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53rd SSRMP Annual Meeting

21–22 Nov 2019
Paul Scherrer Institute
Europe/Zurich timezone
A WARM WELCOME in VILLIGEN

Administration:

Session

Session I: Image Guidance - Chair: Prof. Philippe Cattin

Session I:
21 Nov 2019, 10:15
Paul Scherrer Institute

Paul Scherrer Institute

Auditorium WHGA/001 West Area Forschungsstrasse 111 CH-5232 Villigen

Description

Department of Biomedical Engineering, University of Basel

Presentation materials

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  1. 22. Targeting arteriovenous malformations without an invasive head ring - A new software prototype
    Daniel SCHMIDHALTER (Division of Medical Radiation Physics and Department of Radiation Oncology, Inselspital, Bern University Hospital, and University of Bern, Switzerland.)
    21/11/2019, 10:15
    Oral

    Introduction
    Arteriovenous malformations (AVMs) are abnormal, snarled tangles of blood vessels that cause multiple irregular connections between the arteries and veins. In order to correctly locate an AVM, typically, a digital subtraction angiography (DSA) is carried out. To use the DSA for target definition an accurate image registration between CT and DSA is required. Carrying out a...

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  2. 13. Motion management and dose reconstruction for MRI guided cardiac radiosurgery
    Stefanie EHRBAR (Radiation Oncology Department, Universitätsspital Zürich, Switzerland)
    21/11/2019, 10:30
    Oral

    Purpose: To evaluate the dosimetric effect of the residual breathing motion during gating for the first patient treated with MRI guided cardiac radiosurgery.

    Methods: A patient with ventricular tachycardia was treated in one fraction with a dose of 25 Gy to the 85%-isodose line to the planning target volume (PTV). The target volume (TV) was defined according to the cardiologists...

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  3. 14. Benefit of adaptation in MR-guided radiotherapy of lesions in the abdomen
    Ms Manon SPANIOL (Department of Radiation Oncology, University Hospital Zurich and University of Zurich, Zurich, Switzerland)
    21/11/2019, 10:45
    Oral

    Aims
    The precise treatment of tumor lesions in the abdomen is challenging due to inter- and intra-fractional anatomy variations. With MR-guided radiotherapy, daily plan adaption can be performed. Here we investigated the benefit of adaption in terms of tumor coverage and organ at risk (OAR) sparing.

    Methods
    SBRT radiotherapy treatment plans, created with IMRT and treated with a gated...

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  4. 17. Time-Resolved 4DMRI
    Dr Christoph JUD (University of Basel)
    21/11/2019, 11:00
    Oral

    Introduction
    4D imaging is an important tool for respiratory motion quantification and, among others, finds its application in radiotherapy treatment planning. To date, most 4D imaging techniques rely on prospective or retrospective stacking of partial image data and binning [1]. The result is a respiratory-correlated 4D image representing a mean breathing cycle. However, such binning...

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  5. 16. Ultrasound-based Lung Motion Modelling
    Ms Alina GIGER (Center for medical Image Analysis & Navigation, University of Basel, Allschwil, Switzerland; Department of Biomedical Engineering, University of Basel, Allschwil, Switzerland)
    21/11/2019, 11:15
    Oral

    Introduction
    Respiratory motion poses great challenges in pencil beam scanned (PBS) proton therapy of mobile targets. In a recent study, we presented the potential of tumour tracking using a patient-specific motion model on simulated 4DCT(MRI) data sets [1]. A statistical motion model was used to estimate dense lung motion information from 2D abdominal ultrasound (US). While this study...

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