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On the 'cusp' of clinical feasibility: aortic wall shear stress derived non-invasively with 4D flow MRI.

Bollache E, Fedak PWM, Markl M, Barker AJ.

J Thorac Dis. 2019 Jul;11(7):E96-E97. doi: 10.21037/jtd.2019.06.54. No abstract available.


Defect Activity in Metal-Halide Perovskites.

Motti SG, Meggiolaro D, Martani S, Sorrentino R, Barker AJ, De Angelis F, Petrozza A.

Adv Mater. 2019 Aug 18:e1901183. doi: 10.1002/adma.201901183. [Epub ahead of print] Review.


Intracardiac 4D Flow MRI in Congenital Heart Disease: Recommendations on Behalf of the ISMRM Flow & Motion Study Group.

Zhong L, Schrauben EM, Garcia J, Uribe S, Grieve SM, Elbaz MSM, Barker AJ, Geiger J, Nordmeyer S, Marsden A, Carlsson M, Tan RS, Garg P, Westenberg JJM, Markl M, Ebbers T.

J Magn Reson Imaging. 2019 Sep;50(3):677-681. doi: 10.1002/jmri.26858. Epub 2019 Jul 17.


Effect of Aortic Valve Disease on 3D Hemodynamics in Patients With Aortic Dilation and Trileaflet Aortic Valve Morphology.

Suwa K, Rahman OA, Bollache E, Rose MJ, Rahsepar AA, Carr JC, Collins JD, Barker AJ, Markl M.

J Magn Reson Imaging. 2019 Jun 6. doi: 10.1002/jmri.26804. [Epub ahead of print]


Rapid molecular evolution of pain insensitivity in multiple African rodents.

Eigenbrod O, Debus KY, Reznick J, Bennett NC, Sánchez-Carranza O, Omerbašić D, Hart DW, Barker AJ, Zhong W, Lutermann H, Katandukila JV, Mgode G, Park TJ, Lewin GR.

Science. 2019 May 31;364(6443):852-859. doi: 10.1126/science.aau0236.


Interval changes in aortic peak velocity and wall shear stress in patients with bicuspid aortic valve disease.

Rahman O, Scott M, Bollache E, Suwa K, Collins J, Carr J, Fedak P, McCarthy P, Malaisrie C, Barker AJ, Markl M.

Int J Cardiovasc Imaging. 2019 May 29. doi: 10.1007/s10554-019-01632-7. [Epub ahead of print]


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

McLennan D, Schäfer M, Mitchell MB, Morgan GJ, Ivy D, Barker AJ, Jacobsen R.

Pediatr Cardiol. 2019 Jun;40(5):1093-1096. doi: 10.1007/s00246-019-02101-7. Epub 2019 Apr 13.


High Exciton Diffusion Coefficients in Fused Ring Electron Acceptor Films.

Chandrabose S, Chen K, Barker AJ, Sutton JJ, Prasad SKK, Zhu J, Zhou J, Gordon KC, Xie Z, Zhan X, Hodgkiss JM.

J Am Chem Soc. 2019 May 1;141(17):6922-6929. doi: 10.1021/jacs.8b12982. Epub 2019 Apr 22.


Imaging photoinduced surface potentials on hybrid perovskites by real-time Scanning Electron Microscopy.

Irde G, Pietralunga SM, Sala V, Zani M, Ball JM, Barker AJ, Petrozza A, Lanzani G, Tagliaferri A.

Micron. 2019 Jun;121:53-65. doi: 10.1016/j.micron.2019.03.002. Epub 2019 Mar 20.


Differences in pulmonary arterial flow hemodynamics between children and adults with pulmonary arterial hypertension as assessed by 4D-flow CMR studies.

Schäfer M, Ivy DD, Abman SH, Stenmark K, Browne LP, Barker AJ, Mitchell MB, Morgan GJ, Wilson N, Shah A, Kollengode M, Naresh N, Fonseca B, DiMaria M, Buckner JK, Hunter KS, Kheyfets V, Fenster BE, Truong U.

Am J Physiol Heart Circ Physiol. 2019 May 1;316(5):H1091-H1104. doi: 10.1152/ajpheart.00802.2018. Epub 2019 Mar 1.


Aortic 4D flow MRI in 2 minutes using compressed sensing, respiratory controlled adaptive k-space reordering, and inline reconstruction.

