Roelf Valkema
- Epidemiology top 0.5%
- Oncology top 0.5%
- Radiology, Nuclear Medicine and Imaging top 0.2%
- Neurology top 0.2%
- Pulmonary and Respiratory Medicine top 5%
- Co-authors
- Eric P. KrenningDik J. KwekkeboomMarion de JongP.P.M. KooijLarry K. KvolsStanislas PauwelsWout A. P. BreemanFrançois Jamar
- Topics
- Cardiac Imaging and Diagnostics (58 papers)Neuroendocrine Tumor Research Advances (52 papers)Lung Cancer Research Studies (40 papers)
- Partner nations
- NetherlandsUnited StatesBelgium
In The Last Decade
Roelf Valkema
165 papers receiving 6.9k citations
Peers
Comparison fields: 5 of 132
- Epidemiology 3.8k
- Oncology 3.5k
- Radiology, Nuclear Medicine and Imaging 3.2k
- Neurology 2.5k
- Pulmonary and Respiratory Medicine 819
Countries citing papers authored by Roelf Valkema
This map shows the geographic impact of Roelf Valkema'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 Roelf Valkema with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Roelf Valkema more than expected).
Fields of papers citing papers by Roelf Valkema
This network shows the impact of papers produced by Roelf Valkema. 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 Roelf Valkema. The network helps show where Roelf Valkema may publish in the future.
Co-authorship network of co-authors of Roelf Valkema
This figure shows the co-authorship network connecting the top 25 collaborators of Roelf Valkema. A scholar is included among the top collaborators of Roelf Valkema 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 Roelf Valkema. Roelf Valkema is excluded from the visualization to improve readability, since they are connected to all nodes in the network.
All Works
| # | Work | Indexed citations |
|---|---|---|
| 1 | 1 | |
| 2 | 10 | |
| 3 | 1 | |
| 4 | 5 | |
| 5 | 53 | |
| 6 | Prognostic stratification of obese patients by stress 99mTc-tetrofosmin myocardial perfusion imaging. | 15 |
| 7 | Association of ischemia on stress (99m)Tc-tetrofosmin myocardial perfusion imaging with all-cause mortality in patients with diabetes mellitus. | 11 |
| 8 | Prognostic stratification using dobutamine stress 99mTc-tetrofosmin myocardial perfusion SPECT in elderly patients unable to perform exercise testing. | 20 |
| 9 | Phase 1 study of peptide receptor radionuclide therapy (PRRT) with [Y-90-DOTA,Tyr(3)]octreotide in patients with somatostatin receptor positive tumors | 7 |
| 10 | 20 | |
| 11 | 328 | |
| 12 | 260 | |
| 13 | 19 | |
| 14 | Safety and efficacy of [Y-90-DOTA,Tyr(3)]-octreotide (Y-90-SMT487; OctreoTher) peptide receptor radionuclide therapy (PRRT). Preliminary results of a phase-1 study | 10 |
| 15 | 24 | |
| 16 | 6 | |
| 17 | Single radionuclide scintigraphy with 99mTechnetium-Sestamibi and ultrasonography in hyperparathy-roidism. | 9 |
| 18 | 1 | |
| 19 | Bone mineral density in ambulant, non-steroid treated female patients with rheumatoid arthritis. | 18 |
| 20 | 124 |
About Roelf Valkema
Roelf Valkema is a scholar working on Radiology, Nuclear Medicine and Imaging, Metals and Alloys and Neurology, having authored 168 papers that have together received 7.2k indexed citations. Recurring topics across this work include Cardiac Imaging and Diagnostics (58 papers), Neuroendocrine Tumor Research Advances (52 papers) and Lung Cancer Research Studies (40 papers). The work is most often cited by research in Neurology (2.5k citations), Radiology, Nuclear Medicine and Imaging (3.2k citations) and Oncology (3.5k citations). Roelf Valkema has collaborated with scholars based in Netherlands, United States and Belgium. Frequent co-authors include Eric P. Krenning, Dik J. Kwekkeboom, Marion de Jong, P.P.M. Kooij, Larry K. Kvols, Stanislas Pauwels, Wout A. P. Breeman, François Jamar, Willem H. Bakker and Wouter W. de Herder. Their work appears in journals such as Circulation, Journal of Clinical Oncology and Accounts of Chemical Research.
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.