Åsa Tedgren

Om mig
Publikationer
Populärvetenskap och samverkan

Om mig

- Adjungerad professor i medicinsk strålningsfysik vid institutionen för onkologi-patologi från 1 december 2025.
- Sjukhusfysiker inom strålbehandling vid Karolinska universitetssjukhuset.
- Forskningsansvarig tillsammans med Eva Onjukka.
- Professor (LiU) 2022.
- Forskning inom strålbehandling, brachyterapi, dosimetri, detektorer, stråldosplanering, kvantitativ vävnadskarakterisering med hjälp av två-energi CT (DECT).
- Handleder doktorander och examensarbeten.
- Aktiv inom European Society for Radiotherapy and Oncology (ESTRO) och American Association of Physicists in medicine (AAPM).
- Filosofie doktor 2004, Stockholms universitet.
- Sjukhusfysikerlegitimation 1999.
- Magisterexamen i medicinsk strålningsfysik 1995, Lunds universitet.

Forskningsbeskrivning

Brachyterapifysik, flertal aspekter på ämnet. Dosimetri.

Artiklar

Article: MEDICAL PHYSICS. 2026;53(4):e70404
Evaluation of a water phantom detector-applicator setup for independent experimental verification of 106Ru ocular brachytherapy applicators
Dahlander S; Andrassy M; Fromberg D; Persson L; Tedgren AC
Article: MEDICAL PHYSICS. 2026;53(4):e70381
Independent verification of vendor-issued dosimetric data for 106Ru brachytherapy using diode detectors with traceability to external beam standards for absorbed dose to water
Dahlander S; Billas I; Sander T; Bass G; Persson L; Tedgren AC
Article: RADIATION PROTECTION DOSIMETRY. 2026;202(3):195-203
Evaluating the dual-energy iterative reconstruction algorithm (DIRA) for accurate CT number determination in DECT imaging
Magnusson M; Sandborg M; Carlsson Tedgren A; Malusek A
Article: RADIATION PROTECTION DOSIMETRY. 2026;202(3):268-275
Quantitative determination of gadolinium and iodine contrast agents in dual-energy computed tomography via a dual-energy iterative reconstruction algorithm: a simulation study on multi-contrast imaging
Magnusson M; Sandborg M; Carlsson Tedgren A; Malusek A
Article: RADIATION PROTECTION DOSIMETRY. 2026;202(3):172-179
Optimizing material composition determination in dual-energy computed tomography: a comparative study of a linear model and a fully connected neural network
Malusek A; Malmodin S; Magnusson M; Sandborg M; Tedgren AC
Article: CLINICAL AND TRANSLATIONAL RADIATION ONCOLOGY. 2025;53:100991
Head and neck and skin (HNS) GEC-ESTRO and BRAPHYQS working groups joint critical review of the use of Rhenium-188 in dermato-oncology.
Lozares S; Tur P; Ballester F; Bundschuh RA; González-Pérez V; Jaberi R; Vijande J; Walter R; Tedgren ÅC; Tagliaferri L; Siebert F-A; Rembielak A
Article: PHYSICS AND IMAGING IN RADIATION ONCOLOGY. 2025;35:100801
Temporal drift in calibration of Ir-192 brachytherapy sources: A multi-center study on dosimetric discrepancies and metrological consistency.
Vijande J; Johansen JG; De Brabandere M; Hellebust TP; Herreros A; Kirisits C; van Leeuwen R; Papagiannis P; Rivard MJ; Siebert F-A; Verhaegen F; Wiersma J; Tedgren ÅC
Article: ACTA ONCOLOGICA. 2025;64:319-325
Adaptation of dose-prescription for vestibular schwannoma radiosurgery taking body contouring method and heterogeneous material into account
