The apparatus presented herewith has been devised for the purpose of facilitating roentgenography of the sinuses, particularly when the horizontal ray is to be utilized. It is of special advantage to use an apparatus that will permit roentgenograms of the head to be taken with the patient in the sitting position, regardless of whether or not it is thought necessary to use the horizontal ray. This advantage is greatly increased when the latter technic is adhered to. It is my belief that the use of the horizontal ray in roentgenography of the sinuses is at all times desirable, but especially so in those cases in which filling with a contrast medium is employed. Thus, the fluid level is clearly defined, and by changing the position of the head it is possible virtually to reconstruct the cavity to be studied by means of exposures made in the three planes: postero-anterior, lateral
BAUM HL. A NEW APPARATUS FOR ROENTGENOGRAPHY OF THE SINUSES. Arch Otolaryngol. 1930;11(1):90–94. doi:10.1001/archotol.1930.03560010100008
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