ArticleQuantitative imaging in medicine and surgery2021
MR-guided blood-brain barrier opening induced by rapid short-pulse ultrasound in non-human primates.
Article in Quantitative imaging in medicine and surgery, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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5 citing papers in PubMed, 12 citations in OpenAlex.
- Self-Assembled Rg3/Naringenin Nanoparticles for Targeted Brain Delivery: A Promising Therapeutic Approach for Early Alzheimer's Disease.Pharmaceuticals (Basel, Switzerland) · 2026Article
- Advances and innovations in ultrasound-based tumor management: current applications and emerging directions.The ultrasound journal · 2025Review
- Innovative Approaches to Brain Cancer: The Use of Magnetic Resonance-guided Focused Ultrasound in Glioma Therapy.Cancers · 2024Review
- An all-ultrasound cranial imaging method to establish the relationship between cranial FUS incidence angle and transcranial attenuation in non-human primates in 3D.Scientific reports · 2024Article
- Rapid short-pulses of focused ultrasound and microbubbles deliver a range of agent sizes to the brain.Scientific reports · 2023Article
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Authors and funding
8 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundOpening the blood-brain barrier (BBB) with focused ultrasound and microbubbles (MBs) has potential use in non-invasive targeted therapy for central nervous system (CNS) diseases. Rapid short-pulse (RaSP) ultrasound with a microsecond sequence has been proposed as a minimally disruptive and efficient method for opening the BBB. This work aimed to test the feasibility and safety of BBB opening in a non-human primate model using combined RaSP ultrasound sequence and MBs.
methodsThe BBB of 2 rhesus macaques were opened with RaSP and the commonly used 10 millisecond long pulse (LP), combined with microbubble (SonoVueTM, 0.2 µL/g) injection in a bolus. The transducer's central frequency was 300 kHz, and the acoustic pressure was set to 0.56 MPa calibrated in water. The BBB opening procedure was guided and evaluated with contrast-enhanced magnetic resonance imaging. The relative signal enhancement was compared between RaSP and LP sonication. T2-weighted fast-spin echo (FSE) and T2*-weighted gradient echo (GRE) sequences were scanned to evaluate edema and micro-bleeding at the end of the procedure.
resultsThe relative signal enhancement was significantly higher (P<0.01) in the focal area compared to a similar area of the opposite hemisphere at all time points after sonication in each monkey, indicating the successful opening of the BBB. The relative signal enhancement in RaSP reached more than 60% of that with LP in our experiment, while the energy deposition was only 6% of LP. No edema or hemorrhage was found on magnetic resonance images after RaSP.
conclusionsCombined RaSP ultrasound and MBs for the BBB opening is a practical method in large animal models.
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