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Table 4 Mean parotid dose in relation to reduction of salivary flow in studies with dose-volume histogram based on planning head and neck computed tomography scans

From: Feasibility of image-guided radiotherapy based on helical tomotherapy to reduce contralateral parotid dose in head and neck cancer

Study Patient No Technique to assess salivary flow Mean parotid dose Evaluation time
Teshima et al. [1] 20 Saxon test 30 Gy NS
Bussels et al. [3] 16 Scintigraphy 22.5 Gy 7 months
Roesink et al. [6] 108 Suction cup 39 Gy months
Eisbruch et al. [9] 88 Suction cup 26 Gy 12 months
Cerezo et al. [11] 16 Spitting cup 4.7 Gy (contralateral unirradiated parotid) 12 months
Munter et al. [19] 18 Scintigraphy 26 Gy 6 months
Chao et al. [20] 41 Spitting cup 30 Gy 6 months
Saarilahti et al. [21] 17 Spitting cup 25.5 Gy 12 months
  1. Gy: Gray; NS: not specified.