MR Imaging Features of Isolated Cortical Vein Thrombosis: Diagnosis and Follow-Up

Cerebral Venous Thrombosis: Diagnostic Accuracy of Combined, Dynamic and Static, Contrast-Enhanced 4D MR Venography

“…Its incomplete overall sensitivity of 76% is most likely related to the inclusion of thrombosed cortical veins that are notoriously difficult to assess on MRV due to their high variability in number, size, and location. 6,22 In dural venous sinus thrombosis alone, it showed the highest sensitivity (97%) and specificity (99%) among the 4 assessed techniques. Although only a trend toward superior accuracy was found on ROC analysis between combo-4D MRV (AUC of 0.99) and TOF MRV (AUC of 0.96), a significantly higher sensitivity and specificity was demonstrated with the binary test (97% versus 82%) in cases of dural venous sinus thrombosis.…”

Subarachnoid hemorrhage in isolated cortical vein thrombosis: are presentation of an unusual condition

“…Isolated cortical vein thrombosis is rather unusual, and also confined to case reports or small series 1 . The clinical manifestations and risk factors are not well established, but reviewed cases suggest that they are analogous to dural sinus thrombosis.…”

“…Cerebral vein thrombosis (CVT) is a difficult diagnosis to establish, due to its widely variable clinical manifestations 1 . Among those, subarachnoid hemorrhage (SAH) is regarded as one of the rarest presentations and of relatively recent recognition 2,3 .…”

“…Isolated cortical vein thrombosis (ICoVT), i.e. without concomitant venous sinus thrombosis, is an extremely rare presentation of CVT, being mainly reported as sparse case reports or small series of cases 1,4,5 .…”

Imaging of Ischemic Stroke

“…FLAIR images are also highly sensitive to subarachnoid hemorrhage [26] as well as acute cerebral venous sinus thrombosis [27,28]. In the setting of hyperacute stroke, T2-weighted images can be useful to detect the loss of the arterial signal flow void in occluded vessels within minutes of the stroke onset [25].…”