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Table 2 Mean number of diagnostic imaging studies received per person year, years 5–15 after diagnosis/referent dates, stratified by imaging modality and malignancy type

From: Patterns of diagnostic imaging and associated radiation exposure among long-term survivors of young adult cancer: a population-based cohort study

  CT Plain Radiography Nuclear Medicine MRI Ultrasound
Malignancy Type Survivors Controls Survivors Controls Survivors Controls Survivors Controls Survivors Controls
All Malignancies 0.30 0.08 1.02 0.63 0.12 0.06 0.09 0.04 0.65 0.47
Thyroid 0.15 0.08 0.80 0.62 0.12 0.06 0.06 0.04 0.87 0.57
Melanoma 0.17 0.07 0.67 0.57 0.06 0.06 0.06 0.04 0.50 0.43
Gynecologica 0.21 0.09 0.87 0.71 0.08 0.07 0.05 0.04 0.71 0.58
Bone & Soft-tissue 0.23 0.07 1.00 0.48 0.09 0.04 0.11 0.03 0.52 0.41
Head & Neck 0.25 0.09 0.76 0.53 0.09 0.07 0.13 0.03 0.42 0.37
Brain 0.26 0.08 0.58 0.50 0.06 0.05 0.65 0.03 0.39 0.84
Breast 0.32 0.10 1.70 0.84 0.22 0.08 0.10 0.04 0.85 0.59
Colorectal 0.33 0.08 0.87 0.62 0.09 0.07 0.05 0.04 0.64 0.42
Chest & Lung 0.33 0.10 1.13 0.60 0.09 0.06 0.04 0.03 0.43 0.41
Leukemia 0.34 0.07 0.91 0.49 0.09 0.06 0.06 0.04 0.60 0.73
Urologic 0.34 0.09 0.99 0.55 0.14 0.07 0.08 0.04 0.80 0.38
Testicular 0.40 0.07 0.68 0.34 0.06 0.04 0.03 0.03 0.29 0.20
HL 0.45 0.07 0.88 0.41 0.09 0.04 0.06 0.03 0.49 0.37
Upper GI 0.45 0.09 0.80 0.58 0.11 0.08 0.07 0.04 0.64 0.43
NHL 0.73 0.09 0.90 0.54 0.11 0.06 0.07 0.04 0.56 0.41
  1. aIncludes cervical, uterine and ovarian malignancies
  2. Abbreviations: CT, computed tomography; MRI, magnetic resonance imaging; HL, Hodgkin lymphoma; GI, gastrointestinal; NHL, non-Hodgkin lymphoma