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1 From the Department of Diagnostic Radiology, Aichi Cancer Center Hospital, Nagoya, Japan
Selective arterial catheterization by Seldinger's technique was performed in 52 cases, apart from 3 cases of carotid artery puncture, followed by injection of radio-iodinated (I131- or I125-) MAA in doses of 250-500 µc (1-5 mc of higher specific activity) into the arteries through the catheter or needle.
Serial scintigraphy was made daily until the tumor became positively delineated from the surrounding normal tissue or for at least 2 weeks if this did not occur.
In most of the cases of tumor, a positive scintigram was obtained. Non-neoplastic cases were essentially negative. Surgically
[See figure in the pdf file]
removed specimens contained higher radioactivity in the neoplastic tissues than in the normal or non-neoplastic tissues.
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