Evidence map›Paper›PMID 23029240›Full record

ArticlePloS one2012

Controlled ultrasound-induced blood-brain barrier disruption using passive acoustic emissions monitoring.

Costas D Arvanitis, Margaret S Livingstone, Natalia Vykhodtseva, Nathan McDannold

Open access · goldAbstract readEvaluation Study
In one paragraph

Article in PloS one, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 117 papers.

0numbers the graph read from it
0cells of the map it votes in
117citing papers in PubMed
9.5field-weighted citation impact, top 1% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

117 citing papers in PubMed, 190 citations in OpenAlex.

  1. Localized blood-brain barrier opening in infiltrating gliomas with MRI-guided acoustic emissions-controlled focused ultrasound.Proceedings of the National Academy of Sciences of the United States of America · 2021
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57 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

4 authors at 2 institutions in 1 country.

Costas D ArvanitisDepartment of Radiology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA. cda@bwh.harvard.edu
Margaret S Livingstone
Natalia Vykhodtseva
Nathan McDannold
Brigham and Women's Hospital · USHarvard University · US

Funding

Multidisciplinary Training in Image-Guided TherapyR25CA089017 · NCI · BRIGHAM AND WOMEN'S HOSPITAL · PI FENNESSY, FIONA · 2001 to 2017
$7.8M
Blood-Brain Barrier Disruption using Focused Ultrasound in a Large Animal ModelRC2NS069413 · NINDS · BRIGHAM AND WOMEN'S HOSPITAL · PI MCDANNOLD, NATHAN J. · 2009 to 2010
$1.8M
NCI NIH HHS R25 CA089017NINDS NIH HHS RC2 NS069413NINDS NIH HHS RC2NS069413
6 · The paper itself

Abstract

The ability of ultrasonically-induced oscillations of circulating microbubbles to permeabilize vascular barriers such as the blood-brain barrier (BBB) holds great promise for noninvasive targeted drug delivery. A major issue has been a lack of control over the procedure to ensure both safe and effective treatment. Here, we evaluated the use of passively-recorded acoustic emissions as a means to achieve this control. An acoustic emissions monitoring system was constructed and integrated into a clinical transcranial MRI-guided focused ultrasound system. Recordings were analyzed using a spectroscopic method that isolates the acoustic emissions caused by the microbubbles during sonication. This analysis characterized and quantified harmonic oscillations that occur when the BBB is disrupted, and broadband emissions that occur when tissue damage occurs. After validating the system's performance in pilot studies that explored a wide range of exposure levels, the measurements were used to control the ultrasound exposure level during transcranial sonications at 104 volumes over 22 weekly sessions in four macaques. We found that increasing the exposure level until a large harmonic emissions signal was observed was an effective means to ensure BBB disruption without broadband emissions. We had a success rate of 96% in inducing BBB disruption as measured by in contrast-enhanced MRI, and we detected broadband emissions in less than 0.2% of the applied bursts. The magnitude of the harmonic emissions signals was significantly (P<0.001) larger for sonications where BBB disruption was detected, and it correlated with BBB permeabilization as indicated by the magnitude of the MRI signal enhancement after MRI contrast administration (R(2) = 0.78). Overall, the results indicate that harmonic emissions can be a used to control focused ultrasound-induced BBB disruption. These results are promising for clinical translation of this technology.

Indexed as

AcousticsAlgorithmsAnimalsBlood-Brain BarrierCapillary PermeabilityContrast MediaFemaleGadolinium DTPAGeniculate BodiesGyrus CinguliMacaca mulattaMagnetic Resonance ImagingMaleMicrobubblesSonicationSoundContrast MediaGadolinium DTPA

Identifiers

PMID23029240
PMCPMC3454363
OpenAlexW2144686091

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.