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Long-time temperature rise due to absorption of focused Gaussian beams in tissue
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10.1121/1.2359695
/content/asa/journal/jasa/120/6/10.1121/1.2359695
http://aip.metastore.ingenta.com/content/asa/journal/jasa/120/6/10.1121/1.2359695
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

On-axis steady-state temperature rise as a function of axial distance. Maximum intensity , transducer , focal , . Perfusion length , absorption . Solid line—numerical integration of convolution integral. Dotted line—asymptotic model.

Image of FIG. 2.
FIG. 2.

Same as in Fig. 1, except is increased to . Solid line—numerical integration of convolution integral. Dotted line—asymptotic model.

Image of FIG. 3.
FIG. 3.

Same as in Fig. 1, except and . Solid line—numerical integration of convolution integral. Dotted line—asymptotic model.

Image of FIG. 4.
FIG. 4.

Time history for the maximum (focal zone) temperatures in Fig. 3. Solid line—numerical integration of convolution integral. Dotted line—asymptotic model.

Image of FIG. 5.
FIG. 5.

Equilibrium time as a function of absorption, with the other conditions as in Fig. 3.

Image of FIG. 6.
FIG. 6.

Steady-state temperature rise computed using the expression for general transducers [Eq. (20)]. Conditions used by Ellis and O’Brien (1996) (, , , , , ) apply.

Image of FIG. 7.
FIG. 7.

Steady-state temperature rise at the focus, as a function of transducer diameter. Transducer focal length was maintained at while diameter was varied. Frequency is , absorption , and perfusion length . Solid line—numerical integration of convolution integral. Dotted line—asymptotic model.

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/content/asa/journal/jasa/120/6/10.1121/1.2359695
2006-12-01
2014-04-20
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Long-time temperature rise due to absorption of focused Gaussian beams in tissue
http://aip.metastore.ingenta.com/content/asa/journal/jasa/120/6/10.1121/1.2359695
10.1121/1.2359695
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