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EJNMMI Physics

Table 1 BPND–mean % bias and precision (SD of % bias) as well as correlation coefficient (r) for striatal regions when comparing Atlas-, ZTE- and MaxProb-MRAC against 68Ge-AC. Additionally, the slope and intercept of Deming regression lines are given

From: Accuracy and precision of zero-echo-time, single- and multi-atlas attenuation correction for dynamic [11C]PE2I PET-MR brain imaging

Brain region

MRAC

% bias

SD

r

Slope

Intercept

CN

Atlas

− 12.09*

5.36

0.98

0.88

− 0.01

ZTE

− 0.85

7.41

0.95

1.07

− 0.18

MaxProb

2.11

13.24

0.98

0.98

0.06

PUT

Atlas

0.52

6.04

1.00

0.97

0.07

ZTE

1.83

3.81

0.95

1.02

− 0.02

MaxProb

9.19

10.78

1.00

0.98

0.29

STR

Atlas

− 5.43

3.31

0.98

0.94

0.00

ZTE

0.30

3.95

0.97

1.05

− 0.11

MaxProb

5.48

10.62

1.00

0.99

0.17

  1. CN caudate nucleus, PUT putamen, STR striatum
  2. *p value < 0.05. Friedman test with post-hoc tests (comparison to 68Ge-AC) and Dunn’s correction
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