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European Radiology Experimental

Table 2 Spearman’s correlation coefficient between the first (QC) and second (items) columns for raters individually (columns 3,4 and 5) and for all raters in the last column

From: A visual quality control scale for clinical arterial spin labeling images

QC

Item

Rater 1

Rater 2

Rater 3

All

cQC

CBF

0.85

0.78

0.60

0.75

cQC

R1

0.59

0.46

0.56

0.48

cQC

aBV

0.57

0.40

0.36

0.42

cQC

ATT

0.48

0.56

0.36

0.46

QC

Total cQC

0.80

0.74

0.60

0.70

aQC

Motion

0.70

0.56

0.65

0.62

aQC

Signal dropout

0.24

0.28

0.44

0.29

aQC

Distortion

0.21

0.25

0.22

0.22

aQC

Bright spots

0.58

0.63

0.26

0.48

  1. aBV arterial blood volume ATT arterial transit time, CBF cerebral blood flow, aQC artifact-based quality control, cQC contrast-based quality control, R1 T1 relaxation rate
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