Early Vascular Wall Changes by Magnetic Resonance Imaging (MRI) in Metabolic Syndrome Versus Metabolically Normal Pre-Menopausal Women: A Pilot Study
| Status: | Archived |
|---|---|
| Conditions: | Endocrine |
| Therapuetic Areas: | Endocrinology |
| Healthy: | No |
| Age Range: | Any |
| Updated: | 7/1/2011 |
| Start Date: | May 2009 |
| End Date: | May 2011 |
Early Vascular Wall Changes by MRI in Metabolic Syndrome vs. Metabolically Normal Pre-Menopausal Women: A Pilot Study
The purpose of this study is to compare the vascular permeability of blood vessel walls (of
the carotid artery) in pre-menopausal women who have metabolic syndrome (syndrome of having
at least 3/5 following features- increased abdominal fat, low good cholesterol (HDL-C),
elevated fasting blood fats (triglycerides), elevated blood pressure, an elevated fasting
glucose) versus those women who are normal weight and with normal cholesterol, blood fats,
blood pressure, and blood sugar. We are using a novel technology to measure vascular
permeability known as dynamic contrast enhancement magnetic resonance imaging (DCE-MRI). The
primary variable is ktrans ratio which is a mathematically derived quantity obtained from
DCE-MRI. We are trying to identify novel markers of early atherosclerosis in young women.
This study involves a phone screen & 2 study visits:
- Screening visit, which includes a quick finger stick cholesterol, glucose,
triglycerides test (cholestech) to determine qualification, waist measurement, weight.
Results are provided regardless of qualification. If the volunteer qualifies, a full
blood draw (approximately 45cc or 3 Tablespoons) will occur. A snack is provided once
blood is drawn. Additional study visit procedures include a medical history
questionnaire including menstrual history, height & weight measurement, vital signs,
and waist & hip measurements. This study lasts up to 90 minutes.
- MRI visit (to occur within a week of screening visit) occurs once serum pregnancy &
creatinine results are received & only if approved to continue by P.I. (e.g. negative
serum pregnancy and eGFR>60). An IV catheter is placed in the antecubital vein to
administer an injection of (gadolinium) contrast medium. A coil is placed on each side
of the subject's neck while laying flat on a bench, with her upper body inside the MRI
scanner. The entire MRI procedure takes approximately 60 minutes.
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