Daniel A. Hamstra

8.3k total citations · 2 hit papers
159 papers, 5.0k citations indexed

About

Daniel A. Hamstra is a scholar working on Pulmonary and Respiratory Medicine, Radiation and Radiology, Nuclear Medicine and Imaging. According to data from OpenAlex, Daniel A. Hamstra has authored 159 papers receiving a total of 5.0k indexed citations (citations by other indexed papers that have themselves been cited), including 104 papers in Pulmonary and Respiratory Medicine, 54 papers in Radiation and 34 papers in Radiology, Nuclear Medicine and Imaging. Recurrent topics in Daniel A. Hamstra's work include Prostate Cancer Diagnosis and Treatment (88 papers), Prostate Cancer Treatment and Research (74 papers) and Advanced Radiotherapy Techniques (54 papers). Daniel A. Hamstra is often cited by papers focused on Prostate Cancer Diagnosis and Treatment (88 papers), Prostate Cancer Treatment and Research (74 papers) and Advanced Radiotherapy Techniques (54 papers). Daniel A. Hamstra collaborates with scholars based in United States, Canada and Germany. Daniel A. Hamstra's co-authors include Alnawaz Rehemtulla, Brian D. Ross, Thomas L. Chenevert, Howard M. Sandler, Timothy D. Johnson, Theodore S. Lawrence, Charles R. Meyer, Felix Y. Feng, Christina Tsien and Larry Junck and has published in prestigious journals such as Proceedings of the National Academy of Sciences, Journal of the American Chemical Society and Journal of Clinical Investigation.

In The Last Decade

Daniel A. Hamstra

145 papers receiving 4.9k 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.

Contemporary Update of a Multi-Institutional Predictive Nomogram for Salvage Radiotherapy After Radical Prostatectomy

2016 229 citations Thomas M. Pisansky, Daniel A. Hamstra et al. Journal of Clinical Oncology profile →
Effect of Standard vs Dose-Escalated Radiation Therapy for Patients With Intermediate-Risk Prostate Cancer

2018 225 citations Daniel A. Hamstra, Howard M. Sandler et al. profile →

Peers

Countries citing papers authored by Daniel A. Hamstra

Since Specialization

Citations

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

Fields of papers citing papers by Daniel A. Hamstra

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Daniel A. Hamstra. 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 Daniel A. Hamstra. The network helps show where Daniel A. Hamstra may publish in the future.

Co-authorship network of co-authors of Daniel A. Hamstra

This figure shows the co-authorship network connecting the top 25 collaborators of Daniel A. Hamstra. A scholar is included among the top collaborators of Daniel A. Hamstra 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 Daniel A. Hamstra. Daniel A. Hamstra 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

