Research Summary

R. Peter Lokken earned his Master’s degree in Public Health at the Harvard School of Public Health (2006) and his MD (2007) from Harvard Medical School in Boston, MA. He completed a one-year Internal Medicine internship at UC San Diego (2008). Lokken’s four-year diagnostic radiology residency was at the Brigham and Women’s Hospital in Boston, MA (2008-2012). Lokken completed a one-year Interventional Radiology fellowship at UCSF in 2013. In 2013, he joined the University of Illinois Hospital Health & Science Center in Chicago as a radiologist specializing in vascular interventional radiology. In June 2018, he rejoined UCSF as an assistant professor of clinical radiology in the department’s Interventional Section.

Lokken is an associate editor for the Journal of Vascular and Interventional Radiology, the scientific journal of the Society for Interventional Radiology. His research focus is the investigation of clinical, genetic and immunological factors associated with outcomes of locoregional therapy for hepatocellular carcinoma and other malignancies.

Education

Yale University, BA, 01/2000, History  Harvard Medical School, MD, 06/2007 Harvard School of Public Health, MPH, 05/2006, Quantitative Methods  University of California, San Diego, Internship, 06/2008, Internal Medicine  Brigham and Women's Hospital, Residency, 06/2012, Diagnostic Radiology  University of California, San Francisco, Fellowship, 06/2013, Vascular and Interventional Radiology 

