macroaggregated

macroaggregated

(ˌmækrəʊˈæɡrɪˌɡeɪtɪd)
adj
in the form of a macroaggregate
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Preliminary scintigraphy was performed through a hepatic artery catheter with Technetium99m Macroaggregated Albumin (99mTc-MAA).
Analogous planar perfusion images were then obtained following intravenous injection of 250,000-500,000 particles of macroaggregated albumin (MAA) labeled with 185-370 MBq (5-10 mCi) of [sup.99m]Tc.
Caption: Figure 4: (a) Microbubble transthoracic echocardiography showing a right to left shunt with a delayed opacification (>3 cardiac cycles) of the left atrium and ventricle; (b) macroaggregated albumin lung perfusion scan (MAA scan) showing radioactivity in the lungs (panel 2) as well as in the cerebrum (panel 1) and in the kidneys (panel 3), suggesting right to left shunt.
Caption: Figure 2: Anterior and posterior static head images of lung perfusion scan images with Tc-99m macroaggregated albumin (MAA) show focal tracer uptake noted at the region of brain (white arrows) and stomach and faint renal uptake (not shown) indicative of right-to-left shunt.
Ho et al., "Measuring lung shunting in hepatocellular carcinoma with intrahepatic-arterial technetium-99m macroaggregated albumin," Journal of Nuclear Medicine, vol.
Macroaggregated albumin (MAA) was obtained from Triad Isotopes (DraxImage kit).
Organ Radiopharmaceutical Activity [DELTA]t Time (MBq) (min) per projection (min) Thyroid Sodium pertecnetate 74 5 3 Lungs MacroAggregated 185 5 3 albumin-[sup.99m] Tc (MAA) Heart Sestamibi-[sup.99m] 74 60 5 Tc (MIBI) Bones Methylene diphosphonate 185 60 3 -[sup.99m]Tc (MDP) At corresponds to the time between the injection of the radiopharmaceutical and the beginning of the recording.
(1982) Technetium-99m-labeled macroaggregated albumin in demonstration of trans-diaphragmatic leakage of dialysate in peritoneal dialysis.
* Technetium 99m ([sup.99m]Tc) macroaggregated albumin (MAA), a perfusion imaging agent.