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过去20年,静注~(99m)Tc标记放射性药物的传统平面显像(放射性核素脑显像)经历了引人注目的“兴起和衰落”。本文论述在穿透型和发射型断层时代通常脑显像将继续在某些领域发挥有益的作用。方法: 1.放射性药物:脑显像剂过~(99m)锝酸盐大部已被~(99m)Tc的螯合物(DTPA或葡庚糖酸盐)取代。在评价主要静脉窦开放或探查诸如动静脉畴形(AVM)的严重血管病变时,使用标记RBC可能有益。 2.序列显像:注射放射性示踪剂弹丸后,早时快速序列显像(放射性核素脑血管造影)应该用于最通常的脑显像检查。即刻早时静态显像主要提
In the past two decades, traditional planar imaging (radionuclide brain imaging) of intravenous ~ (99m) Tc-labeled radiopharmaceuticals has undergone a dramatic “rise and fall”. This article discusses that brain imaging will continue to play a useful role in some areas in the age of penetrating and emissive tomography. Methods: 1. Radiopharmaceuticals: Most brain imaging agents have been replaced by chelates of ~ (99m) Tc (DTPA or glucoheptonate). The use of labeled RBCs may be useful in evaluating major venous sinus openings or in exploring severe vascular pathologies such as arteriovenous degeneration (AVM). 2. Sequential imaging: Rapid injection of radioactive tracer (radionuclide cerebral angiography) should be used for the most common brain imaging after radiotracer injection. Immediately before the main static image development