{"id":52414,"date":"2018-05-12T18:44:14","date_gmt":"2018-05-12T16:44:14","guid":{"rendered":"https:\/\/dev.mie-scintron.com\/radioiodine-test\/"},"modified":"2025-04-07T16:27:57","modified_gmt":"2025-04-07T14:27:57","slug":"radioiodine-test","status":"publish","type":"page","link":"https:\/\/mie-scintron.com\/en-US\/nm-spect-software\/radioiodine-test\/","title":{"rendered":"Thyroid – Radioiodine Test"},"content":{"rendered":"
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In this program, three methods for determining the therapy activity are implemented:<\/p>\n
Determination of the effective half-life (T1\/2eff) of several thyroid uptake measurements,<\/p>\n<\/li>\n
Calculation from only one measurement after 5-8 days of capsule application,<\/p>\n<\/li>\n
Calculation with one measurement after 24h with default values for the half-life according to the disease.<\/p>\n<\/li>\n<\/ul>\n
[\/vc_column_text][\/vc_column][\/vc_row][vc_row full_width=”stretch_row” equal_height=”yes” content_placement=”middle” disable_element=”yes” el_class=”bg-light-grey”][vc_column css=”.vc_custom_1527252860566{margin-bottom: 0px !important;}”][vc_empty_space][vc_column_text css=”.vc_custom_1527252895570{margin-bottom: 0px !important;}”]<\/p>\n
The Iodine-131 therapy dose is determined from a test measurement of the uptake of iodine-131 with a small capsule type.<\/p>\n
The computed therapy activity is calculated by using the Marinelli formula:<\/p>\n
| Therapy Activity [MBq] =<\/td>\n | 24.7 * Needed Target Dose [Gy] * Mass of Target Volume [g]<\/td>\n<\/tr>\n | ||
| ln 2 * \/*nochtauschen* RIU (t) dt<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n [\/vc_column_text][vc_empty_space][\/vc_column][\/vc_row][vc_row equal_height=”yes” content_placement=”middle” disable_element=”yes”][vc_column][vc_empty_space][vc_column_text]<\/p>\n The radioiodine uptake [%] is the proportion of applied radioiodine, which is present at a defined time after application in the thyroid (not decay corrected).<\/p>\n The determination of the radioiodine uptake is done by measurement of the activitiy in the thyroid.<\/p>\n
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