Riku Klén
PhD
Medical imaging, imaging instrumentation, machine learning, longitudinal analysis, geometric function theory, hyperbolic type geometries, quasiconformal mappings
- Classification of head and neck cancer from PET images using convolutional neural networks (2023) Hellström Henri, Liedes Joonas, Rainio Oona, Malaspina Simona, Kemppainen Jukka, Klén Riku
- COVID-19 VACCINE PROTECTION AGAINST MORTALITY IN PATIENTS WITH OXYGEN: A MULTICONTINENTAL STUDY (2023) Huespe Ivan, Pollan Javier, Khalid Aisha, Ferraris Augusto, Blanco Antonio, Gomez-Huelgas Ricardo, Juan Miguel Anton Santos, Nunes-Cortes Jesus Millan, Lumbreras Carlos, Ramos Rincon Jose Manuel, Garcia Barrio Noelia, Casas-Rojo Jose Manuel, Ruben Valdez Pascual, Mirofsky Matias, Boietti Bruno, Klen Riku, Cayetti Luis, Rivas Ruiz Francisco, Sinner Jorge, Varela David Gomez
- COVID-19 vaccines reduce mortality in hospitalized patients with oxygen requirements: Differences between vaccine subtypes A multicontinental cohort study (2023)
- Journal of Medical Virology
Huespe Ivan A., Ferraris Augusto, Lalueza Antonio, Valdez Pascual R., Peroni Maria L., Cayetti Luis A., Mirofsky Matias A., Boietti Bruno, Gómez-Huelgas Ricardo, Casas-Rojo José M., Antón-Santos Juan M., Núñez-Cortés Jesús M., Lumbreras Carlos, Ramos-Rincón Jose-Manuel, Barrio Noelia G., Pedrera-Jiménez Miguel, Martin-Escalante María D., Ruiz Francisco R., Onieva-García María Á., Toso Carlos R., Risk Marcelo R., Klén Riku, Pollán Javier A., Gómez-Varela David
- Development and validation of COEWS (COVID-19 Early Warning Score) for hospitalized COVID-19 with laboratory features: A multicontinental retrospective study (2023) Klén Riku, Huespe Ivan A., Gregalio Felipe Anibal, Blanco Antonio Lalueza Lalueza, Jimenez MiguelPedrera, Barrio Noelia Garcia, Valdez Pascual Ruben, Mirofsky Matias A., Boietti Bruno, Gomez-Huelgas Ricardo, Casas-Rojo Jose Manuel, Anton-Santos Juan Miguel, Pollan Javier Alberto, Gomez-Varela David
- Hybridizing machine learning in survival analysis of cardiac PET/CT imaging (2023)
- Journal of Nuclear Cardiology
Juarez-Orozco Luis Eduardo, Niemi Mikael, Yeung Ming Wai, Benjamins Jan Walter, Maaniitty Teemu, Teuho Jarmo, Saraste Antti, Knuuti Juhani, van der Harst Pim, Klén Riku
- Image augmentation with conformal mappings for a convolutional neural network (2023)
- Computational and Applied Mathematics
Rainio Oona, Nasser Mohamed M. S., Vuorinen Matti, Klén Riku
- Incremental prognostic value of downstream PET perfusion imaging after coronary CT angiography (2023)
- EHJ Cardiovascular Imaging / European Heart Journal - Cardiovascular Imaging
Lehtonen Eero, Kujala Iida, Tamminen Jonne, Maaniitty Teemu, Saraste Antti, Teuho Jarmo, Knuuti Juhani, Klén Riku
- New method of using a convolutional neural network for 2D intraprostatic tumor segmentation from PET images (2023)
- Research on Biomedical Engineering
Rainio Oona, Lahti Jari, Anttinen Mikael, Ettala Otto, Seppänen Marko, Boström Peter, Kemppainen Jukka, Klén Riku
- Prognostic value of combined coronary CT angiography and myocardial perfusion imaging in women and men (2023)
- EHJ Cardiovascular Imaging / European Heart Journal - Cardiovascular Imaging
Kujala Iida, Nammas Wail, Maaniitty Teemu, Stenström Iida, Klén Riku, Bax Jeroen J, Knuuti Juhani, Saraste Antti
- Quantitative Perfusion Imaging with Total-Body PET (2023)
- Journal of Nuclear Medicine
Knuuti Juhani, Tuisku Jouni, Kärpijoki Henri, Iida Hidehiro, Maaniitty Teemu, Latva-Rasku Aino, Oikonen Vesa, Nesterov Sergey V., Teuho Jarmo, Jaakkola Maria K., Klén Riku, Louhi Heli, Saunavaara Virva, Nuutila Pirjo, Saraste Antti, Rinne Juha, Nummenmaa Lauri
- Risk factors for revision due to prosthetic joint infection following total knee arthroplasty based on 62,087 knees in the Finnish Arthroplasty Register from 2014 to 2020 (2023) Keemu Hannes, Alakylä Kasperi J., Klén Riku, Panula Valtteri J., Venäläinen Mikko S., Haapakoski Jaason J., Eskelinen Antti P., Pamilo Konsta, Kettunen Jukka S., Puhto Ari-Pekka., Vasara Anna I., Elo Laura L., Mäkelä Keijo T.
