Contribution Of Nuclear Magnetic Resonance Imaging In The Study Of Diabetic Cardiomyopathy

Study Overview
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Brief Summary
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Diagnosis of diabetic cardiomyopathy is then retained, supposing a change in the coronary microcirculation linked to an endothelial dysfunction. Abnormalities of the myocardial metabolism is frequently associated. It is regrettably about a hypothesis difficult to verify with current medical techniques.This deficiency being not only harmful to the diagnosis, but also to the assessment of the efficiency of the medical treatment on the myocardial metabolism and the endothelial function. Techniques of nuclear magnetic resonance offer interesting perspectives.

Detailed Description
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These techniques allow in this context: to quantify the myocardial blood flow at rest and after cold pressor test in a population of healthy volunteers. The myocardial blood flow will be obtained by estimating myocardial blood flow at the venous coronary sinus site. This allows us to quantify a possible endothelial dysfunction in a reproducible way. No MRI study in diabetic patients has ever been led until now with this technique. to estimate the metabolic and structural abnormalities in this population, with particularly: Quantification of the myocardial metabolism in vivo by spectrometry of phosphorus 31. Structural abnormalities: become integrated into the description of diabetic cardiomyopathy.

Official Title
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Contribution Of Nuclear Magnetic Resonance Imaging In The Study Of Diabetic Cardiomyopathy

Conditions
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Diabetic, Cardiomyopathy

Intervention / Treatment
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* Other: NUCLEAR MAGNETIC RESONANCE IMAGING
* Other: NUCLEAR MAGNETIC RESONANCE IMAGING


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: more than 18 years old patient type 2 diabetes affects taken care more than 5 years to Timone Hospital patient with a diabetic cardiomyopathy informed and consented Exclusion Criteria: less than 18 years Pregnant woman patient type 1 diabetes affects patient presents a cardiomyopathy mixed (no diabetic) patients presents an arrhythmia ventriculaire or above - ventriculaire Unstable hémodynamique patients

Ages Eligible for Study
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Minimum Age: 18 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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Accepts Healthy Volunteers

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Diagnostic
Allocation: Non-Randomized
Intervention Model: Parallel Assignment
Masking: None (Open Label)


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: healthy volunteers<br> | Other: NUCLEAR MAGNETIC RESONANCE IMAGING<br>* Techniques of nuclear magnetic resonance offer interesting perspectives in this context, and particularly to quantify the myocardial blood flow at rest and after cold pressor test in a population of healthy volunteers.<br>|
| Active Comparator: patients with a diabetic cardiomyopathy<br> | Other: NUCLEAR MAGNETIC RESONANCE IMAGING<br>* Techniques of nuclear magnetic resonance offer interesting perspectives in this context, and particularly to quantify the myocardial blood flow will be obtained by estimating myocardial blood flow at the venous coronary sinus site. This allows us to quantify a possible endothelial dysfunction in a reproducible way. No MRI study in diabetic patients has ever been led until now with this technique and to estimate the metabolic and structural abnormalities in this population.<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| To quantify the myocardial blood flow at rest and after cold pressor test in a population of healthy volunteers | The myocardial blood flow will be obtained by estimating myocardial blood flow at the venous coronary sinus site. This allows us to quantify a possible endothelial dysfunction in a reproducible way. No MRI study in diabetic patients has ever been led until now with this technique. | 12 months | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| To estimate the metabolic and structural abnormalities in this population | Quantification of the myocardial metabolism in vivo by spectrometry of phosphorus 31 which allows to estimate the energy state of the heart by analyzing the phosphorous metabolites with high energy involved in the myocardial energetic metabolism. Structural abnormalities: evaluation of the fibrosis and the collagenic deposits by T1 mapping and measurement of relaxation T2 as well as the study of the late enhancement of gadolinium. These structural abnormalities become integrated into the description of diabetic cardiomyopathy. | 12 months | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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type 2 diabetes, Cardiovascular diseases, coronary syndrome have abnormalities of glucidic metabolism