Indian Journal of Radiology Indian Journal of Radiology  

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MUSCULOSKELETAL Table of Contents   
Year : 2006  |  Volume : 16  |  Issue : 4  |  Page : 611-618
Evaluation of bone tumors with magnetic resonance imaging and correlation with surgical and gross pathological findings


Department Of Radiology,G.B Pant Hospital And Maulana Azad Medical College, Delhi University, New Delhi, India

Correspondence Address:
S Baweja
E 1/137 Arera Colony Bhopal ,Mp ,Pin 462016
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/0971-3026.32282

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Objectives: The purpose of this study is to evaluate the role of MRI in cases of bone tumors.To determine the MRI characteristics of different primary bone tumors.Correlate and compare imaging findings with surgical and gross pathological findings whereever possible. Materials and methods: Twenty five patients (either suspected or proven cases of bone tumors) were included in this study.All patients were first evaluated with plain film examination. MRI was performed on a 1.5 Tesla Philips system (Gyroscan). Sequences and planes used were T1W and STIR sequence in coronal plane using body coil followed by T1W and T2W sequences in axial plane supplemented by sagittal and coronal planes using surface coil , second plane of imaging included STIR sequence and post contrast fat sat T1W images . Results : Sensitivity and specificity of MRI in detecting marrow involvement was 100%.MRI detected neurovascular bundle involvement with sensitivity, specificity, positive predictive value and negative predictive value of 100%, 92.8%, 75% and 100% respectively.MRI detected joint involvement with sensitivity, specificity, positive predictive value and negative predictive value of 100%, 86%, 50% and 100% respectively.MRI detected cortical break with sensitivity, specificity, positive predictive value and negative predictive value of 100%, 50%, 80% and 100% respectively. Although MRI could demonstrate different components of tumor, there was no difference in signal intensity patterns of different histological types of tumors. Conclusions : MRI is the preferred modality to image musculoskeletal tumors and should be obtained after radiographic evaluation. Its multiplanar imaging capability helps delineation of tumor and its extent in bone and soft tissues with high contrast resolution.It is an excellent modality to determine neurovascular bundle involvement ,joint involvement,local extent and staging.


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