RESUMO
A new method for diagnosing human malignant tumors is dealt with, which is based on fluorescence of malignant neoplasms and their adjacent normal tissue. To measure the fluorescence spectra, a fiber optic system and a multi-channel optic spectral analyser have been designed. While analysing the resultant spectra, a greater fluorescence excess was observed in the red wave band in the tumors than in normal tissue. Further investigations are required in order to use the method in question in clinical diagnosis.
Assuntos
Fluorescência , Neoplasias de Cabeça e Pescoço/diagnóstico , Biópsia , Diagnóstico Diferencial , Endoscopia , Neoplasias de Cabeça e Pescoço/patologia , Humanos , Lasers , Neoplasias Labiais/diagnóstico , Neoplasias Labiais/patologia , Neoplasias da Língua/diagnóstico , Neoplasias da Língua/patologiaRESUMO
Acupuncture points were exposed to helium-neon laser beam in 200 anginal patients. This therapeutic modality yielded good results: the number of attacks and nitroglycerin intake reduced, exercise tolerance grew, echocardiographic evidence showed a positive trend, hemodynamics improved, Spilberger's test values changed for the better.