Discussion susceptibility weighted diagnosis of intracranial cavernous hemangioma and arteriovenous malformations value

Objective To study the value of magnetic susceptibility-weighted in diagnosis of intracranial cavernous hemangioma and arteriovenous abnormal. Methods Susceptibility Weighted Imaging(SWI) and conventional MRI sequences(T1WI, T2WI, enhanced T1WI) images of 27 cases with intracranial cavernous hemangioma and 18 cases with arteriovenous malformation confirmed by pathology were retrospectively analyzed from March to August 2011. The characteristics and the detection rate of different imaging sequence lesion were analyzed and compared. Results The diagnosis rate of T1WI, T2WI, T1 C+, SWI in intracranial cavernous hemangioma were 48.1%, 59.3%, 70.4% and 92.6% respectively, the diagnosis rate of SWI was obviously higher than that of T1WI, T2WI, T1 C+, the differences were statistically significant(all P 0.05). The maximum diameter of lesions detected by conventional MRI sequences and SWI were(3.12±1.27) cm and(2.27±0.97) cm respectively, the difference was statistically significant(P 0.05); lesion detection rate of enhanced T1WI and SWI had no statistically significant difference(P 0.05), both was obviously higher than that of conventional T1WI and T2WI, the differences were statistically significant(P 0.05). Conclusion The diagnosis rate of susceptibility weighted in intracranial cavernous hemangioma and arteriovenous abnormal were significantly higher than that of the conventional MRI sequences, and worthy of promotion.