#	Work	Indexed citations
1	Association Between Rectal Spacer Use and Erectile Dysfunction Diagnosis Among Men Receiving Prostate Radiotherapy: US County‐Level Analysis 2025 ·Cancer Medicine ·(unknown), Sean P. Collins, Ryoko Sato, Parthiv Mehta, (unknown), (unknown), Daniel A. Hamstra	0
2	Bowel Disorder Incidence and Rectal Spacer Use in Patients With Prostate Cancer Undergoing Radiotherapy 2025 ·JAMA Network Open ·Michael R. Folkert, (unknown), James B. Yu, (unknown), Samir Bhattacharyya, (unknown), Daniel A. Hamstra	1
3	Cervical Clear Cell Adenocarcinoma: Real-World Insights on Patient Profiles, Treatments and Comparative Efficacy of Locoregional Treatments 2024 ·International Journal of Radiation OncologyBiologyPhysics ·Sameer Jhavar, (unknown), Daniel A. Hamstra, T.R. Hall, Claire Hoppenot, (unknown), (unknown), (unknown)	0
4	Two phase 2A clinical trials to evaluate the safety and efficacy of IMSA101 in combination with radiotherapy and checkpoint inhibitors in oligometastatic and oligoprogressive solid tumor malignancies. 2024 ·Journal of Clinical Oncology ·(unknown), Jyoti Malhotra, (unknown), Mona Arbab, (unknown), (unknown), Matthew P. Deek, Edward G. Garmey, Daniel A. Hamstra, Mai Anh Huynh, Aryavarta M. S. Kumar, (unknown), Benjamin L. Maughan, (unknown), Nitin Ohri, (unknown), Gregory Vlacich, (unknown), (unknown), Robert Timmerman	4
5	Apparent diffusion coefficient values predict response to brachytherapy in bulky cervical cancer 2024 ·Radiation Oncology ·E Dong, Junqian Xu, (unknown), Jason Bryan, (unknown), Daniel A. Hamstra, Michelle Ludwig, Alexander N. Hanania	1
6	Testicular Dysfunction in Male Childhood Cancer Survivors Treated With Radiation Therapy: A PENTEC Comprehensive Review 2023 ·International Journal of Radiation OncologyBiologyPhysics ·Sujith Baliga, Samir Patel, Issam El Naqa, X. Allen Li, Laurie E. Cohen, Rebecca M. Howell, Bradford S. Hoppe, Louis S. Constine, Joshua D. Palmer, Daniel A. Hamstra, Arthur J. Olch	8
7	Ethical Allocation of Proton Therapy and the Insurance Review Process 2021 ·Practical Radiation Oncology ·(unknown), Thomas J. Quinn, Tracey E. Wilson, (unknown), Mark C. Navin, Daniel A. Hamstra, Joseph Anderson, Prakash Chinnaiyan, Craig Stevens, Peyman Kabolizadeh	1
8	Gleason pattern 5 is associated with an increased risk for metastasis following androgen deprivation therapy and radiation: An analysis of RTOG 9202 and 9902 2019 ·Radiotherapy and Oncology ·Daniel A. Hamstra, Stephanie L. Pugh, Herbert Lepor, Seth A. Rosenthal, Kenneth J. Pienta, Leonard G. Gomella, Christopher A. Peters, David D’Souza, Kenneth L. Zeitzer, Christopher U. Jones, William A. Hall, Eric M. Horwitz, Thomas M. Pisansky, Luís Souhami, Alan C. Hartford, M.M. Dominello, Felix Y. Feng, Howard M. Sandler	6
9	Concurrent gemcitabine and radiotherapy for the treatment of muscle-invasive bladder cancer: A pooled individual data analysis of eight phase I–II trials 2016 ·Radiotherapy and Oncology ·Orazio Caffo, Catherine Thompson, Maria De Santis, (unknown), Daniel A. Hamstra, D. Azria, Gianni Fellin, Giovanni Pappagallo, Enzo Galligioni, Ananya Choudhury	37
10	A comprehensive assessment of the prognostic utility of the Stephenson nomogram for salvage radiation therapy postprostatectomy 2014 ·Practical Radiation Oncology ·Skyler B. Johnson, Will Jackson, Corey Speers, Felix Y. Feng, Daniel A. Hamstra	7
11	The Interval to Biochemical Failure Is Prognostic for Metastasis, Prostate Cancer-Specific, and Overall Mortality Following Salvage Radiation Therapy for Prostate Cancer 2013 ·International Journal of Radiation OncologyBiologyPhysics ·Skyler B. Johnson, Will Jackson, Corey C. Foster, (unknown), Ganesh S. Palapattu, Howard M. Sandler, Felix Y. Feng, Daniel A. Hamstra	1
12	The addition of low‐dose‐rate brachytherapy and androgen‐deprivation therapy decreases biochemical failure and prostate cancer death compared with dose‐escalated external‐beam radiation therapy for high‐risk prostate cancer 2012 ·Cancer ·Mark Shilkrut, Gregory S. Merrick, Patrick W. McLaughlin, Matthew H. Stenmark, Eyad Abu‐Isa, Sean Vance, Howard M. Sandler, Felix Y. Feng, Daniel A. Hamstra	34
13	The Dosimetric Impact of Prostate Rotations During Electromagnetically Guided External-Beam Radiation Therapy 2012 ·International Journal of Radiation OncologyBiologyPhysics ·H. Amro, Daniel A. Hamstra, Daniel L. McShan, (unknown), K.A. Vineberg, Scott Hadley, Dale W. Litzenberg	43
14	Age and Comorbid Illness Are Associated With Late Rectal Toxicity Following Dose-Escalated Radiation Therapy for Prostate Cancer 2012 ·International Journal of Radiation OncologyBiologyPhysics ·Daniel A. Hamstra, (unknown), (unknown), Dale W. Litzenberg, Will Jackson, Skyler B. Johnson, (unknown), (unknown), Laura E. Phelps, Kevin Blas, Schuyler Halverson, Robin Marsh, Karin Olson, Felix Y. Feng	40
15	Continued Benefit to Androgen Deprivation Therapy for Prostate Cancer Patients Treated With Dose-Escalated Radiation Therapy Across Multiple Definitions of High-Risk Disease 2011 ·International Journal of Radiation OncologyBiologyPhysics ·Matthew H. Stenmark, Kevin Blas, Schuyler Halverson, Howard M. Sandler, Felix Y. Feng, Daniel A. Hamstra	30
16	Pharmacokinetic Analysis and Phase 1 Study of MRX-1024 in Patients Treated with Radiation Therapy with or without Cisplatinum for Head and Neck Cancer 2010 ·Clinical Cancer Research ·Daniel A. Hamstra, Avraham Eisbruch, (unknown), Gogula V. Ramana, Prasad S. Sunkara, Kathleen C. M. Campbell, Brian D. Ross, Alnawaz Rehemtulla	21
17	Parametric Response Map As an Imaging Biomarker to Distinguish Progression From Pseudoprogression in High-Grade Glioma 2010 ·Journal of Clinical Oncology ·Christina Tsien, Craig J. Galbán, Thomas L. Chenevert, Timothy D. Johnson, Daniel A. Hamstra, Pia C. Sundgren, Larry Junck, Charles R. Meyer, Alnawaz Rehemtulla, Theodore S. Lawrence, Brian D. Ross	159
18	Inhibition of mTOR Radiosensitizes Soft Tissue Sarcoma and Tumor Vasculature 2009 ·Clinical Cancer Research ·James D. Murphy, Aaron C. Spalding, (unknown), Sonja M. Markwart, Michael E. Ray, Daniel A. Hamstra	40
19	Functional Diffusion Map As an Early Imaging Biomarker for High-Grade Glioma: Correlation With Conventional Radiologic Response and Overall Survival 2008 ·Journal of Clinical Oncology ·Daniel A. Hamstra, Craig J. Galbán, Charles R. Meyer, Timothy D. Johnson, Pia C. Sundgren, Christina Tsien, Theodore S. Lawrence, Larry Junck, David J. Ross, Alnawaz Rehemtulla, Brian D. Ross, Thomas L. Chenevert	214
20	Evaluation of d -Methionine as a Novel Oral Radiation Protector for Prevention of Mucositis 2008 ·Clinical Cancer Research ·Saleha B. Vuyyuri, Daniel A. Hamstra, (unknown), Christin A. Hamilton, Sonja M. Markwart, Kathleen C. M. Campbell, Prasad S. Sunkara, Brian D. Ross, Alnawaz Rehemtulla	47

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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