Reduced blood flow in the transverse sinus visualized by ultra low field magnetic resonance imaging.
With an ultra low field magnetic resonance imager (ULF-MRI) operating at 0.02 Tesla we describe a case of increased signal intensity from the transverse and sigmoid sinuses of the brain. A comparison with radionuclide angiography and skull computer tomography is made. The difficulties in differentiating low blood flow and venous thrombosis is also discussed.
Wahlund
L O
LO
Karolinska Institute MRI unit, Department of Psychiatry, St. Göran's Hospital, Stockholm, Sweden.
Sääf
J
J
Freund
Y
Y
Marions
O
O
Rudberg
U
U
D000368:Aged; D002560:Cerebrovascular Circulation; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging; D011875:Radionuclide Angiography; D012851:Sinus Thrombosis, Intracranial / Q000175:diagnosis*; D012886:Skull / Q000000981:diagnostic imaging; D014057:Tomography, X-Ray Computed