Joint segmentation and CT synthesis for MRI-only radiotherapy treatment planning - Inria - Institut national de recherche en sciences et technologies du numérique Access content directly
Conference Papers Year : 2016

Joint segmentation and CT synthesis for MRI-only radiotherapy treatment planning

Abstract

Accurate knowledge of organ location and tissue attenuation properties are the two essential components to perform radiotherapy treatment planning (RTP). Computed tomography (CT) has been the modality of choice for RTP as it easily provides electron density information. However, its low soft tissue contrast limits the accuracy of organ delineation. On the contrary, magnetic resonance (MR) provides images with excellent soft tissue contrast but its use for RTP is limited by the fact that it does not readily provide tissue attenuation information.In this work we propose a multi-atlas information propagation scheme that jointly segments the organs at risk and generates pseudo CT data from MR images. We demonstrate that the proposed framework is able to automatically generate accurate pseudo CT images and segmentations in the pelvic region, bypassing the need for CT scan for accurate RTP.

Domains

Medical Imaging

Dates and versions

hal-01827201 , version 1 (01-07-2018)

Identifiers

Cite

Ninon Burgos, Filipa Guerreiro, Jamie Mcclelland, Simeon Nill, David Dearnaley, et al.. Joint segmentation and CT synthesis for MRI-only radiotherapy treatment planning. Medical Image Computing and Computer-Assisted Intervention – MICCAI 2016, Oct 2016, Athens, Greece. pp.547--555, ⟨10.1007/978-3-319-46723-8_63⟩. ⟨hal-01827201⟩
15 View
0 Download

Altmetric

Share

Gmail Facebook X LinkedIn More