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American Journal of Roentgenology, Vol 102, 213-218, Copyright © 1968 by American Roentgen Ray Society

"FRACTIONAL LIFE EXPECTANCY" AS A NEW INDEX FOR ANALYZING THE RESULTS OF RADIOTHERAPY

K. C. TSIEN 1

1 From Temple University School of Medicine and Hospital, Philadelphia, Pennsylvania

This paper suggests the use of a new index for evaluating the results of treatment by irradiation. The index suggested is the ratio of the duration of survival of a patient after treatment to his normal life expectancy according to his population group. This index is designated as the "fractional life expectancy" (FLE).

The use of the FLE is illustrated by a study of the radiotherapy results of patients with T1 vocal cord cancer treated during 1950-1964 at the Temple University Hospital.


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Copyright © 1968 by the American Roentgen Ray Society.