Two-dimensional mapping of the ultrasonic attenuation and speed of sound in brain

Labuda, Cecille; Newman, Will R.; Hoffmeister, Brent K.; Chambliss, Claudia K.M.

doi:10.1016/j.ultras.2022.106742

Cited by 8 publications

(1 citation statement)

References 32 publications

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“…Brain tissue has been reported to exhibit attenuation coefficient of ≈0.75-1.45 dB cm −1 in the 1 MHz frequency. [34,35] Muscle tissues have been reported to exhibit a slightly higher attenuation coefficient, of 1 .3 to 3.3 dB cm −1 . [36][37][38] This means that acoustic waves passing through both tissues with a fixed thickness will be affected differently, with higher attenuation for waves passing through the muscle tissue, in comparison to the brain, leading to different Young's modulus values.…”

Section: Ultrasound Mediated Polymerization Through Large Tissues And...mentioning

confidence: 99%

Ultrasound Mediated Polymerization for Cell Delivery, Drug Delivery, and 3D Printing

Debbi,

Machour,

Dahis

et al. 2024

Small Methods

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Safe and accurate in situ delivery of biocompatible materials is a fundamental requirement for many biomedical applications. These include sustained and local drug release, implantation of acellular biocompatible scaffolds, and transplantation of cells and engineered tissues for functional restoration of damaged tissues and organs. The common practice today includes highly invasive operations with major risks of surgical complications including adjacent tissue damage, infections, and long healing periods. In this work, a novel non‐invasive delivery method is presented for scaffold, cells, and drug delivery deep into the body to target inner tissues. This technology is based on acousto‐sensitive materials which are polymerized by ultrasound induction through an external transducer in a rapid and local fashion without additional photoinitiators or precursors. The applicability of this technology is demonstrated for viable and functional cell delivery, for drug delivery with sustained release profiles, and for 3D printing. Moreover, the mechanical properties of the delivered scaffold can be tuned to the desired target tissue as well as controlling the drug release profile. This promising technology may shift the paradigm for local and non‐invasive material delivery approach in many clinical applications as well as a new printing method – “acousto‐printing” for 3D printing and in situ bioprinting.

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Section: Ultrasound Mediated Polymerization Through Large Tissues And...mentioning

confidence: 99%

Ultrasound Mediated Polymerization for Cell Delivery, Drug Delivery, and 3D Printing

Debbi,

Machour,

Dahis

et al. 2024

Small Methods

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show abstract

Standardised quantitative ultrasound imaging approach for the contact-less three-dimensional analysis of neocartilage formation in hydrogel-based bioscaffolds

et al. 2022

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Ultrasound normalized cumulative residual entropy imaging: Theory, methodology, and application

Gao,

Tsui,

et al. 2024

Computer Methods and Programs in Biomedicine

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Two-dimensional mapping of the ultrasonic attenuation and speed of sound in brain

Cited by 8 publications

References 32 publications

Ultrasound Mediated Polymerization for Cell Delivery, Drug Delivery, and 3D Printing

Ultrasound Mediated Polymerization for Cell Delivery, Drug Delivery, and 3D Printing

Standardised quantitative ultrasound imaging approach for the contact-less three-dimensional analysis of neocartilage formation in hydrogel-based bioscaffolds

Ultrasound normalized cumulative residual entropy imaging: Theory, methodology, and application

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