The effects of incomplete breath-holding on 3D MR Image Quality
dc.contributor.author | Maki, Jeffrey H. | en_US |
dc.contributor.author | Chenevert, Thomas L. | en_US |
dc.contributor.author | Prince, Martin R. | en_US |
dc.date.accessioned | 2006-04-28T17:05:14Z | |
dc.date.available | 2006-04-28T17:05:14Z | |
dc.date.issued | 1997-11 | en_US |
dc.identifier.citation | Maki, Jeffrey H.; Chenevert, Thomas L.; Prince, Martin R. (1997)."The effects of incomplete breath-holding on 3D MR Image Quality." Journal of Magnetic Resonance Imaging 7(6): 1132-1139. <http://hdl.handle.net/2027.42/38577> | en_US |
dc.identifier.issn | 1053-1807 | en_US |
dc.identifier.issn | 1522-2586 | en_US |
dc.identifier.uri | https://hdl.handle.net/2027.42/38577 | |
dc.identifier.uri | http://www.ncbi.nlm.nih.gov/sites/entrez?cmd=retrieve&db=pubmed&list_uids=9400859&dopt=citation | en_US |
dc.description.abstract | The purpose of this study was to investigate how fast three-dimensional (3D) MR image quality is affected by breath-holding and to develop an optimal breath-holding strategy that minimizes artifact in the event of an incomplete breath-hold. A computer model was developed to study variable-duration breath-holds during fast 3D imaging. Modeling was validated by 3D gradient-echo imaging performed on 10 volunteers. Signal-to-noise ratio (SNR) and image blur were measured for both simulated and clinical images. Insights gained were applied to clinical 3D gadolinium-enhanced MR angiography. Breath-holding significantly improved abdominal 3D MR image quality. Most of this benefit could be achieved with a breath-hold fraction of 50% if it occurred during acquisition of central k space. Breath-holding during peripheral k-space acquisition, however, had no significant benefit. Respiratory motion artifact on fast 3D MRI occurring when a patient fails to suspend respiration for the entire scan duration can be minimized by collecting central k space first (centric acquisition) so that premature breathing affects only the acquisition of peripheral k space. | en_US |
dc.format.extent | 2129367 bytes | |
dc.format.extent | 3118 bytes | |
dc.format.mimetype | application/pdf | |
dc.format.mimetype | text/plain | |
dc.language.iso | en_US | |
dc.publisher | Wiley Subscription Services, Inc., A Wiley Company | en_US |
dc.subject.other | Life and Medical Sciences | en_US |
dc.subject.other | Imaging | en_US |
dc.title | The effects of incomplete breath-holding on 3D MR Image Quality | en_US |
dc.type | Article | en_US |
dc.rights.robots | IndexNoFollow | en_US |
dc.subject.hlbsecondlevel | Medicine (General) | en_US |
dc.subject.hlbtoplevel | Health Sciences | en_US |
dc.description.peerreviewed | Peer Reviewed | en_US |
dc.contributor.affiliationum | University of Michigan, Department of Radiology, Division of MRI, University Hospital Box 0030, Ann Arbor, MI 48109-0030 ; University of Michigan, Department of Radiology, Division of MRI, University Hospital Box 0030, Ann Arbor, MI 48109-0030 | en_US |
dc.contributor.affiliationum | University of Michigan, Department of Radiology, Division of MRI, University Hospital Box 0030, Ann Arbor, MI 48109-0030 | en_US |
dc.contributor.affiliationum | University of Michigan, Department of Radiology, Division of MRI, University Hospital Box 0030, Ann Arbor, MI 48109-0030 | en_US |
dc.identifier.pmid | 9400859 | en_US |
dc.description.bitstreamurl | http://deepblue.lib.umich.edu/bitstream/2027.42/38577/1/1880070628_ftp.pdf | en_US |
dc.identifier.doi | http://dx.doi.org/10.1002/jmri.1880070628 | en_US |
dc.identifier.source | Journal of Magnetic Resonance Imaging | en_US |
dc.owningcollname | Interdisciplinary and Peer-Reviewed |
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