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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Breakfast

Fasting before contrast-enhanced CT exams is unnecessary, experts say

In some instances, not eating solid foods can actually make patients feel sick, leading to nausea and dehydration, researchers explained recently.

October 23, 2020
Breast imaging mammogram screening study being performed. The mammograms can reveal is a patient has breast cancer.

Targeted US adds diagnostic insight for suspicious lesions found on contrast-enhanced mammography

The ultrasound-guided approach may also be used in biopsy planning when MRI is not available, experts wrote in AJR.

October 8, 2020

Radiology practice paying $500K after allegedly delivering contrast imaging without doc supervision

Advanced Imaging of Port Charlotte also billed Medicare for services performed by doctors who lacked the proper credentials, the DOJ announced.

September 30, 2020
Researchers recently completed an external validation for the Ovarian-Adnexal Reporting and Data System (O-RADS) for classifying lesions as malignant or benign, for which validation had been previously lacking. #ORADS

Ultrasound society urges FDA to eliminate 'outdated' contrast label warnings

The International Contrast Ultrasound Society submitted a Citizens Petition to the administration, following similar efforts undertaken in the past two years.

September 1, 2020

Novel ‘double-contrast’ method spots small tumors on MRI

University of California, Davis, researchers believe their new probe could help detect very small, early stage tumors.

May 27, 2020
According to calculations comparing catheter ablation with drug therapy, the additional quality-adjusted life-years that can result from the treatment justify its increased costs. 

University spinoff receives $750K to develop iron-based alternative to gadolinium contrasts

Ferric Contrast, a contrast agent company founded by faculty from the University at Buffalo in New York, says doctors and patients want new options in MR imaging.

May 22, 2020

New MRI contrast agent detects cancers before they spread to the brain

The material increases magentic resonance sensitivity so that providers can visualize abnormal tissue changes indicative of metastasis.

March 19, 2020

‘Game changer’: MRI contrast agent targets new liver cancer biomarker

Initial results were so successful that the material has been fast-tracked by the FDA in an effort to test its accuracy in human clinical trials.

February 10, 2020
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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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