Quantitative evaluation of blood-tumor-barrier response following focused ultrasound and microbubble treatment in rat glioma: can we improve drug delivery to brain tumors?
نویسنده
چکیده
Background/introduction The increased interstitial fluid pressure (IFP) from vasogenic edema, which results from a leaky bloodtumor-barrier (BTB), creates a barrier for transvascular drug delivery, particularly larger molecules that are unable to diffuse across and must resort to bulk fluid flow. We have previously used dynamic contrast enhanced-computed tomography (DCE-CT) to quantitatively evaluate the blood-brain-barrier (BBB) response in normal brain and have shown that focused ultrasound (FUS) and microbubble (MB) treatment in a rat brain demonstrates a 3-4 times transient increase at our optimized parameters. The purpose of this study was to quantitatively evaluate the BTB response following FUS and MB treatment in rat glioma, in the context of improving drug delivery to brain tumors.
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عنوان ژورنال:
دوره 3 شماره
صفحات -
تاریخ انتشار 2015