Cardiac Magnetic Resonance Imaging for Detecting Endothelial Dysfunction

NCT ID: NCT00808535

Last Updated: 2009-02-09

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

UNKNOWN

Total Enrollment

60 participants

Study Classification

OBSERVATIONAL

Study Start Date

2009-02-28

Study Completion Date

2010-03-31

Brief Summary

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The goal of this research study is to demonstrate that Cardiac Perfusion MRI with Vasomotor Stress may serve as a non-invasive and less risky imaging technique for detecting non-obstructive perfusion deficits and/or abnormalities in myocardial blood flow (MBF) in patients with endothelial dysfunction.

This is a controlled study, which will enroll approximately 60 subjects (30 diabetics and 30 non-diabetics to serve as healthy controls), and will include male and non-pregnant females, between the ages 18-50 years.

All eligible participants will sign an informed consent and will complete a Lifestyle Questionnaire. They will undergo blood work which includes:

* 2-hour Oral Glucose Tolerance Test and Fasting Labs for Glucose, Insulin, C-Peptide, HbA1c, Creatinine, and Lipid Panel.
* Urine Albumin to Creatinine ratio for microalbuminuria.
* Serum inflammatory markers: E-selectin, homocysteine, ADMA, VCAM, IL-6, TNFalpha, hs-CRP and PAI-1.

After blood work, all participants will undergo cardiac MR perfusion imaging procedure with Cold Pressor Test and Adenosine Stress Test.

Detailed Description

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Conditions

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Endothelial Dysfunction Myocardial Perfusion Abnormalities Cardiac MRI Perfusion With Vasomotor Stress Diabetes

Study Design

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Observational Model Type

CASE_CONTROL

Study Time Perspective

PROSPECTIVE

Study Groups

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diabetics

Cardiac Perfusion MRI w Vasomotor Stress

Intervention Type PROCEDURE

All participants will undergo Cardiac Perfusion MRI with Vasomotor Stress. Vasomotor Stress will include both Cold Pressor Test and Adenosine Stress Test.

healthy controls

Cardiac Perfusion MRI w Vasomotor Stress

Intervention Type PROCEDURE

All participants will undergo Cardiac Perfusion MRI with Vasomotor Stress. Vasomotor Stress will include both Cold Pressor Test and Adenosine Stress Test.

Interventions

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Cardiac Perfusion MRI w Vasomotor Stress

All participants will undergo Cardiac Perfusion MRI with Vasomotor Stress. Vasomotor Stress will include both Cold Pressor Test and Adenosine Stress Test.

Intervention Type PROCEDURE

Eligibility Criteria

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Inclusion Criteria

* Age 18 to 50 years
* Should be able to sign an informed consent and HIPAA Agreement
* 30 healthy, non-diabetic individuals
* 30 diabetic individuals without documented coronary artery disease
* Diagnosed diabetics less than 5 years
* HbA1c less than 8.0

Exclusion Criteria

* Children under 18 years and adults above 50 years
* Type 1 DM
* Lactating and Pregnant females
* BMI less than 35
* Contraindication to MRI such as pacemaker, defibrillator implants, etc.
* Allergy to MR (paramagnetic) contrast
* History of Angina, MI, or documented Coronary Artery Disease
* Previous history of CHF, CABG, Angioplasty and Stenting
* History of Valvular Heart Disease and Congenital Heart Disease
* History of Peripheral Vascular Disease
* History of Cardiac Arrythmias and anti-coagulation therapy
* History of Cerebro-vascular accidents or TIA
* History of active diabetic retinopathy and nephropathy
* Uncontrolled hypertension (systolic \> 170 and diastolic \>100 mm Hg
* End Stage Renal Disease and patients on dialysis
* HbA1c of 8.0
* Creatinine greater than 1.7 mg/dl
* History of active gastrointestinal bleeding
* History of IV drug use
* Chronic or current steroid treatment
* Growth hormone treatment
Minimum Eligible Age

18 Years

Maximum Eligible Age

50 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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Bracco Diagnostics, Inc

INDUSTRY

Sponsor Role collaborator

University of California, Los Angeles

OTHER

Sponsor Role lead

Responsible Party

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UCLA

Principal Investigators

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Stefan Ruehm, MD

Role: PRINCIPAL_INVESTIGATOR

University of California, Los Angeles

Locations

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UCLA Radiological Sciences

Los Angeles, California, United States

Site Status

Countries

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United States

Facility Contacts

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Wanda C Marfori, MD

Role: primary

310-206-2531

Stefan Ruehm, MD

Role: backup

3108250958

Other Identifiers

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CMRI_Perfusion Study

Identifier Type: -

Identifier Source: org_study_id

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