Pulmonary hypertension MRI: Difference between revisions
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==MRI== | ==MRI== | ||
===Role of MRI=== | ===Role of MRI=== | ||
The role of MRI:<ref name="pmid24344668">{{cite journal |vauthors=Alassas K, Mergo P, Ibrahim el-S, Burger C, Safford R, Parikh P, Shapiro B |title=Cardiac MRI as a diagnostic tool in pulmonary hypertension |journal=Future Cardiol |volume=10 |issue=1 |pages=117–30 |date=January 2014 |pmid=24344668 |doi=10.2217/fca.13.97 |url=}}</ref> | |||
*Accurate evaluation of the size, morphology and function of the right ventricle. | *Accurate evaluation of the size, morphology and function of the right ventricle. | ||
**MRI has similar abilities to those of [[echocardiography]] in the diagnosis and treatment of patients with pulmonary hypertension. | **MRI has similar abilities to those of [[echocardiography]] in the diagnosis and treatment of patients with pulmonary hypertension. | ||
| Line 14: | Line 15: | ||
*Detection of acute and chronic pulmonary thromboembolic disease. | *Detection of acute and chronic pulmonary thromboembolic disease. | ||
*Differentiation between the pulmonary vasculature and [[mediastinal]] [[adenopathy]] when used | *Differentiation between the pulmonary vasculature and [[mediastinal]] [[adenopathy]] when used for contrast enhancement. | ||
*Follow-up for right heart [[hemodynamics]]. | *Follow-up for right heart [[hemodynamics]]. | ||
Revision as of 22:55, 2 March 2018
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Pulmonary Hypertension Microchapters |
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Diagnosis |
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Treatment |
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Case Studies |
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Pulmonary hypertension MRI On the Web |
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American Roentgen Ray Society Images of Pulmonary hypertension MRI |
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Risk calculators and risk factors for Pulmonary hypertension MRI |
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1], Assistant Editor(s)-in-Chief: Ralph Matar
Overview
Cardiac MRI provides important prognostic indicators regarding the function of right ventricle in patients with pulmonary hypertension.
MRI
Role of MRI
The role of MRI:[1]
- Accurate evaluation of the size, morphology and function of the right ventricle.
- MRI has similar abilities to those of echocardiography in the diagnosis and treatment of patients with pulmonary hypertension.
- Detection of shunts contributing to pulmonary hypertension.
- Detection of acute and chronic pulmonary thromboembolic disease.
- Differentiation between the pulmonary vasculature and mediastinal adenopathy when used for contrast enhancement.
- Follow-up for right heart hemodynamics.
- Poor right ventricular function is indicated by the following according to the ACCF/AHA 2009 Expert consensus document on pulmonary hypertension:
- Stroke volume ≤25ml/m^2.
- Right ventricular end-diastolic volume ≥84ml/m^2( Most appropriate marker of right ventricular failure in the follow-up.)
- Left ventricvular end-diastolic volume ≤40ml/m^2
- Poor right ventricular function is indicated by the following according to the ACCF/AHA 2009 Expert consensus document on pulmonary hypertension:
- Pulmonary artery stiffness measured by relative cross sectional area change ≤16% also has implications on mortality rate.
MRI Limitations include
- Inability to perform breath hold
- Incompatible hardware such as neurostimulators, cochlear implants, aneurysm clips, cardiac pacemakers and defibrillators
- Limited availability and cost
- Difficulty in assessing PA pressures