Výsledky vyhledávání - "Carmen Seller Oria"

Technical note: Flat panel proton radiography with a patient specific imaging field for accurate WEPL assessment

Autor: Carmen Seller Oria, Jeffrey Free, Gabriel Guterres Marmitt, Barbara Knäusl, Sytze Brandenburg, Antje C. Knopf, Arturs Meijers, Johannes A. Langendijk, Stefan Both

Publikováno v: Medical Physics, 50(3), 1756-1765. Wiley

Background: Proton radiography (PR) uses highly energetic proton beams to create images where energy loss is the main contrast mechanism. Water-equivalent path length (WEPL) measurements using flat panel PR (FP-PR) have potential for in vivo range ve

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e610c59ce95143d8e75a3027df5a1c09
https://research.rug.nl/en/publications/d46c42d0-d7a1-4b33-aea6-1e401fe4489f

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Technical Note: First report on an in vivo range probing quality control procedure for scanned proton beam therapy in head and neck cancer patients

Autor: Johannes A. Langendijk, Arturs Meijers, J. Free, Carmen Seller Oria, Stefan Both, Antje Knopf

Publikováno v: Medical Physics. Wiley

PURPOSE: The capability of proton therapy to provide highly conformal dose distributions is impaired by range uncertainties. The aim of this work is to apply range probing (RP), a form of a proton radiography-based quality control (QC) procedure for

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::06914681c5d0ece1dfc69b085db7f831
https://doi.org/10.1002/mp.14713

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Deep learning-based 4D-synthetic CTs from sparse-view CBCTs for dose calculations in adaptive proton therapy

Autor: Adrian Thummerer, Carmen Seller Oria, Paolo Zaffino, Sabine Visser, Arturs Meijers, Gabriel Guterres Marmitt, Robin Wijsman, Joao Seco, Johannes Albertus Langendijk, Antje Christin Knopf, Maria Francesca Spadea, Stefan Both

Publikováno v: Medical Physics, 49(11), 6824-6839. Wiley

Background Time-resolved 4D cone beam-computed tomography (4D-CBCT) allows a daily assessment of patient anatomy and respiratory motion. However, 4D-CBCTs suffer from imaging artifacts that affect the CT number accuracy and prevent accurate proton do

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::12a58ef4783a6d1792dfeae6276d8b75
https://research.rug.nl/en/publications/c238b11b-2ead-4f72-b183-23a58ae6f516

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Optimizing calibration settings for accurate water equivalent path length assessment using flat panel proton radiography

Autor: Arturs Meijers, Carmen Seller Oria, G.G. Marmitt, Stefan Both, Johannes A. Langendijk, J. Free, Antje Knopf

Publikováno v: Physics in Medicine and Biology, 66(21):21NT02. IOP PUBLISHING LTD

Objective: Proton range uncertainties can compromise the effectiveness of proton therapy treatments. Water equivalent path length (WEPL) assessment by flat panel detector proton radiography (FP-PR) can provide means of range uncertainty detection. Si

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8aab82d541639fbe449e3f72b25ee507
https://doi.org/10.1088/1361-6560/ac2c4f

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Clinical suitability of deep learning based synthetic CTs for adaptive proton therapy of lung cancer

Autor: Adrian Thummerer, Carmen Seller Oria, Antje-Christin Knopf, Robin Wijsman, Arturs Meijers, Stefan Both, G.G. Marmitt, Joao Seco, Paolo Zaffino, Johannes A. Langendijk, Maria Francesca Spadea

Publikováno v: Medical Physics, 48(12), 7673-7684. Wiley

PURPOSE: Adaptive proton therapy (APT) of lung cancer patients requires frequent volumetric imaging of diagnostic quality. Cone-beam CT (CBCT) can provide these daily images, but x-ray scattering limits CBCT-image quality and hampers dose calculation

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f4e9df3fb82c465d827eae671d3ae63d
https://pubmed.ncbi.nlm.nih.gov/34725829

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Range probing as a quality control tool for CBCT-based synthetic CTs

Autor: J. Free, Arturs Meijers, Carmen Seller Oria, Adrian Thummerer, Antje Knopf, Johannes A. Langendijk, Stefan Both

Publikováno v: Medical Physics
Medical Physics, 48(8). Wiley

PURPOSE: Cone beam CT (CBCT) based synthetic CTs (sCT) produced with a deep convolutional neural network (DCNN) show high image quality, suggesting their potential usability in adaptive proton therapy workflows. However, the nature of such workflows

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1cd020fa896007456200707f0e7afa39
https://doi.org/10.1002/mp.15020

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Classification of various sources of error in range assessment using proton radiography and neural networks in head and neck cancer patients

Autor: Arturs Meijers, Stefan Both, Johannes A. Langendijk, G.G. Marmitt, Carmen Seller Oria, Antje Knopf

Publikováno v: Physics in Medicine and Biology, 65(23):235009. IOP PUBLISHING LTD

This study evaluates the suitability of convolutional neural networks (CNNs) to automatically process proton radiography (PR)-based images. CNNs are used to classify PR images impaired by several sources of error affecting the proton range, more prec

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6b654784d19fda575f3640e6e6dcb414
https://research.rug.nl/en/publications/7eee092f-b3a3-44a0-a596-beefa7b65dd5

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Assessment of range uncertainty in lung-like tissue using a porcine lung phantom and proton radiography

Autor: A Meijers, Oria C Seller, J Free, D Bondesson, Carmen Seller Oria, M Rabe, K Parodi, G Landry, J A Langendijk, S Both, C Kurz, AC Knopf

Publikováno v: Physics in Medicine and Biology, 65(15):155014. IOP PUBLISHING LTD

Thoracic tumours are increasingly considered indications for pencil beam scanned proton therapy (PBS-PT) treatments. Conservative robustness settings have been suggested due to potential range straggling effects caused by the lung micro-structure. Us

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0434296efa9d6fb72afa7ba8521ea7ca
https://research.rug.nl/en/publications/a157564b-741c-47e1-b112-cda7dbc234bd

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