Array ( [urn:ac.highwire.org:guest:identity] => Array ( [runtime-id] => urn:ac.highwire.org:guest:identity [type] => guest [service-id] => ajnr-ac.highwire.org [access-type] => Controlled [privilege] => Array ( [urn:ac.highwire.org:guest:privilege] => Array ( [runtime-id] => urn:ac.highwire.org:guest:privilege [type] => privilege-set [privilege-set] => GUEST ) ) [credentials] => Array ( [method] => guest ) ) ) 1naresh

Array
(
    [urn:ac.highwire.org:guest:identity] => Array
        (
            [runtime-id] => urn:ac.highwire.org:guest:identity
            [type] => guest
            [service-id] => ajnr-ac.highwire.org
            [access-type] => Controlled
            [privilege] => Array
                (
                    [urn:ac.highwire.org:guest:privilege] => Array
                        (
                            [runtime-id] => urn:ac.highwire.org:guest:privilege
                            [type] => privilege-set
                            [privilege-set] => GUEST
                        )

                )

            [credentials] => Array
                (
                    [method] => guest
                )

        )

)

Table 2: 
Anatomic features of the vascular malformations treated
Patient No. Nidus Type Shunt Fistula Retrograde Venous Pressurization
1 Diffuse Mixed N/A No
2 N/A Fistulous Single-hole No
3 N/A Mixed Dural-osseous Reversed flow in deep venous system
4 Compact Plexiform N/A No
5 N/A Mixed Dural Cortical venous drainage via cavernous sinus to SOV, facial, and scalp veins
6 Compact Mixed N/A Reversed flow through deep and superficial veins
7 Diffuse Mixed N/A No
8 Diffuse Fistulous N/A No
9 Compact Plexiform N/A No
10 Diffuse Plexiform N/A No
11 Compact Plexiform N/A No
12 Compact Plexiform N/A No
13 Compact Plexiform N/A No
14 Compact Fistulous N/A No
15 Compact Plexiform N/A No

Note:—N/A indicates not applicable; SOV, superior ophthalmic vein.

Patient No.	Nidus Type	Shunt	Fistula	Retrograde Venous Pressurization
1	Diffuse	Mixed	N/A	No
2	N/A	Fistulous	Single-hole	No
3	N/A	Mixed	Dural-osseous	Reversed flow in deep venous system
4	Compact	Plexiform	N/A	No
5	N/A	Mixed	Dural	Cortical venous drainage via cavernous sinus to SOV, facial, and scalp veins
6	Compact	Mixed	N/A	Reversed flow through deep and superficial veins
7	Diffuse	Mixed	N/A	No
8	Diffuse	Fistulous	N/A	No
9	Compact	Plexiform	N/A	No
10	Diffuse	Plexiform	N/A	No
11	Compact	Plexiform	N/A	No
12	Compact	Plexiform	N/A	No
13	Compact	Plexiform	N/A	No
14	Compact	Fistulous	N/A	No
15	Compact	Plexiform	N/A	No