高频超声与CT诊断喉癌的临床研究

Clinical study on diagnosis of laryngeal carcinoma by high frequency ultrasound and CT

目的探讨高频超声及CT对喉癌的诊断价值。方法对69例喉癌患者进行高频彩色多普勒超声和CT分型及分期,将超声诊断结果与CT、纤维喉镜及手术病理进行比较分析。结果超声与CT对喉癌分型准确率分别为94.2%及91.3%,均优于纤维喉镜(73.9%)。T分级超声准确率分别为T185.9%,T288.5%,T394.1%,T488.9%,T3高于CT(68.8%)和纤维喉镜(75.0%),T4高于纤维喉镜(66.7%)。超声检出淋巴结转移37例(53.6%),高于CT的19例(27.5%)。彩色多普勒血流显像喉癌内血流信号检出率为94.2%,多为低阻型动脉频谱。结论高频超声对喉癌分期的准确性高于纤维喉镜和CT检查,高频超声检查对喉癌治疗方案的选择和预后的判断有重要参考价值。

Objective To investigate the value of high frequency ultrasound and CT in the diagnosis of laryngeal carcinoma. Methods Sixty-nine cases of laryngeal carcinoma were typed and staged by high frequency ultrasound and CT, and compared with the results of laryngoscopy and postsurgical pathology. Results The typing accuracy was ~94.2 % for ultrasonography and ~91.3 % for CT, higher than that of laryngoscopy(~73.9 %).T staging accuracy of ultrasonography was T_1 ~85.9 %,T_2 ~88.5 %,T_3 ~94.1 % and T_4 ~88.9 %, higher than that of CT (~68.8 %) and laryngoscopy (~75.0 %) in T_3 stage and superior to laryngoscopy (~66.7 %) in T_4 stage. Lymph node metastases were found in 37 cases (~53.6 %) by ultrasonography, higher than those by CT scanning (~27.5 %). Color Doppler blood flow laryngeal carcinoma was shown in 65 cases(~94.2 %),most were low resistance spectrum pattern. Conclusions High frequency ultrasonography is superior to CT and laryngoscopy in the staging of laryngeal carcinoma and is of great value in choosing the therapeutical protocol.