X-ray Scanning Kymography

Abstract

X-ray scanning Kymography is a kind of thickness measuring apparatus. It consists of 3 parts, scanner using X-ray microbeam, a couple of X-ray detectors and logarithmic differential amplifier system. The most important feature of this method is its quantitativeness in X-ray diagnosis. The logarithmic differential amplifier enables us to measure the thickness of human body within the error of 0. 1 per cent. Another feature is to record the movement of human organs continuously at any body section. This continuous scanning system enables us to analyze the movement of organs quantitatively. Following clinical applications were developed :
1) Measurement of mineral contents of bones.
2) Measurement of the volume of air, fluid and soft tissue in the body.
3) Quantitative analysis of pulmonary and cardiovascular functions.
4) Quantitative diagnosis using contrast media, for example, esophagus, stomach or urinary bladder, etc.
5) Application to radiotherapy programming.
The details of construction and clinical applications are presented in this paper.