The imaging pattern and implication of intracranial atherosclerotic stenosis on TOF MRA had not been fully understood. In patients with middle cerebral artery stenosis, we had used high-resolution vessel wall imaging to evaluate plaque morphology and conventional angiography to evaluate cerebral hemodynamics in groups with different TOF MRA pattern. We had found that the TOF MRA pattern was associated with stenosis percentage, the middle cerebral artery branch signal intensity distal to the site of stenosis on TOF MRA was associated with hemodynamic impairments and was determined by the status of antegrade flow.
How to access this content:
For one year after publication, abstracts and videos are only open to registrants of this annual meeting. Registrants should use their existing login information. Non-registrant access can be purchased via the ISMRM E-Library.
After one year, current ISMRM & ISMRT members get free access to both the abstracts and videos. Non-members and non-registrants must purchase access via the ISMRM E-Library.
After two years, the meeting proceedings (abstracts) are opened to the public and require no login information. Videos remain behind password for access by members, registrants and E-Library customers.
Keywords