1naresh2naresh
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
                )

        )

    [d154bdaa-d808-4996-ab81-70a0e04b67c5] => Array
        (
            [runtime-id] => d154bdaa-d808-4996-ab81-70a0e04b67c5
            [type] => toll-free-key
            [service-id] => ajnr-ac.highwire.org
            [access-type] => Controlled
            [privilege] => Array
                (
                    [bdcbdf81-c71a-44a0-af38-0e506af0262c] => Array
                        (
                            [runtime-id] => bdcbdf81-c71a-44a0-af38-0e506af0262c
                            [type] => toll-free-key
                        )

                )

            [credentials] => Array
                (
                    [method] => toll-free-key
                    [value] => tf_ipsecsha;0db9f3c1dff82f715c98d33b5a2fafce0c8448cb
                )

        )

)
1naresh2naresh
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
                )

        )

    [d154bdaa-d808-4996-ab81-70a0e04b67c5] => Array
        (
            [runtime-id] => d154bdaa-d808-4996-ab81-70a0e04b67c5
            [type] => toll-free-key
            [service-id] => ajnr-ac.highwire.org
            [access-type] => Controlled
            [privilege] => Array
                (
                    [bdcbdf81-c71a-44a0-af38-0e506af0262c] => Array
                        (
                            [runtime-id] => bdcbdf81-c71a-44a0-af38-0e506af0262c
                            [type] => toll-free-key
                        )

                )

            [credentials] => Array
                (
                    [method] => toll-free-key
                    [value] => tf_ipsecsha;0db9f3c1dff82f715c98d33b5a2fafce0c8448cb
                )

        )

)


Venous drainage pattern classification in intracranial dAVFs
Classification of Borden et al3Classification of Cognard et al2
Benign venous drainage patternsIDrains to dural sinusIDrains to dural sinus
No CVRNo sinus reflux
No CVR
IIaDrains to dural sinus
Sinus reflux present
No CVR
Aggressive venous drainage patternsIIDrains to dural sinusIIbDrains to dural sinus
CVR presentNo sinus reflux
CVR present
IIa+bDrains to dural sinus
Sinus reflux present
CVR present
IIIDirect drainage to cortical veinsIIIDirect drainage to cortical veins
OrNo venous ectasia
Drainage to an isolated segment of dural sinusIVDirect drainage to cortical veins
Venous ectasia present
VSpinal perimedullary venous drainage
  • Note:—CVR indicates cortical venous reflux.