AMA CPT® Assistant - 2007 Issue 1 (January)

Radiology (January 2007)

January 2007 page 31-end Coding Communication:Radiology Question What is the difference between CT and CTA? AMA Comment Computed tomographic angiography (CTA) is a non-invasive technique for imaging vessels. The information obtained from the CTA is used in the evaluation of vascular anatomy (eg, renal or liver transplant donors, congenital anomalies), vascular disorders (eg, aortic or intracranial aneurysms, renal artery or carotid stenosis), and vascular trauma (eg, aortic laceration) and in the follow-up of organ transplantation. The key distinction between CTA and computed tomography (CT) is that CTA includes reconstruction postprocessing of angiographic images and interpretation. If reconstruction postprocessing is...

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