X-ray microanalysis of developing and mature inner ear.

X-ray microanalysis technique is a new tool in inner ear research. According to the literature in this field only the energy dispersive type of analysis has been used. Data obtained from X-ray microanalysis are in agreement with results using other techniques, mainly fluid withdrawal from the endo- and perilymphatic spaces. The introduction of serial sectioning (16 microns thick sections) of the temporal bone for microanalysis now also permits analysis of embryonic material with its delicate structures too small for other techniques. The energy dispersive technique is thus suitable for analysis of both biological fluids and tissues. Studies have so far been focused on mainly normal conditions in the embryonic and adult labyrinth.