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Secondary sound cla...
Secondary sound classification for the assessment of focus positioning in shock-wave lithotripsy
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Grennberg, Anders (författare)
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- Almquist, Lars-Olof (författare)
- Lunds universitet
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- Holmner, Nils-Gunnar (författare)
- Lunds universitet
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- Olsson, Lennart (författare)
- Luleå tekniska universitet
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(creator_code:org_t)
- Lund : Medicinsk Teknik, 1993
- 1993
- Engelska.
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Ingår i: IX Nordic Meeting on Medical and Biological Engineering. - Lund : Medicinsk Teknik.
- Relaterad länk:
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https://ltu.diva-por... (primary) (Raw object)
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https://urn.kb.se/re...
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Abstract
Ämnesord
Stäng
- A problem encountered when using acoustic shock-waves for kidney stone disintegration is that the positioning of the focus relative to a stone, for the best possible fragmenting effect, is crtitical. The standard methods for focus positioning are ultrasound or x-ray imaging. These methods are, however, not always sufficient and a better indication of a well positioned focus would be valuable. The secondary sound emitted as a result of each shock-wave has been found to contain valuable information. A skilled operator is able to hear from the timbre of these sound pulses when the positioning of the focus is adequate. A method for the automatic evaluation of secondary sounds, using a computer, is developed in this work.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik -- Signalbehandling (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Signal Processing (hsv//eng)
Nyckelord
- Signalbehandling
- Signal Processing
Publikations- och innehållstyp
- vet (ämneskategori)
- kon (ämneskategori)