Zooming in on cerebral small vessel function in small vessel diseases with 7T MRI: Rationale and design of the “ZOOM@SVDs” study

• DOI: 10.1016/j.cccb.2021.100013
• Publication Date: 2021-04-24T23:44:40Z
• Authors: Hilde van den Brink; Anna Kopczak; Tine Arts; Laurien Onkenhout; Jeroen C.W. Siero; Jaco J.M. Zwanenburg; Marco Duering; Gordon W. Blair; Fergus N. Doubal; Michael S. Stringer; Michael J. Thripp...; Hugo J. Kuijf; Alberto de Luca; Jeroen Hendrikse; Joanna M. Wardlaw; Martin Dichgans; Geert Jan Biessels
• Keywords: Cognitive Neuroscience; Small vessel function; Clinical Neurology; Cerebral small vessel disease; Specialties of internal medicine; CADASIL; Neurosciences. Biological psychiatry. Neuropsychiatry; Article; 3. Good health; Stroke; Behavioral Neuroscience; 03 medical and health sciences; 0302 clinical medicine; Neurology; RC581-951; High field strength MRI; ddc:610; Sporadic SVD; Biological Psychiatry; RC321-571

Cerebral small vessel diseases (SVDs) are a major cause of stroke and dementia. Yet, specific treatment strategies are lacking in part because of a limited understanding of the underlying disease processes. There is therefore an urgent need to study SVDs at their core, the small vessels themselves.This paper presents the rationale and design of the ZOOM@SVDs study, which aims to establish measures of cerebral small vessel dysfunction on 7T MRI as novel disease markers of SVDs.ZOOM@SVDs is a prospective observational cohort study with two years follow-up. ZOOM@SVDs recruits participants with Cerebral Autosomal Dominant Arteriopathy with Subcortical Infarcts and Leukoencephalopathy (CADASIL, N = 20), sporadic SVDs (N = 60), and healthy controls (N = 40). Participants undergo 7T brain MRI to assess different aspects of small vessel function including small vessel reactivity, cerebral perforating artery flow, and pulsatility. Extensive work-up at baseline and follow-up further includes clinical and neuropsychological assessment as well as 3T brain MRI to assess conventional SVD imaging markers. Measures of small vessel dysfunction are compared between patients and controls, and related to the severity of clinical and conventional MRI manifestations of SVDs.ZOOM@SVDs will deliver novel markers of cerebral small vessel function in patients with monogenic and sporadic forms of SVDs, and establish their relation with disease burden and progression. These small vessel markers can support etiological studies in SVDs and may serve as surrogate outcome measures in future clinical trials to show target engagement of drugs directed at the small vessels.