Accurate dialysis dose evaluation and extrapolation algorithms during online optical dialysis monitoringFridolin, Ivo; Karai, Deniss; Kostin, Sergei; Ubar, Raimund-JohannesIEEE transactions on biomedical engineering2013 / p. 1371-1377 : ill https://doi.org/10.1109/TBME.2012.2234458 Journal metrics at Scopus Article at Scopus Journal metrics at WOS Article at WOS

Albumin leakage during hemodialysis: A novel optical detection approachHolmar, Jana; Adoberg, Annika; Leis, Liisi; Luman, Merike; Paats, Joosep; Pilt, Kristjan; Tanner, Risto; Fridolin, IvoThe International Journal of Artificial Organs2025 / p. 439-544 https://www.esao2025.com/downloads/esao-2025-abstract-book.pdf https://doi.org/10.1177/03913988251342624

Behaviour of uremic toxins and UV absorbance in respect to low and high flux dialyzersLauri, Kai; Arund, Jürgen; Tanner, Risto; Jerotskaja, Jana; Luman, Merike; Fridolin, IvoEstonian journal of engineering2010 / 1, p. 95-106 : ill

Cannulation technique and complications in arteriovenous fistulas : a Swedish Renal Registry-based cohort studyStaaf, Karin; Fernström, Anders; Uhlin, Nils Fredrik ArneBMC Nephrology2021 / art. 256 https://doi.org/10.1186/s12882-021-02458-z Journal metrics at Scopus Article at Scopus Journal metrics at WOS Article at WOS

Cannulation with sharp or blunt needles for haemodialysis : the importance of cannulation technique for the patient's lifelineStaaf, Karin; Uhlin, Nils Fredrik ArneJournal of Vascular Access2019 / p. 161–168 : ill https://doi.org/10.1177/1129729818788811 Journal metrics at Scopus Article at Scopus Journal metrics at WOS Article at WOS

Clearance variations monitored by on-line UV-absorbance during haemodialysisUhlin, Nils Fredrik Arne; Fridolin, Ivo; Magnusson, Martin; Lindberg, L.NBC'05 UMEA : 13th Nordic Baltic Conference on Biomedical Engineering and Medical Physics : June 13th-17th, 2005, Umea, Sweden2005 / p. 174-175 : ill

Development of an optical monitoring technology for urea rebound assessmentTomson, Ruth; Fridolin, Ivo; Luman, MerikeThe 10th International Conference on Bioelectromagnetism : proceedings2015 / [4] p. : ill

Development of an optical monitoring technology for urea rebound assessmentTomson, Ruth; Fridolin, Ivo; Luman, MerikeInternational journal of bioelectromagnetism2015 / p. 52-56 : ill

Development of the model for the optical monitoring of urea in spent dialysateTomson, Ruth; Fridolin, Ivo; Uhlin, Nils Fredrik Arne; Holmar, Jana; Lauri, Kai; Luman, MerikeBEC 2012 : 2012 13th Biennial Baltic Electronics Conference : proceedings of the 13th Biennial Baltic Electronics Conference : October 3-5, 2012, Tallinn, Estonia2012 / p. 179-182 : ill

Dialysis dose and nutrition assessment by an optical method = Dialüüsravi doosi ja patsientide toitumuse hindamine optilise meetodigaLuman, Merike2010 https://www.ester.ee/record=b2599301*est

The effect of Kt/V on post dialysis urea rebound in hemodialysis and hemodiafiltrationTomson, Ruth; Fridolin, Ivo; Luman, Merike; Holmar, JanaNephrology dialysis transplantation2016 / p. i490 https://doi.org/10.1093/ndt/gfw194.3

Elimination of uremic toxins during dialysis assessed with the optical and analytical methods = Ureemiliste toksiinide elimineerimise hindamine dialüüsravil optiliste ja analüütiliste meetoditegaLauri, Kai2020 https://digikogu.taltech.ee/et/Item/85965453-b6b4-4a1c-bdb6-8ebb28420fe9 Doktoritöö aitab hinnata jooksvalt neerudialüüsi tõhusust (novaator.err.ee, 15.09.2020)

Estimating total urea removal and protein catabolic rate by monitoring UV absorbance in spent dialysateUhlin, Nils Fredrik Arne; Fridolin, Ivo; Lindberg, Lars-Göran; Magnusson, MartinNephrology dialysis transplatation2005 / 11, p. 2458-2464 https://pubmed.ncbi.nlm.nih.gov/16077147/

