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MR pulmonary angiography and perfusion imaging: recent advances
1Department of Radiology and Nuclear Medicine, Kyoto University Hospital, Sakyo-Ku, Japan.
Seminars in Ultrasound, CT, and MR
|October 31, 1997
Summary
Recent advancements in Magnetic Resonance (MR) pulmonary angiography and perfusion imaging offer new diagnostic potential. These techniques, utilizing enhanced MR scanners and novel contrast methods, show promise for diagnosing pulmonary embolism and functional lung imaging.
Area of Science:
- Medical Imaging
- Cardiovascular Imaging
- Pulmonary Imaging
Background:
- Magnetic Resonance (MR) imaging has evolved significantly for pulmonary vasculature assessment.
- Traditional MR angiography relied on naturally flowing spins for signal.
- Technical limitations previously hindered detailed pulmonary imaging.
Purpose of the Study:
- To review recent technical advancements in MR pulmonary angiography and perfusion imaging.
- To highlight new trends in MR angiography techniques.
- To explore the potential of these advancements in clinical diagnosis.
Main Methods:
- Review of technical developments in MR scanners, focusing on enhanced gradient systems.
- Analysis of novel MR angiography trends, including gadolinium contrast agents.
- Evaluation of blood labeling techniques using inversion recovery radiofrequency pulses.
Main Results:
- Enhanced gradient systems improve MR scanner capabilities for pulmonary imaging.
- New MR angiography methods offer alternatives to traditional spin-based techniques.
- These developments facilitate improved visualization of the pulmonary vasculature.
Conclusions:
- Recent MR advancements hold significant potential for clinical pulmonary vascular imaging.
- These techniques are particularly promising for diagnosing pulmonary embolism.
- Emerging methods are enabling functional MR imaging of the lung.