Cynthia E. Keen

Molecular Imaging
PennPET Explorer acquires 1st human images
Researchers at the University of Pennsylvania have published the first clinical images acquired using the prototype PennPET Explorer, the second of two large axial field-of-view whole-body PET imagers developed by the U.S.-based Explorer Consortium.
November 21, 2019
2019 11 21 20 23 6269 Penn Pet Scans 20191122070625
2016
Clinical decision-support systems: Has Europe's time come?
2016 should be a landmark year with respect to the use of radiology clinical decision-support systems in Europe. The year will mark the launch of ESR iGuide pilot programs in hospitals in at least five countries.
March 2, 2016
2016 03 02 18 40 20 783 Hospital Clinic De Barcelona 200
CT
Radiation dose and CT: What really are the essentials?
Patient dose estimates represent a dilemma. Although there has been a significant amount of research regarding patient dose assessment, international consensus has not yet been reached and further improvements are needed, according to an ECR 2015 presentation on Sunday by Dr. Willi Kalender, PhD.
March 7, 2015
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CT
Cutting-edge techniques transform practice of cardiac CT
Cardiac CT has made great strides displacing conventional invasive coronary angiography, but its potential is still being tested. A presentation on Saturday at ECR 2015 discussed state-of-the-art techniques for image acquisition and also their advantages and limitations.
March 6, 2015
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MRI
Advanced brain MRI provides insights into brain malformations
When a child is born with a serious brain-related defect, understanding the cause and its impact at the earliest stages of life is of utmost importance. Advanced MRI techniques are yielding clinically exciting discoveries and valuable information.
March 4, 2015
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Practice Management
ACR's Ted Burnes talks advocacy in radiology with AuntMinnie
Ted Burnes from the American College of Radiology spoke with AuntMinnie on achievements in advocacy and what 2026 may bring.
Heart
Molecular Imaging
PiB-PET/CT detects subtypes in cardiac amyloidosis
Contrast Injector
Practice Management
HPI: 13.5B mL of contrast media administered from 2011 to 2024
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Ultrasound
AI ultrasound tool could reduce unnecessary biopsies by 60%
Lung Ct Images
RSNA 2025
3D CNN model estimates MACE risk from chest CT
More in Home
ACR's Ted Burnes talks advocacy in radiology with AuntMinnie
By Amerigo Allegretto
Ted Burnes from the American College of Radiology spoke with AuntMinnie on achievements in advocacy and what 2026 may bring.
December 8, 2025
Screenshot (91)
PiB-PET/CT detects subtypes in cardiac amyloidosis
By Will Morton
PiB-PET/CT shows strong promise as a next-generation diagnostic tool for cardiac amyloidosis.
December 5, 2025
Heart
HPI: 13.5B mL of contrast media administered from 2011 to 2024
By Kate Madden Yee
The findings are sobering, as contrast use contributes to environmental pollution.
December 5, 2025
Contrast Injector
AI ultrasound tool could reduce unnecessary biopsies by 60%
By Amerigo Allegretto
An AI tool could help reduce unnecessary breast biopsies, but should be used in conjunction with radiologist decision-making.
December 5, 2025
2025 12 05 Ai Decision Support Tool Ultrasound Thumbnail
3D CNN model estimates MACE risk from chest CT
By Kate Madden Yee
The algorithm appears effective at predicting major adverse cardiovascular events (MACE) even when applied to diverse patient groups.
December 5, 2025
Lung Ct Images
What is the role of AI quantitation of coronary plaque?
By Liz Carey
Tracking coronary artery calcium score alone is not enough, according to an RSNA presentation.
December 4, 2025
Rsna 2025 Welcome
PET/MRI detects ‘unknown’ generators of musculoskeletal pain
By Will Morton
Potential pain generators were identified by increased F-18 FDG radiotracer uptake on PET and/or structural abnormalities on MRI.
December 4, 2025
Lbp
Axillary ultrasound predicts nodal disease burden in breast cancer
By Amerigo Allegretto
Axillary ultrasound can predict significant nodal disease burden in breast cancer patients, which could help avoid biopsy.
December 4, 2025
Ultrasound Collage
AI reduces MRI's carbon footprint
By Kate Madden Yee
Using AI with MRI imaging reduces exam time and therefore energy consumption and carbon dioxide emissions.
December 4, 2025
Co2 Cloud Adobe Stock
Air pollution linked to more advanced coronary artery disease
By Kate Madden Yee
Even at low exposure levels, air pollution is associated with more plaque in the coronary arteries, researchers reported.
December 4, 2025
City Air Pollution
The 2025 PACSMan Awards -- The last hurrah
By Michael J. Cannavo
For perhaps the final time, consultant Michael J. Cannavo doles out his annual PACSMan Awards.
December 3, 2025
Cannavo Michael Rsna 2025 Thumbnail
Cryoablation treats early-stage breast cancer in older women
By Amerigo Allegretto
Cryoablation is effective in treating early-stage, ER+ breast cancer in older women who do not undergo surgery.
December 3, 2025
Rsna 2025 Welcome
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