Hermeneutic phenomenological interpretations of patients with head and neck neoplasm experiences living with radiation-induced xerostomia: The price to pay?

2014 ◽  
Vol 18 (5) ◽  
pp. 512-520 ◽  
Author(s):  
Andreas Charalambous
Keyword(s):  
Head And Neck ◽  
Head And Neck Neoplasm ◽  
Hermeneutic Phenomenological ◽  
Radiation Induced

Automatic Parotid Gland Segmentation in MVCT Using Deep Convolutional Neural Networks

2022 ◽  
Vol 3 (2) ◽  
pp. 1-15
Author(s):  
Junqian Zhang ◽  
Yingming Sun ◽  
Hongen Liao ◽  
Jian Zhu ◽  
Yuan Zhang
Keyword(s):  
Parotid Gland ◽  
Head And Neck ◽  
Helical Tomotherapy ◽  
Radiation Treatment ◽  
Automatic Segmentation ◽  
Parotid Glands ◽  
Deep Convolutional Neural Networks ◽  
Megavoltage Computed Tomography ◽  
Radiation Induced ◽  
Segmentation Models

Radiation-induced xerostomia, as a major problem in radiation treatment of the head and neck cancer, is mainly due to the overdose irradiation injury to the parotid glands. Helical Tomotherapy-based megavoltage computed tomography (MVCT) imaging during the Tomotherapy treatment can be applied to monitor the successive variations in the parotid glands. While manual segmentation is time consuming, laborious, and subjective, automatic segmentation is quite challenging due to the complicated anatomical environment of head and neck as well as noises in MVCT images. In this article, we propose a localization-refinement scheme to segment the parotid gland in MVCT. After data pre-processing we use mask region convolutional neural network (Mask R-CNN) in the localization stage after data pre-processing, and design a modified U-Net in the following fine segmentation stage. To the best of our knowledge, this study is a pioneering work of deep learning on MVCT segmentation. Comprehensive experiments based on different data distribution of head and neck MVCTs and different segmentation models have demonstrated the superiority of our approach in terms of accuracy, effectiveness, flexibility, and practicability. Our method can be adopted as a powerful tool for radiation-induced injury studies, where accurate organ segmentation is crucial.

Oral Sequelae of Head and Neck Radiotherapy

2003 ◽  
Vol 14 (3) ◽  
pp. 199-212 ◽  
Author(s):  
A. Vissink ◽  
J. Jansma ◽  
F.K.L. Spijkervet ◽  
F.R. Burlage ◽  
R.P. Coppes
Keyword(s):  
Head And Neck ◽  
Neck Region ◽  
Normal Tissues ◽  
Radiation Caries ◽  
Temporomandibular Joints ◽  
Clinical Consequences ◽  
Radiation Induced ◽  
Heavy Burden ◽  
Effects Of Radiation ◽  
Induced Changes

In addition to anti-tumor effects, ionizing radiation causes damage in normal tissues located in the radiation portals. Oral complications of radiotherapy in the head and neck region are the result of the deleterious effects of radiation on, e.g., salivary glands, oral mucosa, bone, dentition, masticatory musculature, and temporomandibular joints. The clinical consequences of radiotherapy include mucositis, hyposalivation, taste loss, osteoradionecrosis, radiation caries, and trismus. Mucositis and taste loss are reversible consequences that usually subside early post-irradiation, while hyposalivation is normally irreversible. Furthermore, the risk of developing radiation caries and osteoradionecrosis is a life-long threat. All these consequences form a heavy burden for the patients and have a tremendous impact on their quality of life during and after radiotherapy. In this review, the radiation-induced changes in healthy oral tissues and the resulting clinical consequences are discussed.

scholarly journals Risk factors for radiation-induced dental caries in patients with head and neck cancer

2017 ◽  
Vol 2 (3) ◽  
Author(s):  
Sakiko Soutome ◽  
Madoka Funahara ◽  
Saki Hayashida ◽  
Kazutaka Nakamura ◽  
Masahiro Umeda
Keyword(s):  
Risk Factors ◽  
Head And Neck Cancer ◽  
Dental Caries ◽  
Head And Neck ◽  
Neck Cancer ◽  
Radiation Induced
Sign in / Sign up

Export Citation Format

Share Document