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Noninvasive pulmonary perfusion imaging by STAR-HASTE sequence.
H Hatabu1, E Tadamura, P V Prasad
1Department of Radiology, Beth Israel Deaconess Medical Center, Boston, Massachusetts, USA. hatabu@oasis.rad.upenn.edu
Magnetic Resonance in Medicine
|November 7, 2000
Summary
Magnetic resonance imaging using the STAR-HASTE sequence enables noninvasive pulmonary perfusion imaging. This technique visualizes blood flow in the lungs without needing contrast agents.
Area of Science:
- Radiology
- Medical Imaging
- Pulmonary Medicine
Background:
- Magnetic susceptibility artifacts hinder traditional perfusion imaging in certain areas.
- The STAR-HASTE sequence demonstrates efficacy in overcoming these artifact-related limitations.
Purpose of the Study:
- To investigate the feasibility of pulmonary perfusion imaging using the STAR-HASTE magnetic resonance imaging (MRI) sequence.
- To assess the potential for noninvasive evaluation of lung perfusion.
Main Methods:
- Utilized the STAR-HASTE sequence for pulmonary perfusion imaging in six healthy subjects.
- Performed quantitative analysis with a kinetic model in one subject.
- Varied inflow time to observe enhancement patterns.
Main Results:
- Observed gradual enhancement from the pulmonary artery to the distal lung parenchyma as inflow time increased.
- Demonstrated successful visualization of pulmonary perfusion dynamics.
- Quantitative analysis provided initial insights into perfusion kinetics.
Conclusions:
- Noninvasive evaluation of pulmonary perfusion using MRI is achievable without exogenous contrast agents.
- The STAR-HASTE sequence shows promise for clinical application in assessing lung perfusion.
- Further research is warranted to validate these initial findings.