目的:探讨岩下窦采样在cush ing综合征鉴别诊断中的作用。方法:对32例确诊为cush ing综合征的患者行M R I和IPSS检查,分别计算他们的阳性率,并比较他们的检查价值。结果:M R I检查阳性率为61.54%,IPSS检查阳性率为93.75%,两者比较诊断准确率差异性明显。结论:IPSS在cush ing综合征鉴别诊断中是一种可行的、准确率高的检查方法。 Objective: To explore the role of petrosal sinus sampling in the differential diagnosis of Cushings syndrome. METHODS: Thirty-two patients with clinically diagnosed cushings syndrome were examined for M R I and IPSS, and their positive rates were calculated and their diagnostic values ​​were compared. Results: The positive rate of M R I was 61.54%, and the positive rate of IPSS was 93.75%. The difference between the two was significant. Conclusion: IPSS is a feasible and accurate method for the differential diagnosis of cush ing syndrome.