Eric Barnes

Advanced Visualization
3D printing's legal landscape remains wild, untamed
Many of the qualities that make 3D printing such an exciting field are the same ones that create a perilous legal environment for the industry, according to experts at last week's 3DHeals conference. From patent protections to product liability, 3D printing's sparse legal track record and unique manufacturing processes raise issues that lack clear answers.
April 24, 2017
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CT
AuntMinnie.com CT Insider
April 23, 2017
Advanced Visualization
3DHeals: 3D printing start-ups demand skill, persistence
SAN FRANCISCO - Start-ups are hard enough in any field, but medical device start-ups -- including 3D printing hopefuls -- require extra helpings of dedication and persistence to succeed, according to experts speaking April 20 at the 3DHeals 2017 conference.
April 20, 2017
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CT
Lung-RADS category 4X helps diagnose lung cancer
The addition of category 4X lesions in the Lung CT Screening Reporting and Data System (Lung-RADS) imaging scheme adds value and increases malignancy yields among experienced radiologists, according to a study in Radiology. The 4X nodules turn out to be malignant in half of cases.
April 19, 2017
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CT
Sharing best practices cuts CT dose substantially
Substantial reductions in CT radiation dose can be achieved by monitoring and comparing dose across institutions -- even in a large academic health network such as the University of California. Getting buy-in from all the players involved is key, according to a study published online April 10 in JAMA Internal Medicine.
April 13, 2017
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Clinical News
Quality of China's radiology research improves
Imaging research in mainland China has witnessed significant advances in the past decade, as evidenced in part by articles published in Radiology and European Radiology, according to a recent paper in European Radiology.
April 9, 2017
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CT
CT scans validated for immune-related colitis
CT is a reliable modality for diagnosing immune-related colitis, replacing invasive colonoscopy with high diagnostic accuracy and a safer profile, according to research published April 3 in Cancer Immunology Research.
April 4, 2017
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CT
CT radiation dose falls over time, but still varies widely
CT radiation dose dropped a little over the course of a large seven-year study of patients undergoing repeat scans. But just as noteworthy were large variations in dose for repeat procedures in the same patients over time, researchers concluded in a paper published March 28 in the American Journal of Roentgenology.
April 3, 2017
2016 08 30 09 29 44 134 Radiation Symbol Circle 400
Clinical News
ACS: U.S. cancer death rates continue to fall
Overall cancer death rates continued to decline from 2010 to 2014, the latest period examined in the American Cancer Society's (ACS) annual report on cancer, the ACS said in a statement accompanying a report in the Journal of the National Cancer Institute.
March 30, 2017
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Nuclear Medicine
Role of imaging modalities is changing for PE diagnosis
The use of ventilation/perfusion SPECT scans to rule out pulmonary embolism (PE) is evolving. What used to be the definitive test for PE is shifting into a role that harmonizes with the use of pulmonary CT angiography, according to an article in the American Journal of Roentgenology.
March 30, 2017
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Using GPT‑4o with CT exams helps diagnose ovarian cancer earlier
Early detection of ovarian cancer is a persistent challenge, with more than half still diagnosed at metastatic stages.
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Subgroup analysis based on lesion size on PCCT images. The red outlined areas highlight the magnified images of lesions. (A-C) PCCT images in a 62-year-old woman with a body mass index (BMI) of 23.6, calculated as weight in kilograms divided by height in meters squared, who was diagnosed with adenocarcinoma. A lesion with a long diameter of 25 mm was identified in the right lower lobe on axial images acquired during the venous phase. For lesions less than or equal to 30 mm, decreasing section thickness improved boundary sharpness and contrast between the necrotic area and enhanced tissue, with optimal visualization at 0.4 mm. (D-F) PCCT images in a 66-year-old man with a BMI of 24.2 who was diagnosed with adenocarcinoma, revealing a lesion with a long diameter of 52 mm in the right lower lobe. For lesions greater than 30 mm, a section thickness of 1 mm demonstrated better contrast and clarity at the boundary of the necrotic area compared with 0.4 mm. This observation supported the selection of an appropriate section thickness for accurate quantification of necrotic regions within the lesion.
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