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Keywords:
Professional issues, Management, Radiographers, Digital radiography, Diagnostic procedure, Health policy and practice, Technical aspects, Quality assurance, Image verification, Education and training
Authors:
A. Mendes, A. M. Ribeiro, L. P. Ribeiro, A. F. Abrantes, R. P. P. Almeida, K. B. Azevedo, S. Rodrigues; Faro/PT
DOI:
10.1594/ecr2017/B-0827
Results
Considering 1200 exams observed,
473 were classified as non-conform (39.42%) and 727 were classified as conform (60.58%).
Considering the non-conform exams group,
the quality criteria “incomplete or incorrect image post-processing” presented the highest number of non-conformities (58,92%),
followed by “incorrect patient positioning” (35,32%) and “artefacts” (5,77%).
Chest radiograph showed the highest number of non-conformities (174).
Abdominal Radiograph
- P Chart – Abdominal Radiograph: Considering p chart to the abdominal radiograph,
the sample is located inside the SCL-LCL range so the process is under statistical control (Fig. 1).
The results present the following values: the Central Limit (44%),
the Superior Control Limit (78%) and the Lower Control Limit (11%).
- NP Chart - Abdominal Radiograph: Considering np chart to the abdominal radiograph,
the process was also considered under statistical control (Fig. 2).
The limits were: the Central Limit (8.83),
the Superior Control Limit (15.50) and the Lower Control Limit (2.17).
- C Chart - Abdominal Radiograph: The c chart for abdominal radiograph show the values within limits (Fig. 3): the Central Limit (10.42),
the Superior Control Limit (20.10) and the Lower Control Limit (0.73).
Chest Radiograph
- P Chart – Chest Radiograph: Considering p chart to the chest radiograph,
the sample is located inside the SCL-LCL range so the process is under statistical control (Fig. 4).
The results present the following values: the Central Limit (58%),
the Superior Control Limit (91%) and the Lower Control Limit (24%).
- NP Chart - Chest Radiograph: Considering np chart to the chest radiograph,
the process was also considered under statistical control (Fig. 5).
The limits were: the Central Limit (11.50),
the Superior Control Limit (18.13) and the Lower Control Limit (4.87).
- C Chart - Chest Radiograph: The c chart for chest radiograph show the values within limits (Fig. 6): the Central Limit (14.50),
the Superior Control Limit (25.92) and the Lower Control Limit (3.08).
Wrist Radiograph
- P Chart – Wrist Radiograph: Considering p chart to the wrist radiograph,
the sample is located inside the SCL-LCL range so the process is under statistical control (Fig. 7).
The results present the following values: the Central Limit (27%),
the Superior Control Limit (57%) and the Lower Control Limit (3%).
- NP Chart - Wrist Radiograph: Considering np chart to the wrist radiograph,
the process was also considered under statistical control (Fig. 8).
The limits were: the Central Limit (5.42),
the Superior Control Limit (11.38) and the Lower Control Limit (-0.55).
- C Chart - Wrist Radiograph: The c chart for wrist radiograph show the values within limits (Fig. 9): the Central Limit (14.50),
the Superior Control Limit (25.92) and the Lower Control Limit (3.08).
Ankle Radiograph
- P Chart – Ankle Radiograph: Considering p chart to the ankle radiograph,
the sample is located inside the SCL-LCL range so the process is under statistical control (Fig. 10).
The results present the following values: the Central Limit (28%),
the Superior Control Limit (58%) and the Lower Control Limit (3%).
- NP Chart - Ankle Radiograph: Considering np chart to the ankle radiograph,
only the sample 1 is located outside SCL-LCL range (Fig. 11).
The limits were: the Central Limit (5.50),
the Superior Control Limit (11.49) and the Lower Control Limit (-0.49).
- C Chart - Ankle Radiograph: The c chart for ankle radiograph show that only the sample 1 is located outside SCL-LCL range (Fig. 12): the Central Limit (6.08),
the Superior Control Limit (13.48) and the Lower Control Limit (-1.32).