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Table 3 Dosimetric parameters of OARs planned by three radiation treatment techniques

From: Comparative analysis of dosimetric parameters of three different radiation techniques for patients with Graves’ ophthalmopathy treated with retro-orbital irradiation

Parameters (mean[range], Gy)

LOF

3DCRT

IMRT

Left globe

   

 Minimum

1.16 [0–6.64]

2.88 [0.59-4.35]

3.17 [1.23-9.98]

 Maximum

10.56 [10.47-10.74]

10.57 [10.48-10.69]

10.57 [10.34-11.03]

 Mean

7.53 [5.60-10.10]

9.08 [8.26-9.53]

8.55 [7.54-10.32]**

 Median

8.33 [5.80-10.23]

9.96 [9.19-10.64]

9.26 [8.15-10.30]**

 D05

10.39 [10.15-10.53]

10.47 [10.29-10.61]

10.34 [10.20-10.53]*

 D01

9.48 [0.44-10.66]

10.00 [5.30-10.65]

10.44 [10.27-10.73]

Right globe

   

 Minimum

1.48 [0.21-7.31]

3.35 [1.95-4.57]

2.27 [0.55-3.93]**

 Maximum

10.55 [10.45-10.74]

10.55[10.46-10.64]

10.51 [10.37-10.89]

 Mean

7.66 [5.98-10.06]

9.09 [8.41-9.74]

8.37 [7.27-9.09]**

 Median

8.51 [6.35-10.16]

9.86 [9.29-10.29]

9.23 [7.84-9.93]*

 D05

10.37 [10.19-10.51]

10.44 [10.27-10.55]

10.31 [10.22-10.55]*

 D01

10.47 [10.31-10.65]

10.50 [10.37-10.59]

10.40 [10.27-10.71]

Left lens

   

 Minimum

1.91 [0.43-8.23]

4.51 [3.82-4.88]

3.06 [1.86-4.39]**

 Maximum

4.93 [1.92-10.04]

7.47 [7.13-8.20]

5.67 [3.82-7.64]**

 Mean

3.12 [0.88-9.65]

5.71 [5.33-6.25]

4.14 [2.62-5.60]**

 Median

3.05 [0.85-9.84]

5.69 [5.18-6.20]

4.09 [2.46-5.55]**

 D05

4.26 [1.47-10.03]

6.87 [6.58-7.33]

5.15 [3.53-7.15]*

 D01

4.59 [1.91-10.04]

7.20 [6.89-7.77]

5.43 [3.64-7.44]**

Right lens

   

 Minimum

2.01 [0.39-8.22]

4.52 [3.70-5.14]

3.05 [1.86-4.32]**

 Maximum

4.94 [2.18-9.91]

7.41 [6.68-7.93]

5.59 [3.79-7.78]*

 Mean

3.24 [1.05-9.49]

5.77 [5.20-6.42]

4.12 [2.57-5.46]**

 Median

3.13 [0.91-9.49]

5.74 [5.15-6.45]

4.07 [2.48-5.45]**

 D05

4.45 [2.15-9.83]

6.90 [6.26-7.38]

4.93 [3.37-7.03]*

 D01

4.76 [2.17-9.89]

7.21 [6.54-7.71]

5.39 [3.57-7.53]*

Left optic nerve

   

 Minimum

9.68 [9.24-10.24]

9.88 [9.17-10.24]

9.99 [9.76-10.16]#

 Maximum

10.51 [10.41-10.59]

10.51 [10.46-10.55]

10.42 [10.22-10.57]#

 Mean

10.29 [10.09-10.43]

10.33 [10.23-10.39]

10.25 [10.10-10.36]

 Median

10.32 [10.11-10.43]

10.34 [10.27-10.40]

10.25 [10.11-10.38]*

 D05

10.46 [10.30-10.55]

10.45 [10.38-10.51]

10.35 [10.17-10.49]*,#

 D01

10.49 [10.36-10.51]

10.48 [10.41-10.52]

10.38 [10.17-10.53]#

Right optic nerve

   

 Minimum

9.82 [9.25-10.31]

10.04 [9.83-10.28]

10.08 [9.93-10.22]

 Maximum

10.51 [10.35-10.62]

10.51 [10.43-10.58]

10.49 [10.27-10.76]

 Mean

10.31 [10.14-10.46]

10.35 [10.24-10.40]

10.26 [10.08-10.36]*

 Median

10.34 [10.20-10.45]

10.37 [10.27-10.46]

10.26 [10.08-10.36]*,#

 D05

10.46 [10.30-10.57]

10.47 [10.38-10.54]

10.39 [10.18-10.53]#

 D01

10.49 [10.32-10.60]

10.49 [10.41-10.57]

10.44 [10.22-10.67]

Optic chiasm

   

 Minimum

0.28 [0.09-0.68]

2.30 [1.84-3.01]

3.38 [0.99-9.76]##

 Maximum

6.72 [0.41-9.84]

8.30 [5.13-9.65]

8.32 [3.60-10.35]

 Mean

1.57 [0.16-3.49]

3.94 [2.67-5.64]

4.84 [1.44-10.15]##

 Median

1.02 [0.14-3.11]

3.46 [2.52-5.55]

4.55 [1.35-10.14]##

 D05

4.71 [0.29-7.97]

6.76 [3.78-8.29]

6.95 [2.19-10.24]#

 D01

6.01 [0.35-9.39]

7.72 [4.56-9.10]

7.68 [2.84-10.29]

Left lacrimal gland

   

 Minimum

3.63 [0.79-8.98]

5.88 [3.62-7.37]

6.24 [4.18-8.39]#

 Maximum

9.27 [0.86-10.56]

10.43 [9.96-10.68]

10.52 [10.20-10.84]#

 Mean

8.06 [5.84-10.03]

9.11 [7.73-9.80]

9.25 [7.94-10.28]#

 Median

8.32 [5.78-10.06]

9.34 [8.00-9.96]

9.46 [8.04-10.34]#

 D05

9.97 [9.27-10.75]

10.23 [9.65-10.60]

10.34 [9.81-10.66]#

 D01

10.13 [9.48-10.82]

10.36 [9.83-10.65]

10.44 [10.00-10.81]#

Right lacrimal gland

   

 Minimum

3.57 [0.85-8.99]

5.36 [3.07-7.12]

5.21 [3.11-7.33]

 Maximum

10.28 [9.83-10.81]

10.35 [9.77-10.61]

10.44 [10.14-10.74]

 Mean

8.18 [5.67-9.92]

8.89 [7.64-9.87]

8.94 [6.87-10.17]

 Median

8.54 [5.84-9.95]

9.14 [7.87-10.22]

10.26 [6.81-10.30]

 D05

9.99 [9.08-10.74]

10.15 [9.41-10.52]

10.29 [9.89-10.58]#

 D01

10.16 [9.50-10.78]

10.28 [9.59-10.56]

10.39 [10.09-10.63]#

  1. * p<0.05, ** p<0.01 compared with 3DCRT.
  2. # p<0.05, ## p<0.01 compared with LOF.