Cardiac tamponade CT scan

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Ramyar Ghandriz MD [2]

Overview

A CT scan is not commonly used for the diagnosis of cardiac tamponade as it is effectively diagnosed based on clinical features and echocardiography.

Ct scan provides pivotal information about the underlying cause of pericardial effusion based on attenuation measurements of collection.

Superior vena cava enlargement
- Diameter similar or greater than adjacent thoracic aorta.
Inferior vena cava enlargement
- Diameter greater than twice that of the adjacent abdominal aorta
Hepatic and renal vein enlargment
Periportal edema
Reflux of contrast material
Compression of coronary sinus
Angulation of interventricular septum
Pericardial thickening
Collapse of the right atrium
Aortic blood contrast level

↑ "Cardiac tamponade | Radiology Reference Article | Radiopaedia.org".
↑ Shergill, Arvind K; Maraj, Tishan; Barszczyk, Mark S; Cheung, Helen; Singh, Navneet; Zavodni, Anna E (2015). "Identification of Cardiac and Aortic Injuries in Trauma with Multi-detector Computed Tomography". Journal of Clinical Imaging Science. 5: 48. doi:10.4103/2156-7514.163992. ISSN 2156-7514.