Eric Barnes

MRI
Dobutamine CMR gauges cardiomyopathy treatment response
Dobutamine stress MR, a workhorse modality for diagnosing regional cardiac wall motion abnormalities, can evaluate treatment response in patients with idiopathic dilated cardiomyopathy (IDCM), according to a study from the Netherlands.
May 1, 2007
2007 05 01 14 21 44 706
CT
Bill would boost funds for colorectal screening
After years of congressional cost-cutting, colorectal cancer screening could be in line for a booster shot. A bill introduced in the U.S. Senate (S. 1164) would restore full Medicare reimbursement for approved colorectal cancer screening exams such as colonoscopy and flexible sigmoidoscopy.
April 29, 2007
CT
Dual-source CT offers equivalent or lower dose compared to 64-slice
In one of the first head-to-head comparisons of radiation dose between dual- and single-source CT, a multi-institutional research team has concluded that for a given noise level, images can be obtained at comparable or lower doses using dual-source CT versus single-source 64-slice CT.
April 25, 2007
Digital X-Ray
Small stroke centers ill-equipped for range of presentations
You'll need more than CT and MRI scanners to run a decent stroke center, according to a stroke practice expert from Germany. You'll need staff with expertise in diagnosing and treating the full range of ischemic and hemorrhagic stroke presentations, and enough skilled interventionalists to care for patients who show up at midnight on a holiday.
April 24, 2007
2007 04 24 13 36 01 706
CT
Screening model calls VC most cost-effective colon exam
Virtual colonoscopy is the cheapest and safest way to reduce colon cancer mortality among individuals 50 years and older, according to a new study. Using a minimum 6-mm polyp size threshold, VC was more than twice as cost-effective as optical colonoscopy per life year gained.
April 23, 2007
2007 04 23 13 45 17 706
CT
Optimized barium, easier prep improve VC experience
Some see virtual colonoscopy combined with a gentler bowel prep as an important way to get patients to undergo colon cancer screening. And unlike conventional colonoscopy, VC is in a position to make things easier for the patient. Studies are experimenting with gentler regimens that produce less discomfort and mark the residual stool. Recently, researchers tried to find the optimal formula for reduced-prep VC.
April 17, 2007
CT
CAD results vary by lung nodule location, morphology; another method measures solid component of GGOs
In two recent studies that looked at automated computer-aided detection (CAD) software, researchers from the Netherlands examined the accuracy and reproducibility of automated nodule volume measurements in LungCare software. A third study by U.S. researchers sought to automatically measure the solid component of ground-glass nodules containing both solid and nonsolid components.
April 15, 2007
2007 04 11 10 07 54 706
CT
Dual-source coronary CTA images the calcium-burdened
Researchers from Switzerland hope to expand the potential coronary CT angiography patient population substantially with the aid of dual-source CT angiography, which is earning a track record for imaging fast hearts -- and in one recent study, even patients with high Agatston scores and fast hearts.
April 12, 2007
2007 04 06 16 29 26 706
CT
AuntMinnie.com CT Insider
April 10, 2007
Cardiac Imaging
AuntMinnie.com Cardiac Imaging Insider
April 8, 2007
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Molecular Imaging
PET predicts faster cognitive decline in women than men
Women initially outperformed men at low brain tau levels, but the advantage diminished as tau levels increased over time.
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MRI
Unclear explanations of contrast MRI exams heighten patient anxiety
Mammo Reading 400
Womens Imaging
Mammography screening improves survival for late-stage cancers
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Ultrasound
Ultrasound MinnieCast, Episode 2: Body imaging with RUS-PAT
How Agentic AI Is Transforming Radiology Ops
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AI model helps plan hip replacements
By Will Morton
AI technology trained on standard x-rays may help plan patient-specific hip replacements, according to research presented November 26 at RSNA 2023.
November 28, 2023
3 D Hip Replacement 400
Diabetic men show more brain plaque than their female counterparts
By Kate Madden Yee
Vessel wall MRI shows that men with type 2 diabetes carry more brain plaque burden than their female counterparts, according to study results presented November 28 at the RSNA 2023 meeting.
November 28, 2023
Diabetes Social
DTI-MRI reveals impact of soccer heading on brain
By Amerigo Allegretto
Diffusion tensor imaging (DTI)-MRI reveals declines in the brain microstructure and function caused by soccer heading.
November 28, 2023
Researchers used diffusion tensor imaging, an MRI technique, to study the impact of soccer heading on the brain. This method tracks the microscopic movement of water molecules through brain tissue to characterize the brain's microstructure. Image and caption courtesy of the RSNA.
CT reveals marijuana, cigarette smokers at higher risk of emphysema
By Amerigo Allegretto
Chest CT images reveal that cigarette and marijuana smokers are at higher risk of developing emphysema, according to an RSNA 2023 presentation.
November 28, 2023
CT images show airway changes in a 66-year-old male marijuana and tobacco smoker with cylindrical bronchiectasis and bronchial wall thickening (arrowheads) in multiple lung lobes in a background of paraseptal and centrilobular emphysema. Image and caption courtesy of the RSNA.
Deep learning predicts breast cancer risk in multinational study
By Amerigo Allegretto
A deep-learning model trained and calibrated on international mammography screening data has strong predictive performance.
November 27, 2023
Christiane Kuhl, MD, PhD, from RWTH Aachen University presented research at RSNA 2023 demonstrating the performance of a deep learning model for breast cancer risk assessment. Image courtesy of the RSNA.
History 'rhymes' for radiology and innovation
By Amerigo Allegretto
Radiology leaders need to look at history to help embrace new and future innovations, according to a talk given at the RSNA 2023 annual meeting.
November 27, 2023
Howard Chrisman, MD, from Northwestern Memorial HealthCare talks about how it's important for radiologists to understand how history rhymes when it comes to new innovations, especially as AI continues its surge into radiology clinics.
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
Heart Hologram Virtual 400
F-18 fluciclovine PET/CT detects metastatic breast cancer
By Will Morton
F-18 fluciclovine PET/CT shows promise for detecting metastatic lesions in women with invasive lobular carcinoma, according to research presented at RSNA 2023.
November 27, 2023
Breast Cancer 3 D 400
Racial disparities found in outpatient imaging for cognitive impairment
By Will Morton
Black patients receive fewer MRI scans for potential Alzheimer’s disease as well as undergo imaging at an older age than other racial groups.
November 27, 2023
A brain MRI in patient with mild cognitive impairment. Image courtesy of Joshua Wibecan, MD.
MRI muscle volumes linked to risk of TKRs
By Will Morton
Having stronger thigh muscles may lower the odds of total knee replacement (TKR) surgery in patients with osteoarthritis.
November 27, 2023
MRI images of a knee joint of a patient showing (left) severe cartilage defects compared to a patient with an intact knee joint. Image courtesy of Upadhyay Bharadwaj, MD
AI algorithm helps determine status of small renal lesions
By Liz Carey
An AI algorithm designed to determine the malignancy status of renal lesions less than 4 cm could reduce overtreatment and undertreatment of kidney cancer.
November 26, 2023
2023 11 26 Rsna Technical Exhibits
PET tracer shows promise in prostate cancer patients
By Will Morton
Gallium-68 RM2-PET/MRI is better than MRI alone for detecting relapse in prostate cancer patients, according to research presented at RSNA 2023.
November 26, 2023
An image showing potentially different sites of PET radiotracer uptake by prostate cancer tumors between U.S. approved Ga-68 PSMA-PET and experimental Ga-68 RM2. Image courtesy of Heying Duan, MD, Stanford University.
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