Acoustic transmission losses and field alterations due to human scalp hair
Hair is a potential transmission barrier for diagnostic and therapeutic ultrasound. We tested hair phantoms for insertion losses and field effects at 0.27-2.8 MHz. The negligible losses observed below 0.5 MHz suggest that, at such frequencies, hair removal is unnecessary for low-power imaging or the...
| Veröffentlicht in: | IEEE transactions on ultrasonics, ferroelectrics, and frequency control. - 1999. - 52(2005), 8 vom: 08. Aug., Seite 1415-9 |
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| Format: | Aufsatz |
| Sprache: | English |
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2005
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| Zugriff auf das übergeordnete Werk: | IEEE transactions on ultrasonics, ferroelectrics, and frequency control |
| Schlagworte: | Letter Research Support, N.I.H., Extramural Research Support, U.S. Gov't, P.H.S. |