I-MR Chart — Stroke Door-to-Needle Time
Twenty-four consecutive thrombolysis cases plotted as individuals and moving ranges, where a pre-alert and direct-to-CT pathway change at case 17 produces the run below the centre line that rule 6 catches.
Make it your own.
title "Door-to-needle time — hyperacute stroke unit"
chart i-mr
unit min
# Every thrombolysed patient in order of arrival; individuals chart because
# each case is its own subgroup and rational subgrouping is impossible.
value 53
value 31
value 56
value 44
value 59
value 51
value 42
value 43
value 60
value 50
value 57
value 59
value 50
value 41
value 63
value 51
# Ambulance pre-alert plus direct-to-CT pathway introduced from case 17.
value 39
value 41
value 34
value 39
value 34
value 34
value 33
value 43