Publications 2024

Chen ZJ, Li XA, Brenner DJ, Hellebust TP, Hoskin P, Joiner MC, Kirisits C, Nath R, Rivard MJ, Thomadsen BR, Zaider M (2024)
AAPM Task Group Report 267: A joint AAPM GEC-ESTRO report on biophysical models and tools for the planning and evaluation of brachytherapy
Med Phys, 51 (6), 3850-3923
DOI 10.1002/mp.17062, PubMed 38721942

Gullhaug A, Haakensen VD, De Ruysscher D, Simone CB, Hotca-Cho AE, Chhabra AM, Hellebust TP, Paulsen EE, Dimopoulos MP, Johansen S (2024)
Lung cancer reirradiation: Exploring modifications to utilization, treatment modalities and factors associated with outcomes
J Med Imaging Radiat Sci, 55 (2), 221-231
DOI 10.1016/j.jmir.2024.02.004, PubMed 38429174

Huynh TM, Falk RS, Hellebust TP, Dale E, Astrup GL, Hjermstad MJ, Malinen E, Bjordal K, Kiserud CE, Herlofson BB, Nome R, Amdal CD (2024)
Chronic fatigue in long-term survivors of head and neck cancer treated with radiotherapy
Radiother Oncol, 195, 110231
DOI 10.1016/j.radonc.2024.110231, PubMed 38518958

Johansen JG, Jürgenliemk-Schulz IM, Haddad H, Hannoun-Levi JM, Hellebust TP, Guix B, Loessl K, Pieters B, Rao C, Strnad V, Sturdza AE, Tagliaferri L, Takacsi-Nagy Z, Villafranca E, Wojcieszek P, Rembielak A, Niehoff P (2024)
The current status of brachytherapy in Europe - A GEC-ESTRO Brachy-HERO survey
Clin Transl Radiat Oncol, 50, 100883
DOI 10.1016/j.ctro.2024.100883, PubMed 39584018

Os SS, Skipar K, Skovlund E, Hompland I, Hellebust TP, Guren MG, Lindemann K, Nakken ES (2024)
Survival prediction in patients with gynecological cancer irradiated for brain metastases
Acta Oncol, 63, 206-212
DOI 10.2340/1651-226X.2023.34899, PubMed 38647023

Skipar K, Hompland T, Lund KV, Lindemann K, Hellebust TP, Bruheim K, Lyng H (2024)
MRI-guided dynamic risk assessment in cervical cancer based on tumor hypoxia at diagnosis and volume response at brachytherapy
Radiother Oncol, 195, 110263
DOI 10.1016/j.radonc.2024.110263, PubMed 38556173

Stewart AJ, Chargari C, Chyrek A, Eckert F, Guinot JL, Hellebust TP, Hoskin P, Kirisits C, Pieters B, Siebert FA, Tagliaferri L, Tanderup K, Todor D, Wojcieszek P, Hannoun-Levi JM (2024)
Radiobiology and modelling in Brachytherapy: A review inspired by the ESTRO Brachytherapy pre-meeting course
Clin Transl Radiat Oncol, 50, 100885
DOI 10.1016/j.ctro.2024.100885, PubMed 39670056

Publications 2023

Heggebø LC, Borgen IMH, Rylander H, Kiserud C, Nordenmark TH, Hellebust TP, Evensen ME, Gustavsson M, Ramberg C, Sprauten M, Magelssen H, Blakstad H, Moorthy J, Andersson K, Raunert I, Henry T, Moe C, Granlund C, Goplen D, Brekke J, Johannessen TA, Solheim TS, Marienhagen K, Humberset Ø, Bergström P et al. (2023)
Investigating survival, quality of life and cognition in PROton versus photon therapy for IDH-mutated diffuse grade 2 and 3 GLIOmas (PRO-GLIO): a randomised controlled trial in Norway and Sweden
BMJ Open, 13 (3), e070071
DOI 10.1136/bmjopen-2022-070071, PubMed 36940951

