Characteristics of Focused Ultrasound Mediated Blood-Brain Barrier Opening in Magnetic Resonance Images
Open accessAbstract
Objective : The blood-brain barrier (BBB) is an obstacle for molecules to pass through from blood to the brain. Focused ultrasound is a new method which temporarily opens the BBB, which makes pharmaceutical delivery or removal of neurodegenerative proteins possible. This study was demonstrated to review our BBB opening procedure with magnetic resonance guided images and find specific patterns in the BBB opening.Methods : In this study, we reviewed the procedures and results of two clinical studies on BBB opening using focused ultrasound regarding its safety and clinical efficacy. Magnetic resonance images were also reviewed to discover any specific findings.Results : Two clinical trials showed clinical benefits. All clinical trials demonstrated safe BBB opening, with no specific side effects. Magnetic resonance imaging showed temporary T1 contrast enhancement in the sonication area, verifying the BBB opening. Several low-signal intensity spots were observed in the T2 susceptibility-weighted angiography images, which were also reversible and temporary. Although these spots can be considered as microbleeding, evidence suggests these are not ordinary microbleeding but an indicator for adequate BBB opening.Conclusion : Magnetic resonance images proved safe and efficient BBB opening in humans, using focused ultrasound.
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Cites
CSF, blood-brain barrier, and brain drug delivery
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Self-citationNon-invasive opening of BBB by focused ultrasound
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Rouhi, N., Chakeri, Z., Ghorbani Nejad, B., Rahimzadegan, M., Rafi Khezri, M., Kamali, H., & Nosrati, R. (2024) · Heliyon · doi:10.1016/j.heliyon.2024.e37533 · Cited by 20 · see citing works
- Authors
- Chang, K. W., Hong, S. W., Chang, W. S., Jung, H. H., & Chang, J. W.
- Affiliations
- Yonsei University (KR)
- Corresponding author
- Chang, Jin Woo
- Venue
- Journal of Korean Neurosurgical Society
- Publisher
- Korean Neurosurgical Society
- Published
- 2023-03-01
- Volume
- 66
- Issue
- 2
- Pages
- 172-182
- ISSN
- 1225-8245 (ISSN-L)
- 2005-3711
- 1598-7876
- PMC
- PMC10009247
- OpenAlex
- W4312018501
- Cited by
- 15
- References
- 7
- Citations by year
- 2026: 5 · 2025: 5 · 2024: 3 · 2023: 2
- FWCI
- 0.73
- Type
- journal article
- Language
- en
- Open access
- gold
- doi.org
- Licence
- Locations
- Journal of Korean Neurosurgical Society (publishedVersion, cc-by-nc)
- PubMed Central (publishedVersion, cc-by-nc)
- PubMed (publishedVersion)
- YUHSpace (Yonsei University Medical Library) (submittedVersion, cc-by-nc-nd)
- Topics
- Physical Sciences › Engineering › Biomedical Engineering › Ultrasound and Hyperthermia Applications
- Life Sciences › Neuroscience › Neurology › Barrier Structure and Function Studies
- Health Sciences › Medicine › Radiology, Nuclear Medicine and Imaging › Advanced MRI Techniques and Applications
- Keywords
- focused ultrasound, blood-brain barrier opening, transcranial ultrasound, magnetic resonance imaging, T1 contrast enhancement, microbleeds, brain drug delivery
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