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目的回顾性探讨PET/CT在检测直肠癌术后患者的分期,分析PET/CT对直肠癌术后骶前软组织肿块的诊断准确率,以及对放射治疗的指导作用。方法选择手术后直肠癌29例,在行放射治疗前行PET/CT检查,其结果分别与同期的CT结果相比较。结果29例中发现7例11处高代谢灶,骶骨前间隙3例,髂骨+腰椎1例,盆腔淋巴结+肝脏2例,腹膜后淋巴结+锁骨上淋巴结1例。结论PET/CT能够更准确地反映手术后直肠癌患者的病变范围,能够指导治疗方案的选择。
Objective To retrospectively investigate the staging of PET / CT in the detection of postoperative patients with rectal cancer and analyze the diagnostic accuracy of PET / CT in the diagnosis of presacral soft tissue mass after rectal cancer and the guidance of radiotherapy. Methods Twenty-nine patients with rectal cancer after surgery were examined with PET / CT before radiotherapy. The results were compared with those of the same period respectively. Results Of the 29 cases, 11 were found to be hypermetabolites in 11 cases, 3 were anterior sacral anterior sacral, 1 were iliac crest and lumbar vertebra, 2 pelvic lymph nodes and liver, 1 were retroperitoneal lymph nodes and supraclavicular lymph nodes. Conclusion PET / CT can more accurately reflect the extent of the disease in patients with rectal cancer after surgery, can guide the choice of treatment options.