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A member asked:
When doing ct of chest what's the difference with and without contrast?
2 doctors weighed in across 2 answers
See below: No contrast shows you the lung fields. Contrast enables you to see blood clots in the pulmonary vessels as well as differentiate between lymph nodes and vessels in the mediastinum, overall a better study if you can tolerate it (allergies, renal function).
Answered 10/3/2016
5.5k views
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Contrast: Better pictures but higher risk of kidney trouble check with your pulmonologist.
Answered 11/2/2012
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