R K Zeman

1.2k total citations
45 papers, 859 citations indexed

About

R K Zeman is a scholar working on Pulmonary and Respiratory Medicine, Radiology, Nuclear Medicine and Imaging and Surgery. According to data from OpenAlex, R K Zeman has authored 45 papers receiving a total of 859 indexed citations (citations by other indexed papers that have themselves been cited), including 27 papers in Pulmonary and Respiratory Medicine, 19 papers in Radiology, Nuclear Medicine and Imaging and 12 papers in Surgery. Recurrent topics in R K Zeman's work include MRI in cancer diagnosis (10 papers), Gallbladder and Bile Duct Disorders (10 papers) and Pancreatic and Hepatic Oncology Research (7 papers). R K Zeman is often cited by papers focused on MRI in cancer diagnosis (10 papers), Gallbladder and Bile Duct Disorders (10 papers) and Pancreatic and Hepatic Oncology Research (7 papers). R K Zeman collaborates with scholars based in United States, Portugal and Canada. R K Zeman's co-authors include Cirrelda Cooper, P M Silverman, W J Davros, Brian S. Garra, P M Silverman, D I Weltman, Arthur T. Rosenfield, Bonnie Brown, Stanley H. Fox and Mario N. Gomes and has published in prestigious journals such as Radiology, The Journal of Urology and American Journal of Roentgenology.

In The Last Decade

R K Zeman

42 papers receiving 828 citations

Peers

R K Zeman

PRM

RNMI

SURGE

ONCOL

Cirrelda Cooper United States

M. Uggowitzer Austria

Yoshihiro Dodo Japan

Raffaella Basilico Italy

John C. Scatarige United States

P M Silverman United States

E. Grabbe Germany

Thomas G. Vrachliotis United States

H S Glazer United States

Salvatore Alessio Angileri Italy

Cirrelda Cooper United States

R K Zeman

356 ×0.8

PRM

407 ×1.2

RNMI

384 ×1.4

SURGE

145 ×0.8

206 ×1.2

ONCOL

Citations per year, relative to R K Zeman R K Zeman (= 1×) peers Cirrelda Cooper

Countries citing papers authored by R K Zeman

Since Specialization

Citations

This map shows the geographic impact of R K Zeman'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 R K Zeman with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites R K Zeman more than expected).

Fields of papers citing papers by R K Zeman

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by R K Zeman. 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 R K Zeman. The network helps show where R K Zeman may publish in the future.

Co-authorship network of co-authors of R K Zeman

This figure shows the co-authorship network connecting the top 25 collaborators of R K Zeman. A scholar is included among the top collaborators of R K Zeman 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 R K Zeman. R K Zeman is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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20 of 20 papers shown

Parkinson, William, et al.. (2018). Single-energy non-contrast hepatic steatosis criteria applied to virtual non-contrast images: is it still highly specific and positively predictive?. Clinical Radiology. 73(6). 594.e7–594.e15. 18 indexed citations

Zeman, R K, R L Baron, R. Brooke Jeffrey, et al.. (1998). Helical body CT: evolution of scanning protocols.. American Journal of Roentgenology. 170(6). 1427–1438. 53 indexed citations

Silverman, P M, et al.. (1998). Imaging of the liver with helical CT: a survey of scanning techniques.. American Journal of Roentgenology. 170(1). 149–152. 19 indexed citations

Silverman, P M, et al.. (1995). Helical CT of the liver: clinical application of an automated computer technique, SmartPrep, for obtaining images with optimal contrast enhancement.. American Journal of Roentgenology. 165(1). 73–78. 63 indexed citations

Zeman, R K, et al.. (1995). Abdominal aortic aneurysms: findings on three-dimensional display of helical CT data.. American Journal of Roentgenology. 164(4). 917–922. 15 indexed citations

Silverman, P M, Cirrelda Cooper, D I Weltman, & R K Zeman. (1995). Helical CT: practical considerations and potential pitfalls.. Radiographics. 15(1). 25–36. 37 indexed citations

Silverman, P M, et al.. (1995). Optimal contrast enhancement of the liver using helical (spiral) CT: value of SmartPrep.. American Journal of Roentgenology. 164(5). 1169–1171. 52 indexed citations

Silverman, P M, Cirrelda Cooper, & R K Zeman. (1995). Imaging of the liver: a survey update of prevailing techniques for conventional CT scanning. Abdominal Imaging. 20(4). 348–352. 4 indexed citations

Zeman, R K, W J Davros, D I Weltman, et al.. (1994). Three-dimensional models of the abdominal vasculature based on helical CT: usefulness in patients with pancreatic neoplasms.. American Journal of Roentgenology. 162(6). 1425–1429. 33 indexed citations

10.

Zeman, R K, Andrew S. Zeiberg, W J Davros, et al.. (1993). Routine helical CT of the abdomen: image quality considerations.. Radiology. 189(2). 395–400. 30 indexed citations

11.

Horii, Steven C., Seong K. Mun, Larry P. Elliott, et al.. (1992). PACS clinical experience at Georgetown University. International Journal of Bio-Medical Computing. 30(3-4). 275–280. 7 indexed citations

12.

Burrell, Morton I., R K Zeman, Joseph F. Simeone, et al.. (1991). The biliary tract: imaging for the 1990s.. American Journal of Roentgenology. 157(2). 223–233. 15 indexed citations

13.

Zeman, R K, et al.. (1991). Gallstone lithotripsy: is there still cause for optimism?. Radiology. 178(1). 33–35. 4 indexed citations

14.

Zeman, R K, et al.. (1991). Gallstone fragmentation during biliary lithotripsy: effect of stone composition and structure.. American Journal of Roentgenology. 156(3). 493–499. 8 indexed citations

15.

Feld, Rick, et al.. (1991). Imaging the gallbladder: a historical perspective.. American Journal of Roentgenology. 156(4). 737–740. 2 indexed citations

16.

Zeman, R K, W J Davros, Brian S. Garra, et al.. (1991). Gallstone lithotripsy: results when number of stones is excluded as a criterion for treatment.. American Journal of Roentgenology. 157(4). 747–752. 4 indexed citations

17.

Zeman, R K, W J Davros, Brian S. Garra, & S C Horii. (1990). Cavitation effects during lithotripsy. Part I. Results of in vitro experiments.. Radiology. 177(1). 157–161. 24 indexed citations

18.

Zeman, R K, J J Cronan, Arthur T. Rosenfield, et al.. (1988). Renal cell carcinoma: dynamic thin-section CT assessment of vascular invasion and tumor vascularity.. Radiology. 167(2). 393–396. 37 indexed citations

19.

Zeman, R K, Leon V. McVay, P M Silverman, et al.. (1988). Pancreas divisum: thin-section CT.. Radiology. 169(2). 395–398. 22 indexed citations

20.

Zeman, R K, J J Cronan, Arthur T. Rosenfield, et al.. (1986). Computed tomography of renal masses: pitfalls and anatomic variants.. Radiographics. 6(3). 351–372. 13 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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