1988 年 1 巻 1 号 p. 11-20
Researches on neurosonology of the author performed for 30 years or more are reviewed with episodes of humor that have made him urge to work on ultrasound, both in practice and at laboratory. The postoperative follow-up study with the aid of echodiagnosis of A-mode and of B-mode tomography afforded an accurate and simple method to find the regression and growth of malignant processes of surgery and neurosurgery after treatment, and those results were supported by basic studies of ultrasonic absorption coefficient of human brains and live organs. Pulsatile echoencephalography was studied by the analysis of time factors with a lot of result, which revealed potentials of differentiating occluded locations of cerebral arterial occlusive diseases, as well as of determining the state of brain death. The author has also achieved basic studies and applications of ultrasonic destruction of malignant tumors by making a comparison with the radiation therapy.