Lisette van Dam

Magnetic resonance thrombus imaging in cerebral vein thrombosis 8 139 acute CVT, such as patients with changes in venous sinuses due to brain tumours or after intracranial surgery. Application of this technique may avoid overdiagnosis and subsequently potential bleeding events. Larger diagnostic studies are needed to confirm the value of MR-NCTI in the diagnostic management of suspected CVT. Figure 1. Computed tomography (CT) (A) and magnetic resonance images (MRI) (B-F) in a patient with suspected acute cerebral vein thrombosis: A. Sagittal CT venography image showing no opacification of the posterior part of the superior sagittal sinus (arrows) B. Transverse FLAIR MR image showing a parenchymal defect in the right parietal region, surrounded by increased signal intensity (indicative of gliosis), adjacent to the falx cerebri at the location of the superior sagittal sinus. C. and D. Sagittal and coronal MRI venography images showing absence of flow in posterior and caudal part of the superior sagittal sinus and both transversal sinuses (arrows). E. and F. Sagittal and coronal magnetic resonance non-contrast thrombus images (3D T1 TSE SPAIR sequence) showing no high signal intensity at the location of superior sagittal sinus or both transversal sinuses (arrows), making the diagnosis of (sub)acute thrombosis highly unlikely.