Robert Ryu, MD

Publications

• Sutter CM, Ryu RK. Percutaneous Management of Malignant Biliary Obstruction. Tech Vasc Interv Radiol. 2015 Dec;18(4):218-26. PubMed PMID: 26615162
• Desai KR, Lewandowski RJ, Salem R, Mouli SK, Karp JK, Laws JL, Ryu RK. Retrieval of Inferior Vena Cava Filters With Prolonged Dwell Time: A Single-Center Experience in 648 Retrieval Procedures. JAMA Intern Med. 2015 Sep;175(9):1572-4. PubMed PMID: 26098535
• Salem R, Vouche M, Baker T, Herrero JI, Caicedo JC, Fryer J, Hickey R, Habib A, Abecassis M, Koller F, Vogelzang R, Desai K, Thornburg B, Hohlastos E, Resnick S, Lewandowski RJ, Sato K, Ryu RK, Ganger D, Kulik L. Pretransplant Portal Vein Recanalization-Transjugular Intrahepatic Portosystemic Shunt in Patients With Complete Obliterative Portal Vein Thrombosis. Transplantation. 2015 Nov;99(11):2347-55. PubMed PMID: 25905983
• Ryu RK, Desai K, Karp J, Gupta R, Evans AE, Rajeswaran S, Salem R, Lewandowski RJ. A Comparison of Retrievability: Celect versus Option Filter. J Vasc Interv Radiol. 2015 Jun;26(6):865-9. PubMed PMID: 25791334
• Clancy JF, Carrillo RG, Sotak R, Ram R, Ryu RK, Kennergren C. Percutaneous occlusion balloon as a bridge to surgery in a swine model of superior vena cava perforation. Heart Rhythm. 2016 Nov;13(11):2215-2220. PubMed PMID: 27343856
• Desai KR, Errea M, Ryu RK, Lewandowski RJ. Extraordinary Cases in Inferior Vena Cava Filter Retrieval. Semin Intervent Radiol. 2016 Jun;33(2):149-56. PubMed PMID: 27247485
• Laws JL, Lewandowski RJ, Ryu RK, Desai KR. Retrieval of Inferior Vena Cava Filters: Technical Considerations. Semin Intervent Radiol. 2016 Jun;33(2):144-8. PubMed PMID: 27247484
• Karp JK, Desai KR, Salem R, Ryu RK, Lewandowski RJ. A Dedicated Inferior Vena Cava Filter Service Line: How to Optimize Your Practice. Semin Intervent Radiol. 2016 Jun;33(2):105-8. PubMed PMID: 27247479
• Doe C, Ryu RK. Anatomic and Technical Considerations: Inferior Vena Cava Filter Placement. Semin Intervent Radiol. 2016 Jun;33(2):88-92. PubMed PMID: 27247476
• Ghatan CE, Ryu RK. Permanent versus Retrievable Inferior Vena Cava Filters: Rethinking the "One-Filter-for-All" Approach to Mechanical Thromboembolic Prophylaxis. Semin Intervent Radiol. 2016 Jun;33(2):75-8. PubMed PMID: 27247474
• Pandhi MB, Desai KR, Ryu RK, Lewandowski RJ. The Role of Inferior Vena Cava Filters in Cancer Patients. Semin Intervent Radiol. 2016 Jun;33(2):71-4. PubMed PMID: 27247473
• Trivedi PS, Rochon PJ, Durham JD, Ryu RK. National Trends and Outcomes of Transjugular Intrahepatic Portosystemic Shunt Creation Using the Nationwide Inpatient Sample. J Vasc Interv Radiol. 2016 Jun;27(6):838-45. PubMed PMID: 26965361
• Gipson MG, Smith MT, Durham JD, Brown A, Johnson T, Ray CE Jr, Gupta RK, Kondo KL, Rochon PJ, Ryu RK. Intravascular US-Guided Portal Vein Access: Improved Procedural Metrics during TIPS Creation. J Vasc Interv Radiol. 2016 Aug;27(8):1140-7. PubMed PMID: 26852944
• Wadhwa V, Brandis A, Madassery K, Horner PE, Dhand S, Bream P, Shiloh A, Lessne ML, Ryu RK. #TwittIR: Understanding and Establishing a Twitter Ecosystem for Interventional Radiologists and Their Practices. J Am Coll Radiol. 2018 Jan;15(1 Pt B):218-223. PubMed PMID: 29122504
• Wadhwa V, Gutta NB, Trivedi PS, Chatterjee K, Ahmed O, Ryu RK, Kalva SP. In-Hospital Mortality Benefit of Inferior Vena Cava Filters in Patients With Pulmonary Embolism and Congestive Heart Failure. AJR Am J Roentgenol. 2018 Sep;211(3):672-676. PubMed PMID: 30016144
• Holly BP, Gaba RC, Lessne ML, Lewandowski RJ, Ryu RK, Desai KR, Sing RF. Vena Cava Filter Retrieval with Aorto-Iliac Arterial Strut Penetration. Cardiovasc Intervent Radiol. 2018 Aug;41(8):1184-1188. PubMed PMID: 29725809
• Trivedi PS, Lind KE, Ray CE, Rochon PJ, Ryu RK. Race and Sex Disparities in Outcomes of Dialysis Access Maintenance Interventions. J Vasc Interv Radiol. 2018 Apr;29(4):476-481.e1. PubMed PMID: 29373244
• Wadhwa V, Brandis A, Madassery K, Horner PE, Dhand S, Bream P, Shiloh A, Lessne ML, Ryu RK. #TwittIR: Understanding and Establishing a Twitter Ecosystem for Interventional Radiologists and Their Practices. J Am Coll Radiol. 2018 Jan;15(1 Pt B):218-223. PubMed PMID: 29122504
• Wadhwa V, Trivedi PS, Ali S, Ryu RK, Pezeshkmehr A. IVC filter placements in children: nationwide comparison of practice patterns at adult and children's hospitals using the Kids' Inpatient Database. Pediatr Radiol. 2018 Feb;48(2):253-257. PubMed PMID: 29119240
• Rosenkrantz AB, Hawkins CM, Ryu RK, Duszak R Jr. Clinical Practice Characteristics of Radiologists Based on American Board of Radiology Interventional Radiology Certification Status. AJR Am J Roentgenol. 2020 Jan;214(1):149-155. PubMed PMID: 31670588
• Trivedi PS, Brown MA, Rochon PJ, Ryu RK, Johnson DT. Gender Disparity in Inpatient Mortality After Transjugular Intrahepatic Portosystemic Shunt Creation in Patients Admitted With Hepatorenal Syndrome: A Nationwide Study. J Am Coll Radiol. 2019 Sep 18. [Epub ahead of print] PubMed PMID: 31541656
• Hill GQ, Ryu RK. A Primer to Understanding the Elements of Medical Malpractice. Semin Intervent Radiol. 2019 Jun;36(2):117-119. PubMed PMID: 31123383
• Ryu RK. The Debt We Owe. Semin Intervent Radiol. 2019 Jun;36(2):63-64. PubMed PMID: 31123373
• Hammad H, Brauer BC, Smolkin M, Ryu R, Obuch J, Shah RJ. Treating Biliary-Enteric Anastomotic Strictures with Enteroscopy-ERCP Requires Fewer Procedures than Percutaneous Transhepatic Biliary Drains. Dig Dis Sci. 2019 Sep;64(9):2638-2644. PubMed PMID: 31129875
• Wadhwa V, Trivedi PS, Ali S, Ryu RK, Pezeshkmehr A. IVC filter placements in children: nationwide comparison of practice patterns at adult and children's hospitals using the Kids' Inpatient Database. Pediatr Radiol. 2017 Nov 8. [Epub ahead of print] PubMed PMID: 29119240
• Desai KR, Laws JL, Salem R, Mouli SK, Errea MF, Karp JK, Yang Y, Lewandowski RJ, Ryu RK. Response by Desai et al to Letter Regarding Article, "Defining Prolonged Dwell Time: When Are Advanced Inferior Vena Cava Filter Retrieval Techniques Necessary? An Analysis in 762 Procedures". Circ Cardiovasc Interv. 2017 Sep;10(9). PubMed PMID: 28916609
• Magnowski A, Brown M, Schramm K, Lindquist J, Rochon PJ, Johnson DT, Kondo KL, Desai K, Lewandowski RJ, Ryu RK. The law of unintended consequences: current design challenges in inferior vena cava filters. Expert Rev Med Devices. 2017 Oct;14(10):805-810. PubMed PMID: 28885078
• Wadhwa V, Trivedi PS, Ryu RK, Lessne ML. Increasing Anticoagulation Use Among Inpatients Receiving Inferior Vena Cava Filters. Am J Med. 2017 Aug;130(8):e373-e374. PubMed PMID: 28734386
• Desai KR, Pandhi MB, Seedial SM, Errea MF, Salem R, Ryu RK, Lewandowski RJ. Retrievable IVC Filters: Comprehensive Review of Device-related Complications and Advanced Retrieval Techniques. Radiographics. 2017 Jul-Aug;37(4):1236-1245. PubMed PMID: 28696849
• Wadhwa V, Trivedi PS, Chatterjee K, Tamrazi A, Hong K, Lessne ML, Ryu RK. Decreasing Utilization of Inferior Vena Cava Filters in Post-FDA Warning Era: Insights From 2005 to 2014 Nationwide Inpatient Sample. J Am Coll Radiol. 2017 Sep;14(9):1144-1150. PubMed PMID: 28623048
• Desai KR, Laws JL, Salem R, Mouli SK, Errea MF, Karp JK, Yang Y, Ryu RK, Lewandowski RJ. Defining Prolonged Dwell Time: When Are Advanced Inferior Vena Cava Filter Retrieval Techniques Necessary? An Analysis in 762 Procedures. Circ Cardiovasc Interv. 2017 Jun;10(6). PubMed PMID: 28606998
• Yoon DY, Vavra AK, Eifler AC, Teter K, Eskandari MK, Ryu RK, Rodriguez HE. Why Temporary Filters Are Not Removed: Clinical Predictors in 1,000 Consecutive Cases. Ann Vasc Surg. 2017 Jul;42:64-70. PubMed PMID: 28288891
• Huang C, He X, Xie Y, Chen H, Ye Y, Sun Y, Dharmakumar R, Ryu RK, Li D, Xie G, Fan Z. Thrombus Signal on T1-Weighted Black-Blood MR Predicts Outcomes of Catheter-Directed Thrombolysis in Acute Deep Vein Thrombosis. Thromb Haemost. 2023 Apr;123(4):453-463. PubMed PMID: 36754064
• Rao SS, Jensen AM, Kriss MS, Morgan RL, Ho PM, Ryu RK, Trivedi PS. Racial Differences in the Use of Endoscopy and Transjugular Intrahepatic Portosystemic Shunt Creation for Treatment of Acute Variceal Bleeding in the United States. J Vasc Interv Radiol. 2022 Apr;33(4):465-468.e1. PubMed PMID: 34929343
• Kirkpatrick DL, Lindquist J, Jensen AM, Reghunathan A, Brown MA, Schramm KM, Ryu RK, Trivedi PS. Comparative efficacy and safety of the Captus device for inferior vena cava filter retrieval. Clin Imaging. 2021 Sep;77:202-206. PubMed PMID: 33989965
• Trivedi PS, Jensen AM, Brown MA, Morgan RL, Lindrooth RC, Ryu RK, Ho PM, Kriss MS. High Prevalence of Transjugular Intrahepatic Portosystemic Shunt Creation Without Prior Endoscopy During Acute Variceal Bleeding Hospitalization in the United States. Hepatol Commun. 2021 Oct;5(10):1784-1790. PubMed PMID: 34558832
• Trivedi PS, Jensen AM, Kriss MS, Brown MA, Morgan RL, Lindrooth RC, Ho PM, Ryu RK. Ethnoracial Disparity in Hospital Survival following Transjugular Intrahepatic Portosystemic Shunt Creation for Acute Variceal Bleeding in the United States. J Vasc Interv Radiol. 2021 Jul;32(7):941-949.e3. PubMed PMID: 33901695
