PhD Riku Klén - UTU Research Portal

Riku Klén
PhD

- Associate Professor,
Turku PET Centre (Independent units)

riku.klen@utu.fi

Kiinamyllynkatu 4-8

Turku

http://users.utu.fi/ripekl/

Medical imaging, imaging instrumentation, machine learning, longitudinal analysis, geometric function theory, hyperbolic type geometries, quasiconformal mappings

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Acute deep neck infection MRI: deep learning segmentation and clinical relevance of retropharyngeal edema volume (2026)
- European radiology experimental
Viertonen, Ville Sakari; Sirén, Aapo; Nyman, Mikko; Huhtanen, Heidi; Klén, Riku; Hirvonen, Jussi; Rainio, Oona
Automated long axial field of view PET image processing and kinetic modelling with the TurBO toolbox (2026)
- European Journal of Nuclear Medicine and Molecular Imaging
Tuisku, Jouni; Palonen, Santeri; Kärpijoki, Henri; Latva-Rasku, Aino; Tuomola, Nelli; Harju, Harri; Nesterov, Sergey V.; Oikonen, Vesa; Iida, Hidehiro; Teuho, Jarmo; Han, Chunlei; Karjalainen, Tomi; Kirjavainen, Anna K.; Rajader, Johan; Klén, Riku; Nuutila, Pirjo; Knuuti, Juhani; Nummenmaa, Lauri
Deep Learning for Medical Ultrasound Image Segmentation: A Systematic Review of the Current Research (2026)
- Journal of Imaging Informatics in Medicine
Rainio, Oona; Roshan, Ehsan; Hosseini, Seyed Mohammedreza; Rehman, Rida; Okenwa, Joanna; Klén, Riku
Editorial: AI with insight: explainable approaches to mental health screening and diagnostic tools in healthcare (2026)
- Frontiers in Medicine
Smrke, Urška; Klén, Riku; Mlakar, Izidor; Mulej Bratec, Satja; Levkovich, Inbar
Intranasal insulin affects brain, but not peripheral tissue, glucose uptake in lean, healthy men: a positron emission tomography study (2026)
- American Journal of Physiology : Endocrinology and Metabolism
Latva-Rasku, Aino; Laurila, Sanna; Karjalainen, Tomi; Klén, Riku; Löyttyniemi, Eliisa; Eskola, Olli; Nummenmaa, Lauri; Heni, Martin; Nuutila, Pirjo
Organ-Specific Perfusion Response to Adenosine as Measured Using Total-Body PET (2026)
- Journal of Nuclear Medicine
Kärpijoki, Henri; Tuisku, Jouni; Palonen, Santeri; Han, Chunlei; Iida, Hidehiro; Klén, Riku; Oikonen, Vesa; Teuho, Jarmo; Saraste, Antti; Nummenmaa, Lauri; Nesterov, Sergey V.; Maaniitty, Teemu; Knuuti, Juhani
Wearable-Based Emotion Recognition Using Electrocardiogram and Galvanic Skin Response and Instrumentation Audit: A Systematic Review (2026)
- IEEE Transactions on Instrumentation and Measurement
Kosal Bulbul, Ayse; Irfan, Muhammad; Jaakkola, Maria K.; Subasi, Abdulhamit; Klén, Riku
Comparison of Automatic Segmentation and Preprocessing Approaches for Dynamic Total-Body 3D Pet Images with Different Pet Tracers (2025)
- Journal of Imaging Informatics in Medicine
Jaakkola, Maria K.; Rivera Pineda, Marcela Xiomara; Diaz, Rafael; Rantala, Maria; Jalo, Anna; Karpijoki, Henri; Saari, Teemu; Maaniitty, Teemu; Keller, Thomas; Louhi, Heli; Wahlroos, Saara; Haaparanta-Solin, Merja; Solin, Olof; Hentila, Jaakko; Helin, Jatta S.; Nissinen, Tuuli A.; Eskola, Olli; Rajander, Johan; Knuuti, Juhani; Virtanen, Kirsi A.; Hannukainen, Jarna C.; Lopez-Picon, Francisco; Klen, Riku
Compartmental modeling for blood flow quantification from dynamic 15O-water PET images of humans: a systematic review (2025)
- Annals of Nuclear Medicine
Rainio, Oona; Klen, Riku
Convolutional neural networks for tumor segmentation by cancer type and imaging modality: a systematic review (2025)
- Network Modeling Analysis in Health Informatics and Bioinformatics
Rainio, Oona; Klén, Riku