Blar i SINTEF Open på forfatter "Solheim, Ole"

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    • 18F-FACBC PET/MRI in diagnostic assessment and neurosurgery of gliomas 

      Karlberg, Anna Maria; Berntsen, Erik Magnus; Johansen, Håkon; Skjulsvik, Anne Jarstein; Reinertsen, Ingerid; Hong, Yan Dai; Xiao, Yiming; Rivaz, Hassan; Borghammer, Per; Solheim, Ole; Eikenes, Live (Peer reviewed; Journal article, 2019)
      Purpose: This pilot study aimed to evaluate the amino acid tracer 18F-FACBC with simultaneous PET/MRI in diagnostic assessment and neurosurgery of gliomas. Materials and Methods: Eleven patients with suspected primary ...

    • Animal study assessing safety of an acoustic coupling fluid that holds the potential to avoid surgically induced artifacts in 3D ultrasound guided operations 

      Jakola, Asgeir S; Jørgensen, Arve; Selbekk, Tormod; Michler, Ralf-Peter; Solheim, Ole; Torp, Sverre Helge; Sagberg, Lisa Millgård; Aadahl, Petter; Unsgård, Geirmund (Journal article; Peer reviewed, 2014)
      Background Use of ultrasound in brain tumor surgery is common. The difference in attenuation between brain and isotonic saline may cause artifacts that degrade the ultrasound images, potentially affecting resection grades ...

    • Are there predilection sites for intracranial meningioma? A population-based atlas 

      Hosainey, Sayied Abdol Mohieb; Bouget, David; Reinertsen, Ingerid; Sagberg, Lisa Millgård; Torp, Sverre Helge; Jakola, Asgeir Store; Solheim, Ole (Peer reviewed; Journal article, 2021)
      Meningioma is the most common benign intracranial tumor and is believed to arise from arachnoid cap cells of arachnoid granulations. We sought to develop a population-based atlas from pre-treatment MRIs to explore the ...

    • Brain atlas for assessing the impact of tumor location on perioperative quality of life in patients with high-grade glioma: A prospective population-based cohort study 

      Sagberg, Lisa Millgård; Iversen, Daniel Høyer; Fyllingen, Even Hovig; Jakola, Asgeir Store; Reinertsen, Ingerid; Solheim, Ole (Journal article; Peer reviewed, 2019)
      Background Tumor location is important for surgical decision making. Particular attention is paid to regions that contain sensorimotor and language functions, but it is unknown if these are the most important regions from ...

    • Comparison of contrast in brightness mode and strain ultrasonography of glial brain tumours 

      Selbekk, Tormod; Brekken, Reidar; Indergaard, Marit Kristina; Solheim, Ole; Unsgård, Geirmund (Journal article; Peer reviewed, 2012)
      Background Image contrast between normal tissue and brain tumours may sometimes appear to be low in intraoperative ultrasound. Ultrasound imaging of strain is an image modality that has been recently explored for ...

    • Glioblastoma Segmentation: Comparison of Three Different Software Packages 

      Fyllingen, Even Hovig; Stensjøen, Anne Line; Berntsen, Erik Magnus; Reinertsen, Ingerid; Solheim, Ole (Journal article, 2016)
      To facilitate a more widespread use of volumetric tumor segmentation in clinical studies, there is an urgent need for reliable, user-friendly segmentation software. The aim of this study was therefore to compare three ...

    • Glioblastoma Surgery Imaging-Reporting and Data System: Validation and Performance of the Automated Segmentation Task 

      Bouget, David Nicolas Jean-Marie; Eijgelaar, Roelant; Pedersen, André; Kommers, Ivar; Ardon, Hilko; Barkhof, Frederik; Bello, Lorenzo; Berger, Mitchel S.; Nibali, Marco Conti; Furtner, Julia; Fyllingen, Even Hovig; Hervey-Jumper, Shawn; Idema, Albert J. S.; Kiesel, Barbara; Kloet, Alfred; Mandonnet, Emmanuel; Müller, Domenique M. J.; Robe, Pierre; Rossi, Marco; Sagberg, Lisa Millgård; Sciortino, Tommaso; van den Brink, Wimar A.; Wagemakers, Michiel; Widhalm, Georg; Witte, Marnix G.; Zwinderman, Aeilko H.; Reinertsen, Ingerid; Hamer, Philip C De Witt; Solheim, Ole (Peer reviewed; Journal article, 2021)
      For patients with presumed glioblastoma, essential tumor characteristics are determined from preoperative MR images to optimize the treatment strategy. This procedure is time-consuming and subjective, if performed by crude ...

