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.

gadolinium, GBCAs

Gadolinium-based contrast agents are safe, even at higher doses, new research suggests

The rat model showed no clinical evidence of neurotoxicity after doses above diagnostic levels were administered, but further research is needed in humans, experts reported in Radiology.

December 22, 2021

Guerbet, Bracco partner on new lower dose gadolinium contrast agent for MRI scans

Gadopiclenol was shown to require 50% less gadolinium compared to other commonly used agents, according to Phase 3 clinical studies.

December 14, 2021

New scoring system spots patients at risk of contrast-associated kidney injury

Mount Sinai doctors presented their simple system during the American Heart Association's annual meeting.

November 15, 2021
Stroke - head with text

Noncontrast CT a cost-friendly alternative to select late-stroke patients for thrombectomy

Using CT resulted in similar clinical and safety outcomes compared to advanced imaging, such as MRI and CT perfusion.

November 9, 2021
CT Scan

Warming up CT contrast agents raises radiology department costs and few clinical benefits

Checking the temperature of warming devices and maintaining equipment may not be entirely necessary, new research suggests.

November 5, 2021
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AI combining contrast-enhanced and non-contrast CT accurately identifies brain metastases

The platform utilizing both image types detected cancer with a positive predictive value of 44%, beating out a contrast-only approach.

November 2, 2021

Delayed-phase contrast-CT scans can help detect early pancreatic cancers, study shows

Given pancreatic cancer is aggressive and challenging to treat, early detection is key to a positive prognosis, researchers explained.

October 20, 2021

AI carries ‘enormous potential’ to transform cardiac MRI, reduce scan times without using contrast

Virtual native enhancement produces higher quality scans compared to traditional modalities but without gadolinium-enhancement required.

August 31, 2021

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