Modern surgery is inseparable from imaging. This episode explores the principles behind diagnostic imaging — from plain radiography to CT, MRI, ultrasound, and interventional techniques — focusing not on physics alone, but on clinical reasoning.

We discuss how to choose the right investigation at the right time, how to interpret images in context, and how imaging shapes surgical planning, risk assessment, and patient counselling. The episode also addresses limitations, incidental findings, and the dangers of over-investigation.

By emphasising interpretation rather than technology, this chapter trains clinicians to treat imaging as an extension of examination — not a replacement for it.

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