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Abstract #2995

MRI/A in the Evaluation of Changes Over Time in Untreated Aneuryms

David A. Saloner1, Alastair Martin2, Daniel Hurwit2, Sahand Sohrabi2, Andrew Lee2, Vitaliy L. Rayz2, William Young3, Wade Smith4, Randall Higashida2, Michael Lawton5, Charles McCulloch6

1Radiology and Biomedical Imaging, VAMC/UCSF, San Francisco, CA, United States; 2Radiology and Biomedical Imaging, UCSF, San Francisco, CA, United States; 3Anesthesiology, UCSF, San Francisco, CA, United States; 4Neurology, UCSF, San Francisco, CA, United States; 5Neurological Surgery, UCSF, San Francisco, CA, United States; 6Epidemiology and Biostatistics, UCSF, San Francisco, CA, United States


This study reports on the serial imaging of subjects with untreated intracranial aneurysms. 74 aneurysms in 68 patients were thrombus-free and studies were conducted over a total of 226 intervals. The standard error of measurement was found to be 4.9%. Approximately 15% of aneurysms were found to grow over time.