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Yi H, Wu S, Wang X, Liu L, Wang W, Yu Y, Li Z, Jin Y, Liu J, Zheng T, Du D. Multimodal evaluation of the effects of low-intensity ultrasound on cerebral blood flow after traumatic brain injury in mice. BMC Neurosci 2024; 25:8. [PMID: 38350864 PMCID: PMC10865643 DOI: 10.1186/s12868-024-00849-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2023] [Accepted: 01/29/2024] [Indexed: 02/15/2024] Open
Abstract
Traumatic brain injury (TBI) is one of the leading causes of death and disability worldwide, and destruction of the cerebrovascular system is a major factor in the cascade of secondary injuries caused by TBI. Laser speckle imaging (LSCI)has high sensitivity in detecting cerebral blood flow. LSCI can visually show that transcranial focused ultrasound stimulation (tFUS) treatment stimulates angiogenesis and increases blood flow. To study the effect of tFUS on promoting angiogenesis in Controlled Cortical impact (CCI) model. tFUS was administered daily for 10 min and for 14 consecutive days after TBI. Cerebral blood flow was measured by LSCI at 1, 3, 7 and 14 days after trauma. Functional outcomes were assessed using LSCI and neurological severity score (NSS). After the last test, Nissl staining and vascular endothelial growth factor (VEGF) were used to assess neuropathology. TBI can cause the destruction of cerebrovascular system. Blood flow was significantly increased in TBI treated with tFUS. LSCI, behavioral and histological findings suggest that tFUS treatment can promote angiogenesis after TBI.
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Affiliation(s)
- Huiling Yi
- First Hospital of Qinhuangdao, No.258, Culture Road, Seaport District, Qinhuangdao, Hebei Province, China
| | - Shuo Wu
- First Hospital of Qinhuangdao, No.258, Culture Road, Seaport District, Qinhuangdao, Hebei Province, China
| | - Xiaohan Wang
- Graduate School, Chengde Medical University, Chengde, Hebei Province, China
| | - Lanxiang Liu
- First Hospital of Qinhuangdao, No.258, Culture Road, Seaport District, Qinhuangdao, Hebei Province, China.
- Graduate School, Chengde Medical University, Chengde, Hebei Province, China.
| | - Wenzhu Wang
- Beijing Key Laboratory of Neural Injury and Rehabilitation, China Rehabilitation Research Center, Beijing, China
| | - Yan Yu
- Beijing Key Laboratory of Neural Injury and Rehabilitation, China Rehabilitation Research Center, Beijing, China
| | - Zihan Li
- Beijing Key Laboratory of Neural Injury and Rehabilitation, China Rehabilitation Research Center, Beijing, China
| | | | - Jian Liu
- Northeastern University at Qinhuangdao of Information Science and Engineering, Qinhuangdao, Hebei Province, China
| | - Tao Zheng
- First Hospital of Qinhuangdao, No.258, Culture Road, Seaport District, Qinhuangdao, Hebei Province, China
| | - Dan Du
- First Hospital of Qinhuangdao, No.258, Culture Road, Seaport District, Qinhuangdao, Hebei Province, China
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Hosseini S, Puonti O, Treeby B, Hanson LG, Thielscher A. A head template for computational dose modelling for transcranial focused ultrasound stimulation. Neuroimage 2023; 277:120227. [PMID: 37321357 DOI: 10.1016/j.neuroimage.2023.120227] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Revised: 06/04/2023] [Accepted: 06/12/2023] [Indexed: 06/17/2023] Open
Abstract
Transcranial focused Ultrasound Stimulation (TUS) at low intensities is emerging as a novel non-invasive brain stimulation method with higher spatial resolution than established transcranial stimulation methods and the ability to selectively stimulate also deep brain areas. Accurate control of the focus position and strength of the TUS acoustic waves is important to enable a beneficial use of the high spatial resolution and to ensure safety. As the human skull causes strong attenuation and distortion of the waves, simulations of the transmitted waves are needed to accurately determine the TUS dose distribution inside the cranial cavity. The simulations require information of the skull morphology and its acoustic properties. Ideally, they are informed by computed tomography (CT) images of the individual head. However, suited individual imaging data is often not readily available. For this reason, we here introduce