MRI sequence optimisation methods to identify cranial nerve course for radiotherapy planning.

ABSTRACT:

Introduction

Magnetic resonance imaging (MRI) is being increasingly used to improve radiation therapy planning by allowing visualisation of organs at risk that cannot be well-defined on computed tomography (CT). Diagnostic sequences are increasingly being adapted for radiation therapy planning, such as the use of heavily T2-weighted 3D SPACE (Sampling Perfection with Application optimised Contrasts using different flip angle Evolution) sequence for cranial nerve identification in head and neck tumour treatment planning.

Methods

A 3D isotropic T2 SPACE sequence used for cranial nerve identification was adapted for radiation therapy purposes. Distortion was minimised using a spin-echo-based sequence, 3D distortion correction, isocentre scanning and an increased readout bandwid

SUBMITTER: O'Connor LM 

PROVIDER: S-EPMC10715361 | biostudies-literature | 2023 Jul

REPOSITORIES: biostudies-literature