.05). The cut-off value of arterial stage spectral curve slope K1 for the diagnosis of BCA and PA was 1.19, the area under the curve was 0.994, the sensitivity was 94.1%, and the specificity was 100%. Conclusion The use of spectral CT imaging technology can effectively differentiate the diagnosis of BCA and PA, and provide an important reference for clinical.
LUO Bing LIN Jingxing GUO Li ZHANG Lili ZENG Chenglong PAN Aizhen XU Zhifeng▲. Application value of spectral CT imaging in the differential diagnosis of parotid basal cell adenoma and pleomorphic adenoma[J]. 中国医药导报, 2023, 20(13): 148-151.
