High Resolution MRI for Functional Evaluation of the Parotid Glands Following Continuous Stimulation.
Evanthia Kousi 1 , Maria Schmidt 1 , Rafal Panek 1 , Marco Borri 1 , Alison MacDonald 1 , Liam Welsh 1 , Angela Riddell 1 , Kate Newbold 2 , and Martin Leach 1
CR-UK and EPSRC Cancer Imaging
Centre,Institute of Cancer Research, Royal Marsden
Hospital, Sutton, Surrey, United Kingdom,
Unit, Royal Marsden Hospital, Sutton, Surrey, United
In this study, high resolution MRI was performed for the
evaluation of the parotid glands function after
continuous salivary stimulation on healthy volunteers.
ADC and signal intensity on heavily T2-w images were
measured before and during continuous stimulation. ADC
and image intensity on HT2W images of the parotids
increased after stimulation, whereas, a heterogeneous
stimulation response of the gland was observed. However,
no spatial correspondence was found between ADC and
intensity increases in heavy T2-w images. Our results
indicate that high resolution images combined with
continuous stimulation of parotids is a successful
strategy to achieve functional assessment at regional
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