Relevant reduction effect with a modified thermoplastic mask of rotational error for glottic cancer in IMRT
| Autor: | Kwang Hwan Cho, Mi Ryeong Ryu, Jae Hong Jung, Yong Ho Kim, Tae Suk Suh, Joo-Young Jung, Sun Hyun Bae, Bo-Young Choe, Seong Kwon Moon |
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| Rok vydání: | 2017 |
| Předmět: |
medicine.medical_specialty
Reproducibility Glottis Correlation coefficient business.industry medicine.medical_treatment General Physics and Astronomy Tomotherapy 030218 nuclear medicine & medical imaging Radiation therapy 03 medical and health sciences 0302 clinical medicine medicine.anatomical_structure 030220 oncology & carcinogenesis Statistical significance Linear regression medicine Medical physics Nuclear medicine business Contact area Mathematics |
| Zdroj: | Journal of the Korean Physical Society. 70:308-316 |
| ISSN: | 1976-8524 0374-4884 |
| DOI: | 10.3938/jkps.70.308 |
| Popis: | The purpose of this study was to analyze the glottis rotational error (GRE) by using a thermoplastic mask for patients with the glottic cancer undergoing intensity-modulated radiation therapy (IMRT). We selected 20 patients with glottic cancer who had received IMRT by using the tomotherapy. The image modalities with both kilovoltage computed tomography (planning kVCT) and megavoltage CT (daily MVCT) images were used for evaluating the error. Six anatomical landmarks in the image were defined to evaluate a correlation between the absolute GRE (°) and the length of contact with the underlying skin of the patient by the mask (mask, mm). We also statistically analyzed the results by using the Pearson’s correlation coefficient and a linear regression analysis (P |
| Databáze: | OpenAIRE |
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