Dosimetry of radiopharmaceuticals used in adult patients with suspected pulmonary embolism

Autor: Marcial Vasquez-Arteaga, Hector Rene Vega-Carrillo, Huber Rodriguez, Roger Chanduvi, Carlos Castillo, Carlos Chirinos, Carlos Rodriguez-Benites
Rok vydání: 2021
Předmět:
Zdroj: MOMENTO. :22-33
ISSN: 2500-8013
0121-4470
DOI: 10.15446/mo.n63.95617
Popis: The absorbed dose of radiopharmaceuticals is estimated in adults with suspected pulmonary embolism explored by ventilation/perfusion studies. For pulmonary ventilation studies 81mKr, 133Xe, 99mTc (Technegas)-aerosol and 99mTc (DTPA)-aerosol are used. For perfusion agents, 99mTc(MAA), 99mTc (MSA) (macroaggregates and albumin microspheres) are used. For the dose calculation, the MIRD methodology and the anthropomorphic representation of the biokinetic organs of Cristy-Eckerman are used. In ventilation/perfusion studies, the lowest dose absorbed by the lungs with suspected embolism is due to 81mKr/ 99mTc (MSA), and the highest dose is due to 99mTc (Technegas)/99mTc (MAA) calculated for activities of 150 MBq for perfusion agents and 40 MBq for ventilation agents.
Databáze: OpenAIRE