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Statistical process control analysis for patient quality assurance of intensity modulated radiation therapy

Title
Statistical process control analysis for patient quality assurance of intensity modulated radiation therapy
Authors
Lee, RenaKim, KyuboCho, SamjuLim, SangwookLee, SukShim, Jang BoHuh, Hyun DoLee, Sang HoonAhn, Sohyun
Ewha Authors
이레나김규보
SCOPUS Author ID
이레나scopus; 김규보scopus
Issue Date
2017
Journal Title
JOURNAL OF THE KOREAN PHYSICAL SOCIETY
ISSN
0374-4884JCR Link1976-8524JCR Link
Citation
vol. 71, no. 10, pp. 717 - 721
Keywords
Statistical process controlProcess capability indexGamma indexGamma pass rateIMRT/VMAT QA
Publisher
KOREAN PHYSICAL SOC
Indexed
SCI; SCIE; SCOPUS; KCI WOS scopus
Abstract
This study applied statistical process control to set and verify the quality assurances (QA) tolerance standard for our hospital's characteristics with the criteria standards that are applied to all the treatment sites with this analysis. Gamma test factor of delivery quality assurances (DQA) was based on 3%/3 mm. Head and neck, breast, prostate cases of intensity modulated radiation therapy (IMRT) or volumetric arc radiation therapy (VMAT) were selected for the analysis of the QA treatment sites. The numbers of data used in the analysis were 73 and 68 for head and neck patients. Prostate and breast were 49 and 152 by MapCHECK and ArcCHECK respectively. C (p) value of head and neck and prostate QA were above 1.0, C (pml) is 1.53 and 1.71 respectively, which is close to the target value of 100%. C (pml) value of breast (IMRT) was 1.67, data values are close to the target value of 95%. But value of was 0.90, which means that the data values are widely distributed. C (p) and C (pml) of breast VMAT QA were respectively 1.07 and 2.10. This suggests that the VMAT QA has better process capability than the IMRT QA. Consequently, we should pay more attention to planning and QA before treatment for breast Radiotherapy.
DOI
10.3938/jkps.71.608
Appears in Collections:
의과대학 > 의학과 > Journal papers
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