Skip to main content

Table 3 Percentage differences in dosimetric parameters according to incident beam angle of MC simulations with GB and GI stents compared to the MC simulations without stent for proton beam

From: Assessment of dose perturbations for metal stent in photon and proton radiotherapy plans for hepatocellular carcinoma

 

45°

90°

GB stent

GI stent

GB stent

GI stent

GB stent

GI stent

Dmax (%)

0.8

1.1

1.4

1.6

4.4

2.7

Dmin (%)

 − 5.9

 − 6.3

 − 10.7

 − 11.1

 − 31.8

 − 30.2

Dmean (%)

 − 0.5

 − 0.3

 − 0.6

 − 0.6

 − 4.1

 − 2.1

D1% (%)

0.7

0.8

1.0

1.1

3.7

2.1

  1. GB stent; stent used in the bile duct, GI stent: stent used in gastrointestinal tract, Dmax: maximum dose, Dmin: minimum dose, Dmean: mean dose, D1%: dose of 1% for volume