dc.creator | KOENIGKAM-SANTOS, Marcel | |
dc.creator | SHARMA, Puneet | |
dc.creator | KALB, Bobby | |
dc.creator | CAREW, John | |
dc.creator | OSHINSKI, John N. | |
dc.creator | MARTIN, Diego | |
dc.date.accessioned | 2012-10-19T23:34:19Z | |
dc.date.accessioned | 2018-07-04T15:19:45Z | |
dc.date.available | 2012-10-19T23:34:19Z | |
dc.date.available | 2018-07-04T15:19:45Z | |
dc.date.created | 2012-10-19T23:34:19Z | |
dc.date.issued | 2009 | |
dc.identifier | JOURNAL OF MAGNETIC RESONANCE IMAGING, v.29, n.6, p.1450-1456, 2009 | |
dc.identifier | 1053-1807 | |
dc.identifier | http://producao.usp.br/handle/BDPI/24923 | |
dc.identifier | 10.1002/jmri.21777 | |
dc.identifier | http://dx.doi.org/10.1002/jmri.21777 | |
dc.identifier.uri | http://repositorioslatinoamericanos.uchile.cl/handle/2250/1621649 | |
dc.description.abstract | Purpose: To quantitatively evaluate changes induced by the application of a femoral blood-pressure cuff (BPC) on run-off magnetic resonance angiography (MRA). which is a method generally previously proposed to reduce venous contamination in the leg. Materials and Methods: This study was Health Insurance Portability and Accountability Act (HIPAA)- and Institutional Review Board (IRB)-compliant, We used time-resolved gradient-echo gadolinium (Gd)-enhanced MRA to measure BPC effects on arterial, venous, and soft-tissue enhancement. Seven healthy volunteers (six men) were studied with the BPC applied at the mid-femoral level unilaterally using a 1.5T MR system after intravenous injection of Gd-BOPTA. Different statistical tools were used such as the Wilcoxon signed rank test and a cubic smoothing spline fit. Results: We found that BPC application induces delayed venous filling (as previously described), but also induces significant decreases in arterial inflow, arterial enhancement, vascular-soft tissue contrast, and delayed peak enhancement (which have not been previously measured). Conclusion: The potential benefits from using a BPC for run-off MRA must be balanced against the potential pitfalls, elucidated by our findings. | |
dc.language | eng | |
dc.publisher | JOHN WILEY & SONS INC | |
dc.relation | Journal of Magnetic Resonance Imaging | |
dc.rights | Copyright JOHN WILEY & SONS INC | |
dc.rights | restrictedAccess | |
dc.subject | magnetic resonance angiography | |
dc.subject | MRA | |
dc.subject | run-off MRA | |
dc.subject | time-resolved imaging | |
dc.subject | venous contamination | |
dc.subject | gadolinium | |
dc.title | Lower Extremities Magnetic Resonance Angiography With Blood Pressure Cuff Compression: Quantitative Dynamic Analysis | |
dc.type | Artículos de revistas | |