Evidence map›Paper›PMID 22723060›Full record

ArticleAJNR. American journal of neuroradiology2013

Neuronavigation-guided focused ultrasound-induced blood-brain barrier opening: a preliminary study in swine.

K-C Wei, H-C Tsai, Y-J Lu, H-W Yang, M-Y Hua, M-F Wu, P-Y Chen, C-Y Huang, T-C Yen, H-L Liu

Registry-linked trialOpen access · hybridAbstract read
In one paragraph

Article in AJNR. American journal of neuroradiology, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT03626896 (A FIH Feasibility Study to Evaluate the Safety of Transient Disruption of Blood-brain Barrier in Recurrent Glioblastoma Multiforme), which is not on this map. Cited by 35 papers.

0numbers the graph read from it
0cells of the map it votes in
35citing papers in PubMed
1.7field-weighted citation impact, top 16% 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.

NCT03626896 nacompletednot on this mapstarted 2018, after this paper: background citation

A FIH Feasibility Study to Evaluate the Safety of Transient Disruption of Blood-brain Barrier in Recurrent Glioblastoma Multiforme (GBM) Patients Using NaviFUS System

TypeinterventionalSponsorNaviFUS CorporationRan2018 to 2019Enrolled6ConditionsGlioblastoma Multiforme, Brain Tumor, Glioblastoma, GliomaArmsNaviFUS System
3 · Its place in the literature

Who cites it

35 citing papers in PubMed, 57 citations in OpenAlex.

  1. Trial
  2. Review
  3. Focused ultrasound for brain metastases.Neuro-oncology advances · 2026
    Review
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  6. Article
  7. Design and Validation of a Patient-Specific Stereotactic Frame for Transcranial Ultrasound Therapy.IEEE transactions on ultrasonics, ferroelectrics, and frequency control · 2024
    Article
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  12. Review
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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

10 authors at 3 institutions in 2 countries.

K-C WeiDepartment of Neurosurgery, Chang-Gung University and Memorial Hospital, Taoyuan, Taiwan.
H-C Tsai
Y-J Lu
H-W Yang
M-Y Hua
M-F Wu
P-Y Chen
C-Y Huang
T-C Yen
H-L Liu
Imaging Center · USChang Gung University · TWMemorial Hospital · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

background and purposeFUS-induced BBB opening is a promising technique for noninvasive and local delivery of drugs into the brain. Here we propose the novel use of a neuronavigation system to guide the FUS-induced BBB opening procedure and investigate its feasibility in vivo in large animals. MATERIALS AND

methodsWe developed an interface between the neuronavigator and FUS to allow guidance of the focal energy produced by the FUS transducer. The system was tested in 29 swine by more than 40 sonication procedures and evaluated by MR imaging. Gd-DTPA concentration was quantitated in vivo by MR imaging R1 relaxometry and compared with ICP-OES assay. Brain histology after FUS exposure was investigated using H&E and TUNEL staining.

resultsNeuronavigation could successfully guide the focal beam, with precision comparable to neurosurgical stereotactic procedures (2.3 ± 0.9 mm). A FUS pressure of 0.43 MPa resulted in consistent BBB opening. Neuronavigation-guided BBB opening increased Gd-DTPA deposition by up to 1.83 mmol/L (a 140% increase). MR relaxometry demonstrated high correlation with ICP-OES measurements (r(2) = 0.822), suggesting that Gd-DTPA deposition can be directly measured by imaging.

conclusionsNeuronavigation provides sufficient precision for guiding FUS to temporally and locally open the BBB. Gd-DTPA deposition in the brain can be quantified by MR relaxometry, providing a potential tool for the in vivo quantification of therapeutic agents in CNS disease treatment.

Indexed as

AnimalsBlood-Brain BarrierFeasibility StudiesHigh-Intensity Focused Ultrasound AblationMagnetic Resonance ImagingNeuronavigationPilot ProjectsSwine

Identifiers

PMID22723060
PMCPMC7966321
OpenAlexW2334100989

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

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.