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Table 4 Frequency of quality control tests performed by radiographers presented by country (n = frequency; (%) = percentage)

From: Characterization of radiographers’ mammography practice in five European countries: a pilot study

 

Estonia

Finland

Norway

Portugal

Switzerland

Total

Detector stability test and flat-field phantom image

 Never

1 (13)

0

0

0

7 (11)

8 (6)

 Daily

7 (87)

37 (97)

8 (89)

10 (56)

7 (11)

69 (50)

 Weekly

0

0

1 (11)

2 (11)

49 (74)

37 (52)

 Monthly

0

0

0

2 (11)

3 (4)

5 (4)

 Quarterly or semi-annually

0

1 (3)

0

4 (22)

0

5 (4)

QC test object and full-field artefacts

 Never

4 (51)

0

6 (67)

2 (11)

5 (8)

17 (12)

 Daily

2 (25)

24 (63)

2 (22)

1 (6)

0

29 (21)

 Weekly

1 (12)

11 (29)

0

8 (44)

59 (90)

79 (57)

 Monthly

0

1 (3)

0

3 (17)

1 (1)

5 (4)

 Quarterly, semi-annually or annually

1 (12)

2 (5)

1 (11)

4 (22)

1 (1)

9 (6)

Artefacts

 Never

1 (12)

0

1 (11)

3 (18)

2 (3)

7 (5)

 Daily

1 (12)

27 (71)

1 (11)

11 (62)

25 (38)

65 (47)

 Weekly

5 (64)

6 (16)

6 (67)

1 (5)

38 (58)

56 (40)

 Monthly

0

3 (8)

0

2 (10)

1 (1)

6 (4)

 Quarterly, semi-annually or annually

1 (12)

2 (5)

1 (11)

1 (5)

0

5 (4)

Monitor QC

 Never

6 (76)

4 (11)

7 (78)

9 (50)

8 (12)

34 (25)

 Daily

0

9 (24)

1 (11)

2 (11)

5 (8)

17 (12)

 Weekly

1 (12)

13 (34)

0

4 (22)

44 (67)

62 (45)

 Monthly

0

5 (13)

0

1 (6)

4 (6)

10 (7)

 Quarterly, semi-annually or annually

1 (12)

7 (18)

1 (11)

2 (11)

5 (7)

16 (11)

Printer/laser printer

 Never

0

34 (90)

0

15 (83)

42 (64)

91 (66)

 Daily

3 (37)

1 (3)

4 (44)

2 (11)

3 (4)

13 (9)

 Weekly

4 (50)

0

5 (56)

0

11 (17)

20 (14)

 Monthly

1 (13)

1 (3)

0

0

4 (6)

6 (4)

 Quarterly, semi-annually or annually

0

2 (4)

0

1 (6)

6 (9)

9 (7)