Theodore Maiman built the first laser in 1960.(Ruby laser) The following are the basic characteristics of laser beam: coherent→ the photons or waves travels in step or in phase c
It is the phenomenon of being able to focus one’s auditory attention on a particular stimulus while filtering out range of other stimulus. It works best as a bin-aural effect
The following are the head and neck and skull base tumours treated by embolization. commonly treated tumours Meningioma (skull base most benefited) Paraganglioma(skull base most benefited) Juvenile angiofibroma Hemangiopericytoma Less