Analysis of Vertebral Hemangiomas ’ Volume : A 1 Retrospective Study

28 Purpose: This study was carried out to analyze volumes and localization of vertebral 29 hemangiomas in T12-L5 levels on MRI in patients with low back pain. 30 Methods: Thoraco-lumbar MR images were examined retrospectively in a total of 150 31 patients. Hemangiomas observed in vertebral bodies on sagittal vertebral sections were 32 assessed and data were evaluated to get ratios regarding sex, vertebra and vertebral body 33 localizations. Volumetric estimates were performed in the sagittal plane images were 34 calculated using Cavalieri principle. 35 Results: Hemangiomas were observed in a total of 24 patients (16%) of whom 22 were 36 females. Two patients had two hemangiomas in different vertebral bodies. Localizations of 37 the hemangiomas were as follows: 6(23.08%), 6(23.08%), 3(11.54%), 6(23.08%), 3(11.54%), 38 and 2(7.69%) in T12-L5 vertebral bodies, respectively. Only 1(3.84%) hemangioma was in 39 central part. The remaining 7(26.92%) and 18(69.23%) of hemangiomas were in anterior and 40 posterior halves, respectively. The mean volumes of vertebral hemangiomas were 41 0.780±0.165, 1.018±0.210, 0.527±0.079, 2.282±1.333, 3.417±1.598, 0.910±0.070 cm 3 for 42 T12-L5 vertebral levels, respectively. Total mean volume of vertebral hemangiomas was 43 found 1.484±0.393cm 3 . 44 Conclusions: Certain volumetric discrepancies in radiological features exist in vertebral 45 hemangiomas. This study suggests the importance of localization, feature and volume of the 46 vertebral hemangiomas to understand the clinical symptoms and patient history better. 47 Key word: Vertebral body, hemangioma, MRI, volume. 48 49 50 PDF www.onlinedergi.com tarafndan birlestirilmistir.