Determining ablation depth and laser-tissue interaction

Kód výsledku v IS VaVaI

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Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Determining ablation depth and laser-tissue interaction

Popis výsledku v původním jazyce

The type of the laser beam’s interaction with tissue depends on the configuration of the laser (wavelength, energy density, pulse duration) as well as on the tissue’s parameters. From a biomedical point of view the most interesting ones are the photoablative interactions, which effectively remove tissue via decomposition without excessive heat damage to the remaining tissue. To create an ablation crater the tissue must be exposed to a laser beam with a power density from 107 to 1010 W* cm-2 for 10 to 100 ns, the most common type used for photoablation being excimer lasers. [1] Thickness of the material extracted by a single pulse is called the ablation depth. Knowledge of the depth is key to plan out concrete medical procedures, it enables to precisely ascertain the amount of pulses required. We have developed a new method of measuring the ablation depth using CT imagery of the ablation craters, the results of which we compared to results available in literature [3,4] and values gained through other methods using the same samples.

Název v anglickém jazyce

Determining ablation depth and laser-tissue interaction

Popis výsledku anglicky

The type of the laser beam’s interaction with tissue depends on the configuration of the laser (wavelength, energy density, pulse duration) as well as on the tissue’s parameters. From a biomedical point of view the most interesting ones are the photoablative interactions, which effectively remove tissue via decomposition without excessive heat damage to the remaining tissue. To create an ablation crater the tissue must be exposed to a laser beam with a power density from 107 to 1010 W* cm-2 for 10 to 100 ns, the most common type used for photoablation being excimer lasers. [1] Thickness of the material extracted by a single pulse is called the ablation depth. Knowledge of the depth is key to plan out concrete medical procedures, it enables to precisely ascertain the amount of pulses required. We have developed a new method of measuring the ablation depth using CT imagery of the ablation craters, the results of which we compared to results available in literature [3,4] and values gained through other methods using the same samples.

Druh

D - Stať ve sborníku

CEP obor

BH - Optika, masery a lasery

OECD FORD obor

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Projekt

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Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2016

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

16th Conference on Human Biomechanics 2016 – Conference proceedings

ISBN

9788001060391

ISSN

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e-ISSN

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Počet stran výsledku

2

Strana od-do

58-59

Název nakladatele

Faculty of biomedical engineering, Department of Natural sciences

Místo vydání

Kladno

Místo konání akce

Kladno

Datum konání akce

7. 11. 2016

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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