In the past, native computed tomography of the neurocranium (CCT) was often the only procedure to diagnose a stroke. Technical limitations of previous generations of scanners made their use impractical for complementary methods of visualising blood
vessels or for perfusion imaging. With the introduction of multi-slice spiral CT these technical limitations disappeared and both perfusion CT (PCT) and CT angiography (CTA) have evolved. In the field of stroke diagnosis these developments have led to the introduction of what is known as stroke imaging. Modern CT protocols for diagnosing a stroke, consisting of the basic techniques of CCT, PCT and CTA,
allow a comprehensive evaluation of the the cervico-cerebral vessels and perfusion status from the very first imaging procedure, so that a treatment decision can be made rapidly. The following article briefly describes some practical aspects of carrying out and evaluating stroke imaging.