Ryan O’Hara

526 total citations
16 papers, 328 citations indexed

About

Ryan O’Hara is a scholar working on Surgery, Pulmonary and Respiratory Medicine and Hepatology. According to data from OpenAlex, Ryan O’Hara has authored 16 papers receiving a total of 328 indexed citations (citations by other indexed papers that have themselves been cited), including 7 papers in Surgery, 7 papers in Pulmonary and Respiratory Medicine and 6 papers in Hepatology. Recurrent topics in Ryan O’Hara's work include Hepatocellular Carcinoma Treatment and Prognosis (5 papers), Cholangiocarcinoma and Gallbladder Cancer Studies (4 papers) and Renal and Vascular Pathologies (3 papers). Ryan O’Hara is often cited by papers focused on Hepatocellular Carcinoma Treatment and Prognosis (5 papers), Cholangiocarcinoma and Gallbladder Cancer Studies (4 papers) and Renal and Vascular Pathologies (3 papers). Ryan O’Hara collaborates with scholars based in United States, Ireland and United Kingdom. Ryan O’Hara's co-authors include Robert C.G. Martin, Dana Tomalty, Cliff Tatum, Ken Robbins, Joshua P. Jones, Russell J. Stewart, Monika Sima, Radek Pádr, Miloslav Roček and Petar Bošnjaković and has published in prestigious journals such as Radiology, BMC Cancer and Advanced Healthcare Materials.

In The Last Decade

Ryan O’Hara

16 papers receiving 325 citations

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name	h						Papers	Cites
Ryan O’Hara United States	8	178	150	127	110	37	16	328
Christof-Matthias Sommer Germany	13	99 0.6×	87 0.6×	233 1.8×	104 0.9×	36 1.0×	21	382
Fabio Melchiorre Italy	11	204 1.1×	88 0.6×	273 2.1×	199 1.8×	41 1.1×	17	516
Jin-Hua Huang China	11	105 0.6×	52 0.3×	84 0.7×	113 1.0×	7 0.2×	18	335
Jürgen Zanow Germany	10	29 0.2×	66 0.4×	150 1.2×	155 1.4×	10 0.3×	22	362
Simone Gusmini Italy	10	100 0.6×	127 0.8×	216 1.7×	181 1.6×	21 0.6×	25	399
Eric A. Wang United States	12	172 1.0×	147 1.0×	91 0.7×	129 1.2×	12 0.3×	14	331
Mu-Tai Liu Taiwan	13	75 0.4×	76 0.5×	97 0.8×	183 1.7×	27 0.7×	24	403
Masato Araki Japan	14	48 0.3×	148 1.0×	349 2.7×	252 2.3×	2 0.1×	48	566
Noriyuki Miyamoto Japan	11	162 0.9×	92 0.6×	255 2.0×	130 1.2×	12 0.3×	23	392
Jung Ho Im South Korea	9	55 0.3×	61 0.4×	99 0.8×	115 1.0×	18 0.5×	22	272

Countries citing papers authored by Ryan O’Hara

Since Specialization

Citations

This map shows the geographic impact of Ryan O’Hara's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Ryan O’Hara with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Ryan O’Hara more than expected).

Fields of papers citing papers by Ryan O’Hara

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Ryan O’Hara. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Ryan O’Hara. The network helps show where Ryan O’Hara may publish in the future.

Co-authorship network of co-authors of Ryan O’Hara

This figure shows the co-authorship network connecting the top 25 collaborators of Ryan O’Hara. A scholar is included among the top collaborators of Ryan O’Hara based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Ryan O’Hara. Ryan O’Hara is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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16 of 16 papers shown

Holden, Andrew, et al.. (2023). A First-in-Human Trial of a New Aqueous Ionic Liquid Embolic Material in Distal Embolization Applications. Journal of Vascular and Interventional Radiology. 35(2). 232–240.e1. 2 indexed citations

Zhang, Kevin, Ripal Gandhi, Zachary Collins, et al.. (2022). Long-term outcomes following 90Y Radioembolization of neuroendocrine liver metastases: evaluation of the radiation-emitting SIR-spheres in non-resectable liver tumor (RESiN) registry. BMC Cancer. 22(1). 224–224. 19 indexed citations

