Low Statistics Reconstruction of the Compton Camera Point Spread Function in 3D Prompt- \gamma Imaging of Ion Beam Therapy
| العنوان: | Low Statistics Reconstruction of the Compton Camera Point Spread Function in 3D Prompt- \gamma Imaging of Ion Beam Therapy |
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| المؤلفون: | Nicolas Freud, Denis Dauvergne, M.-H. Richard, Jean Michel Létang, J.-L. Ley, X. Lojacono, Etienne Testa, Rémy Prost, Voichita Maxim, Cédric Ray |
| المساهمون: | Imagerie Tomographique et Radiothérapie, Centre de Recherche en Acquisition et Traitement de l'Image pour la Santé (CREATIS), Université Jean Monnet [Saint-Étienne] (UJM)-Hospices Civils de Lyon (HCL)-Institut National des Sciences Appliquées de Lyon (INSA Lyon), Institut National des Sciences Appliquées (INSA)-Université de Lyon-Institut National des Sciences Appliquées (INSA)-Université de Lyon-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Centre National de la Recherche Scientifique (CNRS)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Jean Monnet [Saint-Étienne] (UJM)-Hospices Civils de Lyon (HCL)-Institut National des Sciences Appliquées de Lyon (INSA Lyon), Université de Lyon-Centre National de la Recherche Scientifique (CNRS)-Institut National de la Santé et de la Recherche Médicale (INSERM), Institut de Physique Nucléaire de Lyon (IPNL), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Images et Modèles |
| المصدر: | IEEE Transactions on Nuclear Science IEEE Transactions on Nuclear Science, Institute of Electrical and Electronics Engineers, 2013, 60 (5), pp.3355-3363. ⟨10.1109/TNS.2013.2275200⟩ |
| بيانات النشر: | HAL CCSD, 2013. |
| سنة النشر: | 2013 |
| مصطلحات موضوعية: | Point spread function, Physics, Nuclear and High Energy Physics, Photon, 010308 nuclear & particles physics, business.industry, Point source, Detector, Physics::Medical Physics, ComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISION, Iterative reconstruction, 01 natural sciences, Photon counting, 030218 nuclear medicine & medical imaging, 03 medical and health sciences, 0302 clinical medicine, Optics, Nuclear Energy and Engineering, Optical transfer function, 0103 physical sciences, Statistics, Electrical and Electronic Engineering, business, [SPI.SIGNAL]Engineering Sciences [physics]/Signal and Image processing, Beam (structure) |
| الوصف: | International audience; The Compton camera is a relevant imaging device for the detection of prompt photons produced by nuclear fragmentation in hadrontherapy. It may allow an improvement in detection efficiency compared to a standard gamma-camera but requires more sophisticated image reconstruction techniques. In this work, we simulate low statistics acquisitions from a point source having a broad energy spectrum compatible with hadrontherapy. We then reconstruct the image of the source with a recently developed filtered backprojection algorithm, a line-cone approach and an iterative List Mode Maximum Likelihood Expectation Maximization algorithm. Simulated data come from a Compton camera prototype designed for hadrontherapy online monitoring. Results indicate that the achievable resolution in directions parallel to the detector, that may include the beam direction, is compatible with the quality control requirements. With the prototype under study, the reconstructed image is elongated in the direction orthogonal to the detector. However this direction is of less interest in hadrontherapy where the first requirement is to determine the penetration depth of the beam in the patient. Additionally, the resolution may be recovered using a second camera. |
| اللغة: | English |
| تدمد: | 0018-9499 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::730d42c11a52b8dafd81e9fd6bdd1a3b https://hal.archives-ouvertes.fr/hal-00872700 |
| حقوق: | CLOSED |
| رقم الأكسشن: | edsair.doi.dedup.....730d42c11a52b8dafd81e9fd6bdd1a3b |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 00189499 |
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