Title

Revisiting photodynamic therapy dosimetry: reductionist & surrogate approaches to facilitate clinical success

Document Type

Article

Publication Date

4-7-2016

Publication Title

Physics in Medicine and Biology

Abstract

Photodynamic therapy (PDT) can be a highly complex treatment, with many parameters influencing treatment efficacy. The extent to which dosimetry is used to monitor and standardize treatment delivery varies widely, ranging from measurement of a single surrogate marker to comprehensive approaches that aim to measure or estimate as many relevant parameters as possible. Today, most clinical PDT treatments are still administered with little more than application of a prescribed drug dose and timed light delivery, and thus the role of patient-specific dosimetry has not reached widespread clinical adoption. This disconnect is at least partly due to the inherent conflict between the need to measure and understand multiple parameters in vivo in order to optimize treatment, and the need for expedience in the clinic and in the regulatory and commercialization process.

DOI

10.1088/0031-9155/61/7/R57

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