350 / 879
3. What to measure?
Indicator
Measure
Process
Target
Specification
limits
Complications for
H&N patients
% of patients that
need a feeding tube
10%
+5%
Overall attention
to patient care
% of patients with quality of
life assessments obtained
95%
-5%
Clinical process
efficiency
Time from simulation to
first treatment
5 working
days
+1 working day
Practice
consistency
% of replans or field
changes during treatment
10%
+5%
Patient-specific
QA
% of points passing the
3%/3mm gamma index criteria
for IMRT/VMAT plans
100%
-95%
(Pawlicki
et al
(2012))
Patient-related
Clinical practice-related
Part 1
:
Introduction to
SPC
Part 2
:
Essential
concepts to
start with SPC
Part 4
Conclusion
Part 3
:
SPC in
practice
D
EFINE
•
Choice of relevant indicators, target and specifications.
= ‘Voice of the customer’
•
Examples
:
‘Quality measures need to be objective, unambigous, clear and
quantitative before they can be used effectively. ‘
15
03/10/17