# Nuclide record tc-99m-maa (drug). Data CC BY-NC 4.0, attribute "Data from Nuclide (nuclide.cc)". Whole corpus: https://nuclide.cc/api/v1/nuclide.nt
@prefix schema: <https://schema.org/> .
@prefix nuclide: <https://nuclide.cc/ns#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .

<https://nuclide.cc/drugs/tc-99m-maa/>
  a schema:Drug ;
  nuclide:kind "drug" ;
  schema:identifier "tc-99m-maa" ;
  schema:name "Technetium Tc-99m albumin aggregated (MAA)"@en ;
  schema:alternateName "99mTc-MAA"@en, "Tc-99m macroaggregated albumin"@en, "MAA"@en, "Pulmotech MAA"@en, "DraxImage MAA"@en ;
  schema:description "Tiny clumps of albumin, a normal blood protein, tagged with a radioactive marker and injected into a vein. They wedge briefly in the smallest blood vessels of the lung wherever blood is flowing, so the scan maps the lung's blood supply; the clumps then break up and clear."@en ;
  schema:url <https://nuclide.cc/drugs/tc-99m-maa/> ;
  schema:dateModified "2026-09-23"^^xsd:date ;
  schema:citation <https://www.accessdata.fda.gov/drugsatfda_docs/label/2023/210089s002lbl.pdf>, <https://www.accessdata.fda.gov/drugsatfda_docs/label/2023/017881s030lbl.pdf>, <https://pmc.ncbi.nlm.nih.gov/articles/PMC8479035/> ;
  nuclide:status "approved" ;
  nuclide:tag "perfusion", "V/Q", "technetium", "radioembolisation work-up" ;
  nuclide:modality "Intravenous SPECT particle agent" ;
  nuclide:approval "US 1987: Lung scintigraphy as an adjunct in the evaluation of pulmonary perfusion, and peritoneovenous shunt patency", "US 2020: Lung scintigraphy as an adjunct in the evaluation of pulmonary perfusion, and peritoneovenous shunt patency" ;
  nuclide:related <https://nuclide.cc/drugs/technegas/>, <https://nuclide.cc/isotopes/kr-81m/>, <https://nuclide.cc/technologies/split-function-lung-perfusion/>, <https://nuclide.cc/isotopes/tc-99m/>, <https://nuclide.cc/indications/pulmonary-embolism-vq/>, <https://nuclide.cc/drugs/y-90-resin-microspheres/>, <https://nuclide.cc/drugs/y-90-glass-microspheres/>, <https://nuclide.cc/technologies/radioembolisation-tare/>, <https://nuclide.cc/companies/curium/>, <https://nuclide.cc/companies/jubilant-radiopharma/>, <https://nuclide.cc/isotopes/y-90/> ;
  nuclide:indications <https://nuclide.cc/indications/pulmonary-embolism-vq/> .