Evidence map›Paper›PMID 33752471›Full record

ReviewAnnual review of biomedical engineering2021

Therapeutic Agent Delivery Across the Blood-Brain Barrier Using Focused Ultrasound.

Dallan McMahon, Meaghan A O'Reilly, Kullervo Hynynen

Abstract readReview
In one paragraph

Review in Annual review of biomedical engineering, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 50 papers.

0numbers the graph read from it
0cells of the map it votes in
50citing papers in PubMed
–field-weighted citation impact
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

50 citing papers in PubMed.

  1. Trial
  2. Review
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  4. Article
  5. Review
  6. Article
  7. Article
  8. Review
  9. Review
  10. Review
  11. Article
  12. Article
  13. Review
  14. Overview of Therapeutic Ultrasound Applications and Safety Considerations: 2024 Update.Journal of ultrasound in medicine : official journal of the American Institute of Ultrasound in Medicine · 2025
    Review
  15. Article
  16. Role of PScientific reports · 2025
    Article
  17. Review
  18. Article
  19. Review
  20. Review
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

3 authors.

Dallan McMahonPhysical Sciences Platform, Sunnybrook Research Institute, Toronto, Ontario M4N 3M5, Canada; email: khynynen@sri.utoronto.ca.
Meaghan A O'ReillyPhysical Sciences Platform, Sunnybrook Research Institute, Toronto, Ontario M4N 3M5, Canada; email: khynynen@sri.utoronto.ca.
Kullervo HynynenPhysical Sciences Platform, Sunnybrook Research Institute, Toronto, Ontario M4N 3M5, Canada; email: khynynen@sri.utoronto.ca.

Funding

Ultrasound Therapy Delivery Through Intact SkullR01EB003268 · NIBIB · SUNNYBROOK & WOMEN'S COLL HLTH SCIS CTR · PI HYNYNEN, KULLERVO · 2003 to 2020
$8.2M
NIBIB NIH HHS R01 EB003268
6 · The paper itself

Abstract

Specialized features of vasculature in the central nervous system greatly limit therapeutic treatment options for many neuropathologies. Focused ultrasound, in combination with circulating microbubbles, can be used to transiently and noninvasively increase cerebrovascular permeability with a high level of spatial precision. For minutes to hours following sonication, drugs can be administered systemically to extravasate in the targeted brain regions and exert a therapeutic effect, after which permeability returns to baseline levels. With the wide range of therapeutic agents that can be delivered using this approach and the growing clinical need, focused ultrasound and microbubble (FUS+MB) exposure in the brain has entered human testing to assess safety. This review outlines the use of FUS+MB-mediated cerebrovascular permeability enhancement as a drug delivery technique, details several technical and biological considerations of this approach, summarizes results from the clinical trials conducted to date, and discusses the future direction of the field.

Indexed as

Blood-Brain BarrierMicrobubblesBrainDrug Delivery SystemsHumansSonicationblood–brain barrierbraindrug deliveryimage-guided therapytherapyultrasound

Identifiers

PMID33752471
PMCPMC11979953

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.