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利用I标记的抗癌胚抗原单克隆抗体对7例怀疑有消化系统肿瘤.但CT、B超、钡灌肠检查均为阴性的病人进行了放射免疫显像研究,单光子发射断层采集影像.并利用Tc标记的亚甲基二磷酸盐显像骨骼及膀胱作为背景显像7例病人中有6例的显像结果经手术或活检组织学证实。阳性准确率为6/7。研究结果显示放射免疫显像可以作为一个准确,灵敏,简单而无创伤的检查手段。
Using I-labeled anti-carcinoembryonic antigen monoclonal antibody, seven patients with suspected digestive system tumors but CT, B-mode ultrasound, and barium enema examinations were performed with radioimmunoimaging and single-photon emission tomography. Imaging of bone and bladder using Tc-labeled methylene bisphosphonate as a background image The imaging results of 6 of the 7 patients were confirmed by surgery or biopsy. The positive accuracy rate is 6/7. The results of the study showed that radioimmunoimaging can be used as an accurate, sensitive, simple and non-invasive method.