D Roa

560 total citations
39 papers, 327 citations indexed

About

D Roa is a scholar working on Radiation, Radiology, Nuclear Medicine and Imaging and Pulmonary and Respiratory Medicine. According to data from OpenAlex, D Roa has authored 39 papers receiving a total of 327 indexed citations (citations by other indexed papers that have themselves been cited), including 22 papers in Radiation, 15 papers in Radiology, Nuclear Medicine and Imaging and 11 papers in Pulmonary and Respiratory Medicine. Recurrent topics in D Roa's work include Advanced Radiotherapy Techniques (17 papers), Radiation Dose and Imaging (6 papers) and Advances in Oncology and Radiotherapy (6 papers). D Roa is often cited by papers focused on Advanced Radiotherapy Techniques (17 papers), Radiation Dose and Imaging (6 papers) and Advances in Oncology and Radiotherapy (6 papers). D Roa collaborates with scholars based in United States, Peru and Germany. D Roa's co-authors include Robert K. Smither, Nilam Ramsinghani, Muthana Al‐Ghazi, Charles L. Limoli, Munjal M. Acharya, G. K. Skinner, Mark A. Beno, P. von Ballmoos, K. Abu Saleem and Lori‐Ann Christie and has published in prestigious journals such as Journal of Applied Physics, International Journal of Radiation Oncology*Biology*Physics and Medical Physics.

In The Last Decade

D Roa

36 papers receiving 321 citations

Peers

D Roa

RADIA

RNMI

PRM

GENET

CMP

Hendrik Ballhausen Germany

Muthana Al‐Ghazi United States

G.V.S. RAYUDU United States

Karin Hellerhoff Germany

M. Tatcher Israel

Emanuel Bahn Germany

Kiyoshi Yoda Japan

Christos Bikis Switzerland

Susanne Grandl Germany

D Beachey Canada

Hendrik Ballhausen Germany

D Roa

266 ×1.8

RADIA

181 ×1.4

RNMI

238 ×2.8

PRM

27 ×0.4

GENET

21 ×0.5

CMP

Citations per year, relative to D Roa D Roa (= 1×) peers Hendrik Ballhausen

Countries citing papers authored by D Roa

Since Specialization

Citations

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

Fields of papers citing papers by D Roa

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of D Roa

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

Roa, D, et al.. (2025). Feasibility of a 3D cubic electronic detector array for radiotherapy quality assurance. Medical Physics. 52(11). e70134–e70134.

Sarria, Gustavo R., et al.. (2022). Longitudinal Remote SBRT/SRS Training in Latin America: A Prospective Cohort Study. Frontiers in Oncology. 12. 851849–851849. 5 indexed citations

Tajima, T., et al.. (2022). Laser Beat-Wave Acceleration near Critical Density. Photonics. 9(7). 476–476. 8 indexed citations

Li, Benjamin, Gustavo R. Sarria, Bertha García, et al.. (2020). Impact of a SBRT/SRS longitudinal telehealth training pilot course in Latin America. Critical Reviews in Oncology/Hematology. 154. 103072–103072. 8 indexed citations

Roa, D, et al.. (2020). Flattening filter free beam energy selection and its impact in multitarget intracranial stereotactic radiosurgery treatments. Medical dosimetry. 45(4). 363–367. 5 indexed citations

Roa, D, Gustavo R. Sarria, Benjamin Li, et al.. (2020). Dose simulations of an early 20th century kilovoltage pneumonia radiotherapy technique performed with a modern fluoroscope. Medical dosimetry. 46(1). 74–79. 1 indexed citations

Castañeda, Serguei A., Alexander D. Sherry, Jijun Hao, et al.. (2019). The Implementation of Rayos Contra Cancer: Beginning a Global Health Social Enterprise. International Journal of Radiation Oncology*Biology*Physics. 105(1). E443–E444. 2 indexed citations

Parihar, Vipan K., et al.. (2014). Defining functional changes in the brain caused by targeted stereotaxic radiosurgery.. PubMed. 3(2). 124–137. 31 indexed citations

Roa, D, et al.. (2012). The use of RapidArc volumetric-modulated arc therapy to deliver stereotactic radiosurgery and stereotactic body radiotherapy to intracranial and extracranial targets. Medical dosimetry. 37(3). 257–264. 39 indexed citations

10.

Lin, Yen‐Yu, Daniel Chang, Daniela A. Bota, et al.. (2012). SU‐E‐J‐108: Quantitative Analysis of Longitudinal Cognitive Impairment Due to Radiation Therapy Based on Automatic Segmentation of Hippocampus and Subcortical Structure. Medical Physics. 39(6Part7). 3677–3677. 1 indexed citations

11.

Lin, You‐Yu, Charles L. Limoli, Munjal M. Acharya, et al.. (2012). SU‐E‐T‐271: Irradiating a Single Hippocampus in a Small Rodent Using VMAT‐ RapidArc SRS: Preliminary Data. Medical Physics. 39(6Part14). 3765–3766. 1 indexed citations

12.

Acharya, Munjal M., et al.. (2011). Stem Cell Transplantation Strategies for the Restoration of Cognitive Dysfunction Caused by Cranial Radiotherapy. Journal of Visualized Experiments. 8 indexed citations

13.

Fife, Douglas, Arisa Ortiz, D Roa, et al.. (2010). A Randomized, Controlled, Double-Blind Study of Light Emitting Diode Photomodulation for the Prevention of Radiation Dermatitis in Patients with Breast Cancer. Dermatologic Surgery. 36(12). 1921–1927. 39 indexed citations

14.

Song, Haijun, D Roa, Ning J. Yue, et al.. (2006). Application of Gafchromic® film in the dosimetry of an intravascular brachytherapy source. Medical Physics. 33(7Part1). 2519–2524. 2 indexed citations

15.

Roa, D, R. K. Smither, Kai Nie, et al.. (2006). Development of a new photon diffraction imaging system for diagnostic nuclear medicine. Experimental Astronomy. 20(1-3). 229–239. 25 indexed citations

16.

Roa, D, Haijun Song, Ning J. Yue, Francesco d’Errico, & Ravinder Nath. (2004). Dosimetric characteristics of the Novoste Beta‐Cath source trains at submillimeter distances. Medical Physics. 31(5). 1269–1276. 9 indexed citations

17.

Roa, D, Haijun Song, Ning J. Yue, Francesco d’Errico, & Ravinder Nath. (2002). Measured TG-60 dosimetric parameters of the Novoste Beta-Cath 90Sr/Y source trains for intravascular brachytherapy. PubMed. 3(3-4). 199–204. 8 indexed citations

18.

Fasold, H., et al.. (2001). Hydroxyurea-induced oxidative damage of normal and sickle cell hemoglobins in vitro: Amelioration by radical scavengers. Journal of Clinical Laboratory Analysis. 15(1). 1–7. 14 indexed citations

19.

Roa, D, et al.. (1997). Hydroxyurea-induced denaturation of normal and sickle cell hemoglobins in vitro. Journal of Clinical Laboratory Analysis. 11(4). 208–213. 7 indexed citations

20.

Roa, D, et al.. (1996). Targets and target wheel mechanism for APEX. Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment. 368(2). 307–313. 1 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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