Naslov
ULTRASONIC CONTACT PROBE, AN EXPERIMENTAL STUDY

Autori
Štimac, Dinko ; Paladino, Josip ; Štimac, Alan

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Zbornik radova / - , 1999

Skup
Drugi Hrvatski Neurokirurški Kongres

Mjesto i datum
Opatija, Hrvatska, 20.10.1999. - 23.10.1999

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
CUSA; ultrasound; probe

Sažetak
A new contact ultrasonic probe was made (1.6 mm in diameter), and its effect was studied on 120 rats brain. Ultrasonic energy of this probe was applied on Wistar rats cortex and subcortial matter in frontoparietal region. Different power and duration of ultrasonic energy were used. The animals were sacrified in different period after surgery. Light microscopy and electron microscopy were than applied. Ultrasonic contact probe caused minimal lesion of surrounding brain tissue. A small zone of termic lesion has been noted as well as very small zone of microstructural disturbances. A three different zones of changed brain tissue were found: dezintegration zone immediatelly around ultrasonic probe; termic lesion zone and zone of micromolecular structures lesion (ER, mitochondria, nucleus membrane, lisosoms). All of these lesions depends lineary of applied ultrasonic energy power as well as time of exposition. Therefore, contact ultrasonic probe seems to be an useful instruments for endoscopically assisted neurosurgery (e.g. third ventriculostomy). Our further intention is going to this contact ultrasonic probe in clinical investigations.

Izvorni jezik
Engleski

Znanstvena područja
Elektrotehnika

POVEZANOST RADA