Colorado PROFILES, The Colorado Clinical and Translational Sciences Institute (CCTSI)
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Last Name
Institution

Richard McWilliams Friesen

TitleAssociate Professor
InstitutionUniversity of Colorado Denver - Anschutz Medical Campus
DepartmentSOM-PEDS

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    Publications listed below are automatically derived from MEDLINE/PubMed and other sources, which might result in incorrect or missing publications. Faculty can login to make corrections and additions.
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    1. Vollbrecht TM, Goncalves LF, Bardo DME, Hart C, Boeth H, Barker AJ, Friesen RM, Luetkens JA. Factors influencing image quality in fetal cardiovascular magnetic resonance cine imaging using Doppler ultrasound gating: A multicenter study. J Cardiovasc Magn Reson. 2025 Summer; 27(1):101875. PMID: 40057042.
      View in: PubMed
    2. Tompkins RM, Fujiwara T, Schrauben EM, Browne LP, van Schuppen J, Clur SA, Friesen RM, Englund EK, Barker AJ, van Ooij P. Third trimester fetal 4D flow MRI with motion correction. Magn Reson Med. 2025 May; 93(5):1969-1983. PMID: 39789817.
      View in: PubMed
    3. Englund EK, Fujiwara T, Smith SA, Meyers ML, Friesen RM, Browne LP, Barker AJ. Reliability of 4D Flow MRI for Investigation of Fetal Cardiovascular Hemodynamics in the Third Trimester. Radiol Cardiothorac Imaging. 2024 Dec; 6(6):e240119. PMID: 39636219.
      View in: PubMed
    4. Barker AJ, Browne LP, Friesen RM. Easing the strain of fetal cardiovascular magnetic resonance: Editorial for "Fetal cardiovascular magnetic resonance feature tracking myocardial strain analysis in congenital heart disease". J Cardiovasc Magn Reson. 2024 Winter; 26(2):101115. PMID: 39490665.
      View in: PubMed
    5. Minocha PK, Englund EK, Friesen RM, Fujiwara T, Smith SA, Meyers ML, Browne LP, Barker AJ. Reference Values for Fetal Cardiac Dimensions, Volumes, Ventricular Function and Left Ventricular Longitudinal Strain Using Doppler Ultrasound Gated Cardiac Magnetic Resonance Imaging in Healthy Third Trimester Fetuses. J Magn Reson Imaging. 2024 07; 60(1):365-374. PMID: 37855630.
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    6. Gonzalez de Alba C, Moghari MH, Browne LP, Friesen RM, Fonseca B, Malone LJ. Feasibility of gray-blood late gadolinium enhancement evaluation in young patients with congenital and acquired heart disease. Front Cardiovasc Med. 2023; 10:1269412. PMID: 37915741.
      View in: PubMed
    7. Sch?fer M, Mitchell MB, Frank BS, Barker AJ, Stone ML, Jaggers J, von Alvensleben JC, Hunter KS, Friesen RM, Ivy DD, Jacobsen R, Di Maria MV. Myocardial strain-curve deformation patterns after Fontan operation. Sci Rep. 2023 07 24; 13(1):11912. PMID: 37488167.
      View in: PubMed
    8. Browne LP, Fujiwara T, Leahy RA, Friesen RM, Barker AJ. 4D flow MRI quantification and surveillance of veno-venous collateralization. Eur Heart J Cardiovasc Imaging. 2022 09 10; 23(10):e466. PMID: 35762621.
      View in: PubMed
    9. Barker AJ, Friesen RM, Browne LP. Editorial for "Neonatal 4D Flow Magnetic Resonance Imaging Without General Anesthesia". J Magn Reson Imaging. 2023 01; 57(1):83-84. PMID: 35716102.
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    10. Park DM, Landeck BF, Burkett DA, Friesen RM, Villavicencio KL, Patel SS, Kirby KS, Hoefener BE, Gau CM, Provenzano LM, Younoszai AK. Investigating a Rapid and Safe Outpatient Pediatric Screening Protocol. J Am Soc Echocardiogr. 2022 10; 35(10):1101-1102. PMID: 35690299.
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    11. Sch?fer M, Friesen RM, von Alvensleben JC. Importance of neonatal strain imaging: what are we measuring? Int J Cardiovasc Imaging. 2021 Jul; 37(7):2125-2126. PMID: 33999351.
