99mTc-MDP SPECT/CT融合骨显像在恶性肿瘤骨转移诊断和治疗决策中的作用

摘要

目的:评价99mTc-MDP SPECT/CT融合骨显像在恶性肿瘤骨转移瘤的诊断和治疗决策确定中的作用.方法:回顾性分析2016年1月至2016年6月间行全身骨显像及SPECT/CT同机融合显像患者117例,对其中经病理和(或)3～9个月临床动态评估确诊的66例患者的结果(55例原发恶性肿瘤,11例原发良性骨病)进行分析,比较SPECT/CT同机融合显像与其他单纯解剖影像方法[CT和(或)MR]诊断骨转移瘤的效能差异和对治疗决策的影响.剔除病例包括广泛骨转移瘤和最后没有明确诊断的患者.结果:SPECT/CT融合显像诊断骨转移患者病例和骨转移病灶的灵敏性(90.62％,93.88％)、特异性(79.41％,89.47％)和准确性(84.84％,90.97％),单纯解剖影像学诊断方法的灵敏性(59.38％,51.02％)、特异度(94.11％,94.73％)和准确性(77.27％,79.86％),两者比较差异有统计学意义(P＜0.05).在改变治疗方案的比例比较中,SPECT/CT融合显像改变患者的治疗方案为30.31％,单纯解剖影像学方法为16.67％,两者比较,差异具有统计学意义(P＜0.05).结论:SPECT/CT同机融合显像可以提高骨转移瘤诊断准确性并对治疗方案的确立有重要作用.%Objective To evaluate the role of (99)Tc(m)-MDP SPECT/CT bone fusion imaging in diagnosis and treatment strategy establishment of patients with bone metastatic malignancy.Methods Retrospective study was carried out on 66 patients (55 patients with primary malignant tumors,11 patients with primary benign bone disease) chosen from 117 patients who had undergone whole body bone scintigraphy and SPECT/CT fusion imaging examination.Comparison was carried out on diagnostic efficacy for bone metastases and changes of treatment between SPECT/CT fusion imaging and other anatomical imaging (CT and/or MR).Cases excluded are extensive bone metastases and no final diagnosis of patients.Results For diagnosis of patient with bone metastasis and bone metastasis lesion,the sensitivity of SPECT/CT fusion imaging was (90.62％,93.88％),specificity (79.41％,89.47％) and accuracy (84.84％,90.97％),while sensitivity of simple anatomical imaging was (59.38％,51.02％),specificity (94.11％,94.73％) and accuracy (77.27％,79.86％),with a significant difference (P ＜ 0.05).SPECT/CT fusion imaging changed 30.31％ (20/66) the patient's treatment plan,while 16.67％ (11/66) for simple anatomical imaging,with a significant difference (P ＜ 0.05).Conclusions SPECT/CT fusion imaging could increase the accuracy of diagnosis of bone metastases and have an important role in establishing the treatment strategy.