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Comparison of holmium and flashlamp pumped dye lasers for use in lithotripsy of biliary calculi
Author(s) -
Spindel Mitchell L.,
Moslem Ali,
Bhatia Kuldip S.,
Jassemnejad Bahaeddin,
Bartels Kenneth E.,
Powell Richard C.,
O'Hare Ciaran M.,
Tytle Tim
Publication year - 1992
Publication title -
lasers in surgery and medicine
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.888
H-Index - 112
eISSN - 1096-9101
pISSN - 0196-8092
DOI - 10.1002/lsm.1900120505
Subject(s) - lithotripsy , laser , holmium , laser lithotripsy , materials science , fragmentation (computing) , dye laser , wavelength , optics , far infrared laser , optoelectronics , surgery , medicine , physics , computer science , operating system
The characteristics of laser lithotripsy of biliary calculi are compared for a flashlamp pumped dye laser (λ = 640 nm) and a Cr: Tm:Ho‐YAG laser (λ = 2.1 μm). Data on fragmentation efficiency with respect to laser power and pulse repetition rate are presented for different types of stones. It is shown that both lasers can produce effective stone fragmentation. The laser power required for efficient fragmentation characteristics is significantly less for the visible wavelength laser. However, the problems associated with damage to the fiber tips of the delivery system during operation were found to be less with the near infrared wavelength. The laser power for efficient fragmentation with the dye laser varies significantly for different types of stones while the power for efficient fragmentation with the hohnium laser is the same for all stones. © 1992 Wiley‐Liss, Inc.