• Gordon AC, Gates VL, White SB, Harris KR, Procissi D, Zhang Z, Li W, Samaan D, Nicolai JR, Mouli SK, Sato KT, Ryu RK, Omary RA, Salem R, Lewandowski RJ, Larson AC. Correlation and Agreement of Yttrium-90 Positron Emission Tomography/Computed Tomography with Ex Vivo Radioembolization Microsphere Deposition in the Rabbit VX2 Liver Tumor Model. J Vasc Interv Radiol. 2021 Jan;32(1):23-32.e1. PubMed PMID: 33189539
• Desai KR, Xiao N, Salem R, Karp JK, Ryu RK, Lewandowski RJ. Excimer Laser Sheath-Assisted Retrieval of "Closed-Cell" Design Inferior Vena Cava Filters. J Am Heart Assoc. 2020 Sep;9(17):e017240. PubMed PMID: 32815443
• Wadhwa V, Ahmed O, Lessne ML, Ryu RK, Trivedi PS. Continued decrease in utilization of IVC filters: update from 2016 Nationwide Inpatient Sample. Clin Imaging. 2020 Sep;65:94-95. PubMed PMID: 32387802
• Grimsbo MC, Brown MA, Lindquist JD, Schramm KM, Kirkpatrick DL, Ryu RK, Trivedi PS. Intracardiac Echocardiography-Guided TIPS: A Primer for New Operators. Semin Intervent Radiol. 2020 Oct;37(4):405-413. PubMed PMID: 33041487
• Grewal S, Lewandowski RJ, Ryu RKW, Desai KR. Inferior Vena Cava Filter Retrieval: Patient Selection, Procedural Planning, and Postprocedural Complications. AJR Am J Roentgenol. 2020 Oct;215(4):790-794. PubMed PMID: 32755356
• Trivedi PS, Jensen AM, Brown MA, Hong K, Borgstede JP, Lindrooth RC, Duszak RL Jr, Rochon PJ, Ryu RK. Cost Analysis of Dialysis Access Maintenance Interventions across Physician Specialties in U.S. Medicare Beneficiaries. Radiology. 2020 Nov;297(2):474-481. PubMed PMID: 32897162
• Berland LL, Heitkamp DE, Ryu RK. Predictors of Failing the American Board of Radiology Core Examination. AJR Am J Roentgenol. 2020 Apr;214(4):W72. PubMed PMID: 32196370
• Schramm KM, DeWitt PE, Dybul S, Rochon PJ, Patel P, Hieb RA, Rogers RK, Ryu RK, Wolhauer M, Hong K, Trivedi PS. Recent Trends in Clinical Setting and Provider Specialty for Endovascular Peripheral Artery Disease Interventions for the Medicare Population. J Vasc Interv Radiol. 2020 Apr;31(4):614-621.e2. PubMed PMID: 32127322

Professional Memberships

• Society Of Interventional Radiology (SIR), Member
• Radiological Society of North America (RSNA), Member
• American Medical Association (AMA), Member
• Association of University Radiologists (AUR), Member

Practice Locations

• University of Colorado Hospital

Specialty Information

• Vascular and Interventional Radiology, Board Certification (1996, 2009)

• Radiology - Interventional
• Radiology
• Circulatory System and Blood Vessel Health - Angioplasty
• Circulatory System and Blood Vessel Health
• Circulatory System and Blood Vessel Health - Peripheral Arterial Disease (PAD)
• Circulatory System and Blood Vessel Health - Dialysis access
• Heart and Circulation - Circulatory Disorders
• Heart and Circulation
• Heart and Circulation - Peripheral Artery Disease