Medical Imaging

Physicians utilize medical imaging to see inside the body to diagnose and treat patients. This includes computed tomography (CT), magnetic resonance imaging (MRI), X-ray, ultrasound, fluoroscopy, angiography,  and the nuclear imaging modalities of PET and SPECT. 

AI-generated coronary tree from a patient's CT scan showing a color code of areas of interest for plaque burden from the Cleerly software shown at SCCT 2022.

VIDEO: The role of AI in cardiac imaging

Ed Nicol, MD, president-elect of the Society of Cardiovascular Computed Tomography, provided us with an exclusive look at how AI is expected to change cardiac imaging.

October 24, 2022
Left, HeartFlow's RoadMap analysis enables cardiac CT readers to identify stenoses in the major coronary arteries. The AI provides visualization and quantification of the location and severity of anatomic narrowings. Right image, HeartFlow's Plaque Analysis AI algorithm automates assessment of coronary plaque characteristics and volume on CCTA exams to greatly reduce the time it takes to manually assess and quantify these features.

HeartFlow gains FDA clearance for 2 new AI-powered imaging assessments

The solutions, Plaque Analysis and RoadMap Analysis, both use coronary CT angiography to provide clinicians with a noninvasive look at patients who present with coronary artery disease and face a heightened myocardial infarction risk.

October 18, 2022
Coronary CT Angiography (CCTA) has evolved into a much more helpful resource than interventional cardiologists may have originally believed. In fact, the Society of Cardiovascular Computed Tomography (SCCT) emphasized in a new expert consensus statement that CCTA provides specialists with an effective tool in the preparation and optimization of coronary procedures. The 2021 chest pain guidelines elevated CTA to a class 1A recommendation. Harold Litt , MD, explains the use of CCTA in the ED.

VIDEO: Cardiac CT as a front-line chest pain exam in the ED

Harold Litt, MD, explains the use of cardiac CT as a primary imaging exam for chest pain at his emergency department over the past decade.

October 13, 2022
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VIDEO: Role of PFO closure in stroke prevention

John Carroll, MD, director of interventional cardiology and professor of medicine at the University of Colorado, explains the state of  transcatheter closure of patent foramen ovale (PFO) to prevent stroke.

October 10, 2022
CT imaging showing the congenital heart defect of left heart hypoplastic syndrome.

VIDEO: Congenital heart imaging with cardiac CT

As the population of patients with adult congenital heart disease grows, they are presenting to adult cardiology clinics and being imaged with CT. Many also do not have access or cannot be imaged by MRI, said Renee Bullock-Palmer, MD.

September 28, 2022
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New recommendations for cardiac CT in cardio-oncology imaging

The statement was written to fill gaps in recommendations from prior consensus statements and guidelines in regards to the use of CCT in cardio-oncology, including use of calcium scoring and ruling out coronary disease when cardiac function is impaired.

September 27, 2022
Use of ultrasound to guide needles used for femoral vascular access for cath lab procedures can help reduce bleeding and vascular complications. But the Universal Trial at TCT 2022 showed no difference. Image courtesy of Sonosite

Ultrasound guidance for femoral access did not reduce bleeding or vascular complications in TCT late-breaker

The UNIVERSAL Trial, one of the largest multicenter randomized trials comparing ultrasound with fluoroscopic guidance vs. fluoroscopic guidance alone, found there was no reduction in major vascular access complications. 

September 20, 2022
A study published this week in the Journal of the American College of Cardiology (JACC): Cardiovascular Imaging shows artificial intelligence (AI) algorithms can more rapidly and objectively determine calcium scores in computed tomographic (CT) and positron emission tomographic (PET) images than physicians.[1] The AI also performed well when the images were obtained from very-low-radiation CT attenuation scans. https://doi.org/10.1016/j.jcmg.2022.06.006

Artificial intelligence can objectively determine cardiac calcium scores faster than doctors

A new study shows artificial intelligence (AI) algorithms can more rapidly and objectively determine calcium scores in CT and PET/CT images than physicians.

September 16, 2022

Around the web

Eleven medical societies have signed on to a consensus statement aimed at standardizing imaging for suspected cardiovascular infections.

Kate Hanneman, MD, explains why many vendors and hospitals want to lower radiology's impact on the environment. "Taking steps to reduce the carbon footprint in healthcare isn’t just an opportunity," she said. "It’s also a responsibility."

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