    • Glioblastoma Surgery Imaging—Reporting and Data System: Standardized Reporting of Tumor Volume, Location, and Resectability Based on Automated Segmentations 

      Kommers, Ivar; Bouget, David Nicolas Jean-Marie; Pedersen, André; Eijgelaar, Roelant; Ardon, Hilko; Barkhof, Frederik; Bello, Lorenzo; Berger, Mitchel S.; Nibali, Marco Conti; Furtner, Julia; Fyllingen, Even Hovig; Hervey-Jumper, Shawn; Idema, Albert J. S.; Kiesel, Barbara; Kloet, Alfred; Mandonnet, Emmanuel; Müller, Domenique M. J.; Robe, Pierre; Rossi, Marco; Sagberg, Lisa Millgård; Sciortino, Tommaso; van den Brink, Wimar A.; Wagemakers, Michiel; Widhalm, Georg; Witte, Marnix G.; Zwinderman, Aeilko H.; Reinertsen, Ingerid; Solheim, Ole; De Witt Hamer, Philip C. (Peer reviewed; Journal article, 2021)
      Treatment decisions for patients with presumed glioblastoma are based on tumor characteristics available from a preoperative MR scan. Tumor characteristics, including volume, location, and resectability, are often estimated ...

    • How well do neurosurgeons predict survival in patients with high-grade glioma? 

      Sagberg, Lisa Millgård; Jakola, Asgeir S.; Reinertsen, Ingerid; Solheim, Ole (Peer reviewed; Journal article, 2021)
      Due to the lack of reliable prognostic tools, prognostication and surgical decisions largely rely on the neurosurgeons’ clinical prediction skills. The aim of this study was to assess the accuracy of neurosurgeons’ prediction ...

    • Is the anatomical distribution of low-grade gliomas linked to regions of gliogenesis? 

      Skjulsvik, Anne Jarstein; Bø, Hans Kristian; Jakola, Asgeir S; Berntsen, Erik Magnus; Bø, Lars Eirik; Reinertsen, Ingerid; Myrmel, Kristin Smistad; Sjåvik, Kristin; Åberg, Kristin; Berg, Thomas; Hong, Yan Dai; Kloster, Roar; Torp, Sverre Helge; Solheim, Ole (Peer reviewed; Journal article, 2020)
      Introduction: According to the stem cell theory, two neurogenic niches in the adult human brain may harbor cells that initiate the formation of gliomas: The larger subventricular zone (SVZ) and the subgranular zone (SGZ) ...

    • Lower-Grade Gliomas: An Epidemiological Voxel-Based Analysis of Location and Proximity to Eloquent Regions 

      Gómez Vecchio, Tomás; Neimantaite, Alice; Corell, Alba; Bartek, Jiri; Jensdottir, Margret; Reinertsen, Ingerid; Solheim, Ole; Jakola, Asgeir S. (Peer reviewed; Journal article, 2021)
      Background: Glioma is the most common intra-axial tumor, and its location relative to critical areas of the brain is important for treatment decision-making. Studies often report tumor location based on anatomical taxonomy ...

    • Meningioma Segmentation in T1-Weighted MRI Leveraging Global Context and Attention Mechanisms 

      Bouget, David Nicolas Jean-Marie; Pedersen, André; Hosainey, Sayied Abdol Mohieb; Solheim, Ole; Reinertsen, Ingerid (Peer reviewed; Journal article, 2021)
      Purpose: Meningiomas are the most common type of primary brain tumor, accounting for ~30% of all brain tumors. A substantial number of these tumors are never surgically removed but rather monitored over time. Automatic and ...

