TABLE 2:

MR Imaging and SPECT findings in nine patients with DAVF hyperintensity on T2-Weighted MR Images

Patient	Before Treatmen Findings			After Treatment Findings			Outcome
	T2-Weighted MR Imaging	SPECT		T2-Weighted MR Imaging	SPECT
	T2-Weighted MR Imaging	At Rest	With Acetazolamide	T2-Weighted MR Imaging	At Rest	With Acetazolamide
Type 2a
12	Hyperintensity	Hypoperfusion	Preserved	T2-normalization at 1 mo	Normal	Not done	Good
13	Hyperintensity	Hypoperfusion	Preserved	T2-normalization at 2 wk	Normal	Not done	Good
14	Hyperintensity	Hypoperfusion	Preserved	T2-normalization at 2 wk	Normal	Not done	Good
15	Hyperintensity	Hypoperfusion	Preserved	T2-normalization at 1 wk	Normal	Not done	Good
16	Hyperintensity	Hypoperfusion	Preserved	T2-normalization at 3 wk	Normal	Not done	Good
17	Hyperintensity	Hypoperfusion	Preserved	T2-normalization at 2 wk	Normal	Not done	Good
18	Hyperintensity	Hypoperfusion	Preserved	T2-normalization at 3 wk	Normal	Not done	Good
Type 2b
19	Hyperintensity	Hypoperfusion	Non-preserved	T2-hyperintensity continued, subcortical hemorrhage	Hypoperfusion, peripheral hyperperfusion	Non-preserved	Poor
20	Hyperintensity	Hypoperfusion	Non-preserved	T2-hyperintensity continued	Hypoperfusion	Non-preserved	Poor
21	Hyperintensity	Hypoperfusion	Non-preserved	T2-hyperintensity continued	Hypoperfusion	Non-preserved	Poor
22	Hyperintensity	Hypoperfusion	Non-preserved	T2-hyperintensity continued	Hypoperfusion	Non-preserved	Poor