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.

References

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

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