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Related Experiment Video

Updated: Feb 11, 2026

Author Spotlight: Development of a Laser-Induced Shock Wave Animal Model Without Tympanic Membrane Perforation
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Inducing Different Brain Injury Levels Using Shock Wave Lithotripsy.

Afshin A Divani1,2,3, Pascal Salazar4, Manoj Monga5

  • 1Department of Neurology, University of Minnesota, Minneapolis, Minnesota, USA.

Journal of Ultrasound in Medicine : Official Journal of the American Institute of Ultrasound in Medicine
|April 25, 2018
PubMed
Summary
This summary is machine-generated.

This study demonstrates that varying the number of shock wave (SW) pulses can induce different severities of traumatic brain injury (TBI) in rats. This establishes a new model for studying SW-induced TBI.

Keywords:
anxietyaxonal damagebrain injuryfunctional outcomeslithotripsyratsshock wave-induced traumatic brain injuryvasospasm

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Area of Science:

  • Neuroscience
  • Biomedical Engineering
  • Trauma Research

Background:

  • Traumatic brain injury (TBI) is a significant health concern.
  • Developing reliable models to study TBI is crucial for advancing research.
  • Lithotripsy technology offers a potential method for inducing controlled brain injury.

Purpose of the Study:

  • To determine the feasibility of using lithotripsy-generated shock waves (SW) to induce varying severities of traumatic brain injury (TBI).
  • To establish a reproducible SW-induced TBI model in Wistar rats.
  • To characterize the neurological and histological outcomes associated with different SW pulse counts.

Main Methods:

  • Wistar rats were divided into two groups, receiving either 5 or 15 SW pulses to the frontal cortex.
  • Neurological and behavioral assessments were conducted at multiple time points post-injury.
  • Cerebral angiography and histological analysis were performed to evaluate vascular damage and brain tissue integrity.

Main Results:

  • Group 2 (15 SW pulses) exhibited significantly higher neurological deficits and anxiety levels compared to Group 1 (5 SW pulses).
  • More severe cerebral vasospasm and higher histological damage scores were observed in the group receiving more SW pulses.
  • Behavioral recovery patterns differed significantly between the two groups, with Group 1 showing faster recovery.

Conclusions:

  • The number of SW pulses delivered directly correlates with the severity of induced TBI.
  • This study successfully established a novel SW-induced TBI model capable of producing differential injury severities.
  • The findings support the use of this model for investigating TBI pathophysiology and therapeutic interventions.