- Segmentation of Dynamic Total-Body [18F]-FDG PET Images Using Unsupervised Clustering (2023)
- International Journal of Biomedical Imaging
Jaakkola Maria K., Rantala Maria, Jalo Anna, Saari Teemu, Hentilä Jaakko, Helin Jatta S., Nissinen Tuuli A., Eskola Olli, Rajander Johan, Virtanen Kirsi A., Hannukainen Jarna C., López-Picón Francisco, Klén Riku
- Advanced pattern recognition tools for disease diagnosis (2022) 5G IoT and Edge Computing for Smart Healthcare Subasi Abdulhamit, Panigrahi Siba Smarak, Patil Bhalchandra Sunil, Canbaz Abdullah, Klén Riku
- Are Quantitative Errors Reduced with Time-of-Flight Reconstruction When Using Imperfect MR-Based Attenuation Maps for F-18-FDG PET/MR Neuroimaging? (2022) Lindén Jani, Teuho Jarmo, Klén Riku, Teräs Mika
- Artificial Intelligence to Improve Risk Prediction with Nuclear Cardiac Studies (2022)
- Current Cardiology Reports
Juarez-Orozco Luis Eduardo, Klén Riku, Niemi Mikael, Ruijsink Bram, Daquarti Gustavo, van Es Rene, Benjamins Jan-Walter, Yeung Ming Wai, van der Harst Pim, Knuuti Juhani
- Classification of ischemia from myocardial polar maps in 15 O-H 2 O cardiac perfusion imaging using a convolutional neural network (2022) Teuho Jarmo, Schultz Jussi, Klén Riku, Knuuti Juhani, Saraste Antti, Ono Naoaki, Kanaya Shigehiko
- Development and evaluation of a machine learning-based in-hospital COVID-19 disease outcome predictor (CODOP): A multicontinental retrospective study (2022) Klen Riku, Purohit Disha, Gomez-Huelgas Ricardo, Casas-Rojo Jose Manuel, Anton-Santos Juan Miguel, Nunez-Cortes Jesus Millan, Lumbreras Carlos, Ramos-Rincon Jose Manuel, Garcia Barrio Noelia, Pedrera-Jimenez Miguel, Lalueza Blanco Antonio, Martin-Escalante Maria Dolores, Rivas-Ruiz Francisco, Onieva-Garcia Maria angeles, Young Pablo, Ramirez Juan Ignacio, Titto Omonte Estela Edith, Gross Artega Rosmery, Canales Beltran Magdy Teresa, Valdez Pascual Ruben, Pugliese Florencia, Castagna Rosa, Huespe Ivan A., Boietti Bruno, Pollan Javier A., Funke Nico, Leiding Benjamin, Gomez-Varela David
- Effect of respiratory motion correction and CT-based attenuation correction on dual-gated cardiac PET image quality and quantification (2022)
- Journal of Nuclear Cardiology
Schultz Jussi, Siekkinen Reetta, Jafari Tadi Mojtaba, Teräs Mika, Klén Riku, Lehtonen Eero, Saraste Antti, Teuho Jarmo
- Evaluation of three methods for delineation and attenuation estimation of the sinus region in MR-based attenuation correction for brain PET-MR imaging (2022) Lindén Jani, Teuho Jarmo, Teräs Mika, Klén Riku
- Novel Effects of the Gastrointestinal Hormone Secretin on Cardiac Metabolism and Renal Function (2022)
- American Journal of Physiology : Endocrinology and Metabolism
Laurila Sanna, Rebelos Eleni, Lahesmaa Minna, Sun Lihua, Schnabi Katharina, Peltomaa Tia-Mari, Klén Riku, U-Din Mueez, Honka Miikka-Juhani, Eskola Olli, Kirjavainen Anna K., Nummenmaa Lauri, Klingenspor Martin, Virtanen Kirsi A., Nuutila Pirjo
