Eric Barnes

Image Processing
Advanced image processing stitches together CE images
An image processing technique forged in Japan could make wireless capsule endoscopy (CE) more useful by analyzing and cobbling together the somewhat unpredictable sequence of small intestine images generated by the tiny capsule endoscopy cameras.
August 30, 2009
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CT
Most choose VC over colonoscopy, study shows
A new study from the Netherlands has found that most patients preferred reduced-prep virtual colonoscopy over conventional optical colonoscopy. Patients judged reduced-prep VC, both prep and procedure, as less burdensome, a fact the researchers hope could lead to greater compliance in colorectal cancer screening.
August 26, 2009
Nuclear Medicine
NEJM study: Imaging procedures, radiation growing
Imaging procedures are a major and growing source of ionizing radiation in the U.S. and can result in high cumulative levels of radiation, concludes a new study in the New England Journal of Medicine.
August 25, 2009
CT
Negative CCTA clears chest pain patients for 3 years, inexpensively
A new study has found that chest pain patients without significant stenoses at coronary CT angiography (CCTA) had no cardiac events, deaths, or interventions within three years of being scanned.
August 25, 2009
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Editor's Note
Advanced breast imaging gets readier; PACS, CAD team up; Minnies last chance
August 19, 2009
CT
Brazilian team marries lung CAD with PACS
Nearly all computer-aided detection (CAD) systems in clinical use today have a major shortcoming: the need to transfer image data to a separate workstation to run CAD software, with CAD data remaining separate from the PACS images radiologists read in their normal workflow. Researchers from São Paulo may have the answer.
August 19, 2009
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CT
Texas-sized heart screening law set for September debut
Is it groundbreaking public policy or a case of the law outpacing the clinical evidence? Either way, the eyes of Texas are following the potential impact of new legislation that will take effect on September 1 requiring insurers to pay for CT and ultrasound scans for atherosclerosis screening.
August 16, 2009
CT
Wider field-of-view speeds 3D virtual colonoscopy
Virtual colonoscopy is not only faster, it's just as accurate when readers increase the field-of-view and perform a single fly through rather than two for each view (prone and supine), say researchers from the University of Wisconsin in Madison.
August 13, 2009
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CT
Coronary CTA beats calcium scoring for short-term prognosis
Coronary CT angiography (CTA) outperforms calcium scoring for predicting short-term outcomes, say Michigan researchers. Three months after the scans, coronary CTA was head and shoulders above calcium and other risk factors as a prognosticator of major adverse cardiac events.
August 13, 2009
2009 08 07 13 41 25 461 Chinnaiyan Thumb 70
Cardiac Imaging
AuntMinnie.com Cardiac Imaging Insider
August 9, 2009
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Nuclear Medicine
LLMs rapidly evolving in nuclear medicine
Large language models (LLMs) are widely used to handle the large volume of text data generated in nuclear medicine.
2025 10 24 Jmri Said Fig2 Thumbnail
MRI
DWI with fat correction identifies liver scarring in MASLD patients
Emergency Sign
Ultrasound
Ghost scans problematic in POCUS trauma exams
Prostate Imaging
Molecular Imaging
PSMA-PET may require selective use to be cost-effective
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ChatGPT identifies incidental CT findings
By Amerigo Allegretto
ChatGPT-4 performs well in identifying incidental findings on CT via a process called single-shot learning.
January 11, 2024
Computer Brain Ai 400 (1)
Radiologists in Europe ramp up testing of AI
By Will Morton
Four out of seven commercially available AI algorithms for detecting lung nodules on x-rays performed better than human readers in a recent study.
January 11, 2024
Example chest x-rays from a public test set illustrate algorithm and reader similarities to and discrepancies from the reference standard. A specialized radiologist determined the reference standard score (0, no nodule present; 100, one or more nodules present), and algorithms and human readers provided a probability score between 0 and 100 for each patient of the likelihood that the patient was a nodule case. (A) Radiograph in a man (age, 72 years) with a nodule present (reference standard score, 100) shows a true-positive result based on the average algorithm scores. (B) Radiograph in a man (age, 68 years) without a nodule present (reference standard score, 0) shows a true-negative result based on the average algorithm scores. (C) Radiograph in a woman (age, 64 years) without a nodule present (reference standard score, 0) shows a false-positive result based on the average algorithm scores. (D) Radiograph in a man (age, 37 years) with a nodule present (reference standard score, 100) shows a false-negative result based on the average algorithm scores. Corresponding lateral images and CT scans (when available) for these patients are presented in Figure S2 (supplementary data). The images shown in this figure were part of a public subset and not part of the set on which metrics are reported, which remains confidential for reevaluation in the future. Algorithm scores provided for the images are raw, uncalibrated scores and cannot be directly compared to each other; they are provided for indicative purposes only. Image and caption courtesy of Radiology.
