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Feasibility of functional magnetic resonance lung imaging in Australia with long distance transport of hyperpolarized helium from Germany

Background and objective:  MRI of the lung using hyperpolarized helium as an inhaled contrast agent has important research applications and clinical potential. Owing to the limited availability of hyperpolarized helium, this type of imaging has not been performed in the human lung outside of North A...

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Published in:Respirology (Carlton, Vic.) Vic.), 2008-06, Vol.13 (4), p.599-602
Main Authors: THIEN, Francis, FRIESE, Marlies, COWIN, Gary, MAILLET, Donald, WANG, Deming, GALLOWAY, Graham, BRERETON, Ian, ROBINSON, Philip J., HEIL, Werner, THOMPSON, Bruce
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cited_by cdi_FETCH-LOGICAL-c4062-8eb3eea29bb79143df1b6e09e236102ca9b51099257f90421c4e2a508407f4183
cites cdi_FETCH-LOGICAL-c4062-8eb3eea29bb79143df1b6e09e236102ca9b51099257f90421c4e2a508407f4183
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container_title Respirology (Carlton, Vic.)
container_volume 13
creator THIEN, Francis
FRIESE, Marlies
COWIN, Gary
MAILLET, Donald
WANG, Deming
GALLOWAY, Graham
BRERETON, Ian
ROBINSON, Philip J.
HEIL, Werner
THOMPSON, Bruce
description Background and objective:  MRI of the lung using hyperpolarized helium as an inhaled contrast agent has important research applications and clinical potential. Owing to the limited availability of hyperpolarized helium, this type of imaging has not been performed in the human lung outside of North America or Europe. The objective of this study was to test the feasibility of imaging human lungs in Australia using hyperpolarized helium gas imported from Germany. Methods:  A Bruker 2‐Tesla whole‐body magnetic resonance scanner located in Brisbane, Australia was adapted with a helium‐3 radiofrequency transceiver coil. Helium‐3 was hyperpolarized to 72% in Mainz, Germany and airfreighted to Brisbane. The time taken for the journey was 32 h and scanning was performed 36–40 h after departure from Mainz, with an estimated polarization level of 44%. Procedures were developed to transfer 300 mL of the hyperpolarized helium to Tedlar bags filled with 700 mL of nitrogen. Healthy volunteers inhaled the 1 L helium/nitrogen mixture from FRC, and imaging was performed with a 10 s breathhold. Results:  Imaging showed very detailed and even ventilation of all regions of the lung with a good signal‐to‐noise ratio. No adverse effects of inhaling the gas mixture were noted. Conclusions:  This report of MRI of the human lung using hyperpolarized helium demonstrates the feasibility of long distance gas transport from Germany to Australia. This will help to facilitate research and clinical application of this innovative functional lung imaging technique.
doi_str_mv 10.1111/j.1440-1843.2008.01262.x
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Owing to the limited availability of hyperpolarized helium, this type of imaging has not been performed in the human lung outside of North America or Europe. The objective of this study was to test the feasibility of imaging human lungs in Australia using hyperpolarized helium gas imported from Germany. Methods:  A Bruker 2‐Tesla whole‐body magnetic resonance scanner located in Brisbane, Australia was adapted with a helium‐3 radiofrequency transceiver coil. Helium‐3 was hyperpolarized to 72% in Mainz, Germany and airfreighted to Brisbane. The time taken for the journey was 32 h and scanning was performed 36–40 h after departure from Mainz, with an estimated polarization level of 44%. Procedures were developed to transfer 300 mL of the hyperpolarized helium to Tedlar bags filled with 700 mL of nitrogen. Healthy volunteers inhaled the 1 L helium/nitrogen mixture from FRC, and imaging was performed with a 10 s breathhold. 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source Wiley-Blackwell Read & Publish Collection
subjects Administration, Inhalation
Adult
Australia
Aviation
Contrast Media - administration & dosage
Diagnostic Services - organization & administration
Feasibility Studies
gas transport
Germany
Helium - administration & dosage
Humans
hyperpolarized helium
Isotopes
Magnetic Resonance Imaging - methods
magnetic resonance lung imaging
Male
title Feasibility of functional magnetic resonance lung imaging in Australia with long distance transport of hyperpolarized helium from Germany
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