Table 11 Distribution of cumulated effective dose for across MPI protocols.

From: Diagnostic reference level, achievable dose, and effective dose estimation in adult hybrid SPECT myocardial perfusion imaging in Institut Jantung Negara

ED

MPI protocol

Effective dose (mSv)

p-value

Mean ± SD

Median

Min

Max

EDSPECT

One-day

5.42 ± 1.33

5.16

3.32

11.72

 

Two-day

11.10 ± 3.96

12.66

2.07

17.17

 

EDCT

CTAC One-day

1.42 ± 0.78

1.32

0.57

4.53

 

CTAC Two-day

2.26 ± 0.87

2.46

0.74

3.65

 

CAC One-day

1.87 ± 0.27

1.76

1.01

3.30

 

CAC Two-day

1.94 ± 0.31

1.76

1.51

2.93

 

EDCUMULATED

One-day/CTAC

6.69 ± 1.76

6.50

4.10

11.36

< 0.001a

One-day/CAC

7.32 ± 1.37

7.04

5.20

13.48

Two-day/CTAC

10.13 ± 5.31

6.87

2.81

16.62

0.001a

Two-day/CAC

13.99 ± 3.24

14.53

5.86

19.20

  1. a – Independent t-test.