Pulmonary embolism: ventilation/perfusion imaging

What changed: Pulmonary embolism: ventilation/perfusion imaging

Every dated change on the records linked to Pulmonary embolism: ventilation/perfusion imaging, newest first: approvals and regulatory steps on its medicines, trials that reported, guideline versions, milestones, and when this page itself was checked. Dates come from the records; none is inferred. Orientation, not medical advice.

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September 2026 · 1

2026-09-22This recordPulmonary embolism: ventilation/perfusion imaging
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When this page itself was last checked or edited.

September 2023 · 1

2023-09-29RegulatoryTechnegas (technetium Tc-99m labelled carbon inhalation aerosol)
Technegas (technetium Tc-99m labelled carbon inhalation aerosol): approval (US)
FDA approval of NDA 022335 (Cyclomedica Australia), Type 3 new dosage form

2023 · 1

2023ApprovalTechnegas (technetium Tc-99m labelled carbon inhalation aerosol)
Technegas (technetium Tc-99m labelled carbon inhalation aerosol) approved in US
Visualisation of pulmonary ventilation, and evaluation of pulmonary embolism when paired with perfusion imaging, in adults and children aged 6 and over

2020 · 1

2020ApprovalTechnetium Tc-99m albumin aggregated (MAA)
Technetium Tc-99m albumin aggregated (MAA) approved in US
Lung scintigraphy as an adjunct in the evaluation of pulmonary perfusion, and peritoneovenous shunt patency

1987 · 1

1987ApprovalTechnetium Tc-99m albumin aggregated (MAA)
Technetium Tc-99m albumin aggregated (MAA) approved in US
Lung scintigraphy as an adjunct in the evaluation of pulmonary perfusion, and peritoneovenous shunt patency