Pulmonary perfusion MRI using interleaved variable density sampling and HighlY constrained cartesian reconstruction (HYCR). Issue 3 (24th January 2013)

• Record Type: Journal Article
• Authors: Wang, Kang; Schiebler, Mark L.; Francois, Christopher J.; Del Rio, A. Munoz; Cornejo, Ma. Daniela; Bell, Laura C.; Korosec, Frank R.; Brittain, Jean H.; Holmes, James H.; Nagle, Scott K.
• Is Part Of: Journal of magnetic resonance imaging. Volume 38:Issue 3(2013)
• Page Start: 751
• Page End: 756
• Publication Date: 2013-01-24
• Subjects: Magnetic resonance imaging -- Periodicals; 616
• DOI: 10.1002/jmri.24018
• Languages: English
• ISSNs: 1053-1807

Abstract

<abstract abstract-type="main"> <title> <x xml:space="preserve">Abstract</x> </title> <sec id="jmri24018-sec-0001" sec-type="section"> <title>Purpose:</title> <p>To demonstrate the feasibility of performing single breathhold, noncardiac gated, ultrafast, high spatial‐temporal resolution whole chest MR pulmonary perfusion imaging in humans.</p> </sec> <sec id="jmri24018-sec-0002" sec-type="section"> <title>Materials and Methods:</title> <p>Eight subjects (five male, three female) were scanned with the proposed method on a 3 Tesla clinical scanner using a 32‐channel phased‐array coil. Seven (88%) were healthy volunteers, and one was a patient volunteer with sarcoidosis. The peak lung enhancement phase for each subject was scored for gravitational effect, peak parenchymal enhancement and severity of artifacts by three cardiothoracic radiologists independently.</p> </sec> <sec id="jmri24018-sec-0003" sec-type="section"> <title>Results:</title> <p>All studies were successfully performed by MR technologists without any additional training. Mean parenchymal signal was very good, measuring 0.78 ± 0.13 (continuous scale, 0 = "none" → 1 = "excellent"). Mean level of motion artifacts was low, measuring 0.13 ± 0.08 (continuous scale, 0 = "none" → 1 = "severe").</p> </sec> <sec id="jmri24018-sec-0004" sec-type="section"> <title>Conclusion:</title> <p>It is feasible to perform single breathhold, noncardiac gated, ultrafast, high spatial‐temporal resolution whole chest MR pulmonary perfusion imaging in humans. <bold>J. Magn. Reson. Imaging 2013;38:751–756. © 2013 Wiley Periodicals, Inc.</bold></p> </sec> </abstract>