Since the half-life of 99mTc is only 6.04hr, its massive dosing for an elevation of diagnostic accuracy is possible with reduced radiation exposure to the body. On 11 impotent cases, radioisotope penogram was performed with 99mTcO-4. The results indicate that the penogram curves obtained are satisfactorily favorable for diagnostic discrimination between organic impotence and functional impotence.
About this Journal The Tohoku Journal of Experimental Medicine (TJEM) was founded in 1920
by professors of Tohoku Imperial University, Medical School.
The TJEM has been published continuously, except for the year of 1946
just after the World War II.
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sciences.
The TJEM also covers the fields of disaster-prevention science,
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