磁敏感加权成像对脑内毛细血管扩张症的诊断价值-医学影像学资源.PDFVIP

1008 2008 24 7 Chin J M ed Imaging T echn ol , 2008, V ol 24, No 7 Diagnostic value of magnetic susceptibility weighted imaging in capillary telangiectasia of the brain * J IN Guang-w ei , YA N G Feng-qin, L I J un-qiu, L I X i a, L I UJ i an-x in (D ep ar tment of R adio ogy , M e itan Gener a H osp ita , B e ij ing 100028, Ch ina) [Abstract] Objective T o analysis the diagnostic value of magnetic susceptibility w eig ht ed imaging ( SWI) in capilla y telan- g iectasia of the b ain. Methods T he M R finding s in T SE- IR-T 1WI and SE-T 2W I of 5 patients w ith capilla y telang iectasia we e co mpa ed w ith those finding s in SWI. Results T he e a e multiple lesions in all pat ients. F ifty lesio ns a e fo und in 5 patients. T he lesio ns show ound o ova l shape, ang ing f om 2 mm to 1 cm in diamete . A mong them, 35 lesions a e loca- ted in the pons, 10 in ce ebellum, 5 in basal g ang lia. 20 lesions show isointensity and 30 hy po signal intensity on T 1-w eig hted images. Sixt een lesions show isointensity and 34 hy po signal intensity on T 2-weighted imag es. F ifty lesio ns all show sig nal lo ss on SWI , 39 of them w ith ta g et sig n. Conclusion T he magnetic susceptibility of capilla y telangiectasia a e inc eased on SWI. SW I can display its cha acte istic. T he det ected ate of SWI fo capilla y telangiectasia a e supe io to conventio nal M RI. [Key words] Susceptibility w eig hted imag ing ; T elang iectasis; M agnetic esonance imaging * 金光暐 , 杨凤琴, 李俊秋, 李 霞, 刘建新 ( , 100028) [ ] SWI 5 T SE- IR-T 1WISE-T 2W I SW I, 5 , 50 , ,