João Afonso

936 total citations
55 papers, 479 citations indexed

About

João Afonso is a scholar working on Oncology, Gastroenterology and Pulmonary and Respiratory Medicine. According to data from OpenAlex, João Afonso has authored 55 papers receiving a total of 479 indexed citations (citations by other indexed papers that have themselves been cited), including 34 papers in Oncology, 33 papers in Gastroenterology and 27 papers in Pulmonary and Respiratory Medicine. Recurrent topics in João Afonso's work include Gastrointestinal Bleeding Diagnosis and Treatment (33 papers), Colorectal Cancer Screening and Detection (28 papers) and Gastric Cancer Management and Outcomes (19 papers). João Afonso is often cited by papers focused on Gastrointestinal Bleeding Diagnosis and Treatment (33 papers), Colorectal Cancer Screening and Detection (28 papers) and Gastric Cancer Management and Outcomes (19 papers). João Afonso collaborates with scholars based in Portugal, Spain and United States. João Afonso's co-authors include Tiago Ribeiro, João Ferreira, Guilherme Macedo, Miguel Mascarenhas, Hélder Cardoso, Patrícia Andrade, Renato Natal Jorge, Marco Parente, Filipe Vilas‐Boas and Susana Lopes and has published in prestigious journals such as SHILAP Revista de lepidopterología, Scientific Reports and The American Journal of Gastroenterology.

In The Last Decade

João Afonso

48 papers receiving 470 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
João Afonso Portugal 14 277 224 212 197 98 55 479
Tiago Ribeiro Portugal 15 285 1.0× 236 1.1× 219 1.0× 208 1.1× 97 1.0× 57 506
Ayako Nakada Japan 9 308 1.1× 350 1.6× 168 0.8× 238 1.2× 83 0.8× 13 530
Akiyoshi Tsuboi Japan 9 413 1.5× 551 2.5× 284 1.3× 342 1.7× 123 1.3× 42 803
Masato Nakahori Japan 9 275 1.0× 369 1.6× 196 0.9× 222 1.1× 79 0.8× 17 524
Fanhua Ming China 5 157 0.6× 157 0.7× 95 0.4× 131 0.7× 100 1.0× 7 351
Maarten R. Struyvenberg Netherlands 11 298 1.1× 75 0.3× 469 2.2× 473 2.4× 175 1.8× 30 727
Joost van der Putten Netherlands 9 273 1.0× 66 0.3× 402 1.9× 432 2.2× 174 1.8× 32 654
Andrew Ninh United States 7 251 0.9× 57 0.3× 142 0.7× 195 1.0× 129 1.3× 23 401
James Requa United States 7 276 1.0× 54 0.2× 149 0.7× 208 1.1× 137 1.4× 22 422
Ahmad Albshesh Israel 8 131 0.5× 125 0.6× 98 0.5× 62 0.3× 49 0.5× 24 282

