Abstract
Abdominal ultrasonography is conducted as a medical examination procedure in numerous institutes. However, only a few institutes compile abdominal ultrasonography results and make a detailed report about them. Therefore, we collected such results for a year at Imabari Saiseikai Hospital to obtain the trends and frequencies of various diseases and determine the current status of abdominal ultrasonography in medical examination. As a result, abnormalities or normal variations were found with a high frequency (86.7%). Examination of internal organs, such as the liver, kidney and gallbladder, accounted for about 80% of all medical examinations. By gender, more males have fatty liver, gallbladder polyps and renal cysts than females. In particular, fatty liver was found in about 50% of all male medical examinees. The result also showed that gallbladder stones are significantly more frequently detected in females over the age of 60. Moreover, in both men and women, the number of cystic lesions (liver cysts and renal cysts) increases with age. Only two patients (0.11%) were found to have a malignant disease, which is a low frequency. From the collected results, most of the medical examinees did not have subjective symptoms, although they showed a high frequency of some abnormal findings or normal variations, which were mostly caused by an unhealthy lifestyle. The results are useful as a guide and ultrasonography will continue to be used in medical examination as it is noninvasive.