and validate a head template that can be used to estimate the average effects of the skull on the TUS acoustic wave in the population. The template was created from CT images of the heads of 29 individuals of different ages (between 20-50 years), gender and ethnicity using an iterative non-linear co-registration procedure. For validation, we compared acoustic and thermal simulations based on the template to the average of the simulation results of all 29 individual datasets. Acoustic simulations were performed for a model of a focused transducer driven at 500 kHz, placed at 24 standardized positions by means of the EEG 10-10 system. Additional simulations at 250 kHz and 750 kHz at 16 of the positions were used for further confirmation. The amount of ultrasound-induced heating at 500 kHz was estimated for the same 16 transducer positions. Our results show that the template represents the median of the acoustic pressure and temperature maps from the individuals reasonably well in most cases. This underpins the usefulness of the template for the planning and optimization of TUS interventions in studies of healthy young adults. Our results further indicate that the amount of variability between the individual simulation results depends on the position. Specifically, the simulated ultrasound-induced heating inside the skull exhibited strong interindividual variability for three posterior positions close to the midline, caused by a high variability of the local skull shape and composition. This should be taken into account when interpreting simulation results based on the template.
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Affiliation(s)
- Seyedsina Hosseini
- Department of Health Technology, Technical University of Denmark, Kgs. Lyngby, Denmark; Danish Research Centre for Magnetic Resonance, Centre for Functional and Diagnostic Imaging and Research, Copenhagen University Hospital Amager and Hvidovre, Denmark
| | - Oula Puonti
- Danish Research Centre for Magnetic Resonance, Centre for Functional and Diagnostic Imaging and Research, Copenhagen University Hospital Amager and Hvidovre, Denmark
| | - Bradley Treeby
- Department of Medical Physics and Biomedical Engineering, University College London, GowerStreet, London, WC1E 6BT, United Kingdom
| | - Lars G Hanson
- Department of Health Technology, Technical University of Denmark, Kgs. Lyngby, Denmark; Danish Research Centre for Magnetic Resonance, Centre for Functional and Diagnostic Imaging and Research, Copenhagen University Hospital Amager and Hvidovre, Denmark
| | - Axel Thielscher
- Department of Health Technology, Technical University of Denmark, Kgs. Lyngby, Denmark; Danish Research Centre for Magnetic Resonance, Centre for Functional and Diagnostic Imaging and Research, Copenhagen University Hospital Amager and Hvidovre, Denmark.
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Kim YH, Kang KC, Kim JN, Pai CN, Zhang Y, Ghanouni P, Park KK, Firouzi K, Khuri-Yakub BT. Patterned Interference Radiation Force for Transcranial Neuromodulation. Ultrasound Med Biol 2022; 48:497-511. [PMID: 34955292 DOI: 10.1016/j.ultrasmedbio.2021.11.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2021] [Revised: 11/06/2021] [Accepted: 11/10/2021] [Indexed: 06/14/2023]
Abstract
Compared with the conventional method of transcranial focused ultrasound stimulation using a single transducer or a focused beam, the compression and tensile forces are generated from the high-pressure gradient of a standing wave that can generate increased stimulation. We experimentally verified a neuromodulation system using patterned interference radiation force (PIRF) and propose a method for obtaining the magnitude of the radiation force, which is considered the main factor influencing ultrasound neuromodulation. The radiation forces generated using a single focused transducer and a standing wave created via two focused transducers were compared using simulations. Radiation force was calculated based on the relationship between the acoustic pressure, radiation force and time-averaged second-order pressure obtained using an acoustic streaming simulation. The presence of the radiation force was verified by measuring the time-averaged second-order pressure generated due to the radiation force, by using a glass tube.
