REVEALED BY ROENTGENKYMOGRAPHY *

ROENTGENKYMOGRAPHY is so new an addition to the diagnostic procedures of roentgenology that few physicians in general practice are aware of its value and diagnostic indications. The writer is of the opinion that the method has a wide field of usefulness and that it will come into general use in radiological practice as soon as its various applications are more generally known. Roentgenkymography differs from.other roentgenographic methods in that its single function is to record movement (and negatively, the absence of move-ment in organs or parts of the body that normally have movement). With this method it is possible to make a permanent graphic record of the movement of any part or organ of the body that can be depicted in the ordinary roentgeno-gram. Often the movement curves are susceptible of quantitative and qualita-tive analysis of great accuracy. Ventricular, auricular, and arterial movement curves are characteristic and show characteristic modifications in certain cardio-vascular diseases. Movements of the diaphragm, gastrointestinal canal, de-glutition, articulations, chest wall, etc., may be studied in the fixed curves of * Received for publication April 23, 1936