    • Multimodal 18F-Fluciclovine PET/MRI and Ultrasound-Guided Neurosurgery of an Anaplastic Oligodendroglioma 

      Karlberg, Anna Maria; Berntsen, Erik Magnus; Johansen, Håkon; Myrthue, Mariane Olesen; Skjulsvik, Anne Jarstein; Reinertsen, Ingerid; Esmaeili, Morteza; Dai, Hong Yan; Xiao, Yiming; Rivaz, Hassan; Borghammer, Per; Solheim, Ole; Eikenes, Live (Journal article; Peer reviewed, 2017)

    • Preoperative Brain Tumor Imaging: Models and Software for Segmentation and Standardized Reporting 

      Bouget, David Nicolas Jean-Mar; Pedersen, André; Jakola, Asgeir S.; Kavouridis, Vasileios; Emblem, Kyrre Eeg; Eijgelaar, Roelant S; Kommers, Ivar; Ardon, Hilko; Barkhof, Frederik; Bello, Lorenzo; Berger, Mitchel S.; Nibali, Marco Conti; Furtner, Julia; Hervey-Jumper, Shawn; Idema, Albert J. S.; Kiesel, Barbara; Kloet, Alfred; Mandonnet, Emmanuel; Müller, Domenique M. J.; Robe, Pierre A; Rossi, Marco; Sciortino, Tommaso; van den Brink, Wimar A.; Wagemakers, Michiel; Widhalm, Georg; Witte, Marnix G.; Zwinderman, Aeilko H.; Hamer, Philip C De Witt; Solheim, Ole; Reinertsen, Ingerid (Peer reviewed; Journal article, 2022)
      For patients suffering from brain tumor, prognosis estimation and treatment decisions are made by a multidisciplinary team based on a set of preoperative MR scans. Currently, the lack of standardized and automatic methods ...

    • Pretreatment patient-reported cognitive function in patients with diffuse glioma 

      Schei, Stine; Solheim, Ole; Salvesen, Øyvind; Hjermstad, Marianne Jensen; Bouget, David Nicolas Jean-Marie; Sagberg, Lisa Millgård (Peer reviewed; Journal article, 2022)
      Purpose: Cognitive function is frequently assessed with objective neuropsychological tests, but patient-reported cognitive function is less explored. We aimed to investigate the preoperative prevalence of patient-reported ...

    • Quantitative texture analysis in the prediction of IDH status in low-grade gliomas. 

      Jakola, Asgeir Store; Zang, YH; Skjulsvik, Anne Jarstein; Solheim, Ole; Bø, Hans Kristian; Berntsen, Erik Magnus; Reinertsen, Ingerid; Gulati, Sasha; Förander, Petter; Brismar, Torkel B. (Journal article; Peer reviewed, 2017)

    • Spatial distribution of malignant transformation in patients with low-grade glioma 

      Jakola, Asgeir S; Bouget, David Nicolas Jean-Marie; Reinertsen, Ingerid; Skjulsvik, Anne Jarstein; Sagberg, Lisa Millgård; Bø, Hans Kristian; Gulati, Sasha; Sjåvik, Kristin; Solheim, Ole (Peer reviewed; Journal article, 2020)
      Background Malignant transformation represents the natural evolution of diffuse low-grade gliomas (LGG). This is a catastrophic event, causing neurocognitive symptoms, intensified treatment and premature death. However, ...

    • Survival of glioblastoma in relation to tumor location: a statistical tumor atlas of a population-based cohort 

      Fyllingen, Even Hovig; Bø, Lars Eirik; Reinertsen, Ingerid; Jakola, Asgeir Store; Sagberg, Lisa Millgård; Berntsen, Erik Magnus; Salvesen, Øyvind; Solheim, Ole (Peer reviewed; Journal article, 2021)
      Purpose: Previous studies on the effect of tumor location on overall survival in glioblastoma have found conflicting results. Based on statistical maps, we sought to explore the effect of tumor location on overall survival ...

    • The diagnostic properties of intraoperative ultrasound in glioma surgery and factors associated with gross total tumor resection 

      Munkvold, Bodil Karoline Ravn; Jakola, Asgeir Store; Reinertsen, Ingerid; Sagberg, Lisa Millgård; Unsgård, Geirmund; Solheim, Ole (Journal article; Peer reviewed, 2018)
      Objective In glioma operations, we sought to analyze sensitivity, specificity, and predictive values of intraoperative 3-dimensional ultrasound (US) for detecting residual tumor compared with early postoperative magnetic ...

    • The Direction of Tumour Growth in Glioblastoma Patients 

      Esmaeili, Morteza; Stensjøen, Anne Line; Berntsen, Erik Magnus; Solheim, Ole; Reinertsen, Ingerid (Journal article; Peer reviewed, 2018)
      Generating MR-derived growth pattern models for glioblastoma multiforme (GBM) has been an attractive approach in neuro-oncology, suggesting a distinct pattern of lesion spread with a tendency in growing along the white ...