Paul Geis

1.3k total citations · 1 hit paper
11 papers, 994 citations indexed

About

Paul Geis is a scholar working on Radiology, Nuclear Medicine and Imaging, Radiation and Pulmonary and Respiratory Medicine. According to data from OpenAlex, Paul Geis has authored 11 papers receiving a total of 994 indexed citations (citations by other indexed papers that have themselves been cited), including 9 papers in Radiology, Nuclear Medicine and Imaging, 8 papers in Radiation and 5 papers in Pulmonary and Respiratory Medicine. Recurrent topics in Paul Geis's work include Advanced Radiotherapy Techniques (8 papers), Medical Imaging Techniques and Applications (3 papers) and Radiation Therapy and Dosimetry (3 papers). Paul Geis is often cited by papers focused on Advanced Radiotherapy Techniques (8 papers), Medical Imaging Techniques and Applications (3 papers) and Radiation Therapy and Dosimetry (3 papers). Paul Geis collaborates with scholars based in United States. Paul Geis's co-authors include John R. Adler, James R. Doty, Martin J. Murphy, A Boyer, S.L. Hancock, Steven D. Chang, D Followill, Arthur L. Boyer, Walter H. Grant and Lijun Ma and has published in prestigious journals such as International Journal of Radiation Oncology*Biology*Physics, Physics in Medicine and Biology and Medical Physics.

In The Last Decade

Paul Geis

11 papers receiving 956 citations

Hit Papers

align trajectories

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

The Cyberknife: A Frameless Robotic System for Radiosurgery

1997 456 citations John R. Adler, Steven D. Chang et al. Stereotactic and Functional Neurosurgery profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Paul Geis United States	9	703	564	459	180	125	11	994
C. Collen Belgium	17	681 1.0×	649 1.2×	502 1.1×	85 0.5×	137 1.1×	30	1.1k
Mark Carol United States	12	496 0.7×	396 0.7×	451 1.0×	195 1.1×	81 0.6×	27	895
Carlo Cavedon Italy	19	741 1.1×	599 1.1×	736 1.6×	114 0.6×	143 1.1×	63	1.3k
Truus Reynders Belgium	18	938 1.3×	568 1.0×	659 1.4×	117 0.7×	77 0.6×	35	1.1k
Dennis D. Leavitt United States	17	496 0.7×	335 0.6×	277 0.6×	96 0.5×	71 0.6×	60	696
Alan P. Warrington United Kingdom	18	837 1.2×	764 1.4×	581 1.3×	127 0.7×	224 1.8×	28	1.3k
Hiroya Shiomi Japan	20	796 1.1×	730 1.3×	517 1.1×	225 1.3×	69 0.6×	73	1.2k
Shahid A. Naqvi United States	14	701 1.0×	532 0.9×	529 1.2×	145 0.8×	215 1.7×	34	1.1k
Markus Oechsner Germany	18	408 0.6×	423 0.8×	402 0.9×	240 1.3×	105 0.8×	73	967
Florian Stieler Germany	18	990 1.4×	754 1.3×	612 1.3×	128 0.7×	51 0.4×	43	1.2k

Countries citing papers authored by Paul Geis

Since Specialization

Citations

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

Fields of papers citing papers by Paul Geis

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Paul Geis. 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 Paul Geis. The network helps show where Paul Geis may publish in the future.

Co-authorship network of co-authors of Paul Geis

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

All Works

Sort: Min cites: Since: Top N: Style:

11 of 11 papers shown

1.

Wu, Andrew, Mark D. Johnson, Douglas M. Brown, et al.. (2000). A new power law for determination of total 125I seed activity for ultrasound-guided prostate implants: clinical evaluations. International Journal of Radiation Oncology*Biology*Physics. 47(5). 1397–1403. 9 indexed citations

2.

Xia, Ping, Paul Geis, Lei Xing, et al.. (1999). Physical characteristics of a miniature multileaf collimator. Medical Physics. 26(1). 65–70. 66 indexed citations

3.

Ma, Lijun, Arthur L. Boyer, David O. Findley, Paul Geis, & E Mok. (1998). Application of a video-optical beam imaging system for quality assurance of medical accelerators. Physics in Medicine and Biology. 43(12). 3649–3659. 10 indexed citations

4.

Chang, Daniel T., Martin J. Murphy, Paul Geis, et al.. (1998). Clinical Experience with Image-guided Robotic Radiosurgery (the Cyberknife) in the Treatment of Brain and Spinal Cord Tumors. Neurologia medico-chirurgica. 38(11). 780–783. 50 indexed citations

5.

Followill, D, Paul Geis, & A Boyer. (1997). Estimates of whole-body dose equivalent produced by beam intensity modulated conformal therapy. International Journal of Radiation Oncology*Biology*Physics. 38(3). 667–672. 210 indexed citations

6.

Boyer, Arthur L., et al.. (1997). Modulated beam conformal therapy for head and neck tumors. International Journal of Radiation Oncology*Biology*Physics. 39(1). 227–236. 94 indexed citations

7.

Adler, John R., Steven D. Chang, Martin J. Murphy, et al.. (1997). The Cyberknife: A Frameless Robotic System for Radiosurgery. Stereotactic and Functional Neurosurgery. 69(1-4). 124–128. 456 indexed citations breakdown →

8.

Ma, Lijun, Paul Geis, & Arthur L. Boyer. (1997). Quality assurance for dynamic multileaf collimator modulated fields using a fast beam imaging system. Medical Physics. 24(8). 1213–1220. 64 indexed citations

9.

Geis, Paul, K Forster, Ping Xia, et al.. (1997). 2222 Physical characterization of a miniature multileaf collimator. International Journal of Radiation Oncology*Biology*Physics. 39(2). 351–351. 1 indexed citations

10.

Geis, Paul, et al.. (1996). Use of a multileaf collimator as a dynamic missing‐tissue compensator. Medical Physics. 23(7). 1199–1205. 32 indexed citations

11.

Boyer, A, et al.. (1995). 92 Modulated-beam conformal therapy for head and neck tumors. International Journal of Radiation Oncology*Biology*Physics. 32. 187–187. 2 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.

Explore authors with similar magnitude of impact