Puslapis 1 nuo 1175 rezultatus
Laser hyperthermia using Nd-YAG laser was studied experimentally and clinically to treat deep-seated brain tumors. Histological changes, temperature profile, and modification of the blood-brain barrier were studied using cat and rat brains. In a clinical study 5 patients with brain tumors were
Experimental studies have shown that once the appropriate laser parameters are defined, interstitial laser hyperthermia (ILH) can produce well-defined, predictable tissue necrosis in solid viscera which heal safely with little functional or structural sequelae. Preliminary clinical studies have
Table 2 provides a comparison of these interstitial and in situ techniques, assessing several criteria and utilizing and expanding on an excellent review by Masters et al. The rapid advance of technology and cross-fertilization between groups using different interstitial techniques will lead to a
The clinical applications of non-laser thermal techniques are limited by technical and practical problems. Experimentally, Interstitial Laser Hyperthermia (ILH) is a feasible technique for producing precise, well defined and predictable areas of tissue necrosis which heal safely in normal liver and
Experimental results for the optical distribution and temperature rise during laser irradiation of tumors are presented. The experimental conditions are chosen to simulate laser irradiation of ocular tumors. The tumor models are human retinoblastoma heterotransplanted in athymic mice, murine mammary
Operative laparoscopy can replace hysterectomy in the treatment of submucous and subserosal uterine fibromyomas. Interstitial myomas are still treated using traditional methods. Using an Nd:YAG laser with a quartz fibre which diffuses the ray, we induced delayed necrosis of myoma secondary to the
BACKGROUND
Whole body hyperthermia has been shown to be highly effective in preconditioning cardiac tissue against reperfusion injury. The current study was aimed to assess the ability of regional sublethal laser-induced hyperthermia to precondition cardiac tissue against ischemic-induced myocardial
Three patients undergoing laser surgery of the vagina developed high fevers that later regressed, one of them without treatment. The possible causes and implications of these cases are discussed.
BACKGROUND
Recently, nanoparticles have been demonstrated to have tremendous merit in terms of improving the treatment specificity and thermal ablation effect on tumors. However, the potential toxicity and long-term side effects caused by the introduced nanoparticles and by expelling them out of the
Twelve patients were treated with laser-induced hyperthermia. Eight had liver metastases from breast cancer or colorectal cancer, and four were treated for a primary tumour, two in the liver, one in the biliary tract and one in the pancreas. The mean diameter of the metastases was 2.5 cm and of the
Whatever the medical field of application of lasers, their future is linked to research and to the realization of systems of automatization which will allow the development of "smart lasers". It will be linked to the improvement of imaging techniques and of medical computers, as well as to the
The aim of this paper is to present a novel laser technology utilizing the erbium YAG laser for various minimally invasive, non-surgical procedures in gynecology. Non-ablative, thermal-only SMOOTH-mode erbium pulses are used to produce vaginal collagen hyperthermia, followed by collagen remodeling