      View in: PubMed
    12. Persson J, Shorofsky M, Leahy R, Friesen R, Khanna A, Cole L, Kim JS. ST-Elevation Myocardial Infarction due to Acute Thrombosis in an Adolescent With COVID-19. Pediatrics. 2021 08; 148(2). PMID: 34035074.
      View in: PubMed
    13. Charlton GA, Ladd DR, Friesen RM, Friesen RH. Labetalol Infusion Attenuates Paradoxical Hypertension and Decreases Plasma Renin Activity After Repair of Coarctation of the Aorta in Children. J Cardiothorac Vasc Anesth. 2020 Dec; 34(12):3348-3351. PMID: 32593586.
      View in: PubMed
    14. Friesen RM, Sch?fer M, Ivy DD, Abman SH, Stenmark K, Browne LP, Barker AJ, Hunter KS, Truong U. Proximal pulmonary vascular stiffness as a prognostic factor in children with pulmonary arterial hypertension. Eur Heart J Cardiovasc Imaging. 2019 02 01; 20(2):209-217. PMID: 29788051.
      View in: PubMed
    15. Sch?fer M, Collins KK, Browne LP, Ivy DD, Abman S, Friesen R, Frank B, Fonseca B, DiMaria M, Hunter KS, Truong U, von Alvensleben JC. Effect of electrical dyssynchrony on left and right ventricular mechanics in children with pulmonary arterial hypertension. J Heart Lung Transplant. 2018 07; 37(7):870-878. PMID: 29496397.
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    16. Friesen RM, Sch?fer M, Jone PN, Appiawiah N, Vargas D, Fonseca B, DiMaria MV, Truong U, Malone L, Browne LP. Myocardial Perfusion Reserve Index in Children With Kawasaki Disease. J Magn Reson Imaging. 2018 07; 48(1):132-139. PMID: 29232024.
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    17. Friesen RM, Sch?fer M, Burkett DA, Cassidy CJ, Ivy DD, Jone PN. Right Ventricular Tissue Doppler Myocardial Performance Index in Children with Pulmonary Hypertension: Relation to Invasive Hemodynamics. Pediatr Cardiol. 2018 Jan; 39(1):98-104. PMID: 28980052.
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    18. Muthusamy K, Recktenwall SM, Friesen RM, Zuk J, Gralla J, Miller NH, Galinkin JL, Chang FM. Effectiveness of an anesthetic continuous-infusion device in children with cerebral palsy undergoing orthopaedic surgery. J Pediatr Orthop. 2010 Dec; 30(8):840-5. PMID: 21102210.
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    19. Muthusamy K, Chu HY, Friesen RM, Chou PC, Eilert RE, Chang FM. Femoral head resection as a salvage procedure for the severely dysplastic hip in nonambulatory children with cerebral palsy. J Pediatr Orthop. 2008 Dec; 28(8):884-9. PMID: 19034183.
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    20. Muthusamy K, Seidl AJ, Friesen RM, Carollo JJ, Pan Z, Chang FM. Rectus femoris transfer in children with cerebral palsy: evaluation of transfer site and preoperative indicators. J Pediatr Orthop. 2008 Sep; 28(6):674-8. PMID: 18724207.
      View in: PubMed
    21. Friesen RH, Perryman KM, Weigers KR, Mitchell MB, Friesen RM. A trial of fresh autologous whole blood to treat dilutional coagulopathy following cardiopulmonary bypass in infants. Paediatr Anaesth. 2006 Apr; 16(4):429-35. PMID: 16618298.
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    22. Friesen RH, Wurl JL, Friesen RM. Duration of preoperative fast correlates with arterial blood pressure response to halothane in infants. Anesth Analg. 2002 Dec; 95(6):1572-6, table of contents. PMID: 12456418.
      View in: PubMed
    23. Dyck L, Friesen RM. Do different heparin brands influence activated clotting times? J Extra Corpor Technol. 1998 Jun; 30(2):73-6. PMID: 10182116.
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    24. Thomson IR, Putnins CL, Friesen RM. Hyperdynamic cardiovascular responses to anesthetic induction with high-dose fentanyl. Anesth Analg. 1986 Jan; 65(1):91-5. PMID: 3079634.
      View in: PubMed
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