Estimation of dialysis patients' survival through combined approach of small molecule uremic markersHolmar, Jana; Fridolin, Ivo; Uhlin, Nils Fredrik Arne; Fernström, Anders; Luman, MerikeProceedings of the Estonian Academy of Sciences2014 / p. 227-233 : ill https://artiklid.elnet.ee/record=b2680559*est

Estimation of removed uremic toxin indoxyl sulphate during hemodialysis by using optical data of the spent dialysateHolmar, Jana; Uhlin, Nils Fredrik Arne; Ferenets, Rain; Lauri, Kai; Tanner, Risto; Arund, Jürgen; Luman, Merike; Fridolin, IvoThe 2013 35th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC) proceedings2013 / p. 6707-6710 : ill https://doi.org/10.1109/EMBC.2013.6611095 Conference Proceedings at Scopus Article at Scopus

Estimation of the influence of K/V on post dialysis urea rebound in HD and HDF with traditional and optical methodsTomson, Ruth; Fridolin, Ivo; Luman, MerikeXIII Baltic Nephrology Conference : October 13-15, 2016, Jurmala, Latvia : final programme2016 / p. 2 http://nefrologs.lv/wp-content/uploads/2016/10/XIII-BNC.pdf

Free fraction of protein-bound uremic solutes in case of different dialysis modalitiesArund, Jürgen; Tanner, Risto; Luman, Merike; Fridolin, IvoXIII Baltic Nephrology Conference : October 13-15, 2016, Jurmala, Latvia : final programme2016 / p. 17 http://nefrologs.lv/wp-content/uploads/2016/10/XIII-BNC.pdf

Hemodialysis optical monitoring toward greener technology : a potential for water saving dialysis treatmentLeis, Liisi; Adoberg, Annika; Paats, Joosep; Holmar, Jana; Arund, Jürgen; Karai, Deniss; Luman, Merike; Pilt, Kristjan; Taklaja, Paul; Tanner, Risto; Fridolin, Ivo19th Nordic-Baltic Conference on Biomedical Engineering and Medical Physics : Proceedings of NBC 2023, June 12–14, 2023, Liepaja, Latvia2023 / p. 162 - 171 https://doi.org/10.1007/978-3-031-37132-5_21 Conference Proceedings at Scopus Article at Scopus

How to needle : a mixed methods study on choice of cannulation technique for arteriovenous fistulaStaaf, Karin; Fernström, Anders; Uhlin, FredrikJournal of Clinical Nursing2023 / p. 4559 - 4573 https://doi.org/10.1111/jocn.16454 Journal metrics at Scopus Article at Scopus Journal metrics at WOS Article at WOS

Icke-invasiv kontinuerlig öövervakning av bloddialys - UV-absorptionUhlin, Nils Fredrik Arne; Fridolin, IvoNjurmedicinskt regionmöte2004 / [1] p https://liu.diva-portal.org/smash/record.jsf?faces-redirect=true&aq2=%5B%5B%5D%5D&af=%5B%5D&searchType=SIMPLE&sortOrder2=title_sort_asc&query=&language=sv&pid=diva2%3A249542&aq=%5B%5B%5D%5D&sf=all&aqe=%5B%5D&sortOrder=author_sort_asc&onlyFullText=false&noOfRows=50&dswid=475

Interrelationship between protein bound uremic toxin indoxyl sulfate oncentration in blood and spent dialysate during hemodialysis treatment : [abstract]Paats, Joosep; Adoberg, Annika; Arund, Jürgen; Fridolin, Ivo; Lauri, Kai; Leis, Liisi; Pilt, Kristjan; Tanner, Risto; Luman, MerikeNephrology dialysis transplantation2021 / p. 382 : ill https://doi.org/10.1093/ndt/gfab099.005

Intradialytic on-line multicomponent total removed solute monitoring in spent dialysate by a novel miniaturized optical sensorAdoberg, Annika; Paats, Joosep; Arund, Jürgen; Leis, Liisi; Pilt, Kristjan; Fridolin, Ivo; Luman, MerikeNephrology Dialysis Transplantation2021 https://doi.org/10.1093/ndt/gfaa141.TO015

