Unknown

Dataset Information

0

Transmitted ultrasound pressure variation in micro blood vessel phantoms.


ABSTRACT: Silica, cellulose and polymethylmethacrylate tubes with inner diameters of ten to a few hundred microns are commonly used as blood vessel phantoms in in vitro studies of microbubble or nanodroplet behavior during insonation. However, a detailed investigation of the ultrasonic fields within these micro-tubes has not yet been performed. This work provides a theoretical analysis of the ultrasonic fields within micro-tubes. Numerical results show that for the same tube material, the interaction between the micro-tube and megaHertz-frequency ultrasound may vary drastically with incident frequency, tube diameter and wall thickness. For 10 MHz ultrasonic insonation of a polymethylmethacrylate (PMMA) tube with an inner diameter of 195 microm and an outer diameter of 260 microm, the peak pressure within the tube can be up to 300% of incident pressure amplitude. However, using 1 MHz ultrasound and a silica tube with an inner diameter of 12 microm and an outer diameter of 50 microm, the peak pressure within the tube is only 12% of the incident pressure amplitude and correspondingly, the spatial-average-time-average intensity within the tube is only 1% of the incident intensity.

SUBMITTER: Qin S 

PROVIDER: S-EPMC2566752 | biostudies-literature | 2008 Jun

REPOSITORIES: biostudies-literature

altmetric image

Publications

Transmitted ultrasound pressure variation in micro blood vessel phantoms.

Qin Shengping S   Kruse Dustin E DE   Ferrara Katherine W KW  

Ultrasound in medicine & biology 20080408 6


Silica, cellulose and polymethylmethacrylate tubes with inner diameters of ten to a few hundred microns are commonly used as blood vessel phantoms in in vitro studies of microbubble or nanodroplet behavior during insonation. However, a detailed investigation of the ultrasonic fields within these micro-tubes has not yet been performed. This work provides a theoretical analysis of the ultrasonic fields within micro-tubes. Numerical results show that for the same tube material, the interaction betw  ...[more]

Similar Datasets

| S-EPMC5383065 | biostudies-literature
| S-EPMC10774278 | biostudies-literature
| S-EPMC6556767 | biostudies-literature
| S-EPMC5243220 | biostudies-literature
| S-EPMC5494536 | biostudies-other
| S-EPMC9049233 | biostudies-literature
| S-EPMC7675105 | biostudies-literature
| S-EPMC3530622 | biostudies-literature
| S-EPMC8659365 | biostudies-literature
| S-EPMC3365917 | biostudies-other