Cannabis and the brain: What's the long-term impact?
By Philip Ward
Researchers in New Zealand have used MRI to evaluate the effects of cannabis on the aging brain. We caught up with Rebecca Lee for an update.
January 11, 2024
Cannabis Marijuana
Point-of-care decision support reduces unnecessary CT, MRI imaging
By Kate Madden Yee
A point-of-care, web-based clinical decision support tool shows promise for reducing the incidence of inappropriate CT or MR imaging, patients' radiation exposure, and even carbon emissions caused by unnecessary exams.
January 11, 2024
Checklist
Ultrasonic flow ratio reliable for assessing coronary stenosis
By Amerigo Allegretto
Ultrasonic flow ratio is a reliable method for computing fractional flow reserve in assessing coronary stenosis.
January 11, 2024
Heart Attack Disease 3 D 400
PCCT overcomes image limitations for stenosis quantification on CCTA
By Kate Madden Yee
Photon-counting detector CT (PCCT) with virtual monoenergetic imaging reconstruction shows promise for quantifying stenosis with coronary CT angiography (CCTA).
January 10, 2024
82-year-old man with calcified stenosis in left main artery who underwent coronary CTA by PCCT. Curved multiplanar reformatted images at varying virtual monoenergetic imaging (VMI) levels (40-140 keV) show stenosis at each level. Percent diameter stenosis (PDS) decreased from 92.5% at 40 keV to 53.1% at 140 keV. Extent of calcium blooming artifacts decreased from 100% at 40 keV to 72.3% at 140 keV. Image and caption courtesy of the American Journal of Roentgenology.
PET scanner visualizes brain activity when people cough
By Will Morton
A recently developed PET camera appears to enable imaging during head motion and has revealed molecular brain patterns in patients when they cough.
January 10, 2024
Statistical parametric mapping (SPM) results. Brain regions with significant activation in voluntary cough (A), induced cough (B), and suppressed cough (C) compared with rest. Image courtesy of Scientific Reports.
MRI shows PTSD sufferers have smaller cerebellums
By Kate Madden Yee
MRI shows that people with post-traumatic stress disorder (PTSD) have a cerebellum about 2% smaller than adults without the condition.
January 10, 2024
Firefighter Explosion 400
Diagnostic errors tied to patient harm
By Amerigo Allegretto
Diagnostic errors, including those from radiology among hospitalized adults who died or were transferred to the ICU, are common.
January 10, 2024
Emergency 400
CBBCT shows superiority over mammography in small studies
By Amerigo Allegretto
Conebeam breast CT (CBBCT) has superior diagnostic performance than that of mammography in small studies.
January 10, 2024
Ct Scan Patient 400 (1)
FAPI-PET predicts treatment response in patients with rheumatoid arthritis
By Will Morton
FAPI radiotracer uptake on PET/CT imaging may be a biomarker for identifying early responders to rheumatoid arthritis (RA) treatment.
January 9, 2024
Representative Ga-68 FAPI-04 and F-18 FDG-PET/CT images of responders at three month follow-up. Patient #11 was a 50-year-old man with 28 affected joints detected in PET/CT. Joint activity decreased after treatment with Tripterygium wilfordii, methotrexate, adalimumab, and prednisone. In patient #8 (a 65-year-old woman), Ga-68 FAPI-04 PET/CT showed 12 affected joints. Joint activity decreased from baseline after three months of treatment with Tripterygium wilfordii and methotrexate.
Research team highlights interactive patient tool for mammography results
By Amerigo Allegretto
Researchers have developed a virtual tool for women undergoing breast cancer screening to interact with their mammography results.
January 9, 2024
Breast Screening Mammo
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