Browsing by author "Wetscherek, Andreas"
Now showing items 21-27 of 27
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Respiratory motion modelling for MR-guided lung cancer radiotherapy: model development and geometric accuracy evaluation.
Eiben, B; Bertholet, J; Tran, EH; Wetscherek, A; Shiarli, A-M; et al. (IOP Publishing Ltd, 2024-02-19)Objective.Respiratory motion of lung tumours and adjacent structures is challenging for radiotherapy. Online MR-imaging cannot currently provide real-time volumetric information of the moving patient anatomy, therefore ... -
Super-resolution T2-weighted 4D MRI for image guided radiotherapy.
Freedman, JN; Collins, DJ; Gurney-Champion, OJ; McClelland, JR; Nill, S; et al. (ELSEVIER IRELAND LTD, 2018-12-01)BACKGROUND AND PURPOSE: The superior soft-tissue contrast of 4D-T2w MRI motivates its use for delineation in radiotherapy treatment planning. We address current limitations of slice-selective implementations, including ... -
Synthetic 4D-CT of the thorax for treatment plan adaptation on MR-guided radiotherapy systems.
Freedman, JN; Bainbridge, HE; Nill, S; Collins, DJ; Kachelrieß, M; et al. (IOP PUBLISHING LTD, 2019-05-23)MR-guided radiotherapy treatment planning utilises the high soft-tissue contrast of MRI to reduce uncertainty in delineation of the target and organs at risk. Replacing 4D-CT with MRI-derived synthetic 4D-CT would support ... -
T2-Weighted 4D Magnetic Resonance Imaging for Application in Magnetic Resonance-Guided Radiotherapy Treatment Planning.
Freedman, JN; Collins, DJ; Bainbridge, H; Rank, CM; Nill, S; et al. (LIPPINCOTT WILLIAMS & WILKINS, 2017-10-01)OBJECTIVES: The aim of this study was to develop and verify a method to obtain good temporal resolution T2-weighted 4-dimensional (4D-T2w) magnetic resonance imaging (MRI) by using motion information from T1-weighted 4D ... -
Texture analysis using proton density and T2 relaxation in patients with histological usual interstitial pneumonia (UIP) or nonspecific interstitial pneumonia (NSIP).
Buzan, MTA; Wetscherek, A; Heussel, CP; Kreuter, M; Herth, FJ; et al. (PUBLIC LIBRARY SCIENCE, 2017-05-16)OBJECTIVES: The purpose of our study was to assess proton density (PD) and T2 relaxation time of usual interstitial pneumonia (UIP) and nonspecific interstitial pneumonia (NSIP) and to evaluate their utility in differentiating ... -
The impact of 2D cine MR imaging parameters on automated tumor and organ localization for MR-guided real-time adaptive radiotherapy.
Menten, MJ; Fast, MF; Wetscherek, A; Rank, CM; Kachelrieß, M; et al. (IOP PUBLISHING LTD, 2018-11-22)2D cine MR imaging may be utilized to monitor rapidly moving tumors and organs-at-risk for real-time adaptive radiotherapy. This study systematically investigates the impact of geometric imaging parameters on the ability ... -
Tumour auto-contouring on 2d cine MRI for locally advanced lung cancer: A comparative study.
Fast, MF; Eiben, B; Menten, MJ; Wetscherek, A; Hawkes, DJ; et al. (ELSEVIER IRELAND LTD, 2017-12-01)BACKGROUND AND PURPOSE: Radiotherapy guidance based on magnetic resonance imaging (MRI) is currently becoming a clinical reality. Fast 2d cine MRI sequences are expected to increase the precision of radiation delivery by ...