Huynh TM, Dale E, Falk RS, Hellebust TP, Astrup GL, Malinen E, Edin NFJ, Bjordal K, Herlofson BB, Kiserud CE, Helland Å, Amdal CD (2023)
Radiation-induced long-term dysphagia in survivors of head and neck cancer and association with dose-volume parameters
Radiother Oncol, 190, 110044
DOI 10.1016/j.radonc.2023.110044, PubMed 38061420

Publications 2022

Huynh TTM, Aass HCD, Falk RS, Astrup GL, Helland Å, Bjøro T, Bjordal K, Dale E, Hellebust TP, Herlofson BB, Malinen E, Kiserud CE, Osnes T, Amdal CD (2022)
Associations between patient-reported late effects and systemic cytokines in long-term survivors of head and neck cancer treated with radiotherapy
J Cancer Surviv, 17 (4), 1082-1093
DOI 10.1007/s11764-022-01273-1, PubMed 36350483

Ryg U, Seierstad T, Nilsen LB, Hellebust TP, Djupvik LH, Gustafson H, Hydal J, Kishan AU, Hole KH, Lilleby W (2022)
A Prospective Study of High Dose-Rate Brachytherapy or Stereotactic Body Radiotherapy of Intra-Prostatic Recurrence: Toxicity and Long Term Clinical Outcome
Front Oncol, 12, 861127
DOI 10.3389/fonc.2022.861127, PubMed 35463376

Svestad JG, Heydari M, Mikalsen SG, Flote VG, Nordby F, Hellebust TP (2022)
Surface-guided positioning eliminates the need for skin markers in radiotherapy of right sided breast cancer: A single center randomized crossover trial
Radiother Oncol, 177, 46-52
DOI 10.1016/j.radonc.2022.10.017, PubMed 36309152

Westerveld H, Kirchheiner K, Nout RA, Tanderup K, Lindegaard JC, Spampinato S, Sturdza A, Nesvacil N, Bruheim K, Hellebust TP, Pieters BR, Kirisits C, Jürgenliemk-Schulz IM, Pötter R, de Leeuw AAC (2022)
Dose-effect relationship between vaginal dose points and vaginal stenosis in cervical cancer: An EMBRACE-I sub-study
Radiother Oncol, 168, 8-15
DOI 10.1016/j.radonc.2021.12.034, PubMed 35063582

Publications 2021

Karlsson AT, Hjermstad MJ, Omdahl T, Aass N, Skovlund E, Hellebust TP, Johansen S, Kaasa S, Yri OE (2021)
Overall survival after initial radiotherapy for brain metastases; a population based study of 2140 patients with non-small cell lung cancer
Acta Oncol, 60 (8), 1054-1060
DOI 10.1080/0284186X.2021.1924399, PubMed 34032536

Publications 2020

Bell L, Holloway L, Bruheim K, Petrič P, Kirisits C, Tanderup K, Pötter R, Vinod S, Lim K, Pogson E, Metcalfe P, Hellebust TP (2020)
Dose planning variations related to delineation variations in MRI-guided brachytherapy for locally advanced cervical cancer
Brachytherapy, 19 (2), 146-153
DOI 10.1016/j.brachy.2020.01.002, PubMed 32067884

Brandal P, Bergfeldt K, Aggerholm-Pedersen N, Bäckström G, Kerna I, Gubanski M, Björnlinger K, Evensen ME, Kuddu M, Pettersson E, Brydøy M, Hellebust TP, Dale E, Valdman A, Weber L, Høyer M (2020)
A Nordic-Baltic perspective on indications for proton therapy with strategies for identification of proper patients
Acta Oncol, 59 (10), 1157-1163
DOI 10.1080/0284186X.2020.1817977, PubMed 32902341

Sande EPS, Acosta Roa AM, Hellebust TP (2020)
Dose deviations induced by respiratory motion for radiotherapy of lung tumors: Impact of CT reconstruction, plan complexity, and fraction size
J Appl Clin Med Phys, 21 (4), 68-79
DOI 10.1002/acm2.12847, PubMed 32166850

