scholarly journals Use of Non-Invasive Phase Contrast Magnetic Resonance Imaging for Estimation of Atrial Septal Defect Size and Morphology: A Comparison with Transesophageal Echo

2005 ◽  
Vol 29 (2) ◽  
pp. 230-234 ◽  
Author(s):  
Chin Sze Piaw ◽  
Ong Tiong Kiam ◽  
Annuar Rapaee ◽  
Liew Chee Khoon ◽  
Liew Houng Bang ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Atrial Septal Defect ◽  
Phase Contrast ◽  
Septal Defect ◽  
Defect Size ◽  
Resonance Imaging ◽  
Non Invasive ◽  
Contrast Magnetic Resonance ◽  
Size And Morphology

scholarly journals Phase-contrast magnetic resonance imaging to assess renal perfusion: a systematic review and statement paper

2019 ◽  
Vol 33 (1) ◽  
pp. 3-21 ◽  
Author(s):  
Giulia Villa ◽  
Steffen Ringgaard ◽  
Ingo Hermann ◽  
Rebecca Noble ◽  
Paolo Brambilla ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Systematic Review ◽  
Blood Flow ◽  
Clinical Practice ◽  
Magnetic Resonance ◽  
Kidney Disease ◽  
Phase Contrast ◽  
Resonance Imaging ◽  
Non Invasive ◽  
Contrast Magnetic Resonance

Abstract Objective Phase-contrast magnetic resonance imaging (PC-MRI) is a non-invasive method used to compute blood flow velocity and volume. This systematic review aims to discuss the current status of renal PC-MRI and provide practical recommendations which could inform future clinical studies and its adoption in clinical practice. Methodology A comprehensive search of all the PC-MRI studies in human healthy subjects or patients related to the kidneys was performed. Results A total of 39 studies were included in which PC-MRI was used to measure renal blood flow (RBF) alongside other derivative hemodynamic parameters. PC-MRI generally showed good correlation with gold standard methods of RBF measurement, both in vitro and in vivo, and good reproducibility. Despite PC-MRI not being routinely used in clinical practice, there are several clinical studies showing its potential to support diagnosis and monitoring of renal diseases, in particular renovascular disease, chronic kidney disease and autosomal dominant polycystic kidney disease. Discussion Renal PC-MRI shows promise as a non-invasive technique to reliably measure RBF, both in healthy volunteers and in patients with renal disease. Future multicentric studies are needed to provide definitive normative ranges and to demonstrate the clinical potential of PC-MRI, likely as part of a multi-parametric renal MRI protocol.

scholarly journals Determination of atrial septal defect size by nuclear magnetic resonance imaging

1991 ◽  
Vol 17 (2) ◽  
pp. A326
Author(s):  
Godtfred Holmvang ◽  
Richard Liberthson ◽  
Gus Vlahakes ◽  
Igor F. Palacios ◽  
Howard E. Waldman ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Nuclear Magnetic Resonance ◽  
Magnetic Resonance ◽  
Atrial Septal Defect ◽  
Septal Defect ◽  
Defect Size ◽  
Nuclear Magnetic Resonance Imaging ◽  
Resonance Imaging ◽  
Nuclear Magnetic

scholarly journals Non-invasive assessment of pulsatile intracranial pressure with phase-contrast magnetic resonance imaging

PLoS ONE ◽  
2017 ◽  
Vol 12 (11) ◽  
pp. e0188896 ◽  
Author(s):  
Geir Ringstad ◽  
Erika Kristina Lindstrøm ◽  
Svein Are Sirirud Vatnehol ◽  
Kent-André Mardal ◽  
Kyrre Eeg Emblem ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Intracranial Pressure ◽  
Phase Contrast ◽  
Resonance Imaging ◽  
Non Invasive ◽  
Contrast Magnetic Resonance Imaging ◽  
Phase Contrast Magnetic Resonance ◽  
Contrast Magnetic Resonance

Measurement of Absolute Epicardial Coronary Artery Flow and Flow Reserve With Breath-Hold Cine Phase-Contrast Magnetic Resonance Imaging

Circulation ◽  
1995 ◽  
Vol 91 (10) ◽  
pp. 2627-2634 ◽  
Author(s):  
Geoffrey D. Clarke ◽  
Robin Eckels ◽  
Curtis Chaney ◽  
Dorothy Smith ◽  
Jason Dittrich ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Coronary Artery ◽  
Magnetic Resonance ◽  
Phase Contrast ◽  
Breath Hold ◽  
Resonance Imaging ◽  
Flow Reserve ◽  
Contrast Magnetic Resonance ◽  
Artery Flow ◽  
Cine Phase Contrast

In Vivo Tracking of the Human Patella Using Cine Phase Contrast Magnetic Resonance Imaging

1999 ◽  
Vol 121 (6) ◽  
pp. 650-656 ◽  
Author(s):  
F. T. Sheehan ◽  
F. E. Zajac ◽  
J. E. Drace
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Knee Joint ◽  
Phase Contrast ◽  
Three Dimensional ◽  
Resonance Imaging ◽  
Contrast Magnetic Resonance ◽  
Knee Joint Kinematics ◽  
Cine Phase Contrast

Improper patellar tracking is often considered to be the cause of patellar-femoral pain. Unfortunately, our knowledge of patellar-femoral-tibial (knee) joint kinematics is severely limited due to a lack of three-dimensional, noninvasive, in vivo measurement techniques. This study presents the first large-scale, dynamic, three-dimensional, noninvasive, in vivo study of nonimpaired knee joint kinematics during volitional leg extensions. Cine-phase contrast magnetic resonance imaging was used to measure the velocity profiles of the patella, femur, and tibia in 18 unimpaired knees during leg extensions, resisted by a 34 N weight. Bone displacements were calculated through integration and then converted into three-dimensional orientation angles. We found that the patella displaced laterally, superiorly, and anteriorly as the knee extended. Further, patellar flexion lagged knee flexion, patellar tilt was variable, and patellar rotation was fairly constant throughout extension.

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