ABSTRACT
A study is reported in which the prevalence of symptomless diverticular disease of the colon is related to the consumption of dietary fibre in vegetarians and non-vegetarians. Vegetarians had a significantly higher mean fibre intake (41.5 g/day) than non-vegetarians (21.4 g/day). Diverticular disease was commoner in non-vegetarians (33%) than in vegetarians (12%). Comparison of subjects with and without diverticular disease in the vegetarian and non-vegetarian groups provided some further evidence that a low intake of cereal fibre is associated with the presence of diverticular disease.
Subject(s)
Cellulose , Diet, Vegetarian , Dietary Fiber , Diverticulum, Colon/epidemiology , Feeding Behavior , Aged , Barium Sulfate , Diverticulum, Colon/diagnostic imaging , Diverticulum, Colon/etiology , England , Female , Humans , Male , Middle Aged , Nutrition Surveys , Radiography , Surveys and QuestionnairesSubject(s)
Diverticulum, Colon/diagnostic imaging , Radiation Dosage , Colon/diagnostic imaging , Humans , Radiography , X-RaysABSTRACT
The technical factors used for cineurethrocystography for the true lateral projection in females are given. The midline radiation dose has been measured with LiF TLD inserted into the vagina in 19 examinations. The average dose recorded was 148 mrad, the range being 50 to 306 mrad; the average number of cine frames exposed was 96. Data obtained using a Rando phantom indicated that the average ovary dose would be 30% greater than the mid-line dose since the near ovary receives a higher dose than the more distant one. The technique used for men is also given, the average gonad dose in six men being 123 mrad, range 56 to 243 mrad when simple lead foil gonad protection was used; the average number of cine frames was 107. The dose in one man without gonad protection was 1575 mrad for 112 cine frames. The results for both sexes compare favourably with those of others reported in the literature and with gonad doses recorded in typical IVP examinations.
