Cardiovascular Radiology: Page 14

Ultrasonic flow ratio reliable for assessing coronary stenosis
By Amerigo Allegretto
Ultrasonic flow ratio is a reliable method for computing fractional flow reserve in assessing coronary stenosis.
January 11, 2024
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PCCT overcomes image limitations for stenosis quantification on CCTA
By Kate Madden Yee
Photon-counting detector CT (PCCT) with virtual monoenergetic imaging reconstruction shows promise for quantifying stenosis with coronary CT angiography (CCTA).
January 10, 2024
82-year-old man with calcified stenosis in left main artery who underwent coronary CTA by PCCT. Curved multiplanar reformatted images at varying virtual monoenergetic imaging (VMI) levels (40-140 keV) show stenosis at each level. Percent diameter stenosis (PDS) decreased from 92.5% at 40 keV to 53.1% at 140 keV. Extent of calcium blooming artifacts decreased from 100% at 40 keV to 72.3% at 140 keV. Image and caption courtesy of the American Journal of Roentgenology.
CEFUS visualizes carotid plaque volume
By Amerigo Allegretto
3D contrast-enhanced fusion ultrasound (CEFUS) can analyze carotid plaque volume burden and could help monitor plaque development over time.
January 4, 2024
Segmentation of the carotid artery included the reconstruction of the carotid artery from 3D CEFUS/3D CTA to enable volume quantifications. (a) Only shown for 3D CEFUS, a 3D cylindrical model was initialized from manually set circle marks of the vessel wall border (media-adventitia interface) in the common carotid artery and internal carotid artery. From the circles, a mesh of the vessel border (yellow delineation) was formed. (b) The contour of the contrast-filled lumen was outlined (red delineation), creating a lumenography into the final reconstructed 3D carotid model. The same segmentation procedure was performed on the corresponding 3D CTA. The images are available to use under a Creative Commons license: CC BY 4.0 DEED, Attribution 4.0 International.
Increase in CCTA exams expected to mirror TAVR growth trend
By Stephanie Hosbrook, Robert Falk, MD
A steady increase in the volume of coronary CT angiography (CCTA) exams is occurring, especially at mid- to high-level community hospitals across the country.
December 26, 2023
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MRI shows influence of hypertension on cerebral small vessel disease
By Kate Madden Yee
Researchers have used MRI to illuminate the effects of hypertension on cerebral small vessel disease-related brain structures, finding that these effects differ by patient sex and age at diagnosis.
December 21, 2023
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AI plus CT calculates cardiothoracic ratio for high risk patients
By Liz Carey
Automated heart measurements captured from CT scans can flag people at high risk of major cardiovascular events due to cardiomegaly.
November 27, 2023
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FDA clears Arineta's SpotLight deep learning software
By AuntMinnie.com staff writers
The U.S. Food and Drug Administration (FDA) has cleared Arineta Cardio Imaging's deep-learning image reconstruction technology for use in its SpotLight family of cardiovascular CT scanners.
November 20, 2023
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Deep learning helps predict CTO recanalization outcomes
By Kate Madden Yee
Using a deep-learning algorithm with coronary CT angiography effectively predicts the success of percutaneous recanalization of CTO lesions.
November 15, 2023
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CMS increases reimbursement for AI echocardiography
By AuntMinnie.com staff writers
Ultromics noted that the CMS has effectively raised the reimbursement rate covering its EchoGo Heart Failure software.
November 8, 2023
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How cardiac interventional radiographers promote better patient outcomes
October 23, 2023
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New PET tracer shows promise visualizing cardiac amyloidosis
By Will Morton
A team at Harvard University in Cambridge, MA, has tested the first PET radiotracer specifically for visualizing cardiac amyloidosis, also known as "stiff heart syndrome," according to a recent study.
September 12, 2023
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CT-FFR imaging assesses adverse outcome risk in angina patients
By Kate Madden Yee
CT angiography-derived fractional flow reserve (CT-FFR) imaging helps clinicians assess stable angina patients' adverse outcome risk -- even if they have high coronary artery calcium scores, research published September 12 in Radiology has found.
September 11, 2023
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