Ultrasonic measurement of biparietal diameter in combining with analytical computer for determining fetal age

660 times of measurement of biparietal diameter in combining with analytical computer were performed on 74 female subjects of 16-42 week age of pregnancy (9 times for each subjects) to determine the fetal age. Results showed a close relation of biparietal diameter and fetus age. The speed of growth of biparietal diameter was high initially then lower gradually, with the age of 16-30 weeks, BD grown up 3 mm each week, and with the age of 31-37 weeks: 2 mm and 38-40 weeks: 1 mm

A Morphometric Study and Computerized Diagnosis of Well Differentiated Adenocarcinoma and Precancerous Lesions of Colon / 昆明医科大学学报

Using an automatic image analyser,we have determined 18 parameters(250 fields)about the glandular,cytologic and nuclear atypia of the colonic mucosa of well-differentiated tubular adenocarcinoma,of mild,moderate and severe atypical hyperplasia and of normal.Statistic re- sults showed that most parameters had remarkable differences among the 5 groups.By stepwise discriminatory analysis,we selected 4 parameters(NLM,NPM,NCR,GASD)which had ex- cellent coincidence rates(95.6% and 100%)with the actual pathological diagnosis in the 250 previous cases and 50 new cases.The computer diagnosis system provided an objective and simple method for the diagnosis of colonic adenocarcinoma and precancerous lesions.