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Table 1 Patient and tumor characteristics

From: Analysis of motion of the rectum during preoperative intensity modulated radiation therapy for rectal cancer using cone-beam computed tomography

Characteristics

Number

Rate

Age (y)

       Median

66

       Range

44-85

Distance from AV

       Median

5 cm

       Range

0-12 cm

Rectal volume on planning CT

       Median

70 cc

       Range

43-199 cc

Bladder volume on planning CT

       Median

177 cc

       Range

44-537 cc

Sex

  Male

23

72%

  Female

9

28%

Tumor

  1/4 Circumference

3

9%

  1/3 Circumference

5

16%

  1/2 Circumference

15

47%

  2/3 Circumference

3

9%

  3/4 Circumference

1

3%

  Whole Circumference

5

16%

Location

  Ra-Rb

6

19%

  Rb-Ra

1

3%

  Rb

17

55%

  Rb-Rp

5

17%

  Rb-Ra-Rp

2

6%

cT Stage

  cT2

1

3%

  cT3

23

72%

  cT4

7

22%

  cTx

1

3%

pT Stage

  pT0

5

16%

  pT1

2

6%

  pT2

9

28%

  pT3

10

31%

  pT4

4

13%

  pTx

2

6%