Eric Barnes

Nuclear Medicine
Adenosine stress DECT equivalent to SPECT, MRI
A new power combo consisting of adenosine stress and dual-energy CT (DECT) is delivering diagnostic accuracy equivalent to stress/rest cardiac MRI and nuclear perfusion (SPECT) for detecting perfusion defects, according to research presented at the American Heart Association meeting in New Orleans.
November 20, 2008
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CT
MedCAC panel members question VC's effectiveness
Virtual colonoscopy may have been dealt a setback this week after members of a U.S. government panel expressed doubts about the technology. Panel members charged with recommending whether VC should receive Medicare reimbursement said there was incomplete evidence of VC's cost-effectiveness and overall benefit as a screening tool for colorectal cancer.
November 19, 2008
CT
Navajo Nation gets remote virtual colonoscopy screening
Recruited to establish a remote virtual colonoscopy service for the largely underserved rural population of Navajo Nation, Dr. Arnold Friedman learned that determination, patience, and a dedicated onsite staff were important allies in delivering state-of-the-art colon cancer screening services.
November 17, 2008
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Cardiac Imaging
AuntMinnie.com Cardiac Imaging Insider
November 16, 2008
AI
Researchers cut false positives in lung CAD
One of the thorniest challenges in computer-aided detection (CAD) is the high rate of false-positive detections, a number that generally rises in tandem with the sensitivity of the CAD algorithm. University of Tokyo researchers recently set out to develop a new false-positive reduction method based on dual classifiers for juxtapleural and nonpleural nodules.
November 9, 2008
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CT
Prior hysterectomy complicates optical colonoscopy
In a study with important implications for colon cancer screening, Pennsylvania researchers found that both female gender and prior hysterectomy were associated with failed colonoscopy. Dr. Hanna Zafar discussed the results at last week's International Symposium on Virtual Colonoscopy in Boston.
November 6, 2008
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CT
AuntMinnie.com Virtual Colonoscopy Insider
November 3, 2008
CT
Model finds small polyp surveillance safe, cost-effective
A new model analysis concludes that surveillance of small (6- to 9-mm) colorectal polyps is both safe and cost-effective compared to immediate polypectomy, which suffers from relatively high costs, rare complications, and above all a low yield for colorectal cancer in lesions smaller than 10 mm in diameter.
November 3, 2008
Image Processing
Dual-energy VC makes tagged materials disappear
BOSTON - Researchers in Jerusalem are pushing the envelope with a novel dual-energy CT scanner and software combination that detects fecal residue tagged with barium and iodine, removing them from virtual colonoscopy images and making them easier to read.
October 28, 2008
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CT
Gastroenterologists embrace VC screening, with caveats
BOSTON - Monday's talk at the International Symposium on Virtual Colonoscopy by AGA Institute president Dr. Nicholas LaRusso seemed to underscore the significance of a growing collaboration between gastroenterologists and radiologists on the issue of VC screening.
October 27, 2008
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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
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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.
Elastography predicts treatment response in colorectal cancer patients
By Amerigo Allegretto
Elastography could help with treatment strategies for colorectal cancer patients, a study presented November 26 at the RSNA annual meeting found.
November 26, 2023
Jae Seok Bae, MD, from Seoul National University Hospital presented research at RSNA showing the efficacy of shear-wave elastography in predicting chemotherapy response in colorectal patients.
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