To get help with the issue youâre experiencing: 1  Go to the Support request page. 2  Select the topic you need help with and the problem youâre experiencing. 3  If you still feel that the information doesnât help, click the Continue support request button at the bottom of the screen.  Select your contact method.
Two types of lung scans are usually done together: 1  Ventilation scan. During this scan, you inhale a radioactive tracer gas or mist. 2  Perfusion scan. During this scan, a radioactive tracer is injected into a vein in your arm.
The main such methods in medical imaging are: 1  X-ray computed tomography (CT), or Computed Axial Tomography (CAT) scan, is a helical tomography technique (latest generation), which traditionally produces a 2D image of the structures in a thin section of the body.