Determining AVM Size

Size of brain AVMs is measured on the pre-treatment MRI in the 3 views which includes the AVM’s largest diameter.



Measure AVM size in 3 dimensions from pretreatment angiogram in lateral and anteroposterior projections (see Figure above) or from the MRI axial cuts.  From these dimensions, a calculation can be made to estimate AVM volume in mL with the ABC/2 formula.


“Reporting Terminology For Brain Arteriovenous Malformation Clinical And Radiographic Features For Use In Clinical Trials”. Stroke 32.6 (2001): 1430-1442. Web.

Leave a Reply

Fill in your details below or click an icon to log in: Logo

You are commenting using your account. Log Out /  Change )

Google photo

You are commenting using your Google account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s