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Magnetic Resonance Imaging Quantification of Pulmonary Perfusion using Calibrated Arterial Spin Labeling

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Pulmonary MR angiography techniques and applications.

Elizabeth M Hecht¹, Andrew Rosenkrantz

¹Department of Radiology, New York University School of Medicine, 560 First Avenue, TCH-HW202, New York, NY 10016, USA. elizabeth.hecht@nyumc.org

Magnetic Resonance Imaging Clinics of North America

|April 15, 2009

Summary

Magnetic resonance angiography (MRA) offers a comprehensive evaluation of the pulmonary arterial system, assessing anatomy, morphology, perfusion, flow, and function. This review covers MRA techniques, advances in MR technology, and clinical applications for pulmonary imaging.

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Published on: February 10, 2012

Area of Science:

Medical Imaging
Cardiovascular Radiology
Magnetic Resonance Imaging

Background:

Pulmonary arterial system evaluation is crucial for diagnosing various cardiovascular and pulmonary diseases.
Conventional imaging modalities have limitations in comprehensively assessing pulmonary vasculature.
Magnetic Resonance Angiography (MRA) presents a non-invasive option for detailed pulmonary artery assessment.

Purpose of the Study:

To discuss the role and techniques of MRA in evaluating the pulmonary arterial system.
To compare MRA with CT angiography and digital subtraction x-ray angiography for anatomical and morphological depiction.
To highlight the integrated MR examination's capability for comprehensive vascular morphology and function assessment.

Main Methods:

Review of current and emerging gadolinium contrast-enhanced and non-contrast-enhanced MRA techniques.
Discussion of advances in MR technology improving spatial/temporal resolution and artifact compensation.
Comparison of MRA with CT angiography and digital subtraction x-ray angiography.

Main Results:

MRA provides a comprehensive assessment of pulmonary vascular morphology and function, including perfusion and flow.
Advances in MR technology enhance the quality and diagnostic utility of pulmonary MRA.
MRA techniques are compared with conventional angiography for anatomical depiction.

Conclusions:

Pulmonary MRA is a valuable tool for evaluating the pulmonary arterial system.
The integrated MR examination offers a holistic assessment of vascular health.
Understanding MRA protocols, findings, and interpretation pitfalls is essential for clinical application.