利用射线照相放大技术对狗和猴子的小肠绒毛进行体内示证。
In vivo demonstration of small intestinal villi in dogs and monkeys using radiographic magnification.
作者信息
Goldberg H I, Gould R, Rosenquist J, Royal S, Owen R L, Silverman S
出版信息
Radiology. 1982 Jan;142(1):53-8. doi: 10.1148/radiology.142.1.7053547.
Direct radiographic magnification (3.6 x) and a microfocal spot radiographic tube (0.13 mm) were used in double contrast studies of intestinal villi in adult dogs and monkeys. The villi appeared as lucent lines surrounded by barium in profile, and as lucent dots en face; this was verified by specimen radiographic and histological analysis. The use of fast screen-film combination, motility depressant, microfocal spot tube, and air-gap technique produced a radiograph of greater detail than that obtained with conventional focal spot, source-image distance, and film-screen combination. The advantages and limitations of microfocal direct magnification radiography of the small intestine are discussed.
在成年犬和猴的小肠绒毛双对比研究中，使用了直接放射成像放大技术（3.6倍）和微焦点放射成像管（0.13毫米）。绒毛在侧面观时表现为被钡剂包围的透亮线，正面观时表现为透亮点；这通过标本放射成像和组织学分析得到了证实。使用快速增感屏-胶片组合、动力抑制剂、微焦点管和气隙技术所产生的射线照片比使用传统焦点、源-像距离和胶片-增感屏组合所获得的照片细节更多。本文讨论了小肠微焦点直接放大放射成像的优缺点。
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