A screening CT scan done in Brussels costs 500 Euros paid in advance by bank transfer (+VAT).
The cost of a diagnostic CT scan is much higher as it included the production of a detailed and fully illustrated radiological report. Its precise cost depends on:
As an example, here is the full radiological report (PDF) regarding the CT scan and analysis in Brussels of a (fake) Han Dynasty Dancer.
Its cost was EUR 2.000, all included.
To get a precise quote, check How to proceed ?