Introducing dynamic dosimaging: potential applications for MRI-linac

Micro-Mini & Nano-Dosimetry & Innovative Technologies in Radiation Therapy

Metcalfe, P.^1 ; Alnaghy, S.J.^1,2 ; Newall, M.^1 ; Gargett, M.^1,4 ; Duncan, M.^1 ; Liney, G.^1,2,3,4 ; Begg, J.^2,3 ; Oborn, B.^1,2,3,4,5,6 ; Petasecca, M.^1 ; Lerch, M.^1 ; Rosenfeld, A.^1

Centre for Medical Radiation Physics, University of Wollongong, NSW, Australia^1

Ingham Institute for Applied Medical Research, Sydney

NSW, Australia^2

Department of Medical Physics, Liverpool and Macarthur Cancer Therapy Centre, Sydney

NSW, Australia^3

South Western Sydney Clinical School, University of New South Wales, Sydney

NSW, Australia^4

Royal North Shore Hospital, Sydney

NSW, Australia^5

Illawarra Cancer Care Centre, Wollongong

NSW, Australia^6

关键词: Dose tracking;    Dose verification;    Function of time;    Line radiation;    Moving frame;    Real time;    Therapy delivery;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/777/1/012007/pdf
DOI  :  10.1088/1742-6596/777/1/012007

来源: IOP

【 摘 要 】

The new era of intra-fraction dose tracking in radiation therapy delivery demands new dosimetry methods, whereby a moving frame of reference as a function of time may be required. This introduces a new paradigm into radiation therapy dose verification. The term we propose to describe this is dynamic dosimaging, which by our definition is tracking the location of a dosimeter array in real time during on-line radiation dose acquisition.