Endothelial Function Clinical Trial
— EFBOLD-MRIOfficial title:
Assessment of Endothelial Function Using Blood Oxygen Level-Dependent MRI (BOLD-MRI)
Verified date | October 2011 |
Source | University of Calgary |
Contact | n/a |
Is FDA regulated | No |
Health authority | Canada: Health Canada |
Study type | Interventional |
The purpose of this study is to assess the applicability of a new SSFP-based BOLD sensitive
MRI sequence in evaluating endothelial function. Endothelial function will be tested in a
setting of reactive hyperemia in the forearm. In a setting of ischemia-reperfusion, the
effect of transient endothelial function impairment will be tested. Comparison with
endothelial function assessment by brachial ultrasound (FMD) and finger tip plethysmography
(PAT) will be incorporated.
Hypothesis: BOLD-MRI is a feasible tool to assess endothelial function in the human forearm
during reactive hyperemia. There is significant correlation to established flow-mediated
dilation (FMD).
Status | Completed |
Enrollment | 15 |
Est. completion date | September 2011 |
Est. primary completion date | September 2011 |
Accepts healthy volunteers | Accepts Healthy Volunteers |
Gender | Male |
Age group | 18 Years and older |
Eligibility |
Inclusion criteria - Informed written consent - male gender - age > 18 years - fasting for 4 hours prior to the study and especially no coffee Exclusion criteria - Contraindications for MRI - female gender - known cardiovascular disease including: CHD, congestive heart failure, peripheral vascular disease - known cardiovascular risk factors : smoking, diabetes mellitus, hypertension, hyperlipidemia - Current vasoactive medication : Beta-blockers, Ca-Antagonists, ACE-Inhibitors, ARB, Phosphodiesterase inhibitors - concomitant serious medical condition - unreliability as a volunteer or inability or unwillingness to complete the study and the second day of examination |
Intervention Model: Single Group Assignment, Masking: Open Label, Primary Purpose: Diagnostic
Country | Name | City | State |
---|---|---|---|
Canada | Stephenson CMR Centre at Foothills Medical Centre, University of Calgary | Calgary | Alberta |
Lead Sponsor | Collaborator |
---|---|
University of Calgary |
Canada,
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Primary | BOLD-MRI signal-intensity | 75 min | No | |
Secondary | FMD PAT | 75 min | No |
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