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Intrafraction motion with bite blocks
1. Masi, IJROBP 71, 2008 p926 (Novastereo, Novater)
(
with bite block, ns
)
X:-0.2
±
0.6 Y:0.1
±
0.6 Z:0.3
±
0.6
and rotations:
-1.0
°±
1.6, -0.8
°±
1.0
°
, -0.1
°±
1.2
°
trend towards higher intrafraction error with
longer treatment time (15 min). Use of bite-block
reduced.
2. Santvoort IJROBP 72, 2008 p261, Brainlab
Mask: 3D: 0.7
±
0.6 mm
AP:-0.01
±
0.10
CC:0.05
±
0.28
LR:-0.11
±
0.20
Table: 0.02
±
0.22 CC:-0.02
±
0.23 LR:-0.05
±
0.31
With bite block: 3D: 0.4
±
0.4mm,
AP:-0.03
±
0.06
CC:-0.13
±
0.13
LR:-0.11
±
0.16
Table: 0.06
±
0.17 CC:-0.02
±
0.15 LR:-0.02
±
0.11
Intrafraction errors for vertical and longitudinal
translations and for rotations were smaller with
bite block.
3. Ruschin IJROBP 79, 2010 p306 Gamma-Knife bite
block accuracy: 3D: 0.4 mm
±
0.3 mm
1
2
3