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目的 评价 1 31 I-间位碘卞胍 (1 31 I- MIBG)显像对嗜铬细胞瘤的诊断价值。方法 观察2 1例经病理证实为嗜铬细胞瘤患者的 B超、CT、尿香草基杏仁酸 (VMA)和 1 31 I- MIBG显像结果 ,并与病理结果进行回顾性对照分析。结果 B超、CT、尿 VMA对嗜铬细胞瘤的检出率分别为81%、90 .5 %和 6 8.4% ,1 31 I- MIBG显像对嗜铬细胞瘤的检出率达 10 0 % ,1 31 I- MIBG显像的敏感性、特异性和准确性最高。结论 B超和 CT未发现病变 ,疑有肿瘤异位时 1 31 I- MIBG显像是诊断嗜铬细胞瘤的首选检查方法
Objective To evaluate the diagnostic value of 1 31 I-meta-position iodine (1 31 I-MIBG) imaging in pheochromocytoma. Methods A total of 21 patients with pathologically confirmed pheochromocytoma were enrolled in this study. The results of B-ultrasonography, CT, urinary vanillyl-marine (VMA) and 131I-MIBG imaging were retrospectively analyzed. Results The detection rates of B-ultrasonography, CT, and urinary VMA for pheochromocytoma were 81%, 90.5 %, and 68.4 %, respectively. The detection rate of pheochromocytomas by 311 I-MIBG imaging was 10 0. % ,1 31 I-MIBG imaging has the highest sensitivity, specificity and accuracy. Conclusions B-ultrasonography and CT have not been found to be pathological. 1 31 I-MIBG imaging is the preferred method for the diagnosis of pheochromocytoma when ectopic tumors are suspected.