METHOD AND DEVICE FOR SIMPLY DETERMINING RISK GROUP OF SQUAMOUS CELL CARCINOMA BY EXHALATION, AND ITS TUBE FOR FRACTIONAL SEPARATION OF 13C ACETALDEHYDE

摘要

PROBLEM TO BE SOLVED: To provide an easy and highly accurate method and its device for determining and diagnosing an incidence risk of squamous cell carcinoma.;SOLUTION: In the simple determination method for an incidence risk of squamous cell carcinoma, a change with time of acetaldehyde concentration in the exhalation is measured after a given amount of alcohol at a given concentration is taken in. If the acetaldehyde concentration rises rapidly or the decreasing rate with time of the acetaldehyde concentration is small, an incidence risk of squamous cell carcinoma is determined to be high. The alcohol which is taken in is labeled with ¹³C of a stable carbon isotope, and the concentration of ¹³C acetaldehyde in the exhalation is measured.;COPYRIGHT: (C)2008,JPO&INPIT