Puff of smoke sign - radiology video tutorial (angiography)

Author: Radiology Channel

Hi I'm dr andrew dixon from Radiopaedia.org and in this video we are going to look at the 'puff of smoke sign' which is an angiographic feature of moya moya disease. Here are lateral images from a vertebral artery injection and we can see that emanating away from the basilar there is a fine irregular network of curly vessels simulating the appearance of smoke. On these AP angiographic images from an internal carotid artery injection we can better appreciate the primary abnormality in moya moya disease severe narrowing off the circle of Willis vessels. It is this narrowing that results in the development of the collaterals perforating through the basil ganglia to supply blood to the rest of the brain.

These corresponding MR angiogram images demonstrate nicely how these vessels perforate into the brain substance. So a pretty cool little sign that one the puff of smoke sign in moya moya disease. You can find out more on the Radiopaedia.org website.

Puff of smoke sign - radiology video tutorial (angiography)

Hi I'm dr andrew dixon from Radiopaedia.org and in this video we are going to look at the 'puff of smoke sign' which is an angiographic feature of moya moya disease. Here…

By: Radiology Channel