ArticleJournal of applied clinical medical physics2019
Comparison of pancreatic respiratory motion management with three abdominal corsets for particle radiation therapy: Case study.
Article in Journal of applied clinical medical physics, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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Who cites it
8 citing papers in PubMed, 13 citations in OpenAlex.
- A practical non-custom abdominal corset-based approach for diaphragm motion management in stereotactic body radiotherapy.Radiation oncology (London, England) · 2026Article
- Dose assessment in moving targets and organs at risk during carbon ion therapy for pancreatic cancer with respiratory gating.Physics and imaging in radiation oncology · 2025Article
- Comparison of translation algorithms in determining maximum allowable CTV shifts for Real-Time Gated Proton Therapy (RGPT) robustness evaluation in prostate cancers.Journal of applied clinical medical physics · 2025Article
- Reduction of intrafraction pancreas motion using an abdominal corset compatible with proton therapy and MRI.Clinical and translational radiation oncology · 2023Article
- AAPM Task Group Report 290: Respiratory motion management for particle therapy.Medical physics · 2022Article
- Dose-escalated simultaneously integrated boost photon or proton therapy in pancreatic cancer in anClinical and translational radiation oncology · 2021Article
- Proton beam therapy for tumors of the upper abdomen.The British journal of radiology · 2020Review
- Evaluation of the effects of motion mitigation strategies on respiration-induced motion in each pancreatic region using cine-magnetic resonance imaging.Journal of applied clinical medical physics · 2019Article
Corrections and comments
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Authors and funding
9 authors at 6 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
background and purposeAbdominal organ motion seriously compromises the targeting accuracy for particle therapy in patients with pancreatic adenocarcinoma. This study compares three different abdominal corsets regarding their ability to reduce pancreatic motion and their potential usability in particle therapy. MATERIALS AND
methodsA patient-individualized polyurethane (PU), a semi-individualized polyethylene (PE), and a patient-individualized three-dimensional-scan based polyethylene (3D-PE) corset were manufactured for one healthy volunteer. Time-resolved volumetric four-dimensional-magnetic resonance imaging (4D-MRI) and single-slice two-dimensional (2D) cine-MRI scans were acquired on two consecutive days to compare free-breathing motion patterns with and without corsets. The corset material properties, such as thickness variance, material homogeneity in Hounsfield units (HU) on computed tomography (CT) scans, and manufacturing features were compared. The water equivalent ratio (WER) of corset material samples was measured using a multi-layer ionization chamber for proton energies of 150 and 200 MeV.
resultsAll corsets reduced the pancreatic motion on average by 9.6 mm in inferior-superior and by 3.2 mm in anterior-posterior direction. With corset, the breathing frequency was approximately doubled and the day-to-day motion variations were reduced. The WER measurements showed an average value of 0.993 and 0.956 for the PE and 3DPE corset, respectively, and of 0.298 for the PU corset. The PE and 3DPE corsets showed a constant thickness of 2.8 ± 0.2 and 3.8 ± 0.2 mm, respectively and a homogeneous material composition with a standard deviation (SD) of 31 and 32 HU, respectively. The PU corset showed a variable thickness of 4.2 - 25.6 mm and a heterogeneous structure with air inclusions with an SD of 113 HU.
conclusionAbdominal corsets may be effective devices to reduce pancreatic motion. For particle therapy, PE-based corsets are preferred over PU-based corset due to their material homogeneity and constant thickness.
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