Stereotactic angiogram - did anyone have it before Gamma?

General
1

Hi,

I’m seeking a piece of advise or any experience that anyone might have with similar case. I have <1cm, Spetzler Martin grade 3, Lawton-Young grade 2 Left posterior fossa arteriovenous malformation (I already had 1 bleed, 1,5y ago). This AVM is fed by the bilateral superior cerebellar arteries, with deep venous drainage into the vein of Galen. There are no intranidal aneurysms.

I’m about to have a Gamma Knife procedure in 2 weeks (still not sure about it to be honest, I was also offered LINAC, which is also radiosurgery) and I have a question about angiogram (invasive one, with a catherer). Docs told me that I would need to have another one (I had angio 2 months ago, in July 2025), this time stereotactic (with the frame on my head) as opposed to diagnostic one, which I already had.

a) Did anyone of you have similar angiogram before GK procedure?
b) Did anyone of you had Gamma for such small AVM in the similar location (if yes , was it successfull/any side effects in this area of brain?

Thanks.

2

I had two before my GK, one when in the hospital due to the bleed. The second was a few months later and a couple months before the GK. They advised they may need to do one on the morning of angio if they were not satisfied with the mapping from the second. I didn’t have it as the results of the second met the requirements of the team. I did have a CT and MRI the morning of. John