Blar i NTNU Open på forfatter "Selnæs, Kirsten Margrete"
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Prostate-Specific Membrane Antigen PET/Magnetic Resonance Imaging for the Planning of Salvage Radiotherapy in Patients with Prostate Cancer with Biochemical Recurrence After Radical Prostatectomy
Elschot, Mattijs; Selnæs, Kirsten Margrete; Langørgen, Sverre; Johansen, Håkon; Bertilsson, Helena; Tandstad, Torgrim; Bathen, Tone Frost (Journal article; Peer reviewed, 2019)Prostate-specific membrane antigen (PSMA) PET/magnetic resonance (MR) imaging can help distinguish between patients with prostate cancer with locoregional recurrence and those with distant metastases, even at low ... -
Pseudo-T2 mapping for normalization of T2-weighted prostate MRI
Sørland, Kaia Ingerdatter; Sunoqrot, Mohammed R. S.; Sandsmark, Elise; Langørgen, Sverre; Bertilsson, Helena; Trimble, Christopher George; Lin, Gigin; Selnæs, Kirsten Margrete; Goa, Pål Erik; Bathen, Tone Frost; Elschot, Mattijs (Peer reviewed; Journal article, 2022)Objective Signal intensity normalization is necessary to reduce heterogeneity in T2-weighted (T2W) magnetic resonance imaging (MRI) for quantitative analysis of multicenter data. AutoRef is an automated dual-reference ... -
A Quality Control System for Automated Prostate Segmentation on T2-Weighted MRI
Sunoqrot, Mohammed R. S.; Selnæs, Kirsten Margrete; Sandsmark, Elise; Nketiah, Gabriel Addio; Zavala-Romero, Olmo; Stoyanova, Radka; Bathen, Tone Frost; Elschot, Mattijs (Journal article; Peer reviewed, 2020)Computer-aided detection and diagnosis (CAD) systems have the potential to improve robustness and efficiency compared to traditional radiological reading of magnetic resonance imaging (MRI). Fully automated segmentation ... -
Relative Enhanced Diffusivity in Prostate Cancer: Protocol Optimization and Diagnostic Potential
Billdal, Daniel Chen; While, Peter Thomas; Selnæs, Kirsten Margrete; Sunoqrot, Mohammed; Langørgen, Sverre; Bertilsson, Helena; Bathen, Tone Frost; Elschot, Mattijs (Journal article; Peer reviewed, 2019)Background Relative enhanced diffusivity (RED) is a potential biomarker for indirectly measuring perfusion in tissue using diffusion‐weighted magnetic resonance imaging (MRI) with 3 b values. Purpose To optimize the RED ... -
The Reproducibility of Deep Learning-Based Segmentation of the Prostate Gland and Zones on T2-Weighted MR Images
Sunoqrot, Mohammed R. S.; Selnæs, Kirsten Margrete; Sandsmark, Elise; Langørgen, Sverre; Bertilsson, Helena; Bathen, Tone Frost; Elschot, Mattijs (Peer reviewed; Journal article, 2021)Volume of interest segmentation is an essential step in computer-aided detection and diagnosis (CAD) systems. Deep learning (DL)-based methods provide good performance for prostate segmentation, but little is known about ... -
Simultaneous 18F-fluciclovine Positron Emission Tomography and Magnetic Resonance Spectroscopic Imaging of Prostate Cancer
Esmaeili, Morteza; Tayari, Nassim; Scheenen, Tom WJ; Elschot, Mattijs; Sandsmark, Elise; Bertilsson, Helena; Heerschap, Arend; Selnæs, Kirsten Margrete; Bathen, Tone Frost (Journal article; Peer reviewed, 2018)Purpose: To investigate the associations of metabolite levels derived from magnetic resonance spectroscopic imaging (MRSI) and 18F-fluciclovine positron emission tomography (PET) with prostate tissue characteristics. Methods: ... -
Spermine and Citrate as Metabolic Biomarkers for Assessing Prostate Cancer Aggressiveness
Giskeødegård, Guro F.; Bertilsson, Helena; Selnæs, Kirsten Margrete; Wright, A.J.; Bathen, Tone Frost; Viset, Trond; Halgunset, Jostein; Angelsen, Anders; Gribbestad, Ingrid S; Tessem, May-Britt (Journal article; Peer reviewed, 2013)Separating indolent from aggressive prostate cancer is an important clinical challenge for identifying patients eligible for active surveillance, thereby reducing the risk of overtreatment. The purpose of this study was ... -
The Effect of Including Bone in DIXON-based Attenuation Correction for 18F-fluciclovine PET/MRI of Prostate Cancer
Elschot, Mattijs; Selnæs, Kirsten Margrete; Johansen, Håkon; Krüger-Stokke, Brage; Bertilsson, Helena; Bathen, Tone Frost (Journal article; Peer reviewed, 2018)The objective of this study was to evaluate the effect of including bone in DIXON-based attenuation correction for 18F-fluciclovine Positron Emission Tomography (PET) / Magnetic Resonance Imaging (MRI) of primary and ... -
Tissue microstructure is linked to MRI parameters and metabolite levels in prostate cancer
Selnæs, Kirsten Margrete; Vettukattil, Muhammad Riyas; Bertilsson, Helena; Wright, Alan J.; Heerschap, Arend; Angelsen, Anders; Tessem, May-Britt; Bathen, Tone Frost (Peer reviewed; Journal article, 2016)Introduction: Magnetic resonance imaging (MRI) can portray spatial variations in tumor heterogeneity, architecture, and its microenvironment in a non-destructive way. The objective of this study was to assess the relationship ... -
Utility of T2-weighted MRI texture analysis in assessment of peripheral zone prostate cancer aggressiveness: a single-arm, multicenter study
Nketiah, Gabriel Addio; Elschot, Mattijs; Scheenen, Tom W.J.; Maas, Marnix C.; Bathen, Tone Frost; Selnæs, Kirsten Margrete (Peer reviewed; Journal article, 2021)T2-weighted (T2W) MRI provides high spatial resolution and tissue-specific contrast, but it is predominantly used for qualitative evaluation of prostate anatomy and anomalies. This retrospective multicenter study evaluated ...