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The impact of β-amyloid positron emission tomography on the diagnostic and treatment decisions of dementia experts

    Michael L Ganz

    *Author for correspondence:

    E-mail Address: michael.ganz@evidera.com

    Evidera, 500 Totten Pond Road, 5th Floor, Waltham, MA 02451, USA

    ,
    Alie F Tawah

    Evidera, 500 Totten Pond Road, 5th Floor, Waltham, MA 02451, USA

    ,
    Shien Guo

    Evidera, 500 Totten Pond Road, 5th Floor, Waltham, MA 02451, USA

    ,
    Abhishek S Chitnis

    Johnson & Johnson Co, 410 George Street, New Brunswick, NJ 08901, USA (This study was completed while AS Chitnis was an employee of Evidera)

    ,
    Hedwig Silies

    formerly Piramal Imaging Ltd., Market Access & HEOR, 23 Science Park, Cambridge, UK

    ,
    Barbara Schäuble

    formerly Piramal Imaging GmbH, Global Medical Affairs, Tegeler Strasse 6–7 D13353 Berlin, Germany

    ,
    Aleksandar Jovalekic

    Piramal Imaging GmbH, Clinical R&D, Tegeler Strasse 6–7 D13353 Berlin, Germany

    &
    Norman L Foster

    Center for Alzheimer's Care, Imaging & Research, Department of Neurology, 729 Arapeen Drive, Salt Lake City, University of Utah, Salt Lake City, UT 84108, USA

    Published Online:https://doi.org/10.2217/nmt-2016-0059

    Aim: Amyloid positron emission tomography (aPET) measurement of Alzheimer's disease (AD) pathology could improve the accurate diagnosis of cognitive disorders. Appropriate use criteria recommend that only dementia experts order aPET. Materials & methods: We surveyed 145 dementia experts about their current approaches to evaluation and treatment and the likely influence of aPET. Results: Experts expected aPET to alter diagnostic procedures and patient management and also increase diagnostic certainty. They anticipated confirming AD or altering pharmacological treatment following positive results more than excluding AD following negative results. Experts familiar with aPET reported changes that were more consistent with appropriate use criteria and published evidence. Conclusions: Knowledge about aPET strongly influenced effects on diagnostic certainty and changed clinical practice. Dementia experts may need additional training to achieve optimal benefit from aPET.

    Papers of special note have been highlighted as: • of interest; •• of considerable interest

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