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BackTable / VI / Podcast / Episode #70

CO2 Angiography

with Dr. James Caridi

Dr. Jim Caridi from Tulane Medical Center gives us the ins and outs on when and how to use CO2 Angiography, including pitfalls to avoid.

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CO2 Angiography with Dr. James Caridi on the BackTable VI Podcast)
Ep 70 CO2 Angiography with Dr. James Caridi
00:00 / 01:04

BackTable, LLC (Producer). (2020, July 5). Ep. 70 – CO2 Angiography [Audio podcast]. Retrieved from

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Podcast Contributors

Dr. James Caridi discusses CO2 Angiography on the BackTable 70 Podcast

Dr. James Caridi

Dr. James Caridi is the Chairman of the Department of Radiology and a Professor of Vascular and Interventional Radiology at Tulane University Medical School.

Dr. Christopher Beck discusses CO2 Angiography on the BackTable 70 Podcast

Dr. Christopher Beck

Dr. Chris Beck is a practicing interventional radiologist with Regional Radiology Group in New Orleans.


In this episode, Dr. James Caridi joins Dr. Christopher Beck to discuss the benefits of using CO2 for an angiography as well as some important tips for proper use. Dr. Caridi mentions some of the reasons for choosing CO2 rather than contrast, including its solubility, low viscosity, and buoyancy.

He also speaks about CO2 angiography approaches for imaging difficult to access vasculature. Dr. Caridi also speaks to specific uses of CO2 angiography for use for mesenteric angiography and how CO2 angiography can improve the sensitivity for detection and localization of GI bleeds. Dr. Caridi and Dr. Beck also discuss some non-vascular uses for CO2 angiography as well as a technique for imaging with CO2 without having to give up wire access.

We talk through safely preparing a delivery system and gently injecting CO2 to prevent/reduce reflux in the patient if needed. Finally, we go into some notes concerning dialysis, contrast induced nephropathy, and some instances when CO2 angiography should not be used.


CO2 Angiography Society
This website features over 100 pieces of literature related to CO2 angiography, information about the newest developments, and access to membership in the society.

Dr. Jim Caridi explains CO2mmander and AngiAssist
This video explains the portable delivery system and the gas management system.

Disclaimer: The Materials available on are for informational and educational purposes only and are not a substitute for the professional judgment of a healthcare professional in diagnosing and treating patients. The opinions expressed by participants of the BackTable Podcast belong solely to the participants, and do not necessarily reflect the views of BackTable.

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