Ma LE, Markl M, Chow K, Huh H, Forman C, Vali A, Greiser A, Carr J, Schnell S, Barker AJ, Jin N.

Magn Reson Med. 2019 Jun;81(6):3675-3690. doi: 10.1002/mrm.27684. Epub 2019 Feb 25.


The Role of Imaging of Flow Patterns by 4D Flow MRI in Aortic Stenosis.

Garcia J, Barker AJ, Markl M.

JACC Cardiovasc Imaging. 2019 Feb;12(2):252-266. doi: 10.1016/j.jcmg.2018.10.034. Review.


Lead and antimony from bullet weathering in newly constructed target berms: Chemical speciation, mobilization, and remediation strategies.

Barker AJ, Douglas TA, Ilgen AG, Trainor TP.

Sci Total Environ. 2019 Mar 25;658:558-569. doi: 10.1016/j.scitotenv.2018.12.188. Epub 2018 Dec 13.


4-D flow magnetic-resonance-imaging-derived energetic biomarkers are abnormal in children with repaired tetralogy of Fallot and associated with disease severity.

Robinson JD, Rose MJ, Joh M, Jarvis K, Schnell S, Barker AJ, Rigsby CK, Markl M.

Pediatr Radiol. 2019 Mar;49(3):308-317. doi: 10.1007/s00247-018-4312-8. Epub 2018 Dec 1.


Close look at the Potts shunt flow hemodynamics in a patient with severe pulmonary hypertension: 4D-flow MRI evaluation.

Schäfer M, Frank BS, Ivy DD, Wilson N, Morgan GJ, Barker AJ, Browne LP, Mitchell MB, Truong U.

J Magn Reson Imaging. 2019 Jun;49(6):1800-1802. doi: 10.1002/jmri.26554. Epub 2018 Nov 19. No abstract available.


Reduced proximal aortic compliance and elevated wall shear stress after early repair of tetralogy of Fallot.

Schäfer M, Browne LP, Morgan GJ, Barker AJ, Fonseca B, Ivy DD, Mitchell MB.

J Thorac Cardiovasc Surg. 2018 Dec;156(6):2239-2249. doi: 10.1016/j.jtcvs.2018.08.081. Epub 2018 Sep 21.


Altered Aortic 3-Dimensional Hemodynamics in Patients With Functionally Unicuspid Aortic Valves.

Ma LE, Vali A, Blanken C, Barker AJ, Malaisrie C, McCarthy P, Collins JD, Carr JC, Schnell S, Markl M.

Circ Cardiovasc Imaging. 2018 Aug;11(8):e007915. doi: 10.1161/CIRCIMAGING.118.007915. No abstract available.


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

Jarvis K, Schnell S, Barker AJ, Rose M, Robinson JD, Rigsby CK, Markl M.

Magn Reson Med. 2019 Feb;81(2):1205-1218. doi: 10.1002/mrm.27455. Epub 2018 Sep 15.


Aortic stenosis exacerbates flow aberrations related to the bicuspid aortic valve fusion pattern and the aortopathy phenotype.

Shan Y, Li J, Wang Y, Wu B, Barker AJ, Markl M, Wang C, Wang X, Shu X.

Eur J Cardiothorac Surg. 2019 Mar 1;55(3):534-542. doi: 10.1093/ejcts/ezy308.


4-D flow MRI aortic 3-D hemodynamics and wall shear stress remain stable over short-term follow-up in pediatric and young adult patients with bicuspid aortic valve.

Rose MJ, Rigsby CK, Berhane H, Bollache E, Jarvis K, Barker AJ, Schnell S, Allen BD, Robinson JD, Markl M.

Pediatr Radiol. 2019 Jan;49(1):57-67. doi: 10.1007/s00247-018-4257-y. Epub 2018 Sep 10.


Aortic valve-mediated wall shear stress is heterogeneous and predicts regional aortic elastic fiber thinning in bicuspid aortic valve-associated aortopathy.

Bollache E, Guzzardi DG, Sattari S, Olsen KE, Di Martino ES, Malaisrie SC, van Ooij P, Collins J, Carr J, McCarthy PM, Markl M, Barker AJ, Fedak PWM.

J Thorac Cardiovasc Surg. 2018 Dec;156(6):2112-2120.e2. doi: 10.1016/j.jtcvs.2018.05.095. Epub 2018 Jun 12.


The American Association for Thoracic Surgery consensus guidelines on bicuspid aortic valve-related aortopathy: Full online-only version.

