By M. A. Kamm (auth.), Professor Dr. med. Peter Buchmann, Professor Dr. med. Werner Brühlmann (eds.)

Research of anorectal problems has turn into a truly large box attaining from case historical past and straightforward undeniable radiography to complicated options corresponding to defecography, nuclear drugs, endosonography, computed tomography, and magnetic resonance imaging. where and cost of defecography, thedynamic demonstration of bowel evacuation, haven't formerly been sincerely outlined. during this hugely illustrated quantity, radiologists skilled in thisfield describe suggestions, radiation hazards, and the translation of standard and irregular findings utilizing the aforementioned suggestions of research. Anorectal surgeons and gastro- enterologists additionally participatein the dialogue of symptoms and the impression of irregular findings on sufferer administration. This booklet can be priceless as a realistic consultant tothe selection, functionality, and interpretation of the best investigationfor a sufferer with useful anorectal problems. As such it represents an exceptional addition to the library of each general practitioner and expert withan curiosity in anorectal sickness.

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2. 44 Fig. 3. Position of the anorectal junction (ARJ) with respect to the tip of the coccyx (in cm) and values of the anorectal angle (ARA) and anal canal width (ACW) during the successive stages of defaecation. All values were the averages of the two observers and thus represented the best estimates of the true values 54 R. 2. 47 0 descent aNegative values denote descent of ARJ. Positive values denote ascent of ARJ. subjects in whom there was no change or even an increase in the angulation during squeezing.

B Position above the level of the tip of the coccyx. C Position below the level of the tip of the coccyx. 4 Rectal Emptying Although the 32 subjects were instructed to evacuate the contrast medium completely, 17 who did not have a sensation of incomplete evacuation showed residual contrast material in the rectum. Probably this was caused by an abolished sensation of rectal fullness after most of the rectal contents had been expelled, so that these subjects had no need to defaecate any further. Shorvon et al.

Based on in vivo measurements of the exposure at mid-pelvis level with intravaginal detectors, we calculated the ovarian dose for two different imaging modalities (video recording and 35-mm cineradiography). 1 Material and Methods All examinations were performed on a conventional x-ray machine with a focus-table distance of 50cm, equipped with a cine-pulse unit for image intensifier cinematography (Philips Diagnost 66, Super 80 CP generator with automatic kV and rnA adjustments for fluoroscopy and cineradiography; cine-pulse time set to lOms).

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