论文部分内容阅读
目的 探讨 1 8F- FDG SPECT/ CT同机融合显像在原发性肝癌术后随访中的临床价值。方法 对 2 0例原发性肝细胞癌术后随访患者同期进行 CT(MR)及 FDG- SPECT/ CT检查 ,并对结果进行对比分析。结果 经病理及临床确诊的 15例术后复发患者中有 12例表现为明显形态学改变及增强表现而明确诊断 ,但有 3例 CT或MR显示不规则或结节状不明显强化 ,不能准确作出术后改变或术后复发的诊断 ,而呈假阴性 ;而 FDG显像中有14例均表现为局部 FDG明显浓集而明确诊断 ,仅 1例出现假阴性。 5例未复发者中 CT(MR)有 2例为假阳性 ;而FDG显像无 1例假阳性。 CT(MR)和 FDG诊断的灵敏度及特异性分别为 80 .0 % (12 / 15 )、6 0 .0 % (3/ 5 )及 93.3%(14 / 15 )、10 0 .0 % (5 / 5 )。结论 FDG显像对肝癌术后复发及转移的定性诊断具有明显的优势 ;SPECT/ CT同机融合显像能准确定位复发病灶的解剖和功能信息
Objective To investigate the clinical value of 18F-FDG SPECT / CT fusion imaging in the postoperative follow-up of primary liver cancer. Methods CT (MR) and FDG-SPECT / CT examination of 20 patients with primary hepatocellular carcinoma after follow-up were performed in the same period. The results were compared and analyzed. Results The pathological and clinical diagnosis of 15 cases of postoperative recurrence in 12 patients showed obvious morphological changes and enhanced performance and a clear diagnosis, but 3 cases of CT or MR showed irregular or nodular enhancement was not obvious, not accurate Made a diagnosis of postoperative changes or postoperative recurrence, and was false negative; and FDG imaging in 14 cases showed a clear concentration of local FDG and definite diagnosis, only 1 case of false negative. In 5 cases of non-relapse, 2 cases of CT (MR) were false positive, while none of FDG imaging was false positive. The sensitivity and specificity of CT (MR) and FDG imaging were 80.0% (12/15), 60.0% (3/5), 93.3% (14/15) and 100.0% (5) / 5). Conclusions FDG imaging has obvious advantages for the qualitative diagnosis of recurrence and metastasis of liver cancer. SPECT / CT fusion imaging can accurately locate the anatomical and functional information of recurrent lesions