Ultrasonic and histopathological correlations of deep focal hepatic lesions induced by stereotaxic Nd-YAG laser applications
- 31 December 1988
- journal article
- research article
- Published by Elsevier BV in Japanese Journal of Clinical Oncology
- Vol. 14 (4), 287-291
- https://doi.org/10.1016/0301-5629(88)90094-4
Abstract
Thirty six deep focal hepatic lesions were induced in eleven piglets by means of an Nd-YAG laser. Laser shots of 80 W power and 10 s duration were used, the beam being transmitted through an echoguided stereotaxic handpiece. From day 0 to day 120, the animals underwent ultrasonographic and morphological controls. At lasering time an hyperechoic image--12-18 mm in diameter--appeared due to boiling of tissue water. During the twenty postoperative days the lesion core was an echo-free area due to tissue vaporization, surrounded by an hyperechoic ring of increasing fibrosis, containing neovascularization and biliary ductules, while the hypoechoic outer area represented the peripheral halo of edema. In the long term, hyperechoic structures--swollen fibrotic septa of homogeneous fibrotic network--invaded the lesion site confirming good healing.Keywords
This publication has 9 references indexed in Scilit:
- Separate and combined use of Nd-YAG and carbon dioxide lasers in liver resections: A preliminary reportLasers in Medical Science, 1986
- Effects of Nd: YAG laser photoradiation on intra‐abdominal tissues: A histological study of tissue damage versus power density appliedLasers in Surgery and Medicine, 1986
- Thermal and morphological effects of hepatic blood flow variations during liver resections with the Nd-YAG laserLasers in Medical Science, 1986
- Hepatic Resection With an Nd.YAG Laser in PigLasers in Surgery and Medicine, 1983
- Experimental comparative study on morphological effects of different lasers on the liverZeitschrift für Die Gesamte Experimentelle Medizin, 1982
- Experimental study of partial liver resection with a combined CO2 and Nd:YAG laserLasers in Surgery and Medicine, 1982
- Theoretical and Experimental Investigations Prove Nd: YAG Laser Treatment to Be SafeLasers in Surgery and Medicine, 1981
- Experimental liver and kidney surgery with CO2, CO, holmium, and neodym lasersLangenbecks Archives Of Surgery, 1980
- Morphologische Befunde bei Schnittversuchen an der Rattenleber mittels Neodym-LaserBiomedizinische Technik/Biomedical Engineering, 1974