DOUBLE CONTRAST CYSTOGRAPHY USING UNIVERSAL GYROSCOPIC X-RAY TV APPARATUS

A Gyroscopic Diagnostic X-ray Apparatus with closed circuit television was used in double contrast cystography of urinary bladder tumors.

Using the methods described, roentgenograms of much better quality were consistently and more easily obtained than with conventional double contrast cystography.

Relief patterns and filling defects of all tumors in various positions were easily obtained using appropriate projections with closed circuit television control. The relief patterns and filling defects of papillary tumors exceeding 10x10 mm. were readily demonstrated. Papillary tumors less than 10x10 mm. and polypoid tumors with smooth flat surfaces were visualized only as filling defects. Tumor pedicles were demonstrable with multiple projections. The sites and sizes of tumors were accurately established roentgenographically.

Information as obtained in this study greatly facilitates the outlining of radiation ports and the estimation of the effects of radiotherapy for bladder tumors.

The x-ray apparatus used here has considerable promise in roentgenologic studies of the urinary tract.

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