Fager M; Gubanski M; Tedgren AC; Benmakhlouf H
Article: MEDICAL PHYSICS. 2025;52(1):585-595
Improved heterogeneity handling in the collapsed cone dose engine for brachytherapy
Alpsten F; van Veelen B; Valdes-Cortez C; Berumen F; Ahnesjo A; Tedgren AC
Article: PHYSICS AND IMAGING IN RADIATION ONCOLOGY. 2024;32:100672
Dwell time shaping in inverse treatment planning for cervical brachytherapy
Dohlmar F; Moren B; Sandborg M; Larsson T; Tedgren AC
Article: RADIOTHERAPY AND ONCOLOGY. 2024;193:110114
GEC-ESTRO survey of 106Ru eye applicator practice for ocular melanoma - Physicist survey
De Brabandere M; Placidi E; Siebert F-A; Tedgren AC; Escarpa AS; Tagliaferri L; Andr M; Schulz C; Fog LS
Article: CLINICAL ONCOLOGY. 2023;35(8):541-547
Risk and Quality in Brachytherapy From a Technical Perspective.
Poder J; Rivard MJ; Howie A; Carlsson Tedgren Å; Haworth A
Article: MEDICAL PHYSICS. 2023;50(8):e946-e960
AAPM WGDCAB Report 372: A joint AAPM, ESTRO, ABG, and ABS report on commissioning of model-based dose calculation algorithms in brachytherapy.
Beaulieu L; Ballester F; Granero D; Tedgren ÅC; Haworth A; Lowenstein JR; Ma Y; Mourtada F; Papagiannis P; Rivard MJ; Siebert F-A; Sloboda RS; Smith RL; Thomson RM; Verhaegen F; Fonseca G; Vijande J
Article: ADVANCES IN RADIATION ONCOLOGY. 2023;8(3):101152
A Prognostic Score for the Prediction of Local Treatment Failure in Plaque Brachytherapy of Uveal Melanoma
Omar RK; Hagstrom A; Dahlander S; Tedgren AC; Stalhammar G
Article: BRACHYTHERAPY. 2023;22(3):407-415
Validation of automated post-adjustments of HDR prostate brachytherapy treatment plans by quantitative measures and oncologist observer study
Dohlmar F; Moren B; Sandborg M; Smedby O; Valdman A; Larsson T; Tedgren AC
Article: MEDICAL PHYSICS. 2023;50(2):688-693
Technical note: Evaluation of a spatial optimization model for prostate high dose-rate brachytherapy in a clinical treatment planning system
Moren B; Bokrantz R; Dohlmar F; Andersson B; Setterquist E; Larsson T; Tedgren AC
Article: MEDICAL PHYSICS. 2023;50(2):1029-1043
Dosimetric impact of a robust optimization approach to mitigate effects from rotational uncertainty in prostate intensity-modulated brachytherapy
Moren B; Antaki M; Famulari G; Morcos M; Larsson T; Enger SA; Tedgren AC
Article: RADIOTHERAPY AND ONCOLOGY. 2022;176:108-117
GEC-ESTRO ACROP recommendations on calibration and traceability of HE HDR-PDR photon-emitting brachytherapy sources at the hospital level.
Perez-Calatayud J; Ballester F; Carlsson Tedgren Å; DeWerd LA; Papagiannis P; Rivard MJ; Siebert F-A; Vijande J
Article: MEDICAL PHYSICS. 2022;49(7):4715-4730
Monte Carlo characterization of high atomic number inorganic scintillators for in vivo dosimetry in ¹⁹²Ir brachytherapy
Kaveckyte V; Jorgensen EB; Kertzscher G; Johansen JG; Carlsson Tedgren A
Article: RADIATION PROTECTION DOSIMETRY. 2021;195(3-4):212-217
ACCURACY OF CT NUMBERS OBTAINED BY DIRA AND MONOENERGETIC PLUS ALGORITHMS IN DUAL-ENERGY COMPUTED TOMOGRAPHY
Magnusson M; Sandborg M; Carlsson GA; Henriksson L; Tedgren AC; Malusek A
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Alla övriga publikationer

