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Table 1 Dosimetric summary of target volumes

From: Intensity-modulated radiation therapy (IMRT) vs. 3D conformal radiotherapy (3DCRT) in locally advanced rectal cancer (LARC): dosimetric comparison and clinical implications

  

D95 (Gy)

Dmin (Gy)

Dmax(Gy)

  

c3DCRT

f3DCRT

IMRT

c3DCRT

f3DCRT

IMRT

c3DCRT

f3DCRT

IMRT

GTV

mean

47.5

47.5

46.9

46.7

46.6

45.1

50.2

50.3

51.6

 

SD

0.6

0.7

2.3

0.4

0.6

2.0

1.0

1.0

2.7

 

p

p 1 < 0.05

p 2 < 0.05

Ref

p 1 < 0.05

p 2 < 0.05

Ref

p 1 =0.2

p 2 =0.3

Ref

PTV

mean

47.1

46.9

45.7

39.5

42.2

39.2

51.1

51.2

54.0

 

SD

0.5

0.5

0.8

4.2

1.2

1.7

0.6

0.5

2.6

 

p

p 1 < 0.05

p 2 < 0.05

Ref

p1 = 0.4

p 2 < 0.05

Ref

p 1 < 0.05

p 2 < 0.05

Ref

  1. c3DCRT: classic tridimensional conformal radiotherapy;
  2. f3DCRT: fitting tridimensional conformal radiotherapy,
  3. IMRT: intensity modulated radiation therapy;
  4. D95: minimal dose to 95% of the volume;
  5. GTV: gross tumor volume;
  6. PTV: planning target volume;
  7. SD: Standard deviation;
  8. p1: c3DCRT vs IMRT;
  9. p2: f3DCRT vs IMRT;
  10. Ref:Referencevalue