Radiological confirmation of brain death is required when the preconditions for clinical brain death testing cannot be met. The objective of these tests is to demonstrate an absence of blood flow above the foramen magnum. The college love to ask candidates about the preconditions of clinical testing, as well as the specific radiological modalities available. Again, the ANZIC statement on Brain Death and Organ Donation is my primary resource for this summary. At the time of writing, the recent edition is Version 4.1 (2021).
Previous SAQs involving the radiological diagnosis of brain death include the following:
Broadly speaking, these are almost the same as the contraindicatiosn to clinical testing.
The indications for choosing a radionuclide scan, rather than a DSA, may be as follows: