Showing 2 Abstracts.
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Analyzing Flow Distribution Among Twins uUsing PC-MRI Quantification of Fetal Aortic flow in Early Gestational Age Twin Pregnancies Complicated by TTTS and sIUGR
Barhaghi Krystle, Schuchardt Eleanor, Schafer Michal, Meyers Mariana, Behrendt Nicholas, Barker Alex, Cuneo Bettina, Friesen Richard, Browne Lorna
Final Pr. ID: Paper #: 102
Previous studies show that phase contrast MRI (PC-MRI) can successfully measure fetal blood flow in late gestation singleton fetuses. To date there is a paucity of data quantifying fetal blood flow of twin or early gestational age pregnancies (~19 weeks). Twin-twin transfusion syndrome (TTTS) is a rare complication of monochorionic pregnancies that is believed to result from inequal flow distribution between fetuses. In this novel investigation, we utilized PC-MRI to investigate fetal aortic flow in early gestational age fetuses with TTTS or selective Intrauterine Growth Restriction (sIUGR). We compared flow distribution between the smaller and larger fetus in each twin pair. Read More
Authors: Barhaghi Krystle , Schuchardt Eleanor , Schafer Michal , Meyers Mariana , Behrendt Nicholas , Barker Alex , Cuneo Bettina , Friesen Richard , Browne Lorna
Keywords: Fetal MRI, Twins, Phase Contrast MRI
Optimizing the Dose of a High-Relaxivity Gadolinium-based Contrast Agent in Pediatric Joint Magnetic Resonance Arthrography
Arellano Cameron, Colon Rodney, Hobollah Sarah, Bhandari Prajwal, Ghaghada Ketan, Annapragada Ananth, Badachhape Andrew
Final Pr. ID: Poster #: SCI-055
High T1 and T2 relaxivity macrocyclic gadolinium-based contrast agents (GBCAs), including gadopiclenol, have the potential to improve contrast-enhanced MRI while minimizing Gd dose. However, administered at low volumes in pediatric joint arthrography, the in vivo concentration of GBCA is variable due to pathological and anatomical volume differences. Concentration variations in conjunction with rapid T2 decay inherent to highly relaxive GBCAs can result in variable signal. To determine optimal dosages, we tested concentration-dependent signal changes in phantom studies with T1-weighted (T1w) and T2-weighted (T2w) sequences commonly used in clinical arthrogram studies. Read More
Authors: Arellano Cameron , Colon Rodney , Hobollah Sarah , Bhandari Prajwal , Ghaghada Ketan , Annapragada Ananth , Badachhape Andrew
Keywords: Arthrography, Contrast MRI, Glenohumeral