Q. Technical Requirements for pulmonary angiography?

Digital subtraction pulmonary angiography with selective pulmonary arterial injections is vastly superior to conventional cut film angiography in all aspects except in resolution.

Contraindications

Absolute: None

Relative

1) Individuals with LBBB may develop complete heart block due to catheter trauma

2) Pulmonary hypertension

3) Anaphylactoid reaction to intravenous contrast

4) Patients on amiodarone

Venous Access

The femoral vein is the preferred venous access site. However, if there is proximal thrombus, then the alternative venous access sites are right or left internal jugular vein, right or left basilic vein in the antecubital fossa.