Eric Barnes

CT
ACRIN virtual colonoscopy training tied to performance
In the first of several upcoming studies that will analyze the ACRIN 6664 trial data, researchers examined the role of training and testing in reader performance interpreting virtual colonoscopy studies. They found that training improved overall reader sensitivity in predictable, quantifiable ways -- and that novice readers could be trained to perform as well as more experienced colleagues.
October 26, 2008
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CT
VC finds perforations from incomplete colonoscopy
New research suggests that occult colonic perforation after incomplete optical colonoscopy may be more common than previously thought. The study, which recommends low-dose CT scanning of incomplete colonoscopy patients before VC, could have workflow and patient-safety implications in facilities that routinely perform same-day VC.
October 23, 2008
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Digital X-Ray
CTA less costly than angiography for carotid artery occlusion
The results of a new cost-effectiveness analysis suggest that using CT angiography (CTA) to confirm suspected carotid occlusion is more cost-effective than catheter angiography. The study represents a rare look at the cost-effectiveness of the use of CTA for carotid disease.
October 21, 2008
CT
New neuroimaging potential seen in 320-row CT
The development of dynamic volume imaging with 320-detector-row CT is opening new diagnostic and therapeutic windows to the brain, according to researchers at a high-volume imaging facility in Las Vegas.
October 19, 2008
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CT
AuntMinnie.com CT Insider
October 14, 2008
CT
Autopsy study confirms low prevalence of adenomas in youth
A rare autopsy study of more than 3,500 individuals found that the incidence of colorectal adenomas is low in those under 50, but rises sharply in the sixth decade of life. The study, which provides important new information about the natural history of colorectal polyps and cancer in the young, supports current guidelines recommending that screening begin at age 50.
October 13, 2008
Digital X-Ray
ACRIN study: Cardiac CTA cheaper, more effective for chest pain triage
A University of Pennsylvania study of acute chest pain patients found that cardiac CT angiography (CTA) was a better triage method than the traditional standard of care, according to results presented earlier this month at the American College of Radiology Imaging Network (ACRIN) fall meeting.
October 13, 2008
Image Processing
Faster respiratory motion prediction aids radiotherapy
Respiratory motion compensation algorithms are helping to reduce the irradiation of healthy tissues during radiotherapy by compensating for the patient's breathing during treatment. Researchers from Germany have developed new algorithms that reduce the computational burden of motion-tracking algorithms while maintaining accuracy.
October 9, 2008
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CT
Dual-energy CT helps distinguish malignant lung nodules
Researchers in South Korea used a dual-energy CT (DECT) scan to perform a lung imaging task that previously required two scans, reducing the radiation dose needed for the workup. The group found that DECT enabled the detection of both contrast enhancement and lung nodule calcifications in a single scan.
October 7, 2008
Breast
MRI beats mammo for gauging breast cancer treatment response
ARLINGTON, VA - MRI is superior to mammography for evaluating response to neoadjuvant chemotherapy for breast cancer, according to early trial results from the University of California, San Francisco and nine other U.S. academic centers. The results were presented at last week's American College of Radiology Imaging Network (ACRIN) fall meeting.
October 6, 2008
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Digital X-Ray
Chest x-rays reveal atherosclerosis in patients undergoing amputations
Lower limb amputation is an increasingly common major complication of advanced peripheral arterial disease and diabetes mellitus.
Cardiac Mri Adobe Samunella
MRI
3D MRI technique helps plan treatment for pediatric heart conditions
Images of a 39-year-old who underwent screening mammography. Right craniocaudal (left) and mediolateral oblique (middle) views from preoperative mammography show suspicious grouped fine pleomorphic calcifications (arrows). After biopsy showed ductal carcinoma of situ (DCIS), patient underwent breast-conserving surgery, yielding final diagnosis of ductal carcinoma in situ (intermediate grade, hormone receptor positive). (Right) Screenshot of an output of a commercial AI tool applied to preoperative mammography. AI detected right breast lesion with score of 95% on both views (concentric colored circles). Present study’s reviewing radiologist deemed AI marking to correspond with site of DCIS.
Womens Imaging
Could AI scoring help with managing DCIS?
Axial contrast-enhanced CT scan in a 28-year-old premenopausal woman shows an incidentally detected solid-appearing left ovarian lesion (solid arrow) anterior to the uterus (U), associated with trace ascites in the right adnexa and cul de sac (dashed arrows). At pathologic analysis, this was shown to be ovarian dysgerminoma. Two readers misdiagnosed this lesion, one as a leiomyoma and one as an ovarian fibroma.
CT
Clinicians, beware: CT diagnostic accuracy varies by adnexal lesion type
Erin Stephens
Practice Management
Radiology coding update for 2026
More in Home
Mortgage discrimination tied to breast cancer outcomes
By Amerigo Allegretto
A study in JAMA Network Open found that mortgage discrimination is tied to breast cancer outcomes.
