Quality Management 2017
S TANDARDIZE
5. IMRT QC results (portal dosimetry) monitored with SPC
- Head-and-neck treatments -
ORL P1 IUPESM N ° contrôle
100
• In daily practice at ICL :
99
98
Index particularities
97
96
Non normal distrib. risk 0.27% Physical limit at 100 % Lower Spec. Lim. only Pp Ppk, Ppm:
95
98 Moving-Range (%) Individual value. (%) EWMA (%) 99 100 101 0 0,4 0,8 1,2 1,6 2,0 2,4 2,8 0 Moyenneparpatient du%depointsayantun gamma<1 Ppk = 1.48 Ppm = 2.45 LSL LSL 50 50
ORL P1 IUPESM 100
150
200
250
Date
1
Process Capability of Capa pat 1 à 50
ORL P1 IUPESM Target = 100% = max Target
M. Pillet et al. Quality Engineering (1997)
Process Data
Potential (Within) Capability
100
150
200
250
Moyenne par patient du %de points ayant un gamma < 95
SL
Cp * CPL 2,16 CPU * Cpk 2,16
arget
100
SL * ample Mean 99,289 ample N 250 tDev(Within) 0,660528 tDev(Overall) 0,966656
Date
Pp * PPL 1,48 PPU * Ppk 1,48 Cpm 1,39 Overall Capability
100 99 98 97 96 95 94 93
PPM < LSL 8000,00 PPM > USL * PPM Total 8000,00 bserved Performance
0,0 PPM < LSL 0,00 PPM > USL * PPM Total 0,00 Exp. Within Performance
PPM < LSL 4,56 PPM > USL * PPM Total 4,56 Exp. Overall Performance
03/10/17
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0
50
100
150
200
250
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