HSS 1014638 4/9/2013
Q: What is the main clinical concern with Dural AVM?
A: If the pt develops cortical venous drainage, they are at risk for venous infarct and hemorrhage.
Q: What non invasive test is most sensitive in detecting a dural AVM? Why?
A: MRA, (with MRI signal voids of vessels are located against inner table on T2 and dark CSF on T1)
Case in Point
4.4.13 Dural AVF
http://3s.acr.org/CIP/CaseView.aspx?CaseId=sLH94b+Dj2c=
recent case in JAMA (6/2015)
Q: Dural AVFs represent what percentage of all intracranial vascular malformations?
A: Dural AVFs represent 10–15% of all intracranial vascular malformations.
Q: Which of the following are possible complications related to endovascular treatment of dAVFs?
Infarction
Sinus thrombosis
Pulmonary embolism
Alopecia
Scalp ulcer
A: All of them
Infarction (venous thrombosis can result in venous infarct)
Sinus thrombosis (this could even be the intended result of therapy)
Pulmonary embolism (if embolic material inadvertantly goes too far into the venous system)
Alopecia (from extended flouro time)
Scalp ulcer (from extended flouro time)