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Table 1 Specifications of the treatment simulation CT and cone beam CT

From: Comparative analysis of delivered and planned doses in target volumes for lung stereotactic ablative radiotherapy

In machine

Planning CT (PCT)

Cone beam CT

Manufacturer

Philips Electronics (Amsterdam, the Netherlands)

Varian Medical Systems (Palo Alto, CA, USA)

Model (software version)

Brilliance CT Big Bore™ (Ver. 4.2, 4.8)

TrueBeamSTX On Board Imager (Ver. 2.5.16, 2.5.17)

Source-to-detector distance

1183.4 mm

1500 mm

Source-to-isocentre distance

645 mm

1000 mm

Reconstruction diameter

700 mm

464.9 mm

Pixels

512 × 512

512 × 512

Resolution

1.287–1.367 mm

0.908 mm

Slice thickness

3 mm

2 mm

Kilovolt peak

120 kV

125 kV

Tube Current

196–310 mA

20 mA

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Radiation Oncology

ISSN: 1748-717X

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