MRI diagnosis of cerebral venous malformation (CVM)

Objective To investigate the value of MRI in diagnosis of cerebral venous malformation (CVM). Methods 9 cases in our hospital patients with CVM data were analyzed retrospectively. 3 routine CT scan examination, 9 routine MRI T1WI, T2WI, T2FLAIR, T1WI enhanced scan, of which three routine 3D TOF MRA scans, two routine VEN BOLD SENSE scan. Results 5 cases were the infratentorial, 4 cases of supratentorial. 3 cases CT scan showed no direct signs of CVM, including two cases of unusual lesions, 1 case was normal. MRI scan showed five cases of medullar veins elongated T1 long T2 signal, the central vein stem elongated T1 and short T2 signal or long T1 long T2 signal, FLAIR signal slightly higher on the medullar vein, the central vein was slightly lower or slightly higher signal , enhancing showed a typical Jellyfish sign or the root sign performance. MRI scan showed two cases of tubular flow void of low signal to enhance strip showed high signal intensity. 1 case MRI scan shows round-like and long T1, such as long-T2 signal, the center shows the signal flow void. Enhanced MRA showed medullar veins radial import into the central vein and superior sagittal sinus, see Citation. Only 1 case could not be divided into specific sub-type preoperatively. Conclusion Multi-sequence MRI imaging of the vast majority of cerebral venous malformations can be diagnosed, MRI enhancement and VEN BOLD SENSE sequence is the most sensitive method in CVM, and should be preferred as the CVM inspection methods.