Výsledky vyhledávání - "Stein Harald Holmedal"

Akademický článek

Semi-automatic tumor segmentation of rectal cancer based on functional magnetic resonance imaging

Autor: Franziska Knuth, Aurora R. Groendahl, René M. Winter, Turid Torheim, Anne Negård, Stein Harald Holmedal, Kine Mari Bakke, Sebastian Meltzer, Cecilia M. Futsæther, Kathrine R. Redalen

Publikováno v: Physics and Imaging in Radiation Oncology, Vol 22, Iss , Pp 77-84 (2022)

Background and purpose: Tumor delineation is required both for radiotherapy planning and quantitative imaging biomarker purposes. It is a manual, time- and labor-intensive process prone to inter- and intraobserver variations. Semi or fully automatic

Externí odkaz: https://doaj.org/article/1518bf6f2f2041939c1275a9042a51d9

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Akademický článek

Imaging the tumour microenvironment in rectal cancer: Decline in tumour blood flow during radiotherapy predicts good outcome

Autor: Kine Mari Bakke, Sebastian Meltzer, Endre Grøvik, Anne Negård, Stein Harald Holmedal, Lars Tore Gyland Mikalsen, Arne Engebret Færden, Lars Gustav Lyckander, Frida Marie Ihle Julbø, Atle Bjørnerud, Kjell-Inge Gjesdal, Anne Hansen Ree, Kathrine Røe Redalen

Publikováno v: Physics and Imaging in Radiation Oncology, Vol 25, Iss , Pp 100417- (2023)

Background and purpose: Measuring rectal tumour response to radiation is pivotal to restaging patients and for possibly stratification to a watch-and-wait strategy. Recognizing the importance of the tumour microenvironment, we investigated a less exp

Externí odkaz: https://doaj.org/article/aeac339ff24f413f90e40f15fbad1f67

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Akademický článek

Adhesions to Mesh after Ventral Hernia Mesh Repair Are Detected by MRI but Are Not a Cause of Long Term Chronic Abdominal Pain

Autor: Odd Langbach, Stein Harald Holmedal, Ole Jacob Grandal, Ola Røkke

Publikováno v: Gastroenterology Research and Practice, Vol 2016 (2016)

Aim. The aim of the present study was to perform MRI in patients after ventral hernia mesh repair, in order to evaluate MRI’s ability to detect intra-abdominal adhesions. Materials and Methods. Single-center long term follow-up study of 155 patient

Externí odkaz: https://doaj.org/article/64a868bdfee54dd983bdf5a1396e26db

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Sex Differences and Tumor Blood Flow from Dynamic Susceptibility Contrast MRI Are Associated with Treatment Response after Chemoradiation and Long-term Survival in Rectal Cancer

Autor: Kathrine Røe Redalen, Anne Hansen Ree, Stein Harald Holmedal, Anne Negård, Kjell-Inge Gjesdal, Sebastian Meltzer, Kine Mari Bakke, Endre Grøvik, Atle Bjørnerud

Publikováno v: Radiology

Sex differences, tumor vascularity, and blood flow seen on multiecho dynamic contrast–based MRI scans enabled prediction of treatment response and overall survival in patients with rectal cancer. Background: MRI is the standard tool for rectal canc

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cee0d238d04d2204e44ac0f118e0cb75
https://doi.org/10.1148/radiol.2020200287

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Dynamic multi-echo DCE- and DSC-MRI in rectal cancer: Low primary tumor Ktrans and ΔR2* peak are significantly associated with lymph node metastasis

Autor: Anne Negård, Atle Bjørnerud, Stein Harald Holmedal, Kathrine Røe Redalen, Kjell-Inge Gjesdal, Anne Hansen Ree, Tryggve H. Storås, Endre Grøvik, Sebastian Meltzer

Publikováno v: Journal of Magnetic Resonance Imaging. 46:194-206

Purpose To implement a dynamic contrast-based multi-echo MRI sequence in assessment of rectal cancer and evaluate associations between histopathologic data and the acquired dynamic contrast-enhanced (DCE) and dynamic susceptibility contrast (DSC) -MR

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::bc3551c43416aa9e528d6b820454a237
https://doi.org/10.1002/jmri.25566

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Comparison of Intravoxel incoherent motion imaging and multiecho dynamic contrast-based MRI in rectal cancer

Autor: Anne Hansen Ree, Kathrine Røe Redalen, Stein Harald Holmedal, Kjell-Inge Gjesdal, Sebastian Meltzer, Kine Mari Bakke, Lars Tore Gyland Mikalsen, Endre Grøvik, Anne Negård, Lars Gustav Lyckander, Atle Bjørnerud

Publikováno v: Journal of Magnetic Resonance Imaging

Background Dynamic contrast‐based MRI and intravoxel incoherent motion imaging (IVIM) MRI are both methods showing promise as diagnostic and prognostic tools in rectal cancer. Both methods aim at measuring perfusion‐related parameters, but the re

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::26c2c58d694b606ccb0c6bb0d50a622e
http://hdl.handle.net/11250/2637120

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Dynamic multi-echo DCE- and DSC-MRI in rectal cancer: Low primary tumor K

Autor: Endre, Grøvik, Kathrine Røe, Redalen, Tryggve Holck, Storås, Anne, Negård, Stein Harald, Holmedal, Anne Hansen, Ree, Sebastian, Meltzer, Atle, Bjørnerud, Kjell-Inge, Gjesdal

Publikováno v: Journal of magnetic resonance imaging : JMRI. 46(1)

To implement a dynamic contrast-based multi-echo MRI sequence in assessment of rectal cancer and evaluate associations between histopathologic data and the acquired dynamic contrast-enhanced (DCE) and dynamic susceptibility contrast (DSC) -MRI parame

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::81c925ce82bd583029387110d7e348df
https://pubmed.ncbi.nlm.nih.gov/28001320

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