ISSN:
1352-8661
Keywords:
MRI
;
laser surgery
;
ILP
;
real-time
;
rat liver
Source:
Springer Online Journal Archives 1860-2000
Topics:
Medicine
,
Physics
Notes:
Abstract Magnetic resonance imaging (MRI) is showing considerable promise as a monitor for interventional procedures. Laser surgery is “MRI compatible, ” and temperature-sensitive imaging techniques can be usefully applied to these procedures. We have been investigatingT 1derived temperature-dependent imaging as a monitor for interstitial laser photocoagulation (ILP) in rat liver.In vitro experiments suggested that temperature calibration may be achieved. We have investigated ILPin vivo using short TR spin-echo imaging sequences taking one set of images every 30 s during and after the procedure. Our resultsin vivo suggest that this simple model may be inadequate for temperature mapping as the biological reaction to the ILP is on a similar time scale to that of the procedure. Nonetheless, MRI shows well-defined, repeatable signal changes that can be related to histological borders.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01705257
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