Selected Publications

  1. Schachtschneider KM, Redlon LN, Lokken RP, Huang YH, Guzman G, Schook LB, Gaba RC. Epigenetic regulation of individual components of combined hepatocellular-cholangiocarcinoma. PLoS One. 2025; 20(5):e0324145.  View on PubMed
  2. Hieromnimon M, Regan DP, Lokken RP, Schook LB, Gaba RC, Schachtschneider KM. Single and multi-omic characterization of a porcine model of ethanol-induced hepatic fibrosis. Epigenetics. 2025 Dec; 20(1):2471127.  View on PubMed
  3. Kim JS, Lokken RP, Lam A, Kayraklioglu N, Kolli KP. Gastroduodenal Artery Embolization with Shear-Thinning Conformable Embolic Resulting in Pancreatic and Duodenal Necrosis. J Vasc Interv Radiol. 2025 Jun; 36(6):1087-1089.e1.  View on PubMed
  4. Farrell TA, Lokken RP, Sze DY. A Formula for Writing a JVIR Article. J Vasc Interv Radiol. 2025 Mar; 36(3):409-413.  View on PubMed
  5. Ronald J, Bartlett D, Border L, Fickert J, Gaba RC, Kim J, Kord A, Lokken RP, Patel M, Pollard B, Ramsey MT, Yu H. Hepatobiliary Infection after Transjugular Intrahepatic Portosystemic Shunt Creation in Patients with Prior Biliary Intervention: A Multi-Institution Retrospective Study. J Vasc Interv Radiol. 2024 Sep; 35(9):1323-1331.e3.  View on PubMed
  6. Gaba RC, Ahmed O, Lokken RP, Sze DY. The JVIR and Transfusion Medicine. J Vasc Interv Radiol. 2024 Aug; 35(8):1095-1096.  View on PubMed
  7. Vijayakumar V, Gaba RC, Huang YH, Davis I, Roman R, Guzman G, Lokken RP, Schachtschneider KM. Hepatocellular Carcinoma Epigenetic Patterns Correspond to Differences in Ethnoracial Status and Treatment Response in a Single-Center Retrospective Study. J Vasc Interv Radiol. 2024 May; 35(5):731-743.e36.  View on PubMed
  8. Leng L, Li AT, Lokken RP, Kohn M, Wu X, Sohn JH. Effect of Rapid Rollover on Pneumothorax Rate after Percutaneous CT-Guided Lung Biopsy: A Multicenter, Randomized Controlled Trial. J Vasc Interv Radiol. 2024 Apr; 35(4):618-620.  View on PubMed
  9. Khela M, Kasir R, Lokken RP, Clark AJ, Theologis AA. Bilateral dual iliac screw pelvic fixation for adult spinal deformity: a case report of a superior gluteal artery pseudoaneurysm secondary to aberrant iliac screw trajectory. Spine Deform. 2024 Mar; 12(2):501-505.  View on PubMed
  10. Wu X, Kwong A, Heller M, Lokken RP, Fidelman N, Mehta N. Cost-effectiveness analysis of interventional liver-directed therapies for downstaging of HCC before liver transplant. Liver Transpl. 2024 02 01; 30(2):151-159.  View on PubMed
  11. Blackburn AF, Landinez GP, Kerlan RK, Lokken RP. Malposition of a Femoral Tunneled Dialysis Catheter through a Patent Foramen Ovale. Semin Intervent Radiol. 2023 Jun; 40(3):304-307.  View on PubMed
  12. Wu X, Lokken RP, Mehta N. Optimal treatment for small HCC (<3 cm): Resection, liver transplantation, or locoregional therapy? JHEP Rep. 2023 Aug; 5(8):100781.  View on PubMed
  13. Wu X, Heller M, Lokken RP, Fidelman N, Lam A. Socioeconomic and Survival Analysis of Radioembolization in Patients with Intrahepatic Cholangiocarcinoma: A Propensity Score-Adjusted Study. J Vasc Interv Radiol. 2023 05; 34(5):815-823.e1.  View on PubMed
  14. Qureshy Z, Lokken RP, Kakar S, Grab J, Mehta N, Sarkar M. Influence of progestin-only hormonal use on hepatocellular adenomas: A retrospective cohort study. Contraception. 2023 03; 119:109915.  View on PubMed
  15. Shah RJ, Alqadi MM, Duvvuri M, Kim YJ, Tyagi R, Lokken RP, Gaba RC. Clinical Outcomes and Patency after Transjugular Intrahepatic Portosystemic Shunt Reduction for Overshunting Adverse Events. J Vasc Interv Radiol. 2022 12; 33(12):1507-1512.  View on PubMed
  16. Elkhadragy L, Khabbaz RC, Muchiri RN, Totura WM, Samuelson JP, Whiteley HE, van Breemen RB, Lokken RP, Gaba RC. Pharmacokinetics and Early Tumor Response to Conventional Transarterial Chemoembolization with Sorafenib and Doxorubicin in a VX2 Rabbit Tumor Model. J Vasc Interv Radiol. 2022 10; 33(10):1213-1221.e5.  View on PubMed
  17. Kohlbrenner R, Schwertner AB, Vogel AR, Conrad M, Lokken RP. Large thrombosed portomesenteric venous aneurysm treated with pharmacomechanical thrombolysis combined with TIPS placement. CVIR Endovasc. 2022 Feb 08; 5(1):11.  View on PubMed
  18. Lokken RP, Conrad MB. Nonoperative Management of Unstable Patients with Solid Organ Injury: An Incompletely Mapped Frontier. J Vasc Interv Radiol. 2021 08; 32(8):1156-1157.  View on PubMed
  19. Speir EJ, Hills NK, Lokken RP. Accuracy of Disclosed Financial Relationships between Radiologists and Industry at the 2018 RSNA Annual Meeting. Radiology. 2021 08; 300(2):433-435.  View on PubMed
  20. Gaba RC, Khabbaz RC, Muchiri RN, Morrison JD, Elkhadragy L, Totura WM, Samuelson JP, Whiteley HE, Deaton RL, Nguyen PL, Sverdlov M, Johnson JJ, van Breemen RB, Lokken RP. Conventional versus drug-eluting embolic transarterial chemoembolization with doxorubicin: comparative drug delivery, pharmacokinetics, and treatment response in a rabbit VX2 tumor model. Drug Deliv Transl Res. 2022 05; 12(5):1105-1117.  View on PubMed

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