Search: onr:"swepub:oai:lup.lub.lu.se:29291337-de7b-48af-9a9c-69d1c6fab51c" > Feedback interstiti...
Fältnamn | Indikatorer | Metadata |
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000 | 03310naa a2200337 4500 | |
001 | oai:lup.lub.lu.se:29291337-de7b-48af-9a9c-69d1c6fab51c | |
003 | SwePub | |
008 | 160404s1998 | |||||||||||000 ||eng| | |
024 | 7 | a https://lup.lub.lu.se/record/22584262 URI |
024 | 7 | a https://doi.org/10.1002/(SICI)1096-9101(1998)22:2<86::AID-LSM4>3.0.CO;2-S2 DOI |
040 | a (SwePub)lu | |
041 | a engb eng | |
042 | 9 SwePub | |
072 | 7 | a art2 swepub-publicationtype |
072 | 7 | a ref2 swepub-contenttype |
100 | 1 | a Ivarsson, K4 aut |
245 | 1 0 | a Feedback interstitial diode laser (805 nm) thermotherapy system: Ex vivo evaluation and mathematical modeling with one and four-fibers |
264 | 1 | c 1998 |
520 | a Background and Objective: In this study a newly developed microprocessor controlled power regulation and thermometry system integrated with a diode laser (805 nm wavelength) was evaluated with respect to temperature distribution, effectiveness of regulation, and ability to predict temperature distributions by computer simulation. Study Design/Materials and Methods: Experiments were performed in ground bovine muscle using either a single laser fiber or four-fibers. The target temperature at one (feedback) thermistor, placed 5 mm from one of the laser fibers, was set to 50 degrees C and was maintained by means of stepwise power regulation. The temperature distribution was monitored using multiple thermistor probes. A numerical model based on the bioheat equation was used to calculate the temperature distributions. Results: Temperature regulation was excellent with a tendency towards better regulation in the four-fiber than in the single-fiber experiments. Agreement between calculated and measured temperatures was good. The coagulated (>55 degrees C) and hyperthermic (>45 degrees C) volumes were 6 and 10-11 times larger, respectively, with four-fibers than with a single fiber. Conclusion: It is concluded that the stepwise power regulation system was efficient in maintaining a stable target temperature. The results indicate that the system can produce lesion volumes adequate for treating a relatively large tumor in a single session and that computer simulation may be useful for predicting temperature distribution. (C) 1998 Wiley-Liss, Inc. | |
650 | 7 | a NATURVETENSKAPx Fysikx Atom- och molekylfysik och optik0 (SwePub)103022 hsv//swe |
650 | 7 | a NATURAL SCIENCESx Physical Sciencesx Atom and Molecular Physics and Optics0 (SwePub)103022 hsv//eng |
700 | 1 | a Olsrud, J4 aut |
700 | 1 | a Sturesson, C4 aut |
700 | 1 | a Moller, P. H4 aut |
700 | 1 | a Persson, Bertil Ru Lund University,Lunds universitet,Medicinsk strålningsfysik, Lund,Sektion V,Institutionen för kliniska vetenskaper, Lund,Medicinska fakulteten,Medical Radiation Physics, Lund,Section V,Department of Clinical Sciences, Lund,Faculty of Medicine4 aut0 (Swepub:lu)radf-bpe |
700 | 1 | a Tranberg, K. G4 aut |
710 | 2 | a Medicinsk strålningsfysik, Lundb Sektion V4 org |
773 | 0 | t Lasers in Surgery and Medicineg 22:2, s. 86-96q 22:2<86-96x 0196-8092 |
856 | 4 | u http://dx.doi.org/10.1002/(SICI)1096-9101(1998)22:2<86::AID-LSM4>3.0.CO;2-Sy FULLTEXT |
856 | 4 8 | u https://lup.lub.lu.se/record/2258426 |
856 | 4 8 | u https://doi.org/10.1002/(SICI)1096-9101(1998)22:2<86::AID-LSM4>3.0.CO;2-S |
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