Examinations and Projection

Hospita A (lFF )

Hospital B (HGB)

Chest PA

ESD (mGy)

Mean

0.20

0.10

SD

0.07

0.03

CV (%)

5.0

2.0

Minimum

0.07

0.03

First Quartile

0.13

0.08

Third Quartile

0.24

0.12

Maximum

0.47

0.29

Median

0.18

0.09

Sample Size

61

215

Effective Dose (mSv)

0.02

0.01

Chest LAT

ESD (mGy )

Mean

0.47

0.28

SD

0.25

0.15

CV (%)

7.1

5.7

Minimum

0.07

0.02

First Quartile

0.21

0.19

Third Quartile

0.66

0.30

Maximum

1.33

0.91

Median

0.45

0.25

Sample Size

56

88

Effective Dose (mSv)

0.04

0.03

Skull AP

ESD (mGy)

Mean

1.25

0.66

SD

0.41

0.31

CV(%)

8.7

16.6

Minimum

0.23

0.33

First Quartile

0.83

0.40

Third Quartile

1.47

0.56

Maximum

2.47

1.77

Median

0.40

0.52

Sample Size

14

8

Effective Dose (mSv)

0.10

0.06

Lumbar Spine AP

ESD (mGy)

Mean

1.61

2.47

SD

0.74

1.24

CV (%)

14.5

2.2

Minimum

0.14

0.29

First Quartile

0.82

1.42

Third Quartile

2.08

3.36

Maximum

3.06

6.29

Median

0.71

2.21

Sample Size

10

57

Effective Dose (mSv)

0.15

0.26