Borger MA, Fedak PWM, Stephens EH, Gleason TG, Girdauskas E, Ikonomidis JS, Khoynezhad A, Siu SC, Verma S, Hope MD, Cameron DE, Hammer DF, Coselli JS, Moon MR, Sundt TM, Barker AJ, Markl M, Della Corte A, Michelena HI, Elefteriades JA.

J Thorac Cardiovasc Surg. 2018 Aug;156(2):e41-e74. doi: 10.1016/j.jtcvs.2018.02.115.


The American Association for Thoracic Surgery consensus guidelines on bicuspid aortic valve-related aortopathy: Executive summary.

Borger MA, Fedak PWM, Stephens EH, Gleason TG, Girdauskas E, Ikonomidis JS, Khoynezhad A, Siu SC, Verma S, Hope MD, Cameron DE, Hammer DF, Coselli JS, Moon MR, Sundt TM, Barker AJ, Markl M, Della Corte A, Michelena HI, Elefteriades JA.

J Thorac Cardiovasc Surg. 2018 Aug;156(2):473-480. doi: 10.1016/j.jtcvs.2017.10.161.


Noninvasive wave intensity analysis predicts functional worsening in children with pulmonary arterial hypertension.

Schäfer M, Wilson N, Ivy DD, Ing R, Abman S, Browne LP, Morgan G, Ross M, McLennan D, Barker AJ, Fonseca B, Di Maria M, Hunter KS, Truong U.

Am J Physiol Heart Circ Physiol. 2018 Oct 1;315(4):H968-H977. doi: 10.1152/ajpheart.00227.2018. Epub 2018 Jul 13.


Proximal pulmonary vascular stiffness as a prognostic factor in children with pulmonary arterial hypertension.

Friesen RM, Schäfer M, Ivy DD, Abman SH, Stenmark K, Browne LP, Barker AJ, Hunter KS, Truong U.

Eur Heart J Cardiovasc Imaging. 2019 Feb 1;20(2):209-217. doi: 10.1093/ehjci/jey069.


Children with kawasaki disease present elevated stiffness of great arteries: Phase-contrast MRI study.

Schäfer M, Truong U, Ivy DD, Fonseca B, Malone L, DiMaria M, Barker AJ, Vargas D, Hunter KS, Jone PN, Browne LP.

J Magn Reson Imaging. 2018 Nov;48(5):1228-1236. doi: 10.1002/jmri.26167. Epub 2018 Apr 29.


Aortic stiffness in adolescent Turner and Marfan syndrome patients.

Schäfer M, Browne LP, Truong U, Jaggers JJ, Mitchell MB, Malone L, Morgan G, Chatfield K, McLennan D, Turbendian H, Vargas D, Fonseca B, DiMaria M, Shah A, Ivy MP, Barker AJ, Hunter KS, Wilson N, Ivy DD, Campbell DN.

Eur J Cardiothorac Surg. 2018 Nov 1;54(5):926-932. doi: 10.1093/ejcts/ezy168.


Impact of different coarctation therapies on aortic stiffness: phase-contrast MRI study.

Schäfer M, Morgan GJ, Mitchell MB, Ross M, Barker AJ, Hunter KS, Fonseca B, DiMaria M, Vargas D, Ivy DD, Wilson N, Browne LP.

Int J Cardiovasc Imaging. 2018 Sep;34(9):1459-1469. doi: 10.1007/s10554-018-1357-6. Epub 2018 Apr 17.


Assessing wall stresses in bicuspid aortic valve-associated aortopathy: Forecasting the perfect storm?

Barker AJ, Markl M, Fedak PWM.

J Thorac Cardiovasc Surg. 2018 Aug;156(2):471-472. doi: 10.1016/j.jtcvs.2018.03.092. Epub 2018 Mar 31. No abstract available.


Helicity and Vorticity of Pulmonary Arterial Flow in Patients With Pulmonary Hypertension: Quantitative Analysis of Flow Formations.

Schäfer M, Barker AJ, Kheyfets V, Stenmark KR, Crapo J, Yeager ME, Truong U, Buckner JK, Fenster BE, Hunter KS.

J Am Heart Assoc. 2017 Dec 20;6(12). pii: e007010. doi: 10.1161/JAHA.117.007010.


Perioperative evaluation of regional aortic wall shear stress patterns in patients undergoing aortic valve and/or proximal thoracic aortic replacement.