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Surgeons urged to screen for osteoporosis in THA patients
By Will Morton
Screening for osteoporosis using dedicated bone scans among total hip arthroplasty (THA) patients remains alarmingly low, according to recent research.
February 21, 2024
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PCCT improves assessment of coronary artery disease
By Kate Madden Yee
Ultrahigh-spatial-resolution photon-counting detector CT (PCCT) improves the evaluation of coronary artery disease, researchers have found.
February 20, 2024
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Annual breast cancer screening starting at age 40 saves lives
By Amerigo Allegretto
Annual breast cancer screening starting at age 40 yields the most mortality reduction, research indicates.
February 20, 2024
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AI spots unidentified brain tumor on PET imaging
By Will Morton
An AI algorithm designed for brain PET imaging found a glioblastoma in a patient that had gone undetected by physicians.
February 20, 2024
Baseline scan (A), segmentation results (B), and follow-up scan (C) from patient with molecular glioblastoma. Baseline MRI showed FLAIR hyperintensities in left thalamus and frontoparietal region (white arrowheads). In contrast to expert segmentation, in which only left thalamic region showed slightly increased uptake (red contour), AI algorithm identified additional frontoparietal lesion on baseline PET that subsequently progressed to contrast-enhancing and metabolically active lesion (red arrowheads). Image courtesy of the Journal of Nuclear Medicine.
MRI reveals functional brain alterations associated with depression
By Kate Madden Yee
Researchers have found that MRI reveals functional brain alterations that are associated with major depression.
February 20, 2024
Depression
How can radiologists prepare for breast density notification laws?
By Amerigo Allegretto
Lars Grimm, MD, from the Society of Breast Imaging spoke on how breast imaging facilities can best prepare for new breast density notification laws.
February 16, 2024
Screenshot (1072)
Can radiologists’ eye-tracking data enhance AI?
By Will Morton
Integrating eye-tracking data that map how radiologists interpret x-rays into deep learning AI algorithms could be key to developing more “human-centered” AI.
February 16, 2024
Difference between saccades, fixations, and attention heatmaps in radiologist eye-tracking studies. Image courtesy of the European Journal of Radiology.
PI-RADS optimizes MRI-based diagnostics for prostate cancer detection
By Kate Madden Yee
It's better to take Prostate Imaging-Reporting and Data System (PI-RADS) upgrading rules into account when it comes to deciding whether a patient with clinically significant prostate cancer needs a biopsy, researchers have reported.
February 15, 2024
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PET links tau pathology to speech changes in unimpaired patients
By Will Morton
Brain pathology associated with Alzheimer’s disease in cognitively unimpaired adults appears to be linked to speech changes.
February 15, 2024
Tau
ADC optimal cutoff reduces MRI-prompted breast biopsies
By Amerigo Allegretto
Applying point-of-care apparent diffusion coefficient (ADC) cutoffs from diffusion-weighted imaging could reduce MRI-prompted breast biopsies.
February 15, 2024
Apparent diffusion coefficient (ADC) measurements for benign and malignant BI-RADS category 4 or 5 lesions at MRI. (A, B) Benign BI-RADS category 4 lesion in a 55-year-old woman. (A) Dynamic contrast-enhanced MRI (DCE-MRI) scan shows a 12-mm, oval, circumscribed, homogeneous mass in the right posterior breast (arrow). (B) On the diffusion-weighted image, the lesion shows high diffusivity (arrow), with an ADC of 2.04 × 10-3 mm2/sec. Biopsy revealed benign fibroadenoma. (C, D) Malignant BI-RADS category 4 lesion in a 41-year-old woman. (C) DCE-MRI scan shows a 24-mm irregular, heterogeneous mass at the 3 o’clock position in the left breast (arrow). (D) On the diffusion-weighted image, the lesion demonstrates low diffusivity (arrow), with an ADC of 0.91 × 10-3 mm2/sec. Biopsy revealed invasive ductal carcinoma. All MRI scans are shown in the axial plane. (E) Box plot shows ADC measurements for 240 BI-RADS 4 and 5 lesions (63 malignant and 177 benign). Both prespecified optimal and conservative ADC cutoffs are indicated on the plot for reference: 1.53 × 10-3 mm2/sec (dashed line) and 1.68 × 10-3 mm2/sec (dotted line), respectively. All ADCs were calculated with maximum b value of 800 sec/mm2. The midline of each box shows the median value, and the box extends from first to third quartiles. The whiskers extend from the first and third quartiles to the smallest and largest values, respectively, if those values are within 1.5 times the IQR. If not, the length of the whiskers is limited to 1.5 times the IQR. Image courtesy of the RSNA.
Unmet social needs tied to screening mammography use
By Amerigo Allegretto
Women's unmet social needs should be considered to better promote breast cancer screening utilization and early-stage cancer diagnosis.
February 14, 2024
Woman Anxious 400
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