RAPID SERIAL ANGIOGRAPHY: PRELIMINARY REPORT

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Abstract
Apparatus capable of taking 25 X-ray pictures, 8 x 10 inches, at intervals of 1/2, 2/3 or 1 sec., timed by electrical circuits and driven by a constant-speed electric motor, is described. Serial angiograms of 1 normal and 1 pathological case injd. over 2 sec. with 10 ml. of 35% diodone were made with the first exposure coincident with the beginning of the injn. Exposures were 1/5 sec. long at intervals of 2/3 sec., the X-ray tube being set at 150 MA and 85 kV. The diodone reached the genu of the anterior cerebral artery 2/3 sec after the beginning of the injn., indicating a velocity of 30 cm./sec. The first veins filled at 2.66 sec., these being parts of the deep drainage system. The superficial venous drainage appeared at 3.33 sec. at the sylvian point. Venous contrast ended at 12 sec. In the pathological case an angiomatous malformation showed slow circulation.

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