Serban M, Kirisits C, de Leeuw A, Pötter R, Jürgenliemk-Schulz I, Nesvacil N, Swamidas J, Hudej R, Lowe G, Hellebust TP, Menon G, Oinam A, Bownes P, Oosterveld B, De Brabandere M, Koedooder K, Langeland Marthinsen AB, Whitney D, Lindegaard J, Tanderup K, EMBRACE Collaborative Group (2020)
Ring Versus Ovoids and Intracavitary Versus Intracavitary-Interstitial Applicators in Cervical Cancer Brachytherapy: Results From the EMBRACE I Study
Int J Radiat Oncol Biol Phys, 106 (5), 1052-1062
DOI 10.1016/j.ijrobp.2019.12.019, PubMed 32007365

Siebert FA, Kirisits C, Hellebust TP, Baltas D, Verhaegen F, Camps S, Pieters B, Kovács G, Thomadsen B (2020)
GEC-ESTRO/ACROP recommendations for quality assurance of ultrasound imaging in brachytherapy
Radiother Oncol, 148, 51-56
DOI 10.1016/j.radonc.2020.02.024, PubMed 32335363

Tan LT, Tanderup K, Kirisits C, Mahantshetty U, Swamidas J, Jürgenliemk-Schulz I, Lindegaard J, de Leeuw A, Nesvacil N, Assenholt M, Berger D, Diendorfer T, Dimopoulos J, Duke S, Ecker S, Fokdal L, Hellebust T, Jensen N, Kirchheiner K, Nout R, Petric P, Schmid M, Seppenwoolde Y, Sturdza A, Van Limbergen E et al. (2020)
Education and training for image-guided adaptive brachytherapy for cervix cancer-The (GEC)-ESTRO/EMBRACE perspective
Brachytherapy, 19 (6), 827-836
DOI 10.1016/j.brachy.2020.06.012, PubMed 32811761

Publications 2019

Berger T, Seppenwoolde Y, Pötter R, Assenholt MS, Lindegaard JC, Nout RA, de Leeuw A, Jürgenliemk-Schulz I, Tan LT, Georg D, Kirisits C, Dumas I, Nesvacil N, Swamidas J, Hudej R, Lowe G, Hellebust TP, Menon G, Fokdal L, Tanderup K, EMBRACE Collaborative Group (2019)
Importance of Technique, Target Selection, Contouring, Dose Prescription, and Dose-Planning in External Beam Radiation Therapy for Cervical Cancer: Evolution of Practice From EMBRACE-I to II
Int J Radiat Oncol Biol Phys, 104 (4), 885-894
DOI 10.1016/j.ijrobp.2019.03.020, PubMed 30904706

Swamidas J, Kirisits C, De Brabandere M, Hellebust TP, Siebert FA, Tanderup K (2019)
Image registration, contour propagation and dose accumulation of external beam and brachytherapy in gynecological radiotherapy
Radiother Oncol, 143, 1-11
DOI 10.1016/j.radonc.2019.08.023, PubMed 31564555

Publications 2018

Hellebust TP (2018)
Place of modern imaging in brachytherapy planning
Cancer Radiother, 22 (4), 326-333
DOI 10.1016/j.canrad.2018.03.005, PubMed 29858136

Serban M, Kirisits C, Pötter R, de Leeuw A, Nkiwane K, Dumas I, Nesvacil N, Swamidas J, Hudej R, Lowe G, Hellebust TP, Menon G, Oinam A, Bownes P, Oosterveld B, De Brabandere M, Koedooder K, Marthinsen ABL, Lindegaard J, Tanderup K, EMBRACE Collaborative Group (2018)
Isodose surface volumes in cervix cancer brachytherapy: Change of practice from standard (Point A) to individualized image guided adaptive (EMBRACE I) brachytherapy
Radiother Oncol, 129 (3), 567-574
DOI 10.1016/j.radonc.2018.09.002, PubMed 30243671

