Title: Value of Radiological Imaging on Detecting Bone Metastasis in Pediatric Neuroblastoma
Abstract: Purpose:To compare the diagnostic value of X-ray computed tomography(CT) and magnetic resonance image(MRI) on detecting bone metastasis in pediatric neuroblastoma.Methods: Forty seven neuroblastoma with bone metastasis cases were evaluated and analyzed respectively on plain X-ray,CT and MRI.Results:In all the 47 cases with bone metastases,89.2% metastatic lesions were located in long tubular bones,iliac,cranium and vertebrae.Morphologically,the percentages of osteolytic and mixed pattern were 71.4% and 28.6% respectively,there was no sclerotic pattern in all the 47 cases.The features on plain X-ray and CT were moth-eaten,irregular and tiny lesions,part of the cases were with peripheral sclerosis or periosteal reactions.CT showed more tiny changes at cranium,vertebra and pelvis.It was low signal intensity on T1WI,high signal intensity on T2WI.The MR images showed the infiltration earlier and further than CT.Conclusions:X-ray is mainly used for detecting bone metastasis in pediatric neuroblastoma,which especially demonstrates the lesions in long tubular bones.CT provides a detailed image,particularly in cranium,vertebra and pelvis.MRI is used for detecting bone marrow and intraspinal metastasis at an earlier stage.
Publication Year: 2011
Publication Date: 2011-01-01
Language: en
Type: article
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