Measurements of human tolerance to horizontal rotation within an MRI scanner: Towards gantry-free radiation therapy.
J Med Imaging Radiat Oncol
; 65(1): 112-119, 2021 Feb.
Article
en En
| MEDLINE
| ID: mdl-33377303
ABSTRACT
INTRODUCTION:
Recent advances in image guidance and adaptive radiotherapy could enable gantry-free radiotherapy using patient rotation. Gantry-free radiotherapy could substantially reduce the cost of radiotherapy systems and facilities. MRI guidance complements a gantry-free approach because of its ability to visualise soft tissue deformation during rotation. A potential barrier to gantry-free radiotherapy is patient acceptability, especially when combined with MRI. This study investigates human experiences of horizontal rotation within an MRI scanner.METHODS:
Ten healthy human participants and nine participants previously treated with radiotherapy were rotated within an MRI scanner. Participants' anxiety and motion sickness was assessed before being rotated in 45-degree increments and paused, representing a multi-field intensity-modulated radiotherapy treatment. An MR image was acquired at each 45-degree angle. Following imaging, anxiety and motion sickness were re-assessed, followed by a comfort questionnaire and exit interview. The significance of the differences in anxiety and motion sickness pre- versus post-imaging was assessed using Wilcoxon signed-rank tests. Content analysis was performed on exit interview transcripts.RESULTS:
Eight of ten healthy and eight of nine patient participants completed the imaging session. Mean anxiety scores before and after imaging were 7.9/100 and 11.8/100, respectively (P = 0.26), and mean motion sickness scores were 5.3/100 and 13.7/100, respectively (P = 0.02). Most participants indicated likely acceptance of rotation if MRI were to be used in a hypothetical treatment. Physical discomfort was reported to be the biggest concern.CONCLUSIONS:
Horizontal rotation within an MRI scanner was acceptable for most (17/19) participants.Palabras clave
Texto completo:
1
Base de datos:
MEDLINE
Asunto principal:
Imagen por Resonancia Magnética
Tipo de estudio:
Guideline
Límite:
Humans
Idioma:
En
Revista:
J Med Imaging Radiat Oncol
Asunto de la revista:
DIAGNOSTICO POR IMAGEM
/
NEOPLASIAS
/
RADIOLOGIA
Año:
2021
Tipo del documento:
Article
País de afiliación:
Australia