Meeting Banner
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.

Keywords

acceleration affording analyses aneurysm aneurysms annualized anterior appropriate approved artery assess balanced basilar begun beyond biomedical biostatistics blue brain carotid cerebral choice communicating conducted consistent continue critical definitive determining dimensions disease either enhanced epidemiology error evaluate events evolution excluded expand free function fusiform general generated global great green growth hemorrhagic history identify implement imposed indicates internal interval intervals intervention invasive known limitations linear little location locations longer maintained majority many markers mass match middle minimally mixed modalities monitor months morphology natural neurological neurology opportunity option options parallel particular patient patients percentage planned pose power precession presentation pressing progression protocol purple radiology rapid recruit recruited regional registered relationship remain remaining remove repeated report requiring residual resolution review risk rupture segment selected serial session smaller smith stable statements statistical steady stroke structures studies subjects subsequent substantial surgery therapeutic thrombus topic traditional treatment unfavorable untreated variables vessel vessels volume ways whether year years young