Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 신태훈 | * |
dc.date.accessioned | 2020-07-10T16:30:12Z | - |
dc.date.available | 2020-07-10T16:30:12Z | - |
dc.date.issued | 2020 | * |
dc.identifier.issn | 0740-3194 | * |
dc.identifier.issn | 1522-2594 | * |
dc.identifier.other | OAK-27072 | * |
dc.identifier.uri | https://dspace.ewha.ac.kr/handle/2015.oak/254112 | - |
dc.description.abstract | Purpose: Most existing non-contrast-enhanced methods for abdominal MR arteriography rely on a spatially selective inversion (SSI) pulse with a delay to null both static tissue and venous blood, and are limited to small spatial coverage due to the sensitivity to slow arterial inflow. Velocity-selective inversion (VSI) based approach has been shown to preserve the arterial blood inside the imaging volume at 1.5 T. Recently, velocity-selective saturation (VSS) pulse trains were applied to suppress the static tissue and have been combined with SSI pulses for cerebral MR arteriography at 3 T. The aim of this study is to construct an abdominal MRA protocol with large spatial coverage at 3 T using advanced velocity-selective pulse trains. Methods: Multiple velocity-selective MRA protocols with different sequence modules and 3D acquisition methods were evaluated. Sequences using VSS only as well as SSI+VSS and VSI+VSS preparations were then compared among a group of healthy young and middle-aged volunteers. Using MRA without any preparations as reference, relative signal ratios and relative contrast ratios of different vascular segments were quantitatively analyzed. Results: Both SSI+VSS and VSI+VSS arteriograms achieved high artery-to-tissue and artery-to-vein relative contrast ratios above aortic bifurcation. The SSI+VSS sequence yielded lower signal at the bilateral iliac arteries than VSI+VSS, reflecting the benefit of the VSI preparation for imaging the distal branches. Conclusion: The feasibility of noncontrast 3D MR abdominal arteriography was demonstrated on healthy volunteers using a combination of VSS pulse trains and SSI or VSI pulse. | * |
dc.language | English | * |
dc.publisher | WILEY | * |
dc.subject | abdominal MRA | * |
dc.subject | arteriography | * |
dc.subject | non-contrast-enhanced MRA | * |
dc.subject | velocity-selective pulse train | * |
dc.title | Non-contrast-enhanced abdominal MRA at 3 T using velocity-selective pulse trains | * |
dc.type | Article | * |
dc.relation.issue | 3 | * |
dc.relation.volume | 84 | * |
dc.relation.index | SCIE | * |
dc.relation.index | SCOPUS | * |
dc.relation.startpage | 1173 | * |
dc.relation.lastpage | 1183 | * |
dc.relation.journaltitle | MAGNETIC RESONANCE IN MEDICINE | * |
dc.identifier.doi | 10.1002/mrm.28187 | * |
dc.identifier.wosid | WOS:000565929300007 | * |
dc.identifier.scopusid | 2-s2.0-85085862419 | * |
dc.author.google | Zhu, Dan | * |
dc.author.google | Li, Wenbo | * |
dc.author.google | Liu, Dapeng | * |
dc.author.google | Liu, Guanshu | * |
dc.author.google | Pei, Yigang | * |
dc.author.google | Shin, Taehoon | * |
dc.author.google | Sedaghat, Farzad | * |
dc.author.google | Qin, Qin | * |
dc.contributor.scopusid | 신태훈(15061749900) | * |
dc.date.modifydate | 20240322132527 | * |