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.

Arl Van Moore, MD, American College of Radiology (ACR) delegate to the American Medical Association (AMA) House of Delegates, former ACR president, chairman of the ACR Board and former CEO of Strategic Radiology, discusses two radiology related policy decisions at the AMA 2022 meeting. These included a AMA policy on the iodine contrast shortage and AUC CDS. #AMA #AMA22 #AMAmtg #AMA175 #ACR

VIDEO: Radiology takeaways from the 2022 AMA meeting

Arl Van Moore, MD, American College of Radiology (ACR) delegate to the American Medical Association House of Delegates, former ACR president, chairman of the ACR Board and former CEO of Strategic Radiology, discusses radiology-related policy decisions at the AMA 2022 meeting.

June 22, 2022
ACR: FDA evidence backing thyroid monitoring in peds after ICM use is 'weak' #contrast #FDA #contrastshortage

ACR: FDA evidence backing thyroid monitoring in peds after ICM use is 'weak'

The ACR statement also brought to light some of the unintended consequences of the FDA’s contrast media safety warning.

June 15, 2022
Example of various breast MRI protocol sequences that offer different types of soft tissue enhancement. Imaging performed on a Siemens Magnetom system. Breast MRI can help see through dense breast tissue to better detect cancers. #densebreasts #Breastdensity #BreastMRI

Contrast enhanced breast MRI superior to CEM, but accessibility remains an obstacle

In addition to CE-MRI's increased sensitivity for identifying breast cancers, the researchers also found the modality had superior negative likelihood ratios with higher pre-test probabilities for safely ruling out malignancy. 

June 9, 2022
An example of spectral cardiac CT being used to show iodine density in the myocardium to show perfusion deficits. Shown by Philips healthcare at ACC 2022.

VIDEO: Mitigating the contrast media shortage impact on CT imaging

Brian Ghoshhajra, MD, MBA, division chief, cardiovascular imaging, Massachusetts General Hospital and associate professor of radiology, Harvard Medical School, explains the impact of the iodine contrast shortage on computed tomography (CT) and cardiac imaging.
 

June 2, 2022
contrast shortage

Contrast shortage update: GE expects supply to 'progressively recover' soon

Production at the facility in Shanghai is expected to be near 100% starting on June 6.

June 2, 2022
Iodine contrast being loaded into a contrast injector in preparation for a cardiac CT scan at Duly Health and Care in Lisle, Illinois. The contrast shortage is causing some healthcare organizations to postpone exams and procedures and ration contrast supplies. Photo by Dave Fornell

ACR working with FDA and HHS to help address imaging contrast shortage

The American College of Radiology (ACR) announced this week its government relations staff has been engaging federal agencies in an effort to improve product availability and hasten resolution of the ongoing iodine contrast shortage.

May 26, 2022
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.

May 24, 2022
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.

May 23, 2022