. The American journal of roentgenology, radium therapy and nuclear medicine . t-termilk meal the appendix is more readilyfilled than with other meals, so it is likelythat diverticula are more readily filledwith this type of meal. Twenty-four hours after the meal weiind the best filling of the colon. It is onthis plate that the diverticula are first vis-ualized. As a frecjuent site for the diverti-cula is near the mesenteric attachment, itis obvious that in a simple antero-posteriorplate these shadows may be hidden by themass of barium filling the lumen of thecolon. Palpation under the fluoros
. The American journal of roentgenology, radium therapy and nuclear medicine . t-termilk meal the appendix is more readilyfilled than with other meals, so it is likelythat diverticula are more readily filledwith this type of meal. Twenty-four hours after the meal weiind the best filling of the colon. It is onthis plate that the diverticula are first vis-ualized. As a frecjuent site for the diverti-cula is near the mesenteric attachment, itis obvious that in a simple antero-posteriorplate these shadows may be hidden by themass of barium filling the lumen of thecolon. Palpation under the fluoroscopicscreen or stereoscopic plate may bring tolight some of these hidden diverticula(Figs. 3-6). As these pockets tend to retain the bar-ium over a prolonged period, we havefound that plates made thirty-six to forty-eight hours after the meal show the diver-ticula to the best advantage. At this timethe lumen of the colon will be entirely frefof the barium meal, and the barium-filleddiverticula stand out clear and distinct. The Roentgen Ray in Diverticulitis of the Colon 431. [G. 19. Diverticula at A and B, with narrowing ofcolon at B. Barium enema. Class II. It of importance to determine the length3f time barium is retained in these pockets,rhis. of course, is variable and depends upon:he type of diverticulum. \\> have observed:ases where plates made not only days butkveeks after the meal still showed evidence ofbarium in the diverticulum. The examination with the barium mealshould always be followed up with the bar-ium enema. The enema is not so satisfactoryIS the meal for visualizing the actual diverti-:ula. The pockets do not fill readily, perhaps {To be concluded in for the same reason that the appendixis not filled by the enema. Again, thecolon is usually so distended by the en-ema that the mass of barium very easilyobscures many of the diverticula. Theenema is of value, however, in bringingout some of the secondary pathologicchanges, such as chronic thickening ofth
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