George A. Kastis

1.2k total citations
44 papers, 857 citations indexed

About

George A. Kastis is a scholar working on Radiology, Nuclear Medicine and Imaging, Biomedical Engineering and Radiation. According to data from OpenAlex, George A. Kastis has authored 44 papers receiving a total of 857 indexed citations (citations by other indexed papers that have themselves been cited), including 32 papers in Radiology, Nuclear Medicine and Imaging, 14 papers in Biomedical Engineering and 8 papers in Radiation. Recurrent topics in George A. Kastis's work include Medical Imaging Techniques and Applications (21 papers), Advanced X-ray and CT Imaging (13 papers) and Advanced MRI Techniques and Applications (8 papers). George A. Kastis is often cited by papers focused on Medical Imaging Techniques and Applications (21 papers), Advanced X-ray and CT Imaging (13 papers) and Advanced MRI Techniques and Applications (8 papers). George A. Kastis collaborates with scholars based in Greece, United States and United Kingdom. George A. Kastis's co-authors include Harrison H. Barrett, Lars R. Furenlid, Donald W. Wilson, W. E. Bron, Zsolt Bor, Tibor Juhász, C. Suárez, A. S. Fokas, Gail D. Stevenson and Matthew A. Kupinski and has published in prestigious journals such as SHILAP Revista de lepidopterología, American Journal of Respiratory and Critical Care Medicine and CHEST Journal.

In The Last Decade

George A. Kastis

41 papers receiving 824 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
George A. Kastis Greece 15 514 249 126 103 100 44 857
Enrique Berjano Spain 26 350 0.7× 1.0k 4.0× 21 0.2× 33 0.3× 157 1.6× 167 2.4k
Xueli Chen China 18 596 1.2× 511 2.1× 51 0.4× 94 0.9× 100 1.0× 70 875
Marleen Keijzer Netherlands 15 746 1.5× 618 2.5× 144 1.1× 96 0.9× 247 2.5× 20 1.1k
Christoph Kolbitsch Germany 19 921 1.8× 321 1.3× 116 0.9× 130 1.3× 33 0.3× 91 1.1k
Andre Fleck Canada 9 116 0.2× 160 0.6× 146 1.2× 29 0.3× 79 0.8× 23 518
Zhi Chen China 21 597 1.2× 185 0.7× 389 3.1× 156 1.5× 249 2.5× 81 1.3k
R. Nowotny Austria 16 360 0.7× 319 1.3× 208 1.7× 24 0.2× 161 1.6× 47 841
M.G. Sabini Italy 19 354 0.7× 100 0.4× 318 2.5× 36 0.3× 427 4.3× 52 868
L. Azario Italy 25 949 1.8× 266 1.1× 1.1k 9.0× 87 0.8× 898 9.0× 103 1.8k

Countries citing papers authored by George A. Kastis

Since Specialization
Citations

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

Fields of papers citing papers by George A. Kastis

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of George A. Kastis

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

All Works

20 of 20 papers shown
1.
Toumpanakis, Dimitrios, Konstantinos Karagiannis, Paolo Paredi, et al.. (2025). Contribution of Peripheral Airways Dysfunction to Poor Quality of Life in Sarcoidosis. CHEST Journal. 168(2). 423–434.
2.
Marinakis, Vangelis, et al.. (2023). Chebyshev Interpolation Using Almost Equally Spaced Points and Applications in Emission Tomography. Mathematics. 11(23). 4757–4757.
3.
Katsamenis, Iason, Νικόλαος Δικαίος, George A. Kastis, et al.. (2022). A few-shot U-Net deep learning model for lung cancer lesion segmentation via PET/CT imaging. Biomedical Physics & Engineering Express. 8(2). 25019–25019. 41 indexed citations
4.
Fokas, A. S., et al.. (2022). Reconstruction of Preclinical PET Images via Chebyshev Polynomial Approximation of the Sinogram. Applied Sciences. 12(7). 3335–3335. 3 indexed citations
5.
Fokas, A. S., et al.. (2022). Sigmoid and Beyond: Algebraic Activation Functions for Artificial Neural Networks Based on Solutions of a Riccati Equation. IT Professional. 24(5). 30–36. 1 indexed citations
6.
Kastis, George A., et al.. (2022). Discrete Shearlets as a Sparsifying Transform in Low-Rank Plus Sparse Decomposition for Undersampled (k, t)-Space MR Data. Journal of Imaging. 8(2). 29–29. 3 indexed citations
7.
Kastis, George A., A. S. Fokas, Stephan G. Nekolla, et al.. (2022). Evaluation of the spline reconstruction technique for preclinical PET imaging. Computer Methods and Programs in Biomedicine. 217. 106668–106668. 1 indexed citations
8.
Kastis, George A., et al.. (2022). Motion-Compensated PET Image Reconstruction via Separable Parabolic Surrogates. Mathematics. 11(1). 55–55. 3 indexed citations
9.
Fokas, A. S. & George A. Kastis. (2021). SARS-CoV-2: The Second Wave in Europe. Journal of Medical Internet Research. 23(5). e22431–e22431. 6 indexed citations
10.
Fokas, A. S., Νικόλαος Δικαίος, & George A. Kastis. (2021). Covid-19: predictive mathematical formulae for the number of deaths during lockdown and possible scenarios for the post-lockdown period. Proceedings of the Royal Society A Mathematical Physical and Engineering Sciences. 477(2249). 20200745–20200745. 7 indexed citations
11.
Fokas, A. S., Νικόλαος Δικαίος, & George A. Kastis. (2020). Mathematical models and deep learning for predicting the number of individuals reported to be infected with SARS-CoV-2. Journal of The Royal Society Interface. 17(169). 20200494–20200494. 45 indexed citations
12.
Tsoukalas, C., Dimitrios Psimadas, George A. Kastis, et al.. (2018). A Novel Metal-Based Imaging Probe for Targeted Dual-Modality SPECT/MR Imaging of Angiogenesis. Frontiers in Chemistry. 6. 224–224. 38 indexed citations
13.
Spyrou, George M., et al.. (2017). Automatic cumulative sums contour detection of FBP-reconstructed multi-object nuclear medicine images. Computers in Biology and Medicine. 85. 43–52. 3 indexed citations
14.
15.
Kastis, George A., et al.. (2014). Evaluation of the spline reconstruction technique for PET. Medical Physics. 41(4). 42501–42501. 7 indexed citations
16.
Kastis, George A., Ioanna Sigala, Constantinos Glynos, et al.. (2010). Inspiratory Resistive Breathing Induces Acute Lung Injury. American Journal of Respiratory and Critical Care Medicine. 182(9). 1129–1136. 56 indexed citations
17.
Fokas, A. S., et al.. (2009). Analytical reconstructions for PET and spect employing L<sup>1</sup>-denoising. King Abdullah University of Science and Technology Repository (King Abdullah University of Science and Technology). 39. 1–5. 2 indexed citations
18.
Kupinski, Matthew A., Donald W. Wilson, Todd E. Peterson, et al.. (2003). Evaluating estimation techniques in medical imaging without a gold standard: experimental validation. Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE. 5034. 230–230. 9 indexed citations
19.
Kupinski, Matthew A., et al.. (2002). Estimation in Medical Imaging without a Gold Standard. Academic Radiology. 9(3). 290–297. 31 indexed citations
20.
Juhász, Tibor, George A. Kastis, C. Suárez, Zsolt Bor, & W. E. Bron. (1996). Time‐resolved observations of shock waves and cavitation bubbles generated by femtosecond laser pulses in corneal tissue and water. Lasers in Surgery and Medicine. 19(1). 23–31. 9 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

Breakdown of academic impact, for papers by Enrique Berjano Breakdown of academic impact, for papers by Xueli Chen Breakdown of academic impact, for papers by Marleen Keijzer Breakdown of academic impact, for papers by Christoph Kolbitsch Breakdown of academic impact, for papers by Andre Fleck Breakdown of academic impact, for papers by Zhi Chen Breakdown of academic impact, for papers by R. Nowotny Breakdown of academic impact, for papers by M.G. Sabini Breakdown of academic impact, for papers by L. Azario
Rankless by CCL
2026