Review: PHYSICS IN MEDICINE AND BIOLOGY. 2025;70(14):14RM01
Roadmap: medical physics technologies in brachytherapy
Song WY; Roumeliotis M; Lee J; Fenster A; Rodgers J; Trumpour T; Glicksman RM; Berlin A; Tedgren AC; Vijande J; Beaulieu L; Moren B; Meyers S; Rink A; Gao Y; Fahimian BP; China D; Ding K; Podder TK; Carver EN; Rivard MJ; Richardson S; Grkovski M; Meftahi M; Gardner U; Kumar R; Scanderbeg D; Yashar C; El Naqa I; Viswanathan AN; Jia X
Editorial: PHYSICS AND IMAGING IN RADIATION ONCOLOGY. 2025;34:100783
Breakthroughs in modern brachytherapy are transforming cancer care.
Fröhlich G; Gomez-Iturriaga A; Eminowicz G; Bert C; Tedgren ÅC; Stewart AJ; Wisgrill B; Muren LP
Conference publication: RADIOTHERAPY AND ONCOLOGY. 2023;182:S228-S229
Intrinsic energy dependent response of inorganic scintillation detectors for in vivo dosimetry
Georgi P; Tedgren AC; Persson L; Johansen JG
Conference publication: RADIOTHERAPY AND ONCOLOGY. 2023;182:S526-S527
GEC-ESTRO Recommendations on Calibration and Traceability of HE HDR-PDR Photon Brachytherapy Sources
Perez Calatayud J; Ballester F; Tedgren AC; DeWerd LA; Papagiannis P; Rivard MJ; Siebert F; Vijande J
Conference publication: RADIOTHERAPY AND ONCOLOGY. 2022;170:S231-S232
Validation of automated adjustments of clinical prostate brachytherapy treatment plans
Dohlmar F; Tedgren AC; Sandborg M; Moren B; Larsson T
Review: PHYSICS IN MEDICINE AND BIOLOGY. 2021;66(23):23TR01
Emerging technologies in brachytherapy
Song WY; Robar JL; Moren B; Larsson T; Tedgren AC; Jia X
Conference publication: MEDICAL PHYSICS. 2021;48(6)
Brachytherapy Technology Horizon
Cai B; Jia X; Song W; Tedgren AC; Robar J
Review: MEDICAL PHYSICS. 2021;48(5):2057-2082
Optimization in treatment planning of high dose-rate brachytherapy - Review and analysis of mathematical models
Moren B; Larsson T; Tedgren AC
Conference publication: RADIOTHERAPY AND ONCOLOGY. 2021;158:S34-S35
Robust optimization to mitigate rotational uncertainty effects in intensity modulated brachytherapy
Moren B; Tedgren AC; Larsson T; Enger SA; Famulari G; Morcos M; Antaki M
Published conference paper: RADIATION PROTECTION DOSIMETRY. 2019;186(1):119-122
END-TO-END AUDIT: COMPARISON OF TLD AND LITHIUM FORMATE EPR DOSIMETRY
Adolfsson E; Wesolowska P; Izewska J; Lund E; Tedgren AC
Conference publication: RADIOTHERAPY AND ONCOLOGY. 2018;127:S924
Small field dosimetry formalism implemented using various detectors on several linear accelerators
Ghazal M; Carlsson-Tedgren A; Benmakhlouf H
Published conference paper: ANNALS OF OPERATIONS RESEARCH. 2016;236(2):319-339
Heuristics for integrated optimization of catheter positioning and dwell time distribution in prostate HDR brachytherapy
Holm A; Tedgren AC; Larsson T
Published conference paper: RADIATION PROTECTION DOSIMETRY. 2015;166(1-4):339-342
Nanodosimetry and RBE values in radiotherapy
Lindborg L; Hultqvist M; Tedgren AC; Nikjoo H
Published conference paper: PHYSICS IN MEDICINE AND BIOLOGY. 2015;60(13):5313-5323
The collapsed cone algorithm for ¹⁹²Ir dosimetry using phantom-size adaptive multiple-scatter point kernels
Tedgren AC; Plamondon M; Beaulieu L
Meeting abstract: MEDICAL PHYSICS. 2015;42(6):3708
Infrastructure and Process for Model-Based Dose Calculation Software Commissioning in Brachytherapy
Sloboda R; Ballester F; Tedgren AC; Culberson W; Esthappans J; Haworth A; Lowenstein J; Ma Y; Mourtada F; Papagiannis P; Pike T; Rivard M; Siebert F; Smite R; Spadinger I; Taylor P; Verhaegen F; Vijande J; Beaulieu L
Meeting abstract: MEDICAL PHYSICS. 2015;42(6):3707
Generation of 3D Dosimetric Reference Datasets for Commissioning and Validation of 192Ir Brachytherapy Model-Based Dose Calculation Software
Ma Y; Vijande J; Ballester F; Tedgren AC; Granero D; Haworth A; Mourtada F; Fonseca G; Zourari K; Papagiannis P; Rivard M; Siebert F; Sloboda R; Smith R; Thomson R; Verhaegen F; Beaulieu L
Meeting abstract: MEDICAL PHYSICS. 2013;40(6):480
Research and Relevance of Brachytherapy Dose Calculation Advancements
Rivard MJ; Ibbott GS; Ballester F; Tedgren AC; Mourtada F
Meeting abstract: MEDICAL PHYSICS. 2013;40(6):339
Optimizing Dosimetric Indices for HDR Brachytherapy Using CVaR
Holm A; Larsson T; Tedgren AC
Meeting abstract: MEDICAL PHYSICS. 2013;40(6):322
DICOM Test Case Plans for Model-Based Dose Calculations Methods in Brachytherapy
Papagiannis P; Ballester F; Tedgren AC; Haworth A; Ibbott G; Mourtada F; Rivard M; Siebert F; Sloboda R; Thomson R; Verhaegen F; Wareing T; Beaulieu L
Published conference paper: PHYSICS IN MEDICINE AND BIOLOGY. 2013;58(8):2561-2579
Specification of absorbed dose to water using model-based dose calculation algorithms for treatment planning in brachytherapy
Tedgren AC; Carlsson GA
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