Zobrazeno 1 - 10
of 133
pro vyhledávání: '"Bessieres, P."'
Autor:
Blanche Texier, Cédric Hémon, Adélie Queffélec, Jason Dowling, Igor Bessieres, Peter Greer, Oscar Acosta, Adrien Boue-Rafle, Renaud de Crevoisier, Caroline Lafond, Joël Castelli, Anaïs Barateau, Jean-Claude Nunes
Publikováno v:
Physics and Imaging in Radiation Oncology, Vol 31, Iss , Pp 100612- (2024)
Background and purpose: Magnetic resonance imaging (MRI)-to-computed tomography (CT) synthesis is essential in MRI-only radiotherapy workflows, particularly through deep learning techniques known for their accuracy. However, current supervised method
Externí odkaz:
https://doaj.org/article/2df01f73d36c41818e47ef3d0b41267e
Autor:
You Zhou, Alain Lalande, Cédric Chevalier, Jérémy Baude, Léone Aubignac, Julien Boudet, Igor Bessieres
Publikováno v:
Frontiers in Oncology, Vol 13 (2024)
IntroductionLinear accelerator (linac) incorporating a magnetic resonance (MR) imaging device providing enhanced soft tissue contrast is particularly suited for abdominal radiation therapy. In particular, accurate segmentation for abdominal tumors an
Externí odkaz:
https://doaj.org/article/fa5d08f88f8e46519c2b3f66fd51f226
We consider open, oriented 3-manifolds which are infinite connected sums of closed 3-manifolds. We introduce some topological invariants for these manifolds and obtain a classification in the case where there are only finitely many summands up to dif
Externí odkaz:
http://arxiv.org/abs/2001.11883
Autor:
Safaa Tahri, Blanche Texier, Jean-Claude Nunes, Cédric Hemon, Pauline Lekieffre, Emma Collot, Hilda Chourak, Jennifer Le Guevelou, Peter Greer, Jason Dowling, Oscar Acosta, Igor Bessieres, Louis Marage, Adrien Boue-Rafle, Renaud De Crevoisier, Caroline Lafond, Anaïs Barateau
Publikováno v:
Frontiers in Oncology, Vol 13 (2023)
IntroductionFor radiotherapy based solely on magnetic resonance imaging (MRI), generating synthetic computed tomography scans (sCT) from MRI is essential for dose calculation. The use of deep learning (DL) methods to generate sCT from MRI has shown e
Externí odkaz:
https://doaj.org/article/a1d51ded1429495bb38f6ed943c64561
Autor:
Blanche Texier, Cédric Hémon, Pauline Lekieffre, Emma Collot, Safaa Tahri, Hilda Chourak, Jason Dowling, Peter Greer, Igor Bessieres, Oscar Acosta, Adrien Boue-Rafle, Jennifer Le Guevelou, Renaud de Crevoisier, Caroline Lafond, Joël Castelli, Anaïs Barateau, Jean-Claude Nunes
Publikováno v:
Physics and Imaging in Radiation Oncology, Vol 28, Iss , Pp 100511- (2023)
Background and Purpose: Addressing the need for accurate dose calculation in MRI-only radiotherapy, the generation of synthetic Computed Tomography (sCT) from MRI has emerged. Deep learning (DL) techniques, have shown promising results in achieving h
Externí odkaz:
https://doaj.org/article/93f14f1c64e24cf186ea07d7a70d3cb3
We prove that the moduli space of complete Riemannian metrics of bounded geometry and uniformly positive scalar curvature on an orientable 3-manifold is path-connected. This generalizes the main result of the fourth author [Mar12] in the compact case
Externí odkaz:
http://arxiv.org/abs/1711.02457
Autor:
Emmanouil Koutoulakis, Louis Marage, Emmanouil Markodimitrakis, Leone Aubignac, Catherine Jenny, Igor Bessieres, Alain Lalande
Publikováno v:
Algorithms, Vol 16, Iss 11, p 521 (2023)
MR-Linac is a recent device combining a linear accelerator with an MRI scanner. The improved soft tissue contrast of MR images is used for optimum delineation of tumors or organs at risk (OARs) and precise treatment delivery. Automatic segmentation o
Externí odkaz:
https://doaj.org/article/346499f0e1b84f6892d321ac567a2df3
Autor:
Adeline Pêtre, MD, Magali Quivrin, MD, Nathalie Briot, BS, Jihane Boustani, MD, Etienne Martin, MD, Igor Bessieres, MS, Alexandre Cochet, PhD, Gilles Créhange, PhD
Publikováno v:
Advances in Radiation Oncology, Vol 8, Iss 1, Pp 101040- (2023)
Purpose: The optimal salvage pelvic treatment for nodal recurrences in prostate cancer is not yet clearly defined. We aimed to compare outcomes of salvage involved-field radiation therapy (s-IFRT) and salvage extended-field radiation therapy (s-EFRT)
Externí odkaz:
https://doaj.org/article/8355210a543a4e16b9b82b0bdaabbae1
Publikováno v:
Commentarii Mathematici Helvetici (2014) ??
We study the long time behaviour of Ricci flow with bubbling-off on a possibly noncompact $3$-manifold of finite volume whose universal cover has bounded geometry. As an application, we give a Ricci flow proof of Thurston's hyperbolisation theorem fo
Externí odkaz:
http://arxiv.org/abs/1211.4103
Publikováno v:
Geom. Topol. 15 (2011) 927-975
We show that an orientable 3-dimensional manifold M admits a complete riemannian metric of bounded geometry and uniformly pos- itive scalar curvature if and only if there exists a finite collection F of spherical space-forms such that M is a (possibl
Externí odkaz:
http://arxiv.org/abs/1001.1458