Four hundred fifty eight cases of double contrast radiography of the stomach are reported in this paper.It introduces the preparation and application of supplementary drugs as well as the maneuver,and also discusses the value of such a technique. Before performance of the double contrast examination, the first thing to be done is to wash out the mucus of the stomach with 1 gm Sippy's powder No 2 and 1 gm sodium chloride dissolved in 100 ml of water (warm boiled water). The results of 210 cases observed by this technique were that more than one-fourth of the posterior wall of the stomach were shown in 63.9% of patients, while only 22% of patient in the control group. Thus,the early and tiny lesions of the stomach may be discovered effectively by this maneuver. Among a series of 224 positive cases 31 cases(13.8%)of early and tiny lesions were found by such examination. These lesions may be missed or misdiagnosed by conventional method.

In this study, we reviewed the data from 71 cases of hepatic hemangiomas (146 lesions). It was found that magnetic resonance imaging was much better than ultrasound (US) and computed tomograpgy (CT) in the diagnosis of hepatic hemangiomas. For US and CT, most of the undetected were in the left lobe and the areas near the surface of which right lobe; Most of the misdiagnosed were smaller than 3cm or larger than 4cm, many of them were misdiagnosed as hepatic cancer. The proportion of atypical lesions were 33.3%, 39.4%, 1.4% by US, CT and MRI, respectively. So, in our opinion, MRI is the best way in the diagnosis of hepatic hemangioma, especially for the atypical lesions.