MRI may be helful to provide images without the use of contrast (useful in patients with renal failure).
Superior vena cava syndrome MRI
Superior vena cava syndrome physical examination
Superior vena cava syndrome chest x ray
Thoracic aortic aneurysm chest x ray
Superior vena cava syndrome ultrasound
Mediastinitis physical examination
Superior vena cava syndrome CT
Air embolism MRI