title: Analysis and classification of secondary sounds from the disintegration of kidney stones with acoustic shock waves.
abstract: Secondary sound emission, partly in the audible frequency range, from shock wave disintegration of kidney stones has been recorded during the treatment of two patients. A skilled operator can determine by listening if the stone is hit by the shock-wave or not. Spectral analysis of these recordings show differences between the sounds which can be used to evaluate the fragmenting effect on the stone. Results are presented of a preliminary discriminating method based on parameters in an autoregressive signal model.
authors.affiliation: Division of Signal Processing, Luleå University of Technology, Sweden.
authors.forename: L
authors.initials: L
authors.lastname: Olsson
authors.forename: L O
authors.initials: LO
authors.lastname: Almquist
authors.forename: A
authors.initials: A
authors.lastname: Grennberg
authors.forename: N G
authors.initials: NG
authors.lastname: Holmer
mesh_terms: D006801:Humans; D007669:Kidney Calculi / Q000628:therapy*; D008096:Lithotripsy; D012815:Signal Processing, Computer-Assisted; D013018:Sound Spectrography