Deep localized neodymium (Nd)-YAG laser photocoagulation in liver using a new water cooled and echoguided handpiece
| العنوان: | Deep localized neodymium (Nd)-YAG laser photocoagulation in liver using a new water cooled and echoguided handpiece |
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| المؤلفون: | J. M. Bourgeois, J. J. Eledjam, H. Ould-Said, P. Sambuc, G. Godlewski, Simone Rouy, C. Pignodel |
| المصدر: | Lasers in Surgery and Medicine. 8:501-509 |
| بيانات النشر: | Wiley, 1988. |
| سنة النشر: | 1988 |
| مصطلحات موضوعية: | Pathology, medicine.medical_specialty, Swine, chemistry.chemical_element, Dermatology, Light Coagulation, Neodymium, law.invention, Lesion, Liver Neoplasms, Experimental, Fibrosis, law, Parenchyma, Vaporization, medicine, Animals, Ultrasonography, business.industry, medicine.disease, Laser, Coagulative necrosis, Liver, chemistry, Nd:YAG laser, Surgery, Laser Therapy, medicine.symptom, business |
| الوصف: | Thirty-six deep hepatic lesions of localized photocoagulation were induced in 11 pigs by means of a neodymium-YAG laser. Laser applications of 80 W/10 sec (10.190 W/cm2) were transmitted through a handpiece coupled to a water-cooling circulation system to protect the quartz fiber and positioned through an echo-guided trocar. During irradiation, temperature was sufficient for vaporization up to 5 mm from the laser source and high enough for tumor cell kill at a 10-mm distance (54 degrees C/60 sec). Intraoperative ultrasound visualized increasing photocoagulation (12-18 mm), and further controls demonstrated an echo-free core of vaporization progressively covered by increasing fibrosis, well demarcated from normal parenchyma. Microscopy revealed central coagulative necrosis marginated from the third day by a growing fibrosis. By day 20 immunoblasts and mast cells were in profusion in the lesion border, and by day 120 a fibrotic network had invaded the scar and confirmed healing free of complication. This technique is proposed for deep vaporization of disseminated hepatic metastases. |
| تدمد: | 1096-9101 0196-8092 |
| الوصول الحر: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a42c5ca95f1daa172c35c6f84fbdf85bTest https://doi.org/10.1002/lsm.1900080509Test |
| حقوق: | CLOSED |
| رقم الانضمام: | edsair.doi.dedup.....a42c5ca95f1daa172c35c6f84fbdf85b |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 10969101 01968092 |
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