Intradialytic on-line multicomponent total removed solute monitoring in spent dialysate by a novel miniaturized optical sensorAdoberg, Annika; Paats, Joosep; Arund, Jürgen; Leis, Liisi; Pilt, Kristjan; Fridolin, Ivo; Luman, MerikeNephrology Dialysis Transplantation2020 / gfaa141.TO015 https://doi.org/10.1093/ndt/gfaa141.TO015

Intradialytic optical assessment of C-mannosyl tryptophan removal using spent dialysatePaats, Joosep; Adoberg, Annika; Leis, Liisi; Arund, Jürgen; Lauri, Kai; Luman, Merike; Tanner, Risto; Holmar, Jana; Pilt, Kristjan; Fridolin, IvoScientific reports2025 / art. 20052, 12 p. : ill https://doi.org/10.1038/s41598-025-01844-z

Jana Holmar: neerupuudulikkusele tuleks rohkem tähelepanu pöörataHolmar, Janaforte.delfi.ee2025 https://forte.delfi.ee/artikkel/120383486/tunne-teadlast-jana-holmar-neerupuudulikkusele-tuleks-rohkem-tahelepanu-poorata

Lean body mass assessment based on UV absorbance in spent dialysate and dual-energy x-ray absorptiometryTomson, Ruth; Fridolin, Ivo; Luman, MerikeInternational journal of artificial organs2015 / p. 311-315 : ill https://doi.org/10.5301/ijao.5000415 Journal metrics at Scopus Article at Scopus Journal metrics at WOS Article at WOS

Lean body mass assessment based on UV-absorbance in spent dialysateTomson, Ruth; Fridolin, Ivo; Luman, MerikeBEC 2014 : 2014 14th Biennial Baltic Electronics Conference : proceedings of the 14th Biennial Baltic Electronics Conference : Tallinn University of Technology, October 6-8, 2014, Tallinn, Estonia2014 / p. 185-188 : ill

Life in standby : hemodialysis patients' experiences of waiting for kidney transplantationYngman-Uhlin, Pia; Fogelberg, Annika; Uhlin, FredrikJournal of Clinical Nursing2016 / p. 92 - 98 https://doi.org/10.1111/jocn.12994 Journal metrics at Scopus Article at Scopus Journal metrics at WOS Article at WOS

Non-invasive determination of uric acid in blood during hemodialysis with an optical spent dialysate sensorPaats, Joosep; Arund, Jürgen; Adoberg, Annika; Holmar, Jana; Leis, Liisi; Luman, Merike; Pilt, Kristjan; Tanner, Risto; Fridolin, Ivo61st ERA Congress, 23-26 May 2024: Congress Abstracts2024 / p. i1236 https://doi.org/10.1093/ndt/gfae069.754

Non-invasive optical estimation of intradialytic concentrations of uremic toxins in blood of hemodialysis patientsPaats, Joosep; Adoberg, Annika; Arund, Jürgen; Fridolin, Ivo; Holmar, Jana; Lauri, Kai; Leis, Liisi; Pilt, Kristjan; Tanner, Risto; Luman, MerikeNephrology Dialysis Transplantation2023 / art. #3367, p. i149-i150 : ill https://doi.org/10.1093/ndt/gfad063b_3367

Novel spent dialysate based optical methods: towards more universal dose quantification of haemodialysis = Uudsed dialüsaadipõhised optilised meetodid universaalsema hemodialüüsravi doosi määramiseksPaats, Joosep2025 https://www.ester.ee/record=b5753842*est https://digikogu.taltech.ee/et/Item/f2808205-001d-45c0-93b9-725b09a49f95 https://doi.org/10.23658/taltech.49/2025

On-line monitoring of the spent dialysate during haemodialysis using UV-absorbanceUhlin, Nils Fredrik Arne; Fridolin, IvoProceedings of the 34th International Conference of EDTNA/ERCA : Wien, Austria, 2005. 12005 / p. 46

Online urea concentration estimation from spent dialysate using optical sensorPilt, Kristjan; Arund, Jürgen; Adoberg, Annika; Leis, Liisi; Luman, Merike; Fridolin, IvoXV Mediterranean Conference on Medical and Biological Engineering and Computing - MEDICON 2019 : proceedings of MEDICON 2019, September 26–28, 2019, Coimbra, Portugal2020 / p. 1459-1464 https://doi.org/10.1007/978-3-030-31635-8_180 Conference proceedings at Scopus Article at Scopus Article at WOS

