Aim of the investigation:

• Assessment of regional lung perfusion
• Assessment of regional lung ventilation

Indications:

• Detection/exclusion of pulmonary embolism
• Assessment of pre- or postoperative lung function
• Assessment of a left-right short circuit of the lung

Preparation for the examination: Special preparation on the part of the patient is not necessary

Procedure of the examination:

• Consultation with the doctor to explain any uncertainties regarding the examination
• Ventilation scintigraphy performed first

• • Before the examination, the patient should cough and take several deep breaths to loosen mucus and expand the lungs
  • Breathe in the aerosol for 1-3 minutes
  • Rinse the mouth with water to remove any disturbing activity in the mouth and oesophagus
  • Taking the pictures

• This is followed by perfusion scintigraphy:

• •  Several deep breaths should be taken during the intravenous injection of the radiopharmaceutical
  • Taking the images
  • Debriefing
  • The findings are sent to the requesting physician in writing as soon as possible
  • Special features: depending on the problem, it may only be necessary to perform lung perfusion scintigraphy or lung ventilation scintigraphy

Radiopharmaceutical used:

• Lung ventilation:Tc99m aerosol
• Lung perfusion: Tc-99m MAA

Exemplary case study on lung perfusion/ventilation scintigraphy::