Wedde TB, Småstuen MC, Brabrand S, Fosså SD, Kaasa S, Tafjord G, Russnes KM, Hellebust TP, Lilleby W (2018)
Ten-year survival after High-Dose-Rate Brachytherapy combined with External Beam Radiation Therapy in high-risk prostate cancer: A comparison with the Norwegian SPCG-7 cohort
Radiother Oncol, 132, 211-217
DOI 10.1016/j.radonc.2018.10.013, PubMed 30389241

Publications 2017

Arnesen MR, Hellebust TP, Malinen E (2017)
Impact of dose escalation and adaptive radiotherapy for cervical cancers on tumour shrinkage-a modelling study
Phys Med Biol, 62 (6), N107-N119
DOI 10.1088/1361-6560/aa5de2, PubMed 28151724

Li AN, Andersen E, Lervag C, Julin CH, Lyng H, Hellebust TP, Malinen E (2017)
Dynamic contrast enhanced magnetic resonance imaging for hypoxia mapping and potential for brachytherapy targeting
Phys. Imag. Radiat. Oncol., 2, 1-6
DOI 10.1016/j.phro.2017.03.002

Rusten E, Rekstad BL, Undseth C, Al-Haidari G, Hanekamp B, Hernes E, Hellebust TP, Malinen E, Guren MG (2017)
Target volume delineation of anal cancer based on magnetic resonance imaging or positron emission tomography
Radiat Oncol, 12 (1), 147
DOI 10.1186/s13014-017-0883-z, PubMed 28874205

Publications 2016

Arnesen MR, Rekstad BL, Stokke C, Bruheim K, Løndalen AM, Hellebust TP, Malinen E (2016)
Short-course PET based simultaneous integrated boost for locally advanced cervical cancer
Radiat Oncol, 11, 39
DOI 10.1186/s13014-016-0612-z, PubMed 26968827

Publications 2015

Arnesen MR, Knudtsen IS, Rekstad BL, Eilertsen K, Dale E, Bruheim K, Helland Å, Løndalen AM, Hellebust TP, Malinen E (2015)
Dose painting by numbers in a standard treatment planning system using inverted dose prescription maps
Acta Oncol, 54 (9), 1607-13
DOI 10.3109/0284186X.2015.1061690, PubMed 26213311

Publications 2014

Arnesen MR, Bruheim K, Malinen E, Hellebust TP (2014)
Spatial dosimetric sensitivity of contouring uncertainties in gynecological 3D-based brachytherapy
Radiother Oncol, 113 (3), 414-9
DOI 10.1016/j.radonc.2014.11.016, PubMed 25434766

Carlsson Tedgren A, Bjerke H, Grindborg JE, Hetland PO, Kosunen A, Hellebust TP, Persson L, Sipila P (2014)
Comparison of high-dose-rate (192)Ir source strength measurements using equipment with traceability to different standards
Brachytherapy, 13 (4), 420-3
DOI 10.1016/j.brachy.2014.01.002, PubMed 24530343

Publications 2013

Hellebust TP, Heikkilä IE, Frykholm G, Levernes S, Johannessen DC, Bjerke H, Olerud H (2013)
Quality assurance in radiotherapy on a national level; experience from Norway: the KVIST initiative
J Radiother Pract, 13 (1), 35-44
DOI 10.1017/S1460396912000544, PubMed 24611030

Hellebust TP, Tanderup K, Lervåg C, Fidarova E, Berger D, Malinen E, Pötter R, Petrič P (2013)
Dosimetric impact of interobserver variability in MRI-based delineation for cervical cancer brachytherapy
Radiother Oncol, 107 (1), 13-9
DOI 10.1016/j.radonc.2012.12.017, PubMed 23462706

Kirisits C, Rivard MJ, Baltas D, Ballester F, De Brabandere M, van der Laarse R, Niatsetski Y, Papagiannis P, Hellebust TP, Perez-Calatayud J, Tanderup K, Venselaar JL, Siebert FA (2013)
Review of clinical brachytherapy uncertainties: analysis guidelines of GEC-ESTRO and the AAPM
Radiother Oncol, 110 (1), 199-212
DOI 10.1016/j.radonc.2013.11.002, PubMed 24299968

