Patients with unruptured intracranial aneurysms routinely undergo surveillance imaging to monitor their growth. Contrast enhanced magnetic resonance angiography (CE-MRA) provides good accuracy in measuring size, but requires the use of contrast agents, which is undesirable for repeated imaging. In this study, we propose a semi-automatic method to compare the volumetric difference between 3D non-contrast black blood MRI and CE-MRA on 17 aneurysms. Our results support the use of non-contrast black blood MRI for surveillance of intracranial aneurysm in the clinical setting.
