Chest-MRI under pulsatile flow ventilation: A new promising technique.

Details

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State: Public
Version: author
License: CC BY 4.0
Serval ID
serval:BIB_61A86B64EF6E
Type
Article: article from journal or magazin.
Collection
Publications
Institution
Title
Chest-MRI under pulsatile flow ventilation: A new promising technique.
Journal
PloS one
Author(s)
Beigelman-Aubry C., Peguret N., Stuber M., Delacoste J., Belmondo B., Lovis A., Simons J., Long O., Grant K., Berchier G., Rohner C., Bonanno G., Coppo S., Schwitter J., Ozsahin M., Qanadli S., Meuli R., Bourhis J.
ISSN
1932-6203 (Electronic)
ISSN-L
1932-6203
Publication state
Published
Issued date
2017
Peer-reviewed
Oui
Volume
12
Number
6
Pages
e0178807
Language
english
Notes
Publication types: Journal Article
Publication Status: epublish
Abstract
Magnetic resonance imaging (MRI) of the chest has long suffered from its sensitivity to respiratory and cardiac motion with an intrinsically low signal to noise ratio and a limited spatial resolution. The purpose of this study was to perform chest MRI under an adapted non invasive pulsatile flow ventilation system (high frequency percussive ventilation, HFPV®) allowing breath hold durations 10 to 15 times longer than other existing systems.
One volunteer and one patient known for a thymic lesion underwent a chest MRI under ventilation percussion technique (VP-MR). Routinely used sequences were performed with and without the device during three sets of apnoea on inspiration.
VP-MR was well tolerated in both cases. The mean duration of the thoracic stabilization was 10.5 min (range 8.5-12) and 5.8 min (range 5-6.2) for Volunteer 1 and Patient 1, respectively. An overall increased image quality was seen under VP-MR with a better delineation of the mediastinal lesion for Patient 1. Nodules discovered in Volunteer 1 were confirmed with low dose CT.
VP-MR was feasible and increased spatial resolution of chest MRI by allowing acquisition at full inspiration during thoracic stabilization approaching prolonged apnoea. This new technique could be of benefit to numerous thoracic disorders.
Keywords
Adult, Humans, Magnetic Resonance Imaging/methods, Mediastinum/diagnostic imaging, Mediastinum/pathology, Middle Aged, Pulmonary Ventilation, Pulsatile Flow, Thorax/diagnostic imaging, Thymus Gland/diagnostic imaging, Thymus Gland/pathology, Tomography, X-Ray Computed
Pubmed
Web of science
Open Access
Yes
Create date
19/06/2017 10:38
Last modification date
30/04/2021 6:36
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