Question 1457
{"accessible":true,"alternatives":[{"id":7275,"text":"arterial aneurysm coiling"},{"id":7276,"text":"dural arteriorvenous fistula embolization"},{"id":7277,"text":"dural venous sinus thrombolysis"},{"id":7278,"text":"inferior petrosal sinus sampling"},{"id":7279,"text":"venous sinus manometry"}],"archived":false,"correctAlternativeId":7278,"explanation":"\u003cp\u003eInferior petrosal sinus sampling\u0026nbsp;is an infrequently used method of confirming the presence of a hormonally active\u0026nbsp;\u003ca href=\"https://radiopaedia.org/articles/pituitary-microadenoma?lang=gb\"\u003epituitary microadenoma\u003c/a\u003e\u0026nbsp;when imaging alone has been insufficient. This technique is able to confirm that excess hormone (e.g. ACTH) is being produced by the pituitary and may also help in lateralizing the microadenoma (although the later is more contentious).\u0026nbsp;\u003c/p\u003e","id":1457,"imageUrl":"https://prod-images-static.radiopaedia.org/multiple_choice_questions/76/Pituitary.key_2_big_gallery.jpeg","imageAttribution":{"kind":"case","rID":18114},"imageAttributionCaseInfo":{"title":"Inferior petrosal sinus sampling","contributor_name":"Lawrence Josey","contributor_param":"lawrencejosey","case_rid":18114,"case_param":"inferior-petrosal-sinus-sampling-4"},"firstQuestionPath":"/questions/1458","nextQuestionPath":null,"relatedArticles":[{"id":4233,"title":"Dural arteriovenous fistula","link":"/articles/dural-arteriovenous-fistula?lang=us"},{"id":986,"title":"Saccular cerebral aneurysm","link":"/articles/saccular-cerebral-aneurysm?lang=us"}],"alsoUsedIn":[],"stem":"\u003cp\u003eWhat procedure is being performed in the accompanying image?\u0026nbsp;\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/1457"}],"attemptsPercentages":[{"alternativeId":"7279","percentage":7},{"alternativeId":"7276","percentage":27},{"alternativeId":"7277","percentage":9},{"alternativeId":"7278","percentage":45},{"alternativeId":"7275","percentage":12}],"promptToLogin":false,"questionManager":false,"articleId":"inferior-petrosal-sinus-sampling"}