Lung imaging under free-breathing conditions

Oechsner, Markus, Pracht, Eberhard D., Staeb, Daniel, Arnold, Johannes F. T., Kistler, Herbert, Hahn, Dietbert, Beer, Meinrad and Jakob, Peter M. (2009) Lung imaging under free-breathing conditions. Magnetic Resonance in Medicine, 61 3: 723-727. doi:10.1002/mrm.21846


Author Oechsner, Markus
Pracht, Eberhard D.
Staeb, Daniel
Arnold, Johannes F. T.
Kistler, Herbert
Hahn, Dietbert
Beer, Meinrad
Jakob, Peter M.
Title Lung imaging under free-breathing conditions
Journal name Magnetic Resonance in Medicine   Check publisher's open access policy
ISSN 0740-3194
1522-2594
Publication date 2009-03
Sub-type Article (original research)
DOI 10.1002/mrm.21846
Open Access Status
Volume 61
Issue 3
Start page 723
End page 727
Total pages 5
Place of publication Hoboken United States
Publisher John Wiley & Sons
Language eng
Subject 2741 Radiology Nuclear Medicine and imaging
Formatted abstract
Respiratory motion and pulsatile blood flow can generate artifacts in morphological and functional lung imaging. Total acquisition time, and thus the achievable signal to noise ratio, is limited when performing breath-hold and/or electrocardiogram-triggered imaging. To overcome these limitations, imaging during free respiration can be performed using respiratory gating/triggering devices or navigator echoes. However, these techniques provide only poor gating resolution and can induce saturation bands and signal fluctuations into the lung volume. In this work, acquisition schemes for nonphase encoded navigator echoes were implemented into different sequences for morphological and functional lung imaging at 1.5 Tesla (T) and 0.2T. The navigator echoes allow monitoring of respiratory motion and provide an ECG-trigger signal for correction of the heart cycle without influencing the imaged slices. Artifact free images acquired during free respiration using a 3D GE, 2D multislice TSE or multi-Gradient Echo sequence for oxygen-enhanced T2* quantification are presented.
Keyword Free-breathing
Lung imaging
Navigator echo
Respiration triggering
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collection: Centre for Advanced Imaging Publications
 
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