1 | Performing ventilation upright produces distribution different from that when performed supine. 99mTc-macroaggregated albumin should be administered for perfusion in same position as that in which ventilation was performed. |
2 | Gloves and gown should be worn when performing the ventilation stage as this is biggest risk for contamination. This stage also requires face masks to be worn for coronavirus disease 2019 compliance. |
3 | For days on which eluate has high specific concentration, eluate should be diluted so that no more than 900 MBq are contained in 0.15-mL volume. |
4 | When used as per instruction, Technegas produces minimal contamination risk to staff and no risk of cross contamination between patients, a very important advantage with coronavirus disease 2019 (16). |
5 | Any unused crucibles in simmer oven at end of day can be cleansed with ethanol the next day and reloaded for simmer. |
6 | Since Technegas does not clear through kidneys, compared with 99mTc-diethylenetriaminepentaacetic acid aerosol studies, radiation dose to kidneys, bladder, and fetus is lower (17). |