Du, Liping, Ripal Gandhi, Zachary Collins, et al.. (2022). Survival and Toxicities after ⁹⁰Y Transarterial Radioembolization of Metastatic Colorectal Cancer in the RESIN Registry. Radiology. 305(1). 228–236. 18 indexed citations

Brown, Daniel B., Jayson S. Brower, Ryan O’Hara, et al.. (2021). Incidence and risk factors for sustained hepatic function toxicity 6 months after radioembolization: analysis of the radiation-emitting sir-spheres in non-resectable liver tumor (RESIN) registry. Journal of Gastrointestinal Oncology. 12(2). 639–657. 7 indexed citations

Jones, Jason C., Ryan O’Hara, Magnus L. Johnson, & Aaron L. Olsen. (2020). Abstract No. 376 A chronic comparison of clinically used embolic agents with GPX in domestic swine. Journal of Vascular and Interventional Radiology. 31(3). S170–S170. 2 indexed citations

Campsen, Jeffrey, Ryan O’Hara, Robin D. Kim, et al.. (2019). Renal hilar block predicts long-term success of renal auto-transplantation for loin pain hematuria syndrome. International Urology and Nephrology. 51(6). 927–930. 3 indexed citations

Haroun, Reham R., Keith Quencer, Joseph P. Erinjeri, Ryan O’Hara, & G Fine. (2019). Percutaneous Cryoablation of an Extra-Abdominal Desmoid Tumor Abutting the Skin Surface and Peritoneum. Journal of Vascular and Interventional Radiology. 30(3). 426–427. 3 indexed citations

Quencer, Keith, Anthony Tadros, Ziga Cizman, et al.. (2018). Bleeding after Percutaneous Transhepatic Biliary Drainage: Incidence, Causes and Treatments. Journal of Clinical Medicine. 7(5). 94–94. 26 indexed citations

Chaly, Thomas, Jeffrey Campsen, Ryan O’Hara, et al.. (2017). Mucocele mimicking a gallbladder in a transplanted liver: A case report and review of the literature. World Journal of Transplantation. 7(6). 359–363. 3 indexed citations

10.

Jones, Joshua P., Monika Sima, Ryan O’Hara, & Russell J. Stewart. (2016). Water‐Borne Endovascular Embolics Inspired by the Undersea Adhesive of Marine Sandcastle Worms. Advanced Healthcare Materials. 5(7). 795–801. 55 indexed citations

11.

Hardman, Rulon L., et al.. (2015). Post-Transplant Hepatic Artery Pseudoaneurysm Treated with the Pipeline Flow-Diverting Stent. CardioVascular and Interventional Radiology. 38(4). 1043–1046. 16 indexed citations

12.

Akinwande, Olaguoke, et al.. (2014). Concomitant capecitabine with hepatic delivery of drug eluting beads in metastatic colorectal cancer.. PubMed. 34(12). 7239–45. 17 indexed citations

13.

Martin, Robert C.G., Ken Robbins, Dana Tomalty, et al.. (2009). Transarterial chemoembolisation (TACE) using irinotecan-loaded beads for the treatment of unresectable metastases to the liver in patients with colorectal cancer: an interim report. World Journal of Surgical Oncology. 7(1). 80–80. 80 indexed citations

14.

Martin, Robert C.G., et al.. (2009). Transarterial Chemoembolization of Metastatic Colorectal Carcinoma with Drug-Eluting Beads, Irinotecan (DEBIRI): Multi-Institutional Registry. Journal of Oncology. 2009. 1–6. 65 indexed citations

15.

O’Hara, Ryan, et al.. (2003). The role of transferrin saturation as a screening test for hereditary haemochromatosis in an Irish population seeking medical care. Annals of Clinical Biochemistry International Journal of Laboratory Medicine. 40(2). 169–174. 5 indexed citations

16.

O’Hara, Ryan, et al.. (1985). Intracranial vascular malformation and astrocytoma.. PubMed. 168(6). 388–90. 7 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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