Quality Management 2017

S TANDARDIZE

5. IMRT QC results (portal dosimetry) monitored with SPC

- Head-and-neck treatments -

pecial cause: TPS : changement of algo. version

ORL P1 IUPESM Nouvelles limites APRES chgt algo

N ° contrôle

100

• In daily practice at ICL :

99

 Control charts

98

97

 Process under control < 5% points out of limits

96

98 Moving-Range (%) Individual value. (%) EWMA (%) 99 100 101 0 95 0 Moyenne parpatient du%de points ayantun gamma < 1 0,4 0,8 1,2 1,6 2,0 2,4 2,8

ORL P1 IUPESM Nouvelles limites APRES chgt algo

50

100

150

200

250

 Performance indicators

Date

Stable ou superior

1

Process under control and statistically capable

ORL P1 IUPESMNouvelles limites APRES chgt algo

50

100

150

200

250

Moyenneparpatientdu%depointsayantungamma<

Date

 S pecial cause identified

•  dispersion •  mean

 Performance indicators 

 New limits

0,0

03/10/17

42

0

50

100

150

200

250