Cynthia E. Keen

ECR 2025
Momentum gathers behind European diplomas in radiology
It already takes a lot of hard work to become a radiologist, so is it really worth the extra effort to obtain a European radiology diploma? Absolutely yes, said a panel of experts at ECR 2025.
March 5, 2025
Speakers from the ECR 2025 Joint Session of the ESR and UEMS, European exams and diplomas in radiology, chaired by Prof. Katrine Riklund, Umeå, Sweden, and Dr. Miraude Adriaensen, Heerlen, the Netherlands. Photo courtesy of Dr. Barbora Horehledova.
Clinical News
What's new in noninvasive detection of skin cancer?
Researchers from Israel have developed and tested a fiberoptic evanescent wave spectroscopy system that can noninvasively identify and characterize skin cancers. They successfully identified cancerous lesions on patients' skin by touching the suspicious regions for 30 seconds with an optical fiber connected to a mid-infrared spectrometer.
November 26, 2020
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Clinical News
MRI minimizes toxicity in prostate cancer radiotherapy
Hypofractionated stereotactic body radiotherapy combined with MRI guidance to treat prostate cancer patients produced an impressively low incidence of early gastrointestinal and genitourinary toxicities, Dutch researchers have reported.
October 1, 2019
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Artificial Intelligence
Deep learning enables automatic radiotherapy planning
A multi-institutional team has developed an automated treatment planning system for intensity-modulated radiation therapy based on 3D dose prediction and dose distribution-based optimization. The researchers demonstrated that the deep-learning-based method shows promise for generating highly individualized radiotherapy plans optimized for precision and quality.
January 9, 2019
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Clinical News
Dutch develop novel 3D method to track central airways
A group from Amsterdam has examined conebeam CT projections of a 3D-printed thorax phantom and used prototype software for template generation, template matching, and triangulation to determine bronchus motion. They think markerless 3D monitoring can help in radiotherapy.
October 4, 2018
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Clinical News
Thermal imaging monitors radiotherapy efficacy
Israeli researchers have demonstrated that thermography may provide a viable radiotherapy monitoring tool for treatment optimization. They have developed a method to detect tumors in a thermal image and estimate changes in tumor and vasculature during radiotherapy.
July 25, 2018
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Clinical News
MR device eases high-dose-rate brachytherapy
Dutch researchers have helped develop an MR-conditional afterloader that can operate simultaneously with an MRI scanner. It could enable real-time high-dose-rate (HDR) brachytherapy source localization for treatment verification.
July 19, 2018
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Clinical News
The search for a dedicated cardiac CT scanner
The increasing volume of coronary CT angiography examinations suggests a clinical need for a dedicated cardiac CT scanner. A global team of engineers is leading an initiative to define and evaluate hypothetical solutions to meet this need.
September 25, 2017
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Clinical News
Dynamic PET tracks early treatment response
For head-and-neck cancer patients, dynamic PET can provide detailed characterization of the tumor microenvironment and a more accurate assessment of response, and also may be useful for cancers exhibiting a wide range of distribution volumes.
July 30, 2017
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Clinical News
Italians use in-beam PET to monitor proton range
An Italian research group has developed a new technique involving PET that enables accurate range monitoring during proton therapy. Clinical validation of the prototype began in December, with the team evaluating the treatment of a patient with cancer of the lacrimal glands.
February 1, 2017
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Top Stories
(Above) Fused axial image demonstrates uptake in the celiac ganglia. (Below) Corresponding CT scan. The celiac ganglia are visible. All figures courtesy of Dr. Jonathan Hunter, Dr. Jane Burns, and Prof. Martin O’Connell and presented at ECR 2025.
Molecular Imaging
F-18 PSMA PET-CT proves clinical value in prostate cancer
F-18 prostate-specific membrane antigen (PSMA) PET/CT is having a major impact on patient care and therapy decisions in prostate cancer, but it’s crucial to bear in mind the modality’s diagnostic quirks.
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Molecular Imaging
Combined PET scans predict progression of Alzheimer’s
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Molecular Imaging
PET scans predict outcomes for patients undergoing CAR T-cell therapy
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MRI
MRI-based nomogram provides boost in breast cancer
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CT
CT estimated to cause 5% of new cancer cases
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Machine learning standardizes bone tumor grading
By Kate Madden Yee
An AI algorithm and updated risk stratification system produce accurate and standardized bone lesion assessment on CT and MRI, French researchers have reported.
April 25, 2025
F-18 PSMA PET-CT proves clinical value in prostate cancer
By Philip Ward
F-18 prostate-specific membrane antigen (PSMA) PET/CT is having a major impact on patient care and therapy decisions in prostate cancer, but it’s crucial to bear in mind the modality’s diagnostic quirks.
April 24, 2025
(Above) Fused axial image demonstrates uptake in the celiac ganglia. (Below) Corresponding CT scan. The celiac ganglia are visible. All figures courtesy of Dr. Jonathan Hunter, Dr. Jane Burns, and Prof. Martin O’Connell and presented at ECR 2025.
Combined PET scans predict progression of Alzheimer’s
By Will Morton
Combining information from amyloid PET and FDG-PET scans can predict progression from mild cognitive impairment to Alzheimer's disease, a Spanish study has found.
April 23, 2025
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PET scans predict outcomes for patients undergoing CAR T-cell therapy
By Will Morton
PET scans performed at one or three months after patients with large B-cell lymphoma begin CAR T-cell therapy can indicate whether they are responding to the treatment.
April 21, 2025
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MRI-based nomogram provides boost in breast cancer
By Amerigo Allegretto
Pretreatment breast MRI can help quantify intratumoral heterogeneity and predict pathologic complete response in breast cancer patients.
April 18, 2025
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CT estimated to cause 5% of new cancer cases
By Will Morton
Researchers suggest that cancers associated with radiation from CT scans could eventually account for 5% of all new cases annually.
April 16, 2025
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AI-guided POCUS assists TB diagnosis in underserved areas
By Amerigo Allegretto
AI-guided POCUS can accurately detect tuberculosis (TB), according to research presented at the ESCMID conference in Vienna, Austria.
April 14, 2025
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CT effective for tracking colon cancer lymph node distribution
By Kate Madden Yee
Using CT to track lymph node distribution in colon cancer patients is more effective at identifying metastasis than conventional testing.
April 11, 2025
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PET reveals brain’s responses to music
By Will Morton
PET has provided the first neuroimaging evidence that music affects the brain’s opioid receptor system.
April 9, 2025
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SPECT/CT measure validated for diagnosing ATTR
By Will Morton
A research team in Finland has validated the accuracy of a SPECT/CT measure for diagnosing transthyretin amyloidosis.
April 7, 2025
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MRI safety manual gets a makeover
By Kate Madden Yee
Emergency situations, MRI screening, and special patients and personnel are addressed in an updated safety guide.
April 4, 2025
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Resolution on imaging access awaits World Health Assembly approval
By Maryam Payne
The WHO board has adopted the Strengthening Medical Imaging resolution and it now looks set for approval by the World Health Assembly. Prof. Hedvig Hricak moderated an important webinar on the topic last week.
April 1, 2025
Dr. Hedvig Hricak.
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