Imaging Contrast

Contrast agents are injected into patients to help enhance images to make it easier for radiologists distinguish specific areas of the body from surrounding tissues. The most commonly used agents are iodinated contrast dye for computed tomography (CT), interventional cath lab angiography,  RF fluoroscopy, and in surgical OR procedures. MRI scans typically use gadolinium-based contrast agents. Ultrasound and echocardiography (cardiac ultrasound) imaging use contrast agents composed of microscopic bubbles to enhance images that otherwise would be suboptimal.

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Interview with Alan H. Matsumoto, MD, FSIR, FACR, FAHA, professor of radiology, chair of the Department of Radiology at the University of Virginia, vice chair of the American College of Radiology (ACR) Board of Chancellors, and the chairman of the ACR Commission on Interventional and Cardiovascular Radiology. He explains how the ACR and group purchasing organizations are asking the FDA to mitigate the contrast shortage with an emergency use authorization (EUA) to allow non-FDA cleared iodine contrast use.

VIDEO: American College of Radiology working with FDA to mitigate contrast shortage

Alan Matsumoto, MD, chair of the department of radiology at the University of Virginia and vice chair of the ACR Board of Chancellors, explains how the ACR and group purchasing organizations are asking the FDA to mitigate the contrast shortage with an emergency use authorization to allow non-FDA cleared iodine contrast agents to be imported.

Eric Williamson, MD, MSCCT, the president of the Society of Cardiovascular Computed Tomography (SCCT) and professor of radiology at Mayo Clinic, explains how the iodine contrast shortage is causing issues for cardiac CT imaging. He discusses ways imagers can stretch they iodine contrast supplies and some technologies that might help conserve contrast. #contrastshortage

VIDEO: Contrast media shortage impacting cardiac CT imaging

Eric Williamson, MD, president of the Society of Cardiovascular Computed Tomography (SCCT) and professor of radiology at Mayo Clinic, explains how the iodine contrast shortage is causing issues for cardiac CT imaging and ways this can be mitigated.

A comparison between a traditional iodine contrast angiogram (left), and a gadolinium contrast angiogram (right). MRI gadolinium contrast is starting to be used in some interventional radiology procedures and is being considered in interventional cardiology due to the iodine contrast shortage.

Gadolinium can be used as substitute for iodine contrast in some interventional imaging procedures

Gadolinium might be an alternative, stop-gap solution for interventional procedures during the current iodine contrast shortage.

The imaging iodine contrast shortage is delaying procedures and causing rationing at hospitals. impact is it having on hospitals and the tough decisions that are being made to triage patients to determine if they will get a contrast CT scan or an interventional or surgical procedure requiring contrast. Photo by Dave Fornell

VIDEO: Imaging contrast shortage is delaying procedures and causing rationing

Alan H. Matsumoto, MD, chair of the department of radiology at the University of Virginia and vice chair of the American College of Radiology Board of Chancellors, explains the contrast shortage situation and the tough decisions providers are being forced to make.

Alan Matsumoto explains gadolinium as substitute for iodine contrast during shortage

VIDEO: Gadolinium being substituted for iodine contrast in some procedures due to shortage

Alan H. Matsumoto, MD, chair of the department of radiology at the University of Virginia, vice chair of the American College of Radiology (ACR) Board of Chancellors, and chairman of the ACR Commission on Interventional and Cardiovascular Radiology, explains that the iodine contrast shortage has led to use of MRI gadolinium contrast agents in some cases.

Addressing contrast media shortage in the short, mid and long term

“We need to commit to changing the supply chain so that a single event in a faraway country does not put us in this predicament again," experts wrote in a new special report shared by Radiology.

GE provides update on contrast media shortage

The COVID lockdowns at the Shanghai plant began on March 31, and although the plant there has since resumed operations, they are not yet at 100% capacity.

Any further safety concerns could hinder ultrasound contrast agent delivery, manufacturer warns

North Billerica, Massachusetts-based Lantheus shared its forecast in a quarterly financial report published May 4. 

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