Identify
Distinguish the gantry and positioning couch.
MEDIVEERSETHE PRACTICAL HUBLOOK CLOSELY / UNDERSTAND CLEARLY
CT scanner
Explain how CT imaging can support radiotherapy planning, distinct from treatment delivery.
REFERENCE GALLERY1 / 1 reference
1
Gantry opening
The opening through which the patient couch moves during the CT examination.
Zoom in, then drag to inspect. Keyboard: + / − to zoom, arrows to pan, 0 to reset. Tap the numbered markers to explore parts.
ct scanner — reference view
Image: Tomáš Vendiš · Source / original · CC BY-SA 4.0Resized and converted to WebP; original colours retained.
Identify and explain
X-ray attenuation measurements from multiple directions are reconstructed into cross-sectional images.
- Gantry opening
- Patient couch
- Scanner housing and controls
Justify
State the clinical question and consider suitable alternatives.
Optimise
Apply the appropriate protocol, contrast assessment and radiation-safety process.
At the viva table
Try answering aloud, then open the suggested answer. Examiner questions vary.
01 / Does CT use ionising radiation?
Yes. It uses X-rays.
02 / Is CT the same as MRI?
No. Their physical principles and safety considerations differ.
03 / Is contrast required for every CT?
No. It depends on the question and protocol.
04 / Why provide relevant clinical information?
It helps choose and interpret an appropriate examination.