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Affiliation(s)
- Young Hun Kim
- E. L. Ginzton Laboratory, Department of Electrical Engineering, Stanford University, Stanford, California, USA; Mechanical Convergence Engineering, Hanyang University, Seoul, Republic of Korea
| | - Ki Chang Kang
- E. L. Ginzton Laboratory, Department of Electrical Engineering, Stanford University, Stanford, California, USA; Mechanical Convergence Engineering, Hanyang University, Seoul, Republic of Korea
| | - Jeong Nyeon Kim
- E. L. Ginzton Laboratory, Department of Electrical Engineering, Stanford University, Stanford, California, USA
| | - Chi Nan Pai
- E. L. Ginzton Laboratory, Department of Electrical Engineering, Stanford University, Stanford, California, USA; Department of Mechatronics Engineering, Polytechnic School of the University of Sao Paulo, Sao Paulo, Brazil
| | - Yichi Zhang
- E. L. Ginzton Laboratory, Department of Electrical Engineering, Stanford University, Stanford, California, USA
| | - Pejman Ghanouni
- Department of Radiology, Stanford University, Stanford, California, USA
| | - Kwan Kyu Park
- E. L. Ginzton Laboratory, Department of Electrical Engineering, Stanford University, Stanford, California, USA; Mechanical Convergence Engineering, Hanyang University, Seoul, Republic of Korea.
| | - Kamyar Firouzi
- E. L. Ginzton Laboratory, Department of Electrical Engineering, Stanford University, Stanford, California, USA
| | - Burtus T Khuri-Yakub
- E. L. Ginzton Laboratory, Department of Electrical Engineering, Stanford University, Stanford, California, USA
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Nguyen DT, Berisha DE, Konofagou EE, Dmochowski JP. Neuronal responses to focused ultrasound are gated by pre-stimulation brain rhythms. Brain Stimul 2022; 15:233-243. [PMID: 34990877 DOI: 10.1016/j.brs.2022.01.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2021] [Revised: 12/29/2021] [Accepted: 01/01/2022] [Indexed: 11/29/2022] Open
Abstract
BACKGROUND Owing to its high spatial resolution and penetration depth, transcranial focused ultrasound stimulation (tFUS) is one of the most promising approaches to non-invasive neuromodulation. Identifying the impact of endogenous neural activity on neuromodulation outcome is critical to harnessing the potential of tFUS. OBJECTIVE Here we sought to identify the relationship between pre-stimulation neural activity and the neuronal response to tFUS. METHODS We applied 3 min of continuous-wave tFUS to the hippocampal region of the rat while recording local field potentials (LFP) and multi-unit activity (MUA) from the target. We also tested the application of tFUS but with an air gap separating the transducer and the skull, as well as active stimulation of the contralateral olfactory bulb. RESULTS We observed a modest but significant increase in firing rate during hippocampal tFUS, but not during stimulation of the olfactory bulb or when an air gap was present. Importantly, the observed firing rate increase was significantly modulated by the power of baseline oscillations in the LFP, with low levels of delta (1-3 Hz) and high levels of theta (4-10 Hz) and gamma (30-250 Hz) power producing significantly larger firing rate increases. Firing rate increases were also amplified by a factor of 7× when stimulation was applied during periods of frequent sharp-wave ripple (SWR) activity. CONCLUSION Our findings suggest that baseline brain rhythms may effectively "gate" the response to tFUS.
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Affiliation(s)
- Duc T Nguyen
- Department of Biomedical Engineering, City College of New York, United States
| | - Destiny E Berisha
- Department of Biomedical Engineering, City College of New York, United States
| | - Elisa E Konofagou
- Department of Biomedical Engineering, Columbia University, United States
| | - Jacek P Dmochowski
- Department of Biomedical Engineering, City College of New York, United States.
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