Application of New Posture Fixation Device Compatible with Magnetic Resonance Simulation Positioning in Head and Neck Radiotherapy.
10.3969/j.issn.1671-7104.2021.03.025
- Author:
Zhenyao HU
1
;
Guangjun LI
1
;
Sen BAI
1
Author Information
1. Department of Radiotherapy, West China Hospital, Sichuan University, Chengdu, 610041.
- Publication Type:Journal Article
- Keywords:
magnetic resonance positioning;
posture fixation device;
radiotherapy coil
- MeSH:
Humans;
Magnetic Resonance Imaging;
Magnetic Resonance Spectroscopy;
Nasopharyngeal Neoplasms;
Neck;
Posture
- From:
Chinese Journal of Medical Instrumentation
2021;45(3):349-354
- CountryChina
- Language:Chinese
-
Abstract:
OBJECTIVE:Whether the developed new type of radiotherapy auxiliary fixation device compatible with the head and neck joint coil can improve the quality of magnetic resonance images in radiotherapy and verify whether it can be applied to clinical treatment.
METHODS:The clinical trial selected patients with brain metastases and nasopharyngeal cancer patients, using thermoplastic film and head and shoulder molds for posture fixation, and treatment on the ELekta Versa accelerator. SPSS 20.0 statistical software was used to analyze the data. The measurement data were expressed by
RESULTS:Considering the influence of the outer contour of the device, the target dose meets the clinical requirements. The setting error is less than 2 mm in the three translation directions, and the rotation error is less than 2
CONCLUSIONS:There is no statistical difference between the treatment results of patients using the new type of fixation device and the conventional method. The target area threatens the organ dose, and the positioning error meets the treatment requirements.