Nesvacil N, Tanderup K, Hellebust TP, De Leeuw A, Lang S, Mohamed S, Jamema SV, Anderson C, Pötter R, Kirisits C (2013)
A multicentre comparison of the dosimetric impact of inter- and intra-fractional anatomical variations in fractionated cervix cancer brachytherapy
Radiother Oncol, 107 (1), 20-5
DOI 10.1016/j.radonc.2013.01.012, PubMed 23602372

Onsrud M, Cvancarova M, Hellebust TP, Tropé CG, Kristensen GB, Lindemann K (2013)
Long-term outcomes after pelvic radiation for early-stage endometrial cancer
J Clin Oncol, 31 (31), 3951-6
DOI 10.1200/JCO.2013.48.8023, PubMed 24019546

Petrič P, Hudej R, Rogelj P, Blas M, Tanderup K, Fidarova E, Kirisits C, Berger D, Dimopoulos JC, Pötter R, Hellebust TP (2013)
Uncertainties of target volume delineation in MRI guided adaptive brachytherapy of cervix cancer: a multi-institutional study
Radiother Oncol, 107 (1), 6-12
DOI 10.1016/j.radonc.2013.01.014, PubMed 23453539

Publications 2012

Siebert FA, Venselaar JLM, Hellebust TP, Papagiannis P, Rijnders A, Rivard MJ, GEC-ESTRO Working Grp BRAPHYQS (2012)
Dose-rate to water calibrations for brachytherapy sources from the end-user perspective
Metrologia, 49 (5), S249-S252
DOI 10.1088/0026-1394/49/5/S249

Publications 2010

Guedea F, Venselaar J, Hoskin P, Hellebust TP, Peiffert D, Londres B, Ventura M, Mazeron JJ, Limbergen EV, Pötter R, Kovacs G (2010)
Patterns of care for brachytherapy in Europe: updated results
Radiother Oncol, 97 (3), 514-20
DOI 10.1016/j.radonc.2010.09.009, PubMed 20950878

Hellebust TP, Kirisits C, Berger D, Pérez-Calatayud J, De Brabandere M, De Leeuw A, Dumas I, Hudej R, Lowe G, Wills R, Tanderup K, Gynaecological (GYN) GEC-ESTRO Working Group (2010)
Recommendations from Gynaecological (GYN) GEC-ESTRO Working Group: considerations and pitfalls in commissioning and applicator reconstruction in 3D image-based treatment planning of cervix cancer brachytherapy
Radiother Oncol, 96 (2), 153-60
DOI 10.1016/j.radonc.2010.06.004, PubMed 20663578

Publications 2009

Hellebust TP (2009)
Severe late complications after radiotherapy for advancedcervical cancer with special emphasis on brachytherapy
In Series of dissertations submitted to the Faculty of Mathematics and Natural Sciences, University of Oslo, The Faculty, Oslo, nr. 848, 1 b. (flere pag.)
BIBSYS 092381464

Hellebust TP, Kristensen GB, Olsen DR (2009)
Late effects after radiotherapy for locally advanced cervical cancer: comparison of two brachytherapy schedules and effect of dose delivered weekly
Int J Radiat Oncol Biol Phys, 76 (3), 713-8
DOI 10.1016/j.ijrobp.2009.02.024, PubMed 19427739

Publications 2008

Tanderup K, Hellebust TP, Lang S, Granfeldt J, Pötter R, Lindegaard JC, Kirisits C (2008)
Consequences of random and systematic reconstruction uncertainties in 3D image based brachytherapy in cervical cancer
Radiother Oncol, 89 (2), 156-63
DOI 10.1016/j.radonc.2008.06.010, PubMed 18692265

Publications 2007

Hellebust TP, Tanderup K, Bergstrand ES, Knutsen BH, Røislien J, Olsen DR (2007)
Reconstruction of a ring applicator using CT imaging: impact of the reconstruction method and applicator orientation
Phys Med Biol, 52 (16), 4893-904
DOI 10.1088/0031-9155/52/16/012, PubMed 17671342

