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Your search keyword '"Pameijer, Frank A."' showing total 19 results
Start Over Author "Pameijer, Frank A." Publisher elsevier bv
19 results on '"Pameijer, Frank A."'

1. Improved delineation with diffusion weighted imaging for laryngeal and hypopharyngeal tumors validated with pathology

Author

Smits, Hilde J.G., primary, Raaijmakers, Cornelis P.J., additional, de Ridder, Mischa, additional, Gouw, Zeno A.R., additional, Doornaert, Patricia A.H., additional, Pameijer, Frank A., additional, Lodeweges, Joyce E., additional, Ruiter, Lilian N., additional, Kuijer, Koen M., additional, Schakel, Tim, additional, de Bree, Remco, additional, Dankbaar, Jan W., additional, Terhaard, Chris H.J., additional, Breimer, Gerben E., additional, Willems, Stefan M., additional, and Philippens, Marielle E.P., additional

Published
2024
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2. Comprehensive Quantitative Evaluation of Variability in Magnetic Resonance-Guided Delineation of Oropharyngeal Gross Tumor Volumes and High-Risk Clinical Target Volumes: An R-IDEAL Stage 0 Prospective Study

Author

Cardenas, Carlos E., Blinde, Sanne E., Mohamed, Abdallah S. R., Ng, Sweet Ping, Raaijmakers, Cornelis, Philippens, Marielle, Kotte, Alexis, Al-Mamgani, Abrahim A., Karam, Irene, Thomson, David J., Robbins, Jared, Newbold, Kate, Fuller, Clifton D., Terhaard, Chris, Bahig, Houda, Blanchard, Pierre, Dehnad, Homan, Doornaert, Patricia, Elhalawani, Hesham, Frank, Steven J., Garden, Adam, Gunn, G. Brandon, Hamming-Vrieze, Olga, Kamal, Mona, Kasperts, Nicolien, Lee, Lip Wai, McDonald, Brigid A., McPartlin, Andrew, Meheissen, Mohamed AM, Morrison, William H., Navran, Arash, Nutting, Christopher M., Pameijer, Frank, Phan, Jack, Poon, Ian, Rosenthal, David I, Smid, Ernst J., and Sykes, Andrew J.

Subjects
Observer Variation, Cancer Research, Magnetic Resonance Spectroscopy, Radiation, Radiotherapy Planning, Computer-Assisted, Magnetic Resonance Imaging, Article, Tumor Burden, Oropharyngeal Neoplasms, Oncology, Head and Neck Neoplasms, Humans, Radiology, Nuclear Medicine and imaging, Prospective Studies, Retrospective Studies
Abstract

Tumor and target volume manual delineation remains a challenging task in head and neck cancer radiation therapy. The purpose of this study was to conduct a multi-institutional evaluation of manual delineations of gross tumor volume (GTV), high-risk clinical target volume (CTV), parotids, and submandibular glands on treatment simulation magnetic resonance scans of patients with oropharyngeal cancer.We retrospectively collected pretreatment T1-weighted, T1-weighted with gadolinium contrast, and T2-weighted magnetic resonance imaging scans for 4 patients with oropharyngeal cancer under an institution review board-approved protocol. We provided the scans to 26 radiation oncologists from 7 international cancer centers that participated in this delineation study. We also provide the patients' clinical history and physical examination findings, along with a medical photographic image and radiologic results. We used both the Simultaneous Truth and Performance Level Estimation algorithm and pair-wise comparisons of the contours, using overlap/distance metrics. Lastly, to assess experience and CTV delineation institutional practices, we had participants complete a brief questionnaire.Large variability was measured between observers' delineations for GTVs and CTVs. The mean Dice similarity coefficient values across all physicians' delineations for GTVp, GTVn, CTVp, and CTVn were 0.77, 0.67, 0.77, and 0.69, respectively, for Simultaneous Truth and Performance Level Estimation algorithm comparison, and 0.67, 0.60, 0.67, and 0.58, respectively, for pair-wise analysis. Normal tissue contours were defined more consistently when considering overlap/distance metrics. The median radiation oncology clinical experience was 7 years. The median experience delineating on magnetic resonance imaging was 3.5 years. The GTV-to-CTV margin used was 10 mm for 6 of 7 participant institutions. One institution used 8 mm, and 3 participants (from 3 different institutions) used a margin of 5 mm.The data from this study suggests that appropriate guidelines, contouring quality assurance sessions, and training are still needed for the adoption of magnetic resonance-based treatment planning for head and neck cancers. Such efforts should play a critical role in reducing delineation variation and ensure standardization of target design across clinical practices.

Published
2022

6. Prospective comparative study of MRI including diffusion-weighted images versus FDG PET-CT for the detection of recurrent head and neck squamous cell carcinomas after (chemo)radiotherapy

Author

Driessen, Juliette P., primary, Peltenburg, Boris, additional, Philippens, Marielle E.P., additional, Huijbregts, Julia E., additional, Pameijer, Frank A., additional, de Bree, Remco, additional, Janssen, Luuk M., additional, and Terhaard, Chris H.J., additional

Published
2019
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7. The interobserver agreement in the detection of recurrent HNSCC using MRI including diffusion weighted MRI

Author

Peltenburg, Boris, primary, Driessen, Juliette P., additional, Philippens, Marielle E.P., additional, Pameijer, Frank A., additional, Castelijns, Jonas, additional, Dankbaar, Jan Willem, additional, Dorgelo, Bart, additional, Lange, Charlotte A.H., additional, Meijer, Frederick J.A., additional, Palm, Walter M., additional, Roosendaal, Stefan D., additional, Steens, Stefan C.A., additional, Verbist, Berit M., additional, Stegeman, Inge, additional, Janssen, Luuk M., additional, de Bree, Remco, additional, and Terhaard, Chris H.J., additional

Published
2018
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11. Prostate tumor delineation using multiparametric magnetic resonance imaging: Inter-observer variability and pathology validation

Author

Steenbergen, Peter, primary, Haustermans, Karin, additional, Lerut, Evelyne, additional, Oyen, Raymond, additional, De Wever, Liesbeth, additional, Van den Bergh, Laura, additional, Kerkmeijer, Linda G.W., additional, Pameijer, Frank A., additional, Veldhuis, Wouter B., additional, van der Voort van Zyp, Jochem R.N., additional, Pos, Floris J., additional, Heijmink, Stijn W., additional, Kalisvaart, Robin, additional, Teertstra, Hendrik J., additional, Dinh, Cuong V., additional, Ghobadi, Ghazaleh, additional, and van der Heide, Uulke A., additional

Published
2015
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