Question 2449
{"accessible":false,"alternatives":[{"id":12037,"text":"In-111 octreotide "},{"id":12036,"text":"Tc-99m HDP"},{"id":12033,"text":"Tc-99m MAA"},{"id":12034,"text":"Tc-99m pertechnetate "},{"id":12035,"text":"Tc-99m sestamibi "}],"archived":false,"correctAlternativeId":12036,"explanation":"\u003cp\u003e\u003ca title=\"Tc 99m MDP\" class=\"internal\" href=\"/articles/technetium-99m-methyl-diphosphonate\"\u003eTechnetium-99m hydroxydiphosphonate (Tc-99m HDP)\u003c/a\u003e is a radiotracer used in nuclear medicine especially for bone scintigraphy. Other similar tracers include Tc-99m MDP and Tc-99m HMDP. These phosphate analogs are taken up by bone in proportion to osteoblastic activity.\u003cbr\u003e\u003cbr\u003e\u003ca title=\"Technetium-99m agents\" class=\"internal\" href=\"/articles/technetium-99m-agents\"\u003eTc99m\u003c/a\u003e is the most commonly used radionuclide in nuclear medicine as it has many useful characteristics for imaging including:\u003c/p\u003e\u003cul\u003e\n\u003cli\u003ehaving a relatively short half-life (6 hours)\u003c/li\u003e\n\u003cli\u003ehaving\u0026nbsp;an ideal photopeak for gamma imaging (140 keV)\u003c/li\u003e\n\u003cli\u003ebeing able to easily bind to different pharmaceuticals\u003c/li\u003e\n\u003c/ul\u003e","id":2449,"imageUrl":null,"imageAttribution":null,"imageAttributionCaseInfo":null,"firstQuestionPath":"/questions/2683","nextQuestionPath":null,"relatedArticles":[{"id":62599,"title":"Single photon emission computed tomography (SPECT)","link":"/articles/single-photon-emission-computed-tomography-spect?lang=us"},{"id":15562,"title":"Tc-99m MAA","link":"/articles/tc-99m-maa?lang=us"},{"id":15559,"title":"Tc-99m pertechnetate","link":"/articles/tc-99m-pertechnetate?lang=us"},{"id":15564,"title":"Tc-99m sestamibi","link":"/articles/tc-99m-sestamibi?lang=us"},{"id":25398,"title":"Technetium 99m-methyl diphosphonate","link":"/articles/technetium-99m-methyl-diphosphonate?lang=us"}],"alsoUsedIn":[{"id":1348,"kind":"Course","title":"2022 Virtual Conference Private Use - page 1348","link":"https://radiopaedia.org/courses/2022-virtual-conference-private-use/pages/1348"},{"id":1200,"kind":"Course","title":"2022 Virtual Conference Private Use - page 1200","link":"https://radiopaedia.org/courses/2022-virtual-conference-private-use/pages/1200"},{"id":248,"kind":"LiveSchedule","title":"248","link":"https://radiopaedia.org/admin/live_schedules/248"},{"id":160,"kind":"LiveSchedule","title":"160","link":"https://radiopaedia.org/admin/live_schedules/160"},{"id":1282,"kind":"Course","title":"2022 Virtual Conference Private Use - page 1282","link":"https://radiopaedia.org/courses/2022-virtual-conference-private-use/pages/1282"},{"id":1282,"kind":"Course","title":"Nuclear Medicine Lectures - page 1282","link":"https://radiopaedia.org/courses/nuclear-medicine-lectures/pages/1282"}],"stem":"\u003cp\u003eWhich of the following radiopharmaceuticals is used in bone SPECT-CT?\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/2449"}],"attemptsPercentages":[{"alternativeId":"12035","percentage":6},{"alternativeId":"12036","percentage":65},{"alternativeId":"12037","percentage":6},{"alternativeId":"12033","percentage":6},{"alternativeId":"12034","percentage":17}],"promptToLogin":false,"questionManager":false,"articleId":"technetium-99m-agents"}