Abstract TMP108: Evaluation of Cerebral Arteriovenous Malformations using Flow Distribution Network Graphs and Dual-VENC 4D Flow MRI

Stroke ◽  
2019 ◽  
Vol 50 (Suppl_1) ◽  
Author(s):  
Maria Aristova ◽  
Alireza Vali ◽  
Sameer Ansari ◽  
Ali Shaibani ◽  
Babak Jahromi ◽  
...  
Keyword(s):  
Arteriovenous Malformations ◽  
Distribution Network ◽  
Flow Distribution ◽  
Cerebral Arteriovenous Malformations ◽  
4D Flow Mri ◽  
4D Flow ◽  
Flow Mri

scholarly journals Standardized Evaluation of Cerebral Arteriovenous Malformations Using Flow Distribution Network Graphs and Dual‐ venc 4D Flow MRI

2019 ◽  
Vol 50 (6) ◽  
pp. 1718-1730 ◽  
Author(s):  
Maria Aristova ◽  
Alireza Vali ◽  
Sameer A. Ansari ◽  
Ali Shaibani ◽  
Tord D. Alden ◽  
...  
Keyword(s):  
Arteriovenous Malformations ◽  
Distribution Network ◽  
Flow Distribution ◽  
Cerebral Arteriovenous Malformations ◽  
4D Flow Mri ◽  
4D Flow ◽  
Flow Mri

scholarly journals Standardized Evaluation of Cerebral Arteriovenous Malformations Using Flow Distribution Network Graphs and Dual‐ venc 4D Flow MRI

2019 ◽  
Vol 50 (6) ◽  
Author(s):  
Maria Aristova ◽  
Alireza Vali ◽  
Sameer A. Ansari ◽  
Ali Shaibani ◽  
Tord D. Alden ◽  
...  
Keyword(s):  
Arteriovenous Malformations ◽  
Distribution Network ◽  
Flow Distribution ◽  
Cerebral Arteriovenous Malformations ◽  
4D Flow Mri ◽  
4D Flow ◽  
Flow Mri

Usefulness of 4D-Flow MRI in Mapping Flow Distribution Through Failing Fontan Circulation Prior to Cardiac Intervention

2019 ◽  
Vol 40 (5) ◽  
pp. 1093-1096 ◽  
Author(s):  
Daniel McLennan ◽  
Michal Schäfer ◽  
Max B. Mitchell ◽  
Gareth J. Morgan ◽  
Dunbar Ivy ◽  
...  
Keyword(s):  
Flow Distribution ◽  
Fontan Circulation ◽  
4D Flow Mri ◽  
4D Flow ◽  
Cardiac Intervention ◽  
Flow Mri ◽  
Failing Fontan

scholarly journals Reduced scan time and superior image quality with 3D flow MRI compared to 4D flow MRI for hemodynamic evaluation of the Fontan pathway

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Friso M. Rijnberg ◽  
Hans C. van Assen ◽  
Joe F. Juffermans ◽  
Lucia J. M. Kroft ◽  
Pieter J. van den Boogaard ◽  
...  
Keyword(s):  
Flow Distribution ◽  
Clinical Parameters ◽  
4D Flow Mri ◽  
3D Flow ◽  
4D Flow ◽  
Flow Rates ◽  
Pulmonary Flow ◽  
Scan Time ◽  
Flow Mri ◽  
Fontan Patients

AbstractLong scan times prohibit a widespread clinical applicability of 4D flow MRI in Fontan patients. As pulsatility in the Fontan pathway is minimal during the cardiac cycle, acquiring non-ECG gated 3D flow MRI may result in a reduction of scan time while accurately obtaining time-averaged clinical parameters in comparison with 2D and 4D flow MRI. Thirty-two Fontan patients prospectively underwent 2D (reference), 3D and 4D flow MRI of the Fontan pathway. Multiple clinical parameters were assessed from time-averaged flow rates, including the right-to-left pulmonary flow distribution (main endpoint) and systemic-to-pulmonary collateral flow (SPCF). A ten-fold reduction in scan time was achieved [4D flow 15.9 min (SD 2.7 min) and 3D flow 1.6 min (SD 7.8 s), p < 0.001] with a superior signal-to-noise ratio [mean ratio of SNRs 1.7 (0.8), p < 0.001] and vessel sharpness [mean ratio 1.2 (0.4), p = 0.01] with 3D flow. Compared to 2D flow, good–excellent agreement was shown for mean flow rates (ICC 0.82–0.96) and right-to-left pulmonary flow distribution (ICC 0.97). SPCF derived from 3D flow showed good agreement with that from 4D flow (ICC 0.86). 3D flow MRI allows for obtaining time-averaged flow rates and derived clinical parameters in the Fontan pathway with good–excellent agreement with 2D and 4D flow, but with a tenfold reduction in scan time and significantly improved image quality compared to 4D flow.

scholarly journals Caval to pulmonary 3D flow distribution in patients with Fontan circulation and impact of potential 4D flow MRI error sources

2018 ◽  
Vol 81 (2) ◽  
pp. 1205-1218 ◽  
Author(s):  
Kelly Jarvis ◽  
Susanne Schnell ◽  
Alex J. Barker ◽  
Michael Rose ◽  
Joshua D. Robinson ◽  
...  
Keyword(s):  
Flow Distribution ◽  
Fontan Circulation ◽  
4D Flow Mri ◽  
3D Flow ◽  
4D Flow ◽  
Error Sources ◽  
Flow Mri

4D-Flow MRI: Beyond the Images

2020 ◽  
Vol 32 (1) ◽  
pp. 35
Author(s):  
Pietro Sergio ◽  
Antonio Miceli
Keyword(s):  
4D Flow Mri ◽  
4D Flow ◽  
Flow Mri
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