Cardiovascular Radiology: Page 6

ISMRM: AI spots ischemic heart disease on low GBCA dose images
By Erik L. Ridley
An AI-based framework was highly accurate for detecting myocardial ischemia, even on images acquired with 90% less gadolinium.
May 14, 2025
Representative stress perfusion CMR case with 80% contrast dose reduction. Pixel-wise MBF maps and AHA 16-segment bull's eye plots are shown for full-dose and reduced-dose acquisitions. When analyzed using the proposed MST deep learning method, the reduced-dose data closely matches the full-dose data across basal, mid, and apical slices. In contrast, Fermi-deconvolution shows good agreement in apical and mid slices but overestimates MBF in some basal segments, indicating reduced accuracy under low-dose conditions. Image courtesy of the ISMRM.
ISMRM: 4D MRI reveals heart impairments in patients with COPD
By Will Morton
Research presented at ISMRM 2025 highlighted how 4D flow MRI reveals cardiopulmonary hemodynamic interaction in patients with COPD.
May 12, 2025
Examples of hemodynamic parameter maps superimposed on their corresponding anatomic data for two participants. Participant A represents an example of good flow with lower right ventricle stasis, increased right atrium kinetic energy, and increased mean velocity when compared to the sample’s average calculations. Opposite findings are highlighted by the visualizations of participant B representing an example of poor flow.
Cleerly, Cardiac Care Alliance partner on cardiac assessment
By AuntMinnie.com staff writers
Cleerly and Cardiac Care Alliance will collaborate on offering Cleerly's coronary artery disease assessment technology.
May 6, 2025
Cardiac Heart Eeg
DL model can aid in diagnosing myocardial ischemia
By Will Morton
A deep-learning (DL) model can automatically measure myocardial blood flow on CT scans to help diagnose myocardial ischemia.
April 29, 2025
Representative images from diagnostic analysis of deep learning (DL)-based CT myocardial perfusion imaging (MPI). (A-D) Representative images in a 51-year-old woman with stable angina at presentation. (A) Curved planar reformation and (B) three-dimensional maximum intensity projection images show severe stenosis of the opening left anterior descending artery (arrow). (C) Fractional flow reserve (FFR) determined with invasive coronary angiography helps confirm that there was no hemodynamic significance of the opening left anterior descending artery lesion (arrow). (D) Dynamic CT MPI provided functional information to identify hemodynamically significant stenosis with reference to invasive FFR. Myocardial blood flow (MBF) derived from DL-based CT MPI revealed the absence of decreased myocardial perfusion of the left anterior descending artery territory (the areas outlined in black represent the myocardium subtended by the left anterior descending stenosis, and the color bar is a graphical scale that maps MBF ranges). (E-H) Representative images in a 62-year-old man with exertional chest pain at presentation. (E) Curved planar reformation and (F) three-dimensional maximum intensity projection images show moderate stenosis of the middle left anterior descending artery (arrow). (G) FFR determined at invasive coronary angiography helps confirm that the middle left anterior descending lesion was hemodynamically significant (arrow). (H) Dynamic CT MPI provided functional information to identify hemodynamically significant stenosis with reference to invasive FFR. DL-based CT MPI showed a reduction in MBF within the middle and basal anterior wall of the left anterior descending artery territory (the areas outlined in black represent the myocardium with decreased perfusion, and the color bar is a graphical scale that maps MBF ranges). MBFDL = MBF derived from the DL model.
Terumo expands partnership with Medis Medical Imaging
By AuntMinnie.com staff writers
Terumois collaborating with Medis Medical Imaging to offer hospitals in the U.S. access to Medis QFR 3.0 for cath lab workflow.
April 18, 2025
Heart Glowing Red 400
CPT codes approved for AI-assisted cardiac risk assessment
By AuntMinnie.com staff writers
The American Medical Association has approved two new Category III CPT codes for AI-assisted cardiac risk analysis.
April 8, 2025
Heart Glowing Red 400
Thoracic aortic calcification data could help predict CAC risk
By Kate Madden Yee
Adding thoracic aortic calcification data to coronary artery calcification (CAC) models shows promise as a risk prediction biomarker for CAC in asymptomatic patients undergoing chest CT.
March 27, 2025
Representative examples of visual TAC categories, assessed on chest CT in asymptomatic individuals undergoing general health screening (blue indicates segmented TAC at level of aortic arch). Axial (A) and sagittal volume-rendered (B) images in 42-year-old patient. AI-based quantification yielded TAC volume of 101 mm3 and TAC Agatston score of 105. Examination was assessed as showing visually mild TAC. Axial (C) and sagittal volume-rendered (D) images in 57-year-old patient. AI-based quantification yielded TAC volume of 834 mm3 and TAC Agatston score of 993. Examination was assessed as showing visually moderate TAC. Axial (E) and sagittal volume-rendered (F) images in 65-year-old patient. AI-based quantification yielded TAC volume of 4872 mm3 and TAC Agatston score of 5848. Examination was assessed as showing visually severe TAC. Images and caption courtesy of the AJR.
PCCT bests conventional CT for quantifying coronary plaque
By Kate Madden Yee
Photon-counting detector CT (PCCT) used for coronary CT angiography outperforms energy-integrating detector CT in quantifying coronary plaque.
March 4, 2025
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Elucid names new execs ahead of PlaqueIQ launch
By AuntMinnie.com staff writers
Cardiovascular imaging AI firm Elucid has named new executives ahead of the launch of PlaqueIQ, its image analysis software.
March 3, 2025
Handshake Men Graphs
COVID-19 boosts cardiovascular event risk
By Kate Madden Yee
COVID-19 is associated not only with acute lung damage but also with rapid growth of plaque in the coronary arteries -- and thus an increased risk of cardiovascular events.
February 4, 2025
Plaque Artery
Philips partners with Myocardial Solutions in cardio-oncology collaboration
By AuntMinnie.com staff writers
The collaboration aims to improve survival rates and bridge a gap between heart and cancer care.
January 31, 2025
Philips Rsna 2021 400
Positron lands cardiovascular practice agreement
By AuntMinnie.com staff writers
Positron Corporation has secured an agreement to facilitate installation of eight NeuSight PET-CT 64-slice scanners for an undisclosed cardiovascular practice.
January 24, 2025
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