How is your doctor going to use this knowledge of how to cross the blood brain barrier to deliver therapeutic interventions?
http://scitation.aip.org/content/asa/journal/jasa/136/4/10.1121/1.4900320
Applications and clinical considerations
Microbubble-mediated opening of the blood–brain barrier (BBB) using
ultrasound is a targeted technique that provides a transient time window during which circulating
therapeutics that are normally restricted to the vasculature can pass into the
brain. This
effect has been associated with increases in
cavitation activity of the circulating
microbubbles, and our group has previously described a method to actively control treatments in pre-clinical rodent
models based on
acoustic emissions
recorded by a single transducer. Recently, we have developed a
clinical-scale receiver array capable of detecting bubble activity
through
ex vivo human skullcaps starting at pressure levels below the threshold for BBB opening. The use of this array to spatially map
cavitation activity in the
brain during
ultrasound therapy will be discussed, including considerations for compensating for the distorting
effects of the skull bone. Additionally, results from pre-clinical investigations examining safety and
therapeutic
potential will be presented, and receiver design considerations for
both pre-clinical and clinical scale systems will be discussed.
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