1naresh2naresh<pre>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
                )

        )

    [ad0f32a2-4e83-4f01-a3e4-11c9ce8b8e8c] => Array
        (
            [runtime-id] => ad0f32a2-4e83-4f01-a3e4-11c9ce8b8e8c
            [type] => toll-free-key
            [service-id] => ajnr-ac.highwire.org
            [access-type] => Controlled
            [privilege] => Array
                (
                    [8c811fe0-e793-4200-85a5-b1befbca5097] => Array
                        (
                            [runtime-id] => 8c811fe0-e793-4200-85a5-b1befbca5097
                            [type] => toll-free-key
                        )

                )

            [credentials] => Array
                (
                    [method] => toll-free-key
                    [value] => tf_ipsecsha;f8aa8064ae7963c16733c9c7ef6f58bd3d9539bd
                )

        )

)
1naresh2naresh<pre>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] => FreeToRead
            [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
                )

        )

    [5d847d3f-d00e-48a0-9e51-a81536416be7] => Array
        (
            [runtime-id] => 5d847d3f-d00e-48a0-9e51-a81536416be7
            [type] => toll-free-key
            [service-id] => ajnr-ac.highwire.org
            [access-type] => FreeToRead
            [privilege] => Array
                (
                    [573f4979-c3a3-4c0f-80e0-09e245948db5] => Array
                        (
                            [runtime-id] => 573f4979-c3a3-4c0f-80e0-09e245948db5
                            [type] => toll-free-key
                        )

                )

            [credentials] => Array
                (
                    [method] => toll-free-key
                    [value] => tf_ipsecsha;f8aa8064ae7963c16733c9c7ef6f58bd3d9539bd
                )

        )

)
RT Journal Article
SR Electronic
T1 Bisphosphonate-Induced Osteonecrosis of the Jaw: Comparison of Disease Extent on Contrast-Enhanced MR Imaging, [<sup>18</sup>F] Fluoride PET/CT, and Conebeam CT imaging
JF American Journal of Neuroradiology
JO Am. J. Neuroradiol.
FD American Society of Neuroradiology
DO 10.3174/ajnr.A3355
A1 Guggenberger, R.
A1 Fischer, D.R.
A1 Metzler, P.
A1 Andreisek, G.
A1 Nanz, D.
A1 Jacobsen, C.
A1 Schmid, D.T.
YR 2012
UL http://www.ajnr.org/content/early/2012/12/06/ajnr.A3355.abstract
AB BACKGROUND AND PURPOSE: Imaging of bisphosphonate-induced osteonecrosis of the jaw is essential for surgical planning. We compared the extent of BONJ on contrast-enhanced MR imaging, [18F] fluoride PET/CT, and panoramic views derived from standard conebeam CT with clinical pre- and intraoperative examinations. MATERIALS AND METHODS: Between February 2011 and January 2012, ten subjects with written informed consent (9 women; mean, 69.6 years; range, 53–88 years) were included in this prospective ethics-board-approved study. Patients underwent CEMR imaging, [18F] fluoride PET/CT, and CBCT and were clinically examined pre- and intraoperatively. Surgery was performed, and BONJ was histologically confirmed in 9 patients. Location and extent of BONJ on different modalities/examinations were graphically compared (0 = no pathologic finding, 1 = smallest, 5 = largest extent of BONJ). Rank tests were used to assess overall and paired differences of ratings in 9 patients. A P value &lt;.05 was considered statistically significant. RESULTS: Significant differences in BONJ extent among different modalities and examinations were found (P &lt; .001). The highest median rank was seen in PET/CT (4 ± 1.12) and CEMR imaging (4 ± 1.01), followed by intraoperative examinations (3 ± 0.71), CBCT (2 ± 0.33), and preoperative examinations (1 ± 0). No significant differences were found between PET/CT and CEMR imaging (P = .23), except when comparing PET/CT to either CBCT, pre- and intraoperative examinations (all P &lt; .05). Preoperative examinations showed significantly less extensive disease than all other modalities/examinations (all P &lt; .05). CONCLUSIONS: [18F] fluoride PET/CT and CEMR imaging revealed more extensive involvement of BONJ compared with panoramic views from CBCT and clinical examinations. Abbreviations BONJbisphosphonate-induced osteonecrosis of the jawCBCTconebeam CTCEMRcontrast-enhanced MRMDCTmultidetector CTSTIRshort τ inversion recovery