Bollache E, Fedak PWM, van Ooij P, Rahman O, Malaisrie SC, McCarthy PM, Carr JC, Powell A, Collins JD, Markl M, Barker AJ.

J Thorac Cardiovasc Surg. 2018 Jun;155(6):2277-2286.e2. doi: 10.1016/j.jtcvs.2017.11.007. Epub 2017 Nov 16.


4D flow MRI, cardiac function, and T1 -mapping: Association of valve-mediated changes in aortic hemodynamics with left ventricular remodeling.

Geiger J, Rahsepar AA, Suwa K, Powell A, Ghasemiesfe A, Barker AJ, Collins JD, Carr JC, Markl M.

J Magn Reson Imaging. 2018 Jul;48(1):121-131. doi: 10.1002/jmri.25916. Epub 2017 Dec 5.


Quantitative magnetic resonance imaging phantoms: A review and the need for a system phantom.

Keenan KE, Ainslie M, Barker AJ, Boss MA, Cecil KM, Charles C, Chenevert TL, Clarke L, Evelhoch JL, Finn P, Gembris D, Gunter JL, Hill DLG, Jack CR Jr, Jackson EF, Liu G, Russek SE, Sharma SD, Steckner M, Stupic KF, Trzasko JD, Yuan C, Zheng J.

Magn Reson Med. 2018 Jan;79(1):48-61. doi: 10.1002/mrm.26982. Epub 2017 Oct 30. Review.


Reduced shear stress and associated aortic deformation in the thoracic aorta of patients with chronic obstructive pulmonary disease.

Schäfer M, Kheyfets VO, Barker AJ, Stenmark K, Hunter KS, McClatchey PM, Buckner JK, Reece TB, Jazaeri O, Fenster BE.

J Vasc Surg. 2018 Jul;68(1):246-253. doi: 10.1016/j.jvs.2017.06.110. Epub 2017 Oct 3.


Voxel-by-voxel 4D flow MRI-based assessment of regional reverse flow in the aorta.

Shen X, Schnell S, Barker AJ, Suwa K, Tashakkor L, Jarvis K, Carr JC, Collins JD, Prabhakaran S, Markl M.

J Magn Reson Imaging. 2018 May;47(5):1276-1286. doi: 10.1002/jmri.25862. Epub 2017 Sep 18.


Fluid- and Biomechanical Analysis of Ascending Thoracic Aorta Aneurysm with Concomitant Aortic Insufficiency.

Condemi F, Campisi S, Viallon M, Troalen T, Xuexin G, Barker AJ, Markl M, Croisille P, Trabelsi O, Cavinato C, Duprey A, Avril S.

Ann Biomed Eng. 2017 Dec;45(12):2921-2932. doi: 10.1007/s10439-017-1913-6. Epub 2017 Sep 13.


Aortic Valve Stenosis Alters Expression of Regional Aortic Wall Shear Stress: New Insights From a 4-Dimensional Flow Magnetic Resonance Imaging Study of 571 Subjects.

van Ooij P, Markl M, Collins JD, Carr JC, Rigsby C, Bonow RO, Malaisrie SC, McCarthy PM, Fedak PWM, Barker AJ.

J Am Heart Assoc. 2017 Sep 13;6(9). pii: e005959. doi: 10.1161/JAHA.117.005959.


Impact of a Nurse Residency Program on Transition to Specialty Practice.

Boyer SA, Valdez-Delgado KK, Huss JL, Barker AJ, Mann-Salinas EA.

J Nurses Prof Dev. 2017 Sep/Oct;33(5):220-227. doi: 10.1097/NND.0000000000000384.


Inertial Wave Turbulence Driven by Elliptical Instability.

Le Reun T, Favier B, Barker AJ, Le Bars M.

Phys Rev Lett. 2017 Jul 21;119(3):034502. doi: 10.1103/PhysRevLett.119.034502. Epub 2017 Jul 21.


Evolution of Precision Medicine and Surgical Strategies for Bicuspid Aortic Valve-Associated Aortopathy.

Fatehi Hassanabad A, Barker AJ, Guzzardi D, Markl M, Malaisrie C, McCarthy PM, Fedak PWM.

Front Physiol. 2017 Jul 10;8:475. doi: 10.3389/fphys.2017.00475. eCollection 2017.


Genetic targeting and anatomical registration of neuronal populations in the zebrafish brain with a new set of BAC transgenic tools.

