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Table 2 Amplitude of tumor movement (mm)

From: Stereotactic body radiotherapy for stage I lung cancer and small lung metastasis: evaluation of an immobilization system for suppression of respiratory tumor movement and preliminary results

  Craniocaudal direction (n = 55) Right-to-left direction (n = 55)
  A B C D A B C D
Range 0 – 5 1 – 25 0 – 24 0 – 25 0 – 5 0 – 10 0 – 5 0 – 5
Mean ± SD 1.4 ± 1.4 9.2 ± 7.1 7.6 ± 6.4 7.5 ± 6.4 1.3 ± 1.1 2.7 ± 1.9 2.2 ± 1.4 2.1 ± 1.2
  1. A: Breath holding.
  2. B: Free breathing on a couch.
  3. C: Free breathing covering the patient's lower body up to the abdomen with a clear plastic sheet.
  4. D: Free breathing covering the patient's lower body up to the thorax with a clear plastic sheet.