10 hasil
Computer simulations have been conducted to examine hyperthermia and ablation for treating ocular tumors. An interactive software package has been implemented that permits relevant tissue dimensions to be determined from B-mode data. This package also permits interactive beam positioning, and it
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
Ferromagnetic (FM) thermoseeds and radioactive (125I) seeds were combined in an episcleral plaque to give concurrent hyperthermia and irradiation for enhanced tumour destruction. A Greene melanoma cell line was utilized to study the interaction between these treatment modalities. We attached five FM
The paper is concerned with the results of experimental investigation of the effect of different microwave radiation ranges on some segments of the rabbit's eye and its clinical application to the treatment of malignant tumors of the lid and orbit. It has been shown that the effect of definite
BACKGROUND
Combined modality therapy for childhood retinoblastoma holds the potential of decreasing treatment-related morbidity while maintaining excellent tumor control rates.
OBJECTIVE
To evaluate the efficacy of external beam radiation therapy (EBRT), ferromagnetic hyperthermia (FMH), and the
OBJECTIVE
This study examined the relative merits of different ultrasonic beams and exposure modalities for treating ocular melanomas.
METHODS
Simulations were conducted to evaluate temperature patterns and lesion shapes induced by intense-ultrasound treatment of ocular tumors. In-vitro
In patients successfully treated for hereditary retinoblastoma, the risk of developing a second non-ocular tumor has been reported. We report the first case of primary hepatic leiomyosarcoma in a 39 year-old woman who has been treated 37 years before for hereditary retinoblastoma of the left eye.
Computer simulations are being performed to model the temperature patterns produced during ultrasonically induced hyperthermia of ocular tumours. The software package for these simulations incorporates operator interaction and uses tissue geometry obtained from B-mode data. Previous studies used
A special microwave stripline applicator (2450 MHz) has been designed for the hyperthermic treatment of eye tumours, especially retinoblastoma. The measured microwave absorbed power distribution was put into a thermal finite difference computer model of the human and rabbit eye to calculate the
Since more than a century ago, temperatures above 40 degrees C have been known to be effective in cancer treatment. Since that time numerous studies have documented that hyperthermia alone causes tumor regression and that the therapeutic effect depends on the amount and duration of heat delivered to