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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MRI, novel contrast agent improves measurement of brain’s calcium activity

The technique, which combines MRI with a manganese-based contrast agent, could help researchers better understand how neurons communicate in the brain, according to the study published online Feb. 22 in Nature Communications. 

February 25, 2019

Using isosmolar contrast agent during angioplasty reduces risk of renal and cardiac events, say data from GE Healthcare supported study

Significantly fewer renal and cardiac events are associated with angioplasty procedures using isosmolar contrast medium (IOCM) agent Visipaque (iodixanol) than those using low-osmolar contrast media (LOCM), demonstrate data from abstracts presented today at the EuroPCR Congress 2015 in Paris. 

May 20, 2015

ASE recommends contrast agent usage in echoes

The American Society of Echocardiography (ASE) has issued a consensus statement, supporting the use of contrast agents used to enhance echocardiogram images, and providing a guide for physicians who may be hesitant to use the contrast agents following a 2007 FDA black-box warning. The statement was published in the November issue of Journal of the American Society of Echocardiography.

November 13, 2008
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Around the web

Cardiovascular Business
AI improves CT assessments, boosts care for real-world heart patients

Automated AI-generated measurements combined with annotated CT images can improve treatment planning and help referring physicians and patients better understand their disease, explained Sarah Jane Rinehart, MD, director of cardiac imaging with Charleston Area Medical Center.

Cardiovascular Business
AI predicts cardiovascular risk during CT scans—no invasive tests or contrast required

Two advanced algorithms—one for CAC scores and another for segmenting cardiac chamber volumes—outperformed radiologists when assessing low-dose chest CT scans. 

Radiology Business
Google teams with Bayer to address radiologist burnout via AI

"Gen AI can help tackle repetitive tasks and provide insights into massive datasets, saving valuable time," Thomas Kurian, CEO of Google Cloud, said Tuesday. 

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