Question 319
{"accessible":false,"alternatives":[{"id":1554,"text":"high T1, high T2, high DWI"},{"id":1555,"text":"high T1, high T2, low DWI"},{"id":1556,"text":"high T1, low T2, low DWI"},{"id":1557,"text":"low T1, high T2, high DWI"},{"id":1558,"text":"low T1, low T2, low DWI"},{"id":1559,"text":"low T1, low T2, high DWI"}],"archived":false,"correctAlternativeId":1557,"explanation":"\u003cp\u003eLike other liquids, the liquid core of an abscess has low T1 and high T2 signal. However, because\u0026nbsp;of its high cellularity, it intensely restricts diffusion, giving a high DWI signal, allowing it to be differentiated from the necrotic liquid core of a \u003ca title=\"Brain tumours\" class=\"internal\" href=\"/articles/brain-tumours\"\u003ecerebral tumor\u003c/a\u003e, for example.\u0026nbsp;\u003c/p\u003e","id":319,"imageUrl":null,"imageAttribution":null,"imageAttributionCaseInfo":null,"firstQuestionPath":"/questions/2593","nextQuestionPath":null,"relatedArticles":[{"id":34339,"title":"Cerebral abscess (summary)","link":"/articles/cerebral-abscess-summary?lang=us"},{"id":16718,"title":"Diffusion-weighted imaging","link":"/articles/diffusion-weighted-imaging-2?lang=us"}],"alsoUsedIn":[{"id":1416,"kind":"Course","title":"Emergency Radiology Course - page 1416","link":"https://radiopaedia.org/courses/emergency-radiology-course-online/pages/1416"},{"id":1416,"kind":"Course","title":"Emergency Radiology Course - Melbourne - page 1416","link":"https://radiopaedia.org/courses/emergency-radiology-course-melbourne-2022/pages/1416"},{"id":1416,"kind":"Course","title":"Emergency Radiology Course - Brisbane - page 1416","link":"https://radiopaedia.org/courses/emergency-radiology-course-brisbane-2022/pages/1416"},{"id":1416,"kind":"Course","title":"Content Previews - page 1416","link":"https://radiopaedia.org/courses/previews/pages/1416"}],"stem":"\u003cp\u003eWhat are the usual MRI signal characteristics of the liquid center of a typical bacterial cerebral abscess?\u003c/p\u003e","menuLinks":[{"text":"Report problem with question","url":"https://docs.google.com/forms/d/e/1FAIpQLSfO3soWYhOjJ7yErSysyCe5V4A1CqW7WK3rDA7MtAkecMGqNw/viewform?entry.1624461248\u0026entry.553583435=https://radiopaedia.org/questions/319"}],"attemptsPercentages":[{"alternativeId":"1554","percentage":8},{"alternativeId":"1558","percentage":2},{"alternativeId":"1557","percentage":70},{"alternativeId":"1556","percentage":6},{"alternativeId":"1555","percentage":3},{"alternativeId":"1559","percentage":11}],"promptToLogin":false,"questionManager":false,"articleId":"cerebral-abscess"}