Question 761
{"accessible":false,"alternatives":[{"id":3862,"text":"increasing kVp"},{"id":3863,"text":"increasing beam filtration"},{"id":3864,"text":"gonad shielding"},{"id":3865,"text":"collimating to minimum field size"},{"id":3866,"text":"increasing exposure time"}],"archived":false,"correctAlternativeId":3865,"explanation":"\u003cp\u003eCollimating to minimum field size reduces the amount of scatter received by the detector, hence improving image quality.\u003c/p\u003e\u003cp\u003eIncreasing kVp and beam filtration\u0026nbsp;will lead to a harder x-ray beam and decreased image contrast. Gonad shielding will have no impact on\u0026nbsp;surrounding image quality. Increasing exposure time will increase movement artifact and hence decrease image quality.\u003c/p\u003e\u003cp\u003eAdapted from\u0026nbsp;\u003ca href=\"https://en.wikibooks.org/wiki/Basic_Physics_of_Digital_Radiography\"\u003eBasic Physics of Digital Radiography\u003c/a\u003e\u0026nbsp;by\u0026nbsp;Kieran Maher,\u0026nbsp;with author's permission (License:\u0026nbsp;\u003ca href=\"https://creativecommons.org/licenses/by-sa/3.0/\"\u003eCreative Commons\u0026nbsp;BY-SA 3.0\u003c/a\u003e).\u003c/p\u003e\u003cp\u003e\u0026nbsp;\u003c/p\u003e","id":761,"imageUrl":null,"imageAttribution":null,"imageAttributionCaseInfo":null,"firstQuestionPath":"/questions/2608","nextQuestionPath":"/articles/filters/questions/758","relatedArticles":[{"id":18982,"title":"Exposure","link":"/articles/exposure?lang=us"},{"id":30311,"title":"Beam collimators","link":"/articles/beam-collimators?lang=us"}],"alsoUsedIn":[],"stem":"\u003cp\u003eWhich of the following dose reduction techniques will improve image quality?\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/761"}],"attemptsPercentages":[{"alternativeId":"3862","percentage":14},{"alternativeId":"3863","percentage":29},{"alternativeId":"3866","percentage":2},{"alternativeId":"3864","percentage":1},{"alternativeId":"3865","percentage":54}],"promptToLogin":false,"questionManager":false,"articleId":"filters"}