Eric Barnes

Clinical News
Two lung CAD systems unaffected by low dose
A face-off between two lung nodule computer-aided detection (CAD) systems found a big difference in sensitivity for detecting solid pulmonary nodules, but it also revealed the good news that nodule detection was unaffected by low-dose scanning. The number of false positives also differed significantly between the two systems, researchers from Germany reported.
May 10, 2009
2009 05 08 15 29 34 93 Table1 450 V2
Clinical News
VC not cost-effective in FOBT-positive screening population
Patients with positive screening results on fecal occult blood tests (FOBTs) should probably head straight to optical colonoscopy for their next exam, according to a new study from the Netherlands. Virtual colonoscopy may not be cost-effective in this population because so many FOBT-positive patients would need referral for polypectomy anyway, the researchers said.
May 7, 2009
Clinical News
Biological dose measures promise new view of cardiac imaging risk
The development of biological radiation dose measurement portends a future of far greater accuracy in gauging the damage wrought by ionizing radiation in imaging exams. Two studies, focused on cardiac CT and conventional angiography exams, respectively, offer the potential of maximizing image quality while minimizing the potential radiation risk to the patient.
April 30, 2009
2009 04 27 11 44 45 516 Schwab 49yearold
Clinical News
VC CAD plus 3D improves sensitivity for novice readers
Computer-aided detection (CAD) with 3D viewing improves sensitivity for polyp detection among less experienced readers, and may also speed up reading times and reduce false-positive detections. On the other hand, the performance of experienced readers did not improve significantly with CAD use, researchers from the University of Rome concluded.
April 20, 2009
2009 04 20 15 27 04 98 Reportingtime 2009 04 21
Clinical News
Adding chest CT to VC not cost-effective, study finds
Adding a chest CT scan to screening virtual colonoscopy isn't cost-effective in a cohort of average-risk patients, a new model-based analysis concluded. Although the additional anatomic coverage increased the clinical efficiency of CT-based screening, the combined test would not detect enough serious pathology to cover the costs of detection and follow-up of disease.
April 6, 2009
Clinical News
MDCT holds promise for advanced osteoporosis scan
CT could become an important player in the emerging field of structural bone assessment, according to researchers from Berlin and San Francisco. They believe the modality is capable of evaluating trabecular structures from the extremities to the vertebrae, outperforming even high-resolution peripheral quantitative CT (HR-pQCT) in some conditions.
April 5, 2009
2009 04 01 13 19 49 372 Issever thumb 04 09
Clinical News
Virtual colonoscopy CAD finds most cancers
A computer-aided detection (CAD) algorithm designed to find polypoid lesions of the colon also does fairly well at finding frank cancers, researchers from the U.K. concluded. But sensitivity varies depending on the system settings and the quality of the prep.
April 2, 2009
Clinical News
CT for brain metastasis unnecessary after PET/CT
A CT scan is often ordered to find brain metastases in lung cancer patients. But if a whole-body PET/CT scan is already available from the original workup, there's no need for a dedicated CT scan, according to researchers from Belgium, who found that the CT portion of the PET/CT scan is enough for the initial diagnosis.
April 1, 2009
2009 04 01 15 40 34 412 Dewever thumb 03 09
Clinical News
Automated CT volumetry of lymph nodes gauges treatment response
Cancer patients who respond to neoadjuvant therapy have a better prognosis than nonresponders, of course, but with the exception of FDG-PET, reductions in the size of tumors treated with chemotherapy or radiation have been difficult to gauge using imaging modalities that are capable of delineating the anatomy.
March 26, 2009
Clinical News
VC/AAA screening combo cost-effective in older adults
A new analytic model has found that virtual colonoscopy is a highly cost-effective colon cancer screening method for older adults in the Medicare population, especially when combined with screening for abdominal aortic aneurysm (AAA), a test performed using the same CT dataset at little additional cost.
March 25, 2009
2009 03 26 10 00 54 744 Pickhardt thumb 03 09
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KA Imaging to highlight portable dual-energy x-ray tomosynthesis at ECR
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So much more than Mozart: Vienna gets set to party
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Radiology's legendary annual party will take place on Saturday 2 March at Gasometer, Guglgasse 8, 1110 Vienna. Doors open at 20:45, and tickets cost €65 each. Photo courtesy of the ESR.
EBR unveils 2024 schedule for EDiR
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The European Board of Radiology (EBR) has released the initial calendar for the 2024 European Diploma in Radiology (EDiR) examinations.
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PanTera signs supply agreement with Bayer for actinium-225
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PanTera has signed an agreement with Bayer for the supply of actinium-225 starting in the second half of 2024.
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