Oxygen-Enhanced Imaging of the Lung
Using slice-selective RF pulses, parallel imaging, and combined respiratory and ECG triggering, oxygen-enhanced lung MRI with the acquisition of six slices and 80 repetitions can be performed in 8 to 13 min depending on the respiratory frequency of the examined subject. Parallel imaging provides the substantial advantage that the actual acquisition time, i.e., the required end-expiration time, becomes significantly shorter. Thus, acquisition of up to six slices is feasible in a free-breathing oxygen-enhanced lung examination. In conclusion, oxygen-enhanced lung imaging becomes sufficiently robust and fast to be included into a clinical routine MRI examination of the lung consisting of other morphologic and functional methods such as pulmonary MR angiography and lung perfusion MRI.
KeywordsParallel Imaging Magn Reson Image Respiratory Trigger Haste Sequence Interleave Acquisition
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- Losert C, Nikolaou K, Scheidler J, Mueller CJ, Schwaiblmair M, Reiser MF (2002) Optimized respiratory and ECG gating in oxygen-enhanced MR ventilation imaging of the lung. Proc Intl Soc Mag Reson Med 10:1971Google Scholar