核素骨显像与MRI诊断脊柱转移瘤的对比观察

A comparative study of bone scintigraphy and MRI in diagnosing spinal metastases

目的比较核素骨显像与MRI对脊柱转移瘤的诊断价值。方法对56例经病理证实其原发病灶为恶性肿瘤的脊柱转移瘤患者行骨显像与MRI检查,将脊柱分为颈椎、胸椎、腰椎和骶椎4部分,以椎体数为单位,比较两种方法对病变的检出情况;结果骨显像与MRI阳性病例检出率分别为94.6%(53/56)和91.1%(51/56)(P>0.05),阳性病灶数检出率为24.1%(338/1400)和22.1%(309/1400)(P<0.01),骨显像优于MRI,尤在胸腰椎明显,两者阳性病灶相符率为94.1%(1317/1400),有比较好的一致性。结论骨显像较MRI能更敏感地检出脊柱转移瘤,可作为恶性肿瘤骨转移的首选检查方法。

Objective The comparative study value about bone scintigraphy an d MRI in evaluating spinal metastases. Methods In total 56 patients with spinal me tastases recieved bone scintigraphy and MRI. All patients was confirmed by patho logy. In order to compare the sensitivities of the two methods, the spine was di vided into 4 portions: cervical spine, thoracic spine, lumbar spine and sacral s pine, where the involved vertebrae was counted seperately. Results The postive r ates of scintigraphy and MRI were 94.6%(53/56) and 91.1%(51/56) respectively i n determining spinal metastases(P > 0.05), and 24.1%(338/1400) and 22.1%(309/1 400 ) in assessment of individual lesions (P < 0.01), indicating that bone scint igraphy is superior to MRI, especially in the evaluation of the lesions of thora co-lumbal spine. There was a good accordance (1317/1400) between both modalitie s. Conclusion Compared to MRI, bone scintigraphy has the better sensitivity in d etecting spinal metastatic tumor, may be recommanded as the first choice of imag ing examination for diagnosis of malignant tumor.