Online uric acid concentration estimation in blood from spent dialysate measurements using an optical sensorPaats, Joosep; Arund, Jürgen; Pilt, Kristjan; Adoberg, Annika; Leis, Liisi; Luman, Merike; Holmar, Jana; Tanner, Risto; Fridolin, Ivo9th European Medical and Biological Engineering Conference : Proceedings of EMBEC 2024 ; Volume 22024 / p. 178 - 187 https://doi.org/10.1007/978-3-031-61628-0_20 Conference Proceedings at Scopus Article at Scopus Article at WOS

Optical assessment of calcification markers phosphorus and calcium during hemodialysisHolmar, Jana; Uhlin, Nils Fredrik Arne; Fernström, Anders; Luman, Merike; Jankowski, Joachim; Fridolin, IvoNephrology Dialysis Transplantation2015 / iii556 https://doi.org/10.1093/ndt/gfv197.03

Optical Estimation of Beta 2 Microglobulin during Hemodiafiltration - Does It Work?Uhlin, Nils Fredrik Arne; Holmar, Jana; Yngman-Uhlin, Pia; Fernström, Anders; Fridolin, IvoBlood Purification2015 / p. 113-119 https://doi.org/10.1159/000381797 Journal metrics at Scopus Article at Scopus Journal metrics at WOS Article at WOS

Optical measurement of 4-pyridoxic acid in the spent dialysate : algorithm developmentKalle, Sigrid; Tanner, Risto; Arund, Jürgen; Tomson, Ruth; Fridolin, IvoBEC 2016 : 2016 15th Biennial Baltic Electronics Conference : proceedings of the 15th Biennial Baltic Electronics Conference : Tallinn University of Technology, October 3-5, 2016, Tallinn, Estonia2016 / p. 115-118 : ill http://www.ester.ee/record=b2150914*est

Optical measurement of creatinine in spent dialysateTomson, Ruth; Fridolin, Ivo; Uhlin, Nils Fredrik Arne; Holmar, Jana; Lauri, Kai; Luman, MerikeClinical nephrology2013 / p. 107-117 : ill https://doi.org/10.5414/CN107338 Journal metrics at Scopus Article at Scopus Journal metrics at WOS Article at WOS

Optical method and biochemical source for the assessment of the middle-molecule uremic toxin β2-microglobulin in spent dialysatePaats, Joosep; Adoberg, Annika; Arund, Jürgen; Fridolin, Ivo; Lauri, Kai; Leis, Liisi; Luman, Merike; Tanner, RistoToxins2021 / art. 255, 15 p. : ill https://doi.org/10.3390/toxins13040255 Journal metrics at Scopus Article at Scopus Journal metrics at WOS Article at WOS

Optical method for cardiovascular risk marker uric acid removal assessment during dialysisHolmar, Jana; Fridolin, Ivo; Uhlin, Nils Fredrik Arne; Lauri, Kai; Luman, MerikeThe scientific world journal2012 / p. 1-8 : ill https://pubmed.ncbi.nlm.nih.gov/22701094/

Optical method for uric acid removal assessment during dialysis = Optiline meetod kusihappe eemaldamise määramiseks dialüüsiravi käigusHolmar, Jana2013 https://www.ester.ee/record=b3004743*est

Optical online monitoring of uremic toxins beyond ureaUhlin, Nils Fredrik ArneUpdates on Hemodialysis2023 https://doi.org/10.5772/intechopen.110080

Optical real-time cardiorenal toxin uric acid measurement during hemodialysis using a miniaturized optical sensorHolmar, Jana; Arund, Jürgen; Adoberg, Annika; Leis, Liisi; Luman, Merike; Paats, Joosep; Pilt, Kristjan; Tanner, Risto; Fridolin, IvoProceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS20232023 / 4 p. : ill https://doi.org/10.1109/EMBC40787.2023.10340379 Conference proceedings at Scopus Article at Scopus Article at WOS

Optical urea rebound estimation during dialysisTomson, Ruth; Uhlin, Nils Fredrik Arne; Fridolin, Ivo16th Nordic-Baltic Conference on Biomedical Engineering : 16. NBC & 10. MTD 2014 Joint Conferences, October 14-16, 2014, Gothenburg, Sweden2015 / p. 109-112 : ill https://doi.org/10.1007/978-3-319-12967-9_30 Conference proceedings at Scopus Article at Scopus Article at WOS

