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Abstract #3864

Error in the Reproducibility of Volume Measurements in Patients with Stable Intracranial Aneurysms Imaged at 1.5T & 3T

Farshid Faraji 1 , Donne Nieuwoudt 1 , Alastair Martin 2 , and David Saloner 1

1 Radiology & Biomedical Imaging, UCSF/VAMC, San Francisco, CA, United States, 2 Radiology & Biomedical Imaging, UCSF, San Francisco, CA, United States

Intracranial aneurysms are localized blood vessel dilations that can have dangerous sequellae in the event of rupture. Although there are treatment options, it is unclear whether the risks of surgery outweigh the benefits, especially in cases of asymptomatic aneurysms below a certain size threshold. Many patients opt for "watchful waiting", which necessitates accurate, reproducible, non-invasive imaging to assess disease progression. In this study, we investigate the error in the reproducibility of volumetric measurements in patients with stable intracranial aneurysms who have had repeat contrast-enhanced MR angiography at both 1.5 and 3T.

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