The Value of Diffusion Weighted Magnetic Resonance Imaging in Differentiating Atypical Vertebral Haemangiomas from Metastatic Lesions | ||
| Iraqi Postgraduate Medical Journal | ||
| Article 1, Volume 15, Issue 3, September 2016, Pages 272-278 PDF (0 K) | ||
| Authors | ||
| Mohammed Abd Kadhim; Thaair A. Kameel Alkhuzaie; Kirmanj Ismaiel Baker | ||
| Abstract | ||
| ABSTRACT: BACKGROUND: Atypical vertebral hemangioma and metastatic spinal lesions share many MRI signal intensity and appearance in common ,thats why differentiation between them is crucial. For two decades, diffusion-weighted imaging (DWI) has been applied to the evaluation of intracranial diseases, but DWI technical advancement make it possible to apply for assessment of extra cranial sites, including vertebral column. OBJECTIVE: The goal of our study is to assess the value of diffusion weighted MRI imaging in differentiating vertebral atypical hemangiomas from metastatic lesions. PATIENTS AND METHODS: A prospective cross-sectional study was employed at AL-Imammain AL-Khadymain Medical city in Baghdad health directorate, (43)patients with total (65) vertebral lesions grouped into three groups Group(A) 10 patients (23.2%)with total (15) lesions of vertebral typical hemangiomas, Group(B) 13 patients (30.3%) with total ( 13) lesions of vertebral atypical hemangiomas and Group (C) 20 patients(46.5%) with total ( 37) lesions of spinal vertebral metastases . MRI was done for all patients (including T1, T2, T1 fat suppression with IV contrast administration (when needed) and DWI). Complementary non contrast CT was also done. RESULTS: Total study sample were (43) patients with total (65) lesions, with (29/43) females and (14/43) males with male to female ratio of (1:2), their age range from (28-75 years) and their mean age was (54.2+ 10.1 years). Atypical hemangioma and malignant lesions were generally low signal in T1 and high or intermediate signal in T2 WI. Restricted diffusion and low ADC values were seen in atypical hemangioma compared with metastasis with mean ADC value were (1.426+0.231.6x10 -3mm2/s and 0.6182+ 0.137x10-3mm2/s respectively). Complementary CT confirmed the lytic or sclerotic nature of malignant lesions while in haemangiomas, it showed their characteristic striated (polka dot) appearance. CONCLUSION: Diffusion weighted Magnetic Resonance Imaging is a valuable tool in differentiation of atypical hemangioma and metastasis of spine with high sensitivity and specificity with the aid of ADC values calculated from the maps obtained by DWI. KEYWORDS: diffusion weighted magnetic resonance imaging, atypical haemangiomas, metastasis. | ||
| Keywords | ||
| KEYWORDS; atypical haemangiomas; metastasis | ||
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