RSNA 2011 News
DR chest tomosynthesis helps characterize lung lesions
December 12, 2011 -- The use of chest tomosynthesis with a digital radiography (DR) system enabled radiologists to characterize pulmonary lesions, circumventing the need for further diagnostic workup of patients with CT, according to a study by Italian researchers.
iPad offers value in mobile emergency CT reading
December 9, 2011 -- Although the experience provided by an iPad for reviewing medical images still has room for improvement, the popular tablet can be employed for remote reading of emergency CT studies by radiologists on the move, according to research presented at the RSNA 2011 meeting in Chicago.
DR chest tomo reduces number of CT exams in Sweden
December 6, 2011 -- Using chest tomosynthesis with a digital radiography system reduced the number of chest CT exams performed at a Swedish institution, leading to lower radiation dose and better use of CT resources, according to a presentation from last week's RSNA meeting.
Same CCTA results mean different risks in men and women
December 5, 2011 -- CHICAGO - Researchers have long known of differences between men and women in the rate of cardiac disease and resulting morbidity, but a new study presented at RSNA 2011 suggests that the same coronary CTA (CCTA) results require different interpretation and risk assessments depending on the patient's gender.
Repeat brachytherapy a viable option for prostate cancer
December 2, 2011 -- CHICAGO - Prostate cancer patients who undergo brachytherapy treatments that fail due to inadequately placed radioactive seeds -- but who don't develop distant metastases -- may have better luck the second time around, concluded a study presented at the RSNA meeting.
Lossy image compression affects CAD performance
December 1, 2011 -- CHICAGO - Although it doesn't influence 3D volume rendering, lossy image compression can negatively affect computer-aided detection (CAD) performance, according to research presented at the RSNA 2011 meeting.
An RSNA 'Christmas Carol'
December 1, 2011 -- CHICAGO - For years, the PACSman Awards were an annual tradition in AuntMinnie.com's coverage of the RSNA conference. With the PACSman hanging up his typewriter last year, the baton has now passed to the Dalai Lama of PACS, radiologist and blogger Dr. Sam Friedman, who shares his unique RSNA experience.
Implementing meaningful use isn't a cakewalk yet
December 1, 2011 -- CHICAGO - From a radiology perspective, meaningful use guidelines are challenging, with a minefield of unknowns and pitfalls. It's perhaps unsurprising, then, that a panel discussion on how radiology practices are actually handling meaningful use attracted quite a crowd on Tuesday at RSNA 2011.
PET/MRI surpasses PET/CT for some abdominal lesions
December 1, 2011 -- CHICAGO - PET/MRI can outperform PET/CT for lesion conspicuity and characterization in the abdomen, particularly in the liver, according to a study presented by Swiss researchers at the RSNA 2011 meeting.
iPads are OK for VC reviews, but take longer
November 30, 2011 -- CHICAGO - Apple's iPad 2 can be used safely and effectively for 2D reviews of virtual colonoscopy images, but using the device for this purpose takes longer and may require extra training, Italian radiologists reported at the RSNA 2011 meeting.
fMRI finds brain changes from violent video games
November 30, 2011 -- CHICAGO - Just one week of playing a violent video game produced measurable differences in blood flow to select areas of the brain on functional MRI (fMRI), which may explain why game playing has been linked to behavioral changes in some people.
Easy 1-day VC prep delivers high sensitivity
November 30, 2011 -- CHICAGO - Virtual colonoscopy using a same-day bowel preparation showed high diagnostic accuracy and equally high patient satisfaction in a study from Italy presented on Wednesday at the RSNA 2011 meeting.
Baseline mammogram callback rates too high, study finds
November 30, 2011 -- CHICAGO - Recall rates for baseline screening mammograms are too high and could affect women's future compliance with screening, according to research presented Wednesday morning at the RSNA 2011 meeting.
ACR's CT dose registry goes for quality, quantity
November 30, 2011 -- CHICAGO - The American College of Radiology's (ACR) Dose Index Registry pilot project has already amassed a critical number of studies, while developing ways to keep the data accurate despite wide variations in practice patterns and study nomenclature, according to a Wednesday presentation at RSNA 2011.
Frequent soccer 'heading' may cause brain injury
November 30, 2011 -- CHICAGO - Too much "heading" a soccer ball could result in brain abnormalities similar to those found in traumatic brain injury patients, researchers from New York found in a study using diffusion-tensor MRI.
MRI shows fish-filled diet helps lower Alzheimer's risk
November 30, 2011 -- CHICAGO - MR images suggest that eating baked or broiled fish on a weekly basis can reduce the risk of developing mild cognitive impairment and Alzheimer's disease, according to research presented on Wednesday at the RSNA 2011 show.
DBT helps detect, characterize dense tissue masses
November 30, 2011 -- CHICAGO - Digital breast tomosynthesis (DBT) shows promise in detecting and characterizing masses, particularly in women with dense breast tissue, researchers said in a Tuesday session at the RSNA meeting. But the technology still has some important areas for growth.
Data-mining tool identifies overexposed chest x-rays
November 30, 2011 -- CHICAGO - Taking a high-quality portable chest x-ray can be difficult, leading to an overexposed image when digital radiography equipment is used. One solution to reduce overexposures is a new data-mining tool, according to a Tuesday presentation at the RSNA 2011 meeting.
Study backs mammography screening in women under 50
November 29, 2011 -- CHICAGO - In a study of women ages 40 to 49 screened with mammography, the risk of finding invasive breast cancer was similar regardless of whether a woman had a family history of the disease, indicating that this age group would benefit from annual screening.
FDG-PET is cost-effective 1st imaging option for dementia
November 29, 2011 -- CHICAGO - FDG-PET is more cost-effective in an initial workup of dementia patients, while amyloid PET imaging is more cost-effective as the secondary imaging option in a tertiary care setting, according to a study presented on Monday at the RSNA 2011 conference.
iPad up for task of assessing pulmonary nodules
November 29, 2011 -- CHICAGO - Apple's iPad appears feasible for use by radiologists in assessing pulmonary nodules, according to a study from Italy presented on Tuesday at the RSNA 2011 meeting.
Siemens beefs up CT line, launches ultrasound system
November 29, 2011 -- CHICAGO - A pair of new CT scanners is pacing the RSNA 2011 product introductions from Siemens Healthcare. The company is also promoting Biograph PET/CT and its new Acuson S1000 ultrasound system, and is demonstrating new product launches in healthcare informatics, digital radiography, and interventional radiology.
PET/CT prevents dissections for head and neck cancer patients
November 29, 2011 -- CHICAGO - Using F-18 FDG-PET/CT scans to evaluate the response of patients who received chemoradiotherapy for head and neck cancer can prevent unnecessary dissections for some, researchers from the U.K. and the U.S. said at an RSNA 2011 scientific session.
MRI rules supreme in postoperative knee, but challenges remain
November 29, 2011 -- CHICAGO - Advances in procedures such as knee replacement, ligamentous reconstruction, and articular cartilage and meniscus repair have led to rapid growth in open and arthroscopic knee surgery. This has heightened demand for postoperative MRI, yet the topic is barely covered in the literature, according to Swiss researchers.
Mammography, CT, PET/MRI pace Philips RSNA product debuts
November 29, 2011 -- CHICAGO - Philips Healthcare is highlighting its renewed push in mammography in its RSNA booth, as well as new product introductions in CT and the ongoing development of its PET/MRI program, which got a boost with a key regulatory clearance before the show.
Non-DICOM-compliant CDs are increasingly common
November 29, 2011 -- CHICAGO - The Mayo Clinic in Rochester, MN, has experienced a disconcerting increