Retrospective study on performance of constancy check device in Linac beam monitoring using Statistical Process Control.
Ishikawa diagram
Quality assurance
Radiotherapy
Shewhart chart
Statistical process control
Journal
Reports of practical oncology and radiotherapy : journal of Greatpoland Cancer Center in Poznan and Polish Society of Radiation Oncology
ISSN: 1507-1367
Titre abrégé: Rep Pract Oncol Radiother
Pays: Poland
ID NLM: 100885761
Informations de publication
Date de publication:
Historique:
received:
23
04
2019
revised:
24
09
2019
accepted:
02
12
2019
entrez:
4
7
2020
pubmed:
4
7
2020
medline:
4
7
2020
Statut:
ppublish
Résumé
To examine the application of Statistical Process Control (SPC) and Ishikawa diagrams for retrospective evaluation of machine Quality Assurance (QA) performance in radiotherapy. SPC is a popular method for supplementing the performance of QA techniques in healthcare. This work investigates the applicability of SPC techniques and Ishikawa charts in machine QA. SPC has been applied to recommend QA limits on the particular beam parameters using the QUICKCHECK Shewhart charts and EWMA charts applied could detect loss in control in one variable in the 6 MV beams and in all four variables in 10 MV beams. CUSUM charts detected offsets in the readings. The Ishikawa chart exhaustively included the possible errors that lead to loss of control. SPC is proven to be effective for detection of loss in control in machine QA. The Ishikawa chart provides the set of probable root causes of machine error useful while troubleshooting.
Sections du résumé
AIM
OBJECTIVE
To examine the application of Statistical Process Control (SPC) and Ishikawa diagrams for retrospective evaluation of machine Quality Assurance (QA) performance in radiotherapy.
BACKGROUND
BACKGROUND
SPC is a popular method for supplementing the performance of QA techniques in healthcare. This work investigates the applicability of SPC techniques and Ishikawa charts in machine QA.
MATERIALS AND METHODS
METHODS
SPC has been applied to recommend QA limits on the particular beam parameters using the QUICKCHECK
RESULTS
RESULTS
Shewhart charts and EWMA charts applied could detect loss in control in one variable in the 6 MV beams and in all four variables in 10 MV beams. CUSUM charts detected offsets in the readings. The Ishikawa chart exhaustively included the possible errors that lead to loss of control.
CONCLUSION
CONCLUSIONS
SPC is proven to be effective for detection of loss in control in machine QA. The Ishikawa chart provides the set of probable root causes of machine error useful while troubleshooting.
Identifiants
pubmed: 32617079
doi: 10.1016/j.rpor.2019.12.004
pii: S1507-1367(19)30102-6
pmc: PMC7315042
doi:
Types de publication
Journal Article
Langues
eng
Pagination
91-99Informations de copyright
© 2019 Greater Poland Cancer Centre. Published by Elsevier B.V. All rights reserved.
Références
Radiother Oncol. 2008 Jan;86(1):86-92
pubmed: 18054102
J Appl Clin Med Phys. 2019 Mar;20(3):71-80
pubmed: 30786139
J BUON. 2014 Jan-Mar;19(1):47-52
pubmed: 24659642
Med Phys. 2008 Oct;35(10):4417-25
pubmed: 18975688
Phys Med Biol. 2001 Jul;46(7):1975-84
pubmed: 11474938
Phys Med. 2016 Nov;32(11):1479-1487
pubmed: 27839928
Radiother Oncol. 2018 May;127(2):326-331
pubmed: 29523411
Med Phys. 2009 Apr;36(4):1275-85
pubmed: 19472636
Med Phys. 2005 Sep;32(9):2777-86
pubmed: 16266091
Med Phys. 2007 May;34(5):1529-34
pubmed: 17555234
Med Phys. 1994 Apr;21(4):581-618
pubmed: 8058027
J Appl Clin Med Phys. 2013 Jan 07;14(1):4032
pubmed: 23318390
Phys Med. 2017 Jun;38:105-110
pubmed: 28610690
Phys Med Biol. 2013 Oct 7;58(19):7025-37
pubmed: 24043363
Med Phys. 2004 Jul;31(7):2119-20
pubmed: 15305465
J Radiat Res. 2013 May;54(3):546-52
pubmed: 23220776
Int J Radiat Oncol Biol Phys. 2008;71(1 Suppl):S210-4
pubmed: 18406931
Risk Anal. 2007 Dec;27(6):1395-410
pubmed: 18093042
Med Phys. 2009 Sep;36(9):4197-212
pubmed: 19810494
Radiother Oncol. 2000 Jul;56(1):109-15
pubmed: 10869761
Radiother Oncol. 2018 May;127(2):183-189
pubmed: 29395288
Tech Innov Patient Support Radiat Oncol. 2018 May 29;7:6-10
pubmed: 32095575