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Table 2 Performed Diagnostics: (in brackets: useful / not useful / no assessment)

From: Physicians perceived usefulness of high-cost diagnostic imaging studies: results of a referral study in a German medical quality network

Area GP / Specialist Indication CT MRI useful in % (95% CI)
Cerebral (n = 61) GP Apoplexia (3) 3 (3 / 0 / 0) 0 100
  GP Cerebral Tumour (3) 1 (1 / 0 / 0) 2 (2 / 0 / 0) 100
  GP ED* (4) 1 (1 / 0 / 0) 3 (2 / 1 / 0) 75.0
  GP Suspected Disease (11) 5 (2 / 2 / 1) 6 (2 / 3 / 1) 36.4
  Neuro. Apoplexia (6) 2 (1 / 1 / 0) 4 (4 / 0 / 0) 83.3
  Neuro. Rule out tumour (27) 8 (6 / 2 / 0) 19 (18 / 1/ 0) 88.9
  Neuro. Trauma / SVT** / Hydrozephalus (3) 1 (1 /0 / 0) 2 (2 /0 / 0) 100
  Neuro. Suspected Disease (4) 1 (1 /0 / 0) 3 (1 /2 / 0) 50.0
Total   Amount (61) 22 (16 / 5 / 1) 39 (31 / 7 / 1) 77.0 (65.1–85.8)
Vertebra (n = 71) GP Cervical spine (12) 5 (2/3/0) 7 (3 /2 / 2) 41.6
  GP Lumbar spine (26) 20 (17/2/1) 6 (5 /0 / 1) 88.5
  Orthop. Cervical spine (8) 3 (3 /0 / 0) 5 (3 /2 / 0) 75.0
  Orthop. Lumbar spine (9) 6 (5 /1 / 0) 3 (2 /1 / 0) 77.8
  Neuro. Cervical spine (8) 1 (1 /0 / 0) 7 (6 /1 / 0) 87.5
  Neuro. Lumbar spine (8) 2 (2 /0 / 0) 6 (6 /0 / 0) 100
Total   Amount (71) 37 (30 / 6 / 1) 34 (25 / 6 / 3) 77.5 (66.5–85.6)
Musculoskeletal Symptoms (n = 18) GP Knee (10) 0 10 (9 / 1 / 0) 90.0
  GP Shoulder (3) 0 3 (3 / 0 / 0) 100
  GP Elbow (1) 0 1 (1 / 0 / 0) 100
  Orthop. Knee (1) 1 (1 / 0 / 0) 0 100
  Orthop. Shoulder (2) 0 2 (2 / 0 / 0) 100
  Orthop. Upper ankle (1) 0 1 (1 / 0 / 0) 100
Total   Amount (18) 1 (1 / 0 / 0) 17 (16 / 1 / 0) 94.4 (74.2–99.0)
Area Indication CT MRI useful in % (95% CI)
Internal (n = 27) Abdomina l complaints (15) 15 (10 / 5 / 0) 0 66.7
  Pulmonary (7) 6 (5 / 0 / 1) 1 (1 / 0 / 0) 85.7
  Urogenital (2) 2 (2 / 0 / 0) 0 100
  Other tumours (3) 2 (1 / 1 / 0) 1 (1 / 0 / 0) 66.7
Total Amount (27) 25 (18 / 6 / 1) 2 (2 / 0 / 0) 74.1 (55.3–86.8)
Others (n = 4) Chron. Sinusitis 1 (1 / 0 / 0) 0 100
  Lymphhaemangioma axillae 0 1 (1 / 0 / 0) 100
  Pain after Appendectomy 1 (1 / 0 / 0) 0 100
  Thoracic pain of unknown origin 1 (1 / 0 / 0) 0 100
Total Amount(4) 3 (3 / 0 / 0) 1 (1 / 0 / 0) 100
Area Indication Intracardiac catheter MRI useful in % (95% CI)
Cardiac (n = 49) Coronary artery disease 48 (39 / 6 / 3) 0 81,3 (68.1–89.8)
  Cardiac effusion 0 1 (1 / 0 / 0) 100
  1. * ED = Encephalitits disseminate; ** SVT = sinus vein thrombosis GP = general practitioner, Neuro. = neurologist, Orthop. = orthopaedic specialist
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