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[New developments in MRI of the thorax]
H U Kauczor1, C P Heussel, W G Schreiber
1Klinik und Poliklinik für Radiologie, Johannes-Gutenberg-Universität Mainz, Langenbeckstrasse 1, 55131 Mainz. kauczor@radiologie.klinik.uni-mainz.de
Der Radiologe
|April 27, 2001
Summary
Magnetic Resonance Imaging (MRI) now offers advanced lung imaging for both structure and function. This technique provides detailed ventilation and perfusion data without radiation, improving lung disease diagnosis.
Area of Science:
- Pulmonary Imaging
- Functional Respiratory Imaging
- Medical Magnetic Resonance
Context:
- Historically, MRI use in lung imaging was limited by technical challenges.
- Recent advancements have significantly enhanced anatomical and functional MRI capabilities for the lungs.
Purpose:
- To explore novel MRI techniques for assessing pulmonary ventilation and perfusion.
- To highlight the advantages of MRI, including lack of ionizing radiation and high resolution.
Summary:
- Functional MRI methods include contrast agents, MR angiography for perfusion, and inhaled agents (noble gases, SF6) for ventilation.
- New measurable parameters include ventilation homogeneity, lung volumes, airspace size, intrapulmonary oxygen, and ventilation/perfusion ratios.
- Lung MRI shows promise for detecting ventilation defects with greater sensitivity than scintigraphy, CT, or pulmonary function tests.
Impact:
- Combining ventilation and perfusion MRI strategies can improve diagnostic specificity and characterization of lung function impairments.
- This approach offers a comprehensive, non-ionizing radiation method for evaluating lung health.