Abstract
The radiologic properties of the ferrite solution ware the subject of our previous report. This solution, when compared with barium sulfate solution, showed 1) lower x-ray absorption, 2) linear increasement in density by the high pressure exposure, 3) less flocculation in presence of strong acid, and 4) superior demonstrability both of elevated and depressed superficial changes.
In a series of animal experiments this medium had been used to show muscal chages, both of an ulcer and a cancer, which had been made in the stomach of various experimental animals. By these projections the ferrite solution found was demonstrated to be superior to the barium sulface solution, when used for coating the mucosal surface of the anterior wall.
This contrast medium was thus considered to fit into the demonstration of lesions of the anterior wall of the stomach.
It was difficult to demonstrate the experimenal ulcer by magnetic control, because we had no apparatus to change the direction of magnetics. On a level of these animal experiments toxicity of this medium was negligeible.