Kirisits C, Siebert FA, Baltas D, De Brabandere M, Hellebust TP, Berger D, Venselaar J (2007)
Accuracy of volume and DVH parameters determined with different brachytherapy treatment planning systems
Radiother Oncol, 84 (3), 290-7
DOI 10.1016/j.radonc.2007.06.010, PubMed 17698231

Publications 2006

Tanderup K, Hellebust TP, Honoré HB, Nielsen SK, Olsen DR, Grau C, Lindegaard JC (2006)
Dose optimisation in single plane interstitial brachytherapy
Radiother Oncol, 81 (1), 105-11
DOI 10.1016/j.radonc.2006.08.021, PubMed 17005279

Publications 2005

Dale E, Hellebust TP, Bruland ØS, Olsen DR (2005)
Comparative analyses of the dynamic properties of the bladder wall studied by repetitive pelvic CT scans of patients and cryo-sections of cadavers
Br J Radiol, 78 (930), 528-32
DOI 10.1259/bjr/82990907, PubMed 15900058

Haie-Meder C, Pötter R, Van Limbergen E, Briot E, De Brabandere M, Dimopoulos J, Dumas I, Hellebust TP, Kirisits C, Lang S, Muschitz S, Nevinson J, Nulens A, Petrow P, Wachter-Gerstner N, Gynaecological (GYN) GEC-ESTRO Working Group (2005)
Recommendations from Gynaecological (GYN) GEC-ESTRO Working Group (I): concepts and terms in 3D image based 3D treatment planning in cervix cancer brachytherapy with emphasis on MRI assessment of GTV and CTV
Radiother Oncol, 74 (3), 235-45
DOI 10.1016/j.radonc.2004.12.015, PubMed 15763303

Hellebust TP (2005)
Anbefaling for opplæring av medisinske fysikere i stråletrapi i Norge
In Strålevernrapport, Statens strålevern, Østerås, 2005:6, 85 s.
BIBSYS 050957651

Hellebust TP (2005)
Øvingsoppgaver til Anbefaling for opplæring av medisinskefysikere i stråleterapi i Norge
In Strålevernrapport, Statens strålevern, Østerås, 2005:6b, 99 s.
BIBSYS 050957694

Publications 2003

Dale E, Hellebust TP, Bruland ØS, Olsen DR (2003)
Comparative analyses of the dynamic properties of the rectum studied by cryo-sections of human cadavers and pelvic CT scans of patients
Br J Radiol, 76 (902), 104-8
DOI 10.1259/bjr/75640835, PubMed 12642278

Publications 2002

Johannessen HO, Dale E, Hellebust TP, Olsen DR, Nesland JM, Giercksky KE (2002)
Modeling volume effects of experimental brachytherapy in the rat rectum: uncovering the limitations of a radiobiologic concept
Int J Radiat Oncol Biol Phys, 53 (4), 1014-22
DOI 10.1016/s0360-3016(02)02835-3, PubMed 12095571

Publications 2001

Hellebust TP, Dale E, Skjønsberg A, Olsen DR (2001)
Inter fraction variations in rectum and bladder volumes and dose distributions during high dose rate brachytherapy treatment of the uterine cervix investigated by repetitive CT-examinations
Radiother Oncol, 60 (3), 273-80
DOI 10.1016/s0167-8140(01)00386-3, PubMed 11514007

Publications 2000

Dale E, Hellebust TP, Skjønsberg A, Høgberg T, Olsen DR (2000)
Modeling normal tissue complication probability from repetitive computed tomography scans during fractionated high-dose-rate brachytherapy and external beam radiotherapy of the uterine cervix
Int J Radiat Oncol Biol Phys, 47 (4), 963-71
DOI 10.1016/s0360-3016(00)00510-1, PubMed 10863066

Publications 1997

Knutsen BH, Skretting A, Hellebust TP, Olsen DR (1997)
Determination of 3D dose distribution from intracavitary brachytherapy of cervical cancer by MRI of irradiated ferrous sulphate gel
Radiother Oncol, 43 (2), 219-27
DOI 10.1016/s0167-8140(97)01925-7, PubMed 9192970