J.Jpn. Surg. Soc.. 62(6): 535-567, 1961

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A STUDY OF GASTROCAMERA, ESPECIALLY FOR THE CARDIAC PORTION

The ready made gastrocamera, when we take a photograph of the lesser curvature in the cardiac portion or the posterior surface of the stomach, has touched to the mucosa. Then it is impossible to obtain good pictures. Because the suitable distance for the lense of this camera is from 4cm. to 6cm., and the tip of the camera angulates to 30 degree of angle. As the surface of the fornix is against to inserted direction of the camera, if the gastrocamera should angulate sufficiently at its tip, we would be able to take pictures of the fornix or cardiac portion.
From the above described facts, I have made the instrumental device of the gastrocamera, mentioned below:
1) The 5cm. long tip of the camera which includes lense and flashlamp is angulated to 80 degree of angle to ' Up ' direction (anterior flexion). With this flexion, I could take good pictures of the cardiac portion or all surface of the fornix from back-seeing position.
2) I make 45 degree of flexion the tip of the machine to ' Down ' direction (posterior flexion), and then could take a photograph of the lesser curvature of the fornix or the posterior surface of the upper ventricule, the upper greater curvature, from the inserting direction when set the joint of the machine at the esophago-cardial portion.
3) I have succeded to obtain more close-up pictures of the lesser curvature of the cadiac portion, when the machine is equipped with 3 × 6 cm. large clear ' vinyl-baloon ' at the 5cm. long tip.
684 patients were examined with gastrocamera from July 1957 to October 1958 in the Nakayama Surgical Department. 531 patients of them were examined with the ready made gastrocamera Type III. 153 patients of them with the back-seeing gastrocamera prepared newly. I had surely diganosis for 127 patients (83.0%) of 153 patients who were examined with the newly prepared machine for the lesion of the cardiac portion or upper stomach. It is additionally a notable fact with the newly prepared gastrocamera (back-seeing) that I could confirm as normal for 74 (86.0%) of 86 patients who were suspected diseases in the candiac portion with X-ray examination.
We are still difficult to make definite diagnosis for the various diseases in the cardiac portion, especially early carcinoma. I succeeded to take good photograph of the cardiac portion or fornix with ' back-seeing ' gastrocamera deviced, by myself and then I believe my gastrocamera has of clinical value to diagnosis for the lesion of the cardiac portion or fornix.
(Author's abstract)

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