Cardiac Magnetic Resonance Imaging and Pulmonary Perfusion

Study Overview
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Brief Summary
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Pulmonary hypertension is a rare severe disease leading to cardiac insufficiency. Treatment depends on the severity of the disease. This study evaluates cardiac MRI for the assessment of pulmonary hypertension severity and identification of parameters useful for the follow-up in order to adapt the medical treatment to status of the patient. Evaluate if cardiac MRI can obviate right cardiac catheterization in the follow-up.

Detailed Description
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Thirty patients will be enrolled and followed for 1 year after their inclusion. Cardiac MRI will be performed at inclusion and at 3 months and 12 months. At the same periods, echocardiography and right heart catheterization will be performed too. Morphological and functional parameters will be studied with MRI and correlated to invasive parameters and echocardiography too. Morphological parameters are: volumes, cardiac cavities areas and ratios and position of the interventricular septum. Functional parameters are: ejection fractions of right and left cavities, flow in pulmonary artery, across mitral and tricuspid valves, temporal measurements in the pulmonary artery and auriculoventricular valves. The invasive measurements are considered as the gold standard for this study. The classification of the severity is defined according to the parameters from right cardiac catheterization (4 grades with severity increasing between 1 and 4).

Official Title
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Cardiac Magnetic Resonance Imaging and Pulmonary Perfusion: Its Role in the Diagnosis of the Severity of Pulmonary Hypertension in Adults and in the Follow-up. Preliminary Study.

Conditions
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Pulmonary Hypertension

Intervention / Treatment
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* Procedure: Magnetic resonance imaging (MRI)


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Adults patients with pulmonary hypertension without specific treatment at inclusion Etiologies include chronic embolic disease, systemic fibrosis, Gougerot Sjogren, drug induced hypertension, primary hypertension. informed consent affiliated to medical insurance. Exclusion Criteria: Left cardiac disease responsible for pulmonary hypertension, congenital cardiopathies Pulmonary functional tests with important impairment (decrease in TPCmore than 30%, decrease In VEMS more than 30% Child pregnancy contraindications to MRI without informed consent without insurance

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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No

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Diagnostic
Intervention Model: Single Group Assignment
Masking: None (Open Label)


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: Magnetic resonance imaging<br> | Procedure: Magnetic resonance imaging (MRI)<br>* MRI cardiac and pulmonary with gadolinium<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Nuclear magnetic resonance imaging | Correlation of cardiac results from the first MRI (Magnetic Resonance Imaging) to invasive measurements from the first or initial right heart catheterization and to echocardiography to know if cardiac MRI is able to predict severity of the disease | Inclusion ; 3rd month ; 12th month | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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Pulmonary arterial hypertension, cardiac MRI (magnetic resonance imaging), severity, prognosis