Förster D, Arnold-Ammer I, Laurell E, Barker AJ, Fernandes AM, Finger-Baier K, Filosa A, Helmbrecht TO, Kölsch Y, Kühn E, Robles E, Slanchev K, Thiele TR, Baier H, Kubo F.

Sci Rep. 2017 Jul 12;7(1):5230. doi: 10.1038/s41598-017-04657-x.


Distribution of blood flow velocity in the normal aorta: Effect of age and gender.

Garcia J, van der Palen RLF, Bollache E, Jarvis K, Rose MJ, Barker AJ, Collins JD, Carr JC, Robinson J, Rigsby CK, Markl M.

J Magn Reson Imaging. 2018 Feb;47(2):487-498. doi: 10.1002/jmri.25773. Epub 2017 May 26.


Echo Particle Image Velocimetry for Estimation of Carotid Artery Wall Shear Stress: Repeatability, Reproducibility and Comparison with Phase-Contrast Magnetic Resonance Imaging.

Gurung A, Gates PE, Mazzaro L, Fulford J, Zhang F, Barker AJ, Hertzberg J, Aizawa K, Strain WD, Elyas S, Shore AC, Shandas R.

Ultrasound Med Biol. 2017 Aug;43(8):1618-1627. doi: 10.1016/j.ultrasmedbio.2017.03.020. Epub 2017 May 10.


Thermoelectric Properties of Highly Conductive Poly(3,4-ethylenedioxythiophene) Polystyrene Sulfonate Printed Thin Films.

Beretta D, Barker AJ, Maqueira-Albo I, Calloni A, Bussetti G, Dell'Erba G, Luzio A, Duò L, Petrozza A, Lanzani G, Caironi M.

ACS Appl Mater Interfaces. 2017 May 31;9(21):18151-18160. doi: 10.1021/acsami.7b04533. Epub 2017 May 16.


Valve mediated hemodynamics and their association with distal ascending aortic diameter in bicuspid aortic valve subjects.

Raghav V, Barker AJ, Mangiameli D, Mirabella L, Markl M, Yoganathan AP.

J Magn Reson Imaging. 2018 Jan;47(1):246-254. doi: 10.1002/jmri.25719. Epub 2017 Apr 8.


Longitudinal Evaluation of Aortic Hemodynamics in Marfan Syndrome: New Insights from a 4D Flow Cardiovascular Magnetic Resonance Multi-Year Follow-Up Study.

Geiger J, Hirtler D, Gottfried K, Rahman O, Bollache E, Barker AJ, Markl M, Stiller B.

J Cardiovasc Magn Reson. 2017 Mar 22;19(1):33. doi: 10.1186/s12968-017-0347-5.


Altered aortic 3D hemodynamics and geometry in pediatric Marfan syndrome patients.

van der Palen RL, Barker AJ, Bollache E, Garcia J, Rose MJ, van Ooij P, Young LT, Roest AA, Markl M, Robinson JD, Rigsby CK.

J Cardiovasc Magn Reson. 2017 Mar 17;19(1):30. doi: 10.1186/s12968-017-0345-7.


Comprehensive 4-stage categorization of bicuspid aortic valve leaflet morphology by cardiac MRI in 386 patients.

Murphy IG, Collins J, Powell A, Markl M, McCarthy P, Malaisrie SC, Carr JC, Barker AJ.

Int J Cardiovasc Imaging. 2017 Aug;33(8):1213-1221. doi: 10.1007/s10554-017-1107-1. Epub 2017 Mar 15.


Aortic shear stress in patients with bicuspid aortic valve with stenosis and insufficiency.

Shan Y, Li J, Wang Y, Wu B, Barker AJ, Markl M, Wang C, Wang X, Shu X.

J Thorac Cardiovasc Surg. 2017 Jun;153(6):1263-1272.e1. doi: 10.1016/j.jtcvs.2016.12.059. Epub 2017 Feb 10.


k-t accelerated aortic 4D flow MRI in under two minutes: Feasibility and impact of resolution, k-space sampling patterns, and respiratory navigator gating on hemodynamic measurements.

Bollache E, Barker AJ, Dolan RS, Carr JC, van Ooij P, Ahmadian R, Powell A, Collins JD, Geiger J, Markl M.

Magn Reson Med. 2018 Jan;79(1):195-207. doi: 10.1002/mrm.26661. Epub 2017 Mar 7.

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