Paracetamol interferes uric acid levels in uraemic patients revealed by monitoring spent dialysateTanner, Risto; Arund, Jürgen; Fridolin, Ivo; Luman, MerikeISRN nephrology2013 / p. 1-4 : ill

Photon propagation in tissue and in biological fluids applied for vascular imaging and haemodialysis monitoringFridolin, Ivo2009 https://www.ester.ee/record=b2637490*est

Photon propagation in tissue and in biological fluids applied for vascular imaging and haemodialysis monitoringFridolin, Ivo2003 https://www.ester.ee/record=b1908470*est

Quantitative assessment of lean skeletal muscle hydration using water-fat MRIRomu, Thobias; Tunon, Patrik; Uhlin, Nils Fredrik ArneRadiological Society of North America 2016 Scientific Assembly and Annual Meeting : November 27 - December 2, 2016, Chicago IL2016 / [1] p http://archive.rsna.org/2016/16044450.html

Reduction of urea and indoxyl sulphate concentration during different dialysis treatment modalitiesHolmar, Jana; Luman, Merike; Arund, Jürgen; Lauri, Kai; Tomson, Ruth; Tanner, Risto; Kalle, Sigrid; Fridolin, IvoInternational journal of artificial organs2016 / p. 379 http://dx.doi.org/10.5301/ijao.5000508

Removal estimation of uremic CVD marker phosphate in dialysis using spectrophoto- and fluorimetrical signalsHolmar, Jana; Arund, Jürgen; Kalle, Sigrid; Lauri, Kai; Luman, Merike; Tanner, Risto; Tomson, Ruth; Fridolin, IvoEMBEC & NBC 2017 : joint conference of the European Medical and Biological Engineering Conference (EMBEC) and the Nordic-Baltic Conference on Biomedical Engineering and Medical Physics (NBC), Tampere, Finland, June 20172018 / p. 358-361 : ill https://doi.org/10.1007/978-981-10-5122-7_90 Conference proceedings at Scopus Article at Scopus Article at WOS

Removal of phosphate as the trigger of vascular calcification by different dialysis treatment modalitiesHolmar, Jana; Jankowski, Joachim; Fridolin, Ivo; Alampour-Rajabi, Setareh; Luman, MerikeNephrology dialysis transplantation2018 / p. i224 : ill https://doi.org/10.1093/ndt/gfy104.FP548

Solute removal rate assessment during hemodialysis using a spectrophotometrical technique : a theoretical study of component interaction [Electronic resource]Fridolin, IvoMedicon and Health Telematics 2004 "Health in the Information Society" : Xth Mediterranean Conference on Medical and Biological Engineering : July 31 - August 5, 2004, Ischia, Napeles-Italy2004 / [4] p. : ill. [CD-ROM]

Treatment with paracetamol can interfere with the intradialytic optical estimation in spent dialysate of uric acid but not of indoxyl sulfateAdoberg, Annika; Paats, Joosep; Arund, Jürgen; Dhondt, Annemieke; Fridolin, Ivo; Glorieux, Griet; Holmar, Jana; Lauri, Kai; Leis, Liisi; Luman, Merike; Pilt, Kristjan; Uhlin, Nils Fredrik Arne; Tanner, RistoToxins2022 / art. 610 https://doi.org/10.3390/toxins14090610 Journal metrics at Scopus Article at Scopus Journal metrics at WOS Article at WOS

Urea- and creatinine-based parameters in the optical monitoring of dialysis : the case of lean body mass and urea rebound assessment = Uureal ja kreatiniinil põhinevad parameetrid neeruasendusravi optilises monitooringus : patsiendi lihasmassi ja uurea tagasilöögi efekti hindamineTomson, Ruth2017 https://digi.lib.ttu.ee/i/?7744 https://www.ester.ee/record=b4678405~S1*est

Urea rebound assessment based on UV absorbance in spent dialysateTomson, Ruth; Uhlin, Fredrik; Fridolin, IvoAsaio journal2014 / p. 459-465 : ill https://doi.org/10.1097/MAT.0000000000000091 Journal metrics at Scopus Article at Scopus Journal metrics at WOS Article at WOS

Vasoactive peptide levels after change of dialysis modeUhlin, Nils Fredrik Arne; Odar-Cederlöf, Ingegerd; Theodorsson, Elvar; Fernström, AndersNephron Extra2015 / p. 67 - 78 https://doi.org/10.1159/000440816 Journal metrics at Scopus Article at Scopus