MRI Manifestations of the Dural Sinus Thrombosis
- VernacularTitle:硬脑膜窦血栓形成磁共振成像诊断
- Author:
Junling XU
;
Dapeng SHI
;
Xiaoming MAO
;
Jianmin LIAN
;
Shewei DOU
- Publication Type:Journal Article
- Keywords:
dural sinus;
thrombosis;
magnetic resonance imaging;
venography
- From:
Journal of Practical Radiology
2001;0(05):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To sum up MRI and MR venography features of the dural sinus thrombosis (DST).Methods The findings of MRI and MR venography in 20 patients with DST were retrospectively analysed.Results MRI showed the normal flowing void of the dural sinus disappeared,instead of the abnormal high signal intensities.The easily involved positions respectively were transversal - sigmoid, superior sagittal and straight sinuses. Some cortical drainage and large internal cerebral veins were also involved . MR venography demonstrated that there were no blood flowing in these involved dural sinuses or veins . The locations of these lesions in MRI were same as that in MRV.Conclusion Because the DST can be directly displayed in MRI and MR venography,they are the most reliable methods of non- invasive diagnosis of DST.
