F. Helus

495 total citations
17 papers, 362 citations indexed

About

F. Helus is a scholar working on Radiology, Nuclear Medicine and Imaging, Cancer Research and Materials Chemistry. According to data from OpenAlex, F. Helus has authored 17 papers receiving a total of 362 indexed citations (citations by other indexed papers that have themselves been cited), including 12 papers in Radiology, Nuclear Medicine and Imaging, 8 papers in Cancer Research and 3 papers in Materials Chemistry. Recurrent topics in F. Helus's work include Medical Imaging Techniques and Applications (10 papers), Cancer, Hypoxia, and Metabolism (8 papers) and Radiopharmaceutical Chemistry and Applications (6 papers). F. Helus is often cited by papers focused on Medical Imaging Techniques and Applications (10 papers), Cancer, Hypoxia, and Metabolism (8 papers) and Radiopharmaceutical Chemistry and Applications (6 papers). F. Helus collaborates with scholars based in Germany, Netherlands and Canada. F. Helus's co-authors include Franz Oberdorfer, H. Ostertag, A. Dimitrakopoulou, Ludwig G. Strauss, G. van Kaick, Uwe Haberkorn, Sibylle Ziegler, J. Doll, Ch. Reißer and Wolfram H. Knapp and has published in prestigious journals such as Circulation, Journal of the American College of Cardiology and International Journal of Radiation Oncology*Biology*Physics.

In The Last Decade

F. Helus

17 papers receiving 344 citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
F. Helus Germany	10	249	67	65	47	38	17	362
Toshimi Sato Japan	10	157 0.6×	78 1.2×	66 1.0×	62 1.3×	21 0.6×	25	367
Katsuya Sugimoto Japan	9	211 0.8×	84 1.3×	55 0.8×	20 0.4×	11 0.3×	19	329
H Vogleŕ Germany	12	348 1.4×	150 2.2×	46 0.7×	64 1.4×	14 0.4×	18	551
T Inoue Japan	10	207 0.8×	91 1.4×	110 1.7×	36 0.8×	33 0.9×	36	443
D.F. Sacker United States	7	362 1.5×	154 2.3×	143 2.2×	112 2.4×	21 0.6×	20	599
Kenji Yutani Japan	13	371 1.5×	151 2.3×	134 2.1×	61 1.3×	26 0.7×	18	477
DA Piers Netherlands	8	326 1.3×	153 2.3×	81 1.2×	59 1.3×	24 0.6×	25	648
C Weiler United States	6	90 0.4×	64 1.0×	31 0.5×	189 4.0×	25 0.7×	8	426
Phillips Tl United States	12	136 0.5×	143 2.1×	57 0.9×	96 2.0×	5 0.1×	22	466
D. Greg Farwell United States	5	202 0.8×	74 1.1×	186 2.9×	31 0.7×	5 0.1×	5	374

Countries citing papers authored by F. Helus

Since Specialization

Citations

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

Fields of papers citing papers by F. Helus

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of F. Helus

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

All Works

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17 of 17 papers shown

Haberkorn, Uwe, Ludwig G. Strauss, A. Dimitrakopoulou, et al.. (1993). Fluorodeoxyglucose imaging of advanced head and neck cancer after chemotherapy.. PubMed. 34(1). 12–7. 110 indexed citations

Dimitrakopoulou, A., Ludwig G. Strauss, John H. Clorius, et al.. (1993). Studies with positron emission tomography after systemic administration of fluorine-18-uracil in patients with liver metastases from colorectal carcinoma.. PubMed. 34(7). 1075–81. 54 indexed citations

Helus, F., Klaus Weber, Stefan Zeisler, & W. Maier‐Borst. (1991). An automatic system for the enzymatic synthesis of13N-glutamate. Journal of Radioanalytical and Nuclear Chemistry. 155(1). 9–13. 3 indexed citations

Knapp, Wolfram H., et al.. (1989). Increased thermal response to ultrasound in the Walker carcinosarcoma treated with vasoactive drugs.. PubMed. 49(7). 1768–72. 5 indexed citations

Zimmermann, Rainer, Harald Tillmanns, Wolfram H. Knapp, et al.. (1988). Regional myocardial nitrogen-13 glutamate uptake in patients with coronary artery disease: Inverse post-stress relation to thallium-201 uptake in ischemia. Journal of the American College of Cardiology. 11(3). 549–556. 22 indexed citations

Knapp, Wolfram H., et al.. (1988). Effect of methotrexate on perfusion and nitrogen-13 glutamate uptake in the Walker-256 carcinosarcoma.. PubMed. 29(2). 208–16. 3 indexed citations

Knapp, Wolfram H., et al.. (1986). Nitrogen-13 glutamate uptake and perfusion in Walker 256 carcinosarcoma before and after single-dose irradiation.. PubMed. 27(10). 1604–10. 7 indexed citations

Helus, F., et al.. (1985). 11C-Butanol for imaging of the blood-flow distribution in tumor-bearing animals. European Journal of Nuclear Medicine and Molecular Imaging. 10-10(11-12). 540–8. 12 indexed citations

Wiebe, Leonard I., et al.. (1985). Radiolabeled L-Fucose for diagnostic oncology: Preliminary studies in mice and rats using l-1-14C-fucose. International Journal of Nuclear Medicine and Biology. 12(2). 111–114. 2 indexed citations

10.

Rauch, Bernhard H., F. Helus, M. Grunze, et al.. (1985). Kinetics of 13N-ammonia uptake in myocardial single cells indicating potential limitations in its applicability as a marker of myocardial blood flow.. Circulation. 71(2). 387–393. 42 indexed citations

11.

Knapp, Wolfram H., et al.. (1985). Selective drug-induced reduction of blood flow in tumor transplants. International Journal of Radiation Oncology*Biology*Physics. 11(7). 1357–1366. 24 indexed citations

12.

Helus, F., et al.. (1984). Assessment of tumor blood flow using C-11 butanol. OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information). 1 indexed citations

13.

Knapp, Wolfram H., et al.. (1984). N-13 L-glutamate uptake in malignancy: its relationship to blood flow.. PubMed. 25(9). 989–97. 10 indexed citations

14.

Helus, F., et al.. (1982). Uptake and turnover of L-(13N)-glutamate in the normal human heart and in patients with coronary artery disease. European Journal of Nuclear Medicine and Molecular Imaging. 7(5). 211–5. 29 indexed citations

15.

Helus, F., et al.. (1981). Nitrogen Dioxide and the Isoelectronic COOH Group as 5‐Electron Donors in Carbonylmetal Complexes; Preparation and Characterization of the First “Metallacarboxylic Acid”. Angewandte Chemie International Edition in English. 20(5). 470–471. 16 indexed citations

16.

Helus, F., et al.. (1981). Stickstoffdioxid und die isoelektronische COOH‐Gruppe als 5‐Elektronendonoren in Carbonylmetallkomplexen; Herstellung und Charakterisierung der ersten ”Metallacarbonsäure„. Angewandte Chemie. 93(5). 479–480. 8 indexed citations

17.

Helus, F., et al.. (1980). Kr-81m for determination of right ventricular ejection fraction (RVEF). European Journal of Nuclear Medicine and Molecular Imaging. 5(6). 487–92. 14 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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