Countries citing papers authored by João Afonso

Since Specialization
Citations

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

Fields of papers citing papers by João Afonso

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of João Afonso

This figure shows the co-authorship network connecting the top 25 collaborators of João Afonso. A scholar is included among the top collaborators of João Afonso 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 João Afonso. João Afonso 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.
Mascarenhas, Miguel, Tiago Ribeiro, João Afonso, et al.. (2025). Explainable AI in Digestive Healthcare and Gastrointestinal Endoscopy. Journal of Clinical Medicine. 14(2). 549–549. 3 indexed citations
2.
Mascarenhas, Miguel, João Afonso, Joana Mota, et al.. (2025). Evaluating ChatGPT-4 for the Interpretation of Images from Several Diagnostic Techniques in Gastroenterology. Journal of Clinical Medicine. 14(2). 572–572. 2 indexed citations
3.
Mascarenhas, Miguel, João Afonso, Joana Mota, et al.. (2025). AI-Assisted Capsule Endoscopy for Detection of Ulcers and Erosions in Crohn’s Disease: A Multicenter Validation Study. Clinical Gastroenterology and Hepatology.
4.
Mascarenhas, Miguel, Tiago Ribeiro, João Afonso, et al.. (2024). Software as a Medical Device (SaMD) in Digestive Healthcare: Regulatory Challenges and Ethical Implications. Diagnostics. 14(18). 2100–2100. 4 indexed citations
5.
Mota, Joana, Maria João Almeida, João Afonso, et al.. (2024). Artificial Intelligence in Coloproctology: A Review of Emerging Technologies and Clinical Applications. Journal of Clinical Medicine. 13(19). 5842–5842. 1 indexed citations
6.
Mascarenhas, Miguel, João Afonso, Tiago Ribeiro, et al.. (2024). Deep learning and minimally invasive inflammatory activity assessment: a proof-of-concept study for development and score correlation of a panendoscopy convolutional network. Therapeutic Advances in Gastroenterology. 17. 1118434545–1118434545. 5 indexed citations
7.
Mascarenhas, Miguel, Mariano González-Haba, Jessica Widmer, et al.. (2024). Deep Learning and Automatic Differentiation of Pancreatic Lesions in Endoscopic Ultrasound: A Transatlantic Study. Clinical and Translational Gastroenterology. 15(11). e00771–e00771. 5 indexed citations
8.
Mota, Joana, Maria João Almeida, Tiago Ribeiro, et al.. (2024). A Comprehensive Review of Artificial Intelligence and Colon Capsule Endoscopy: Opportunities and Challenges. Diagnostics. 14(18). 2072–2072. 3 indexed citations
9.
Mota, Joana, Maria João Almeida, Tiago Ribeiro, et al.. (2024). From Data to Insights: How Is AI Revolutionizing Small-Bowel Endoscopy?. Diagnostics. 14(3). 291–291. 10 indexed citations
10.
11.
Ribeiro, Tiago, Miguel Mascarenhas, João Afonso, et al.. (2023). Design of a Convolutional Neural Network as a Deep Learning Tool for the Automatic Classification of Small-Bowel Cleansing in Capsule Endoscopy. Medicina. 59(4). 810–810. 6 indexed citations
12.
Mascarenhas, Miguel, Tiago Ribeiro, Mariano González-Haba, et al.. (2023). Deep Learning for Automatic Diagnosis and Morphologic Characterization of Malignant Biliary Strictures Using Digital Cholangioscopy: A Multicentric Study. Cancers. 15(19). 4827–4827. 9 indexed citations
13.
Mascarenhas, Miguel, João Afonso, Tiago Ribeiro, et al.. (2023). The Future of Minimally Invasive Capsule Panendoscopy: Robotic Precision, Wireless Imaging and AI-Driven Insights. Cancers. 15(24). 5861–5861. 8 indexed citations
14.
Mascarenhas, Miguel, João Afonso, Tiago Ribeiro, et al.. (2023). The Promise of Artificial Intelligence in Digestive Healthcare and the Bioethics Challenges It Presents. Medicina. 59(4). 790–790. 16 indexed citations
15.
Ribeiro, Tiago, Maria João Saraiva, João Afonso, et al.. (2022). PERFORMANCE OF AN ARTIFICIAL INTELLIGENCE ALGORITHM FOR THE DETECTION OF GASTROINTESTINAL ANGIOECTASIA IN DEVICE-ASSISTED ENTEROSCOPY: A PILOT STUDY. Endoscopy. 54(S 01). S183–S184. 1 indexed citations
16.
Mascarenhas, Miguel, João Afonso, Pedro Paulo de Andrade, et al.. (2022). ARTIFICIAL INTELLIGENCE AND CAPSULE ENDOSCOPY: AUTOMATIC CLASSIFICATION OF SMALL BOWEL PREPARATION USING A CONVOLUTIONAL NEURAL NETWORK. Endoscopy. 54(S 01). S90–S90.
17.
Mascarenhas, Miguel, João Afonso, Tiago Ribeiro, et al.. (2022). S599 Deep Learning and Device-Assisted Enteroscopy: Automatic Detection of Pleomorphic Gastrointestinal Lesions in Device-Assisted Enteroscopy. The American Journal of Gastroenterology. 117(10S). e421–e421. 1 indexed citations
18.
Afonso, João, Miguel Mascarenhas, João Ferreira, et al.. (2022). Automated detection of ulcers and erosions in capsule endoscopy images using a convolutional neural network. Medical & Biological Engineering & Computing. 60(3). 719–725. 24 indexed citations
19.
Fathallah, Nadia, Tiago Ribeiro, João Afonso, et al.. (2022). Artificial intelligence and high-resolution anoscopy: automatic identification of anal squamous cell carcinoma precursors using a convolutional neural network. Techniques in Coloproctology. 26(11). 893–900. 10 indexed citations
20.
Mascarenhas, Miguel, Tiago Ribeiro, João Afonso, et al.. (2021). Artificial Intelligence and Capsule Endoscopy: Automatic Detection of Small Bowel Blood Content Using a Convolutional Neural Network. GE Portuguese Journal of Gastroenterology. 29(5). 331–338. 16 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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