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.

AI is still one of the key technologies on the floor that many radiologists want to learn more about. A product rep discussing breast automated detection AI in the crowded Lunit booth at RSNA 2022.

9 technology trends and takeaways from RSNA 2022

Here are some interesting new technologies and key trends from the vast expo floor at the Radiological Society of North America 2022 meeting.

December 6, 2022
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
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
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
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.

May 23, 2022
Kirk Garratt, past SCAI president, explains the impact of the iodine contrast shortage on interventional cardiology and the cath lab. #SCAI

VIDEO: How the iodine contrast shortage is impacting interventional cath labs

Kirk Garratt, MD, medical director of the Center for Heart and Vascular Health, ChristianaCare, and a past president of SCAI, explains what this shortage means for interventional cardiologists.

May 19, 2022
A medical professional trained to manage contrast reactions should be on-site at any imaging facilities doing contrast studies to maintain patient safety, according to a an updated statement from the American College of Radiology. The ACR has released the latest edition of the ACR Appropriateness Criteria, which includes 221 diagnostic imaging and interventional radiology topics with more than 1,050 clinical variants covering 2,900 clinical scenarios. #ACR #AUC #appropriateuse

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.

May 19, 2022

Around the web

Five of the largest U.S. medical societies focused on cardiovascular health are one step closer to seeing their paradigm-shifting proposal become a reality.

The Society for Cardiovascular Angiography & Interventions and Society of Thoracic Surgeons have both shared statements in support of the ban, which is already being challenged in court. The American Hospital Association, meanwhile, opposes the policy shift, saying it “errs by seeking to create a one-size-fits-all rule”

Alison Bailey, MD, co-chair of the business of cardiology sessions at ACC.24, emphasized that reimbursement cuts can have a long-term negative impact on patient. 

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