BioMed Research International / 2018 / Article / Tab 4

Research Article

The Dosimetric Impact of Shifts in Patient Positioning during Boron Neutron Capture Therapy for Brain Tumors

Table 4

Percent changes for mean tumor doses at the BMRR and the THOR with lateral shifts of a patient head model parallel to the beam port collimator surface or with an air gap between the patient head model and the beam port due to an outward shift of the head.

Distance and type of shift BMRR (%) [3]THOR (%)
ModelCylindrical

1 cm lateral shift2.781.430.631.480.87
2 cm lateral shift7.195.523.635.314.11
3 cm lateral shift-11.128.8511.319.38
1 cm outward shift9.034.704.744.724.25
2 cm outward shift15.5610.678.5111.8510.92
3 cm outward shift-15.1712.5716.8715.32

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