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Technetium (99mTc) albumin aggregated : ウィキペディア英語版 | Technetium (99mTc) albumin aggregated
Technetium 99mTc albumin aggregated (99mTc-MAA) is an injectable radiopharmaceutical used in nuclear medicine. It consists of a sterile aqueous suspension of Technetium-99m (99mTc) labeled to human albumin aggregate particles in the pH range of 3.8 to 8.0. == Preparation == Kits for preparing 99mTc-MAA are available in the United States from only a single manufacturer; Draximage. The kits are delivered to nuclear pharmacies as lyophilized powders of non-radioactive ingredients sealed under nitrogen. A nuclear pharmacist adds anywhere from 50 - 100 mCi of Na99mTc to the reaction vial to make the final product. After being allowed to set at room temperature for 15 minutes to ensure maximum tagging of 99mTc to the human albumin, the kit can then be diluted with sterile normal saline as needed. Once prepared the product will have a turbid white appearance.
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