MRI indicates magnetic resonance imaging; SBP, systolic blood pressure; SPRINT, Systolic Blood Pressure Intervention Trial; WML, white matter lesion.
aOther reasons for unwillingness to participate include participant could not lie flat for extended period (n = 7), participant reported metal in body before formal screening (n = 8), participant concerns about stent or other cardiac device (n = 8), concerns about body size (n = 2), other reasons (n = 7), and unknown reason (n = 22).
bOther reasons for ineligibility include participant concerns about stent or other cardiac device (n = 8), use of pain pump (n = 2), prolonged hospitalization (n = 2), participant declined consent (n = 2), participant too large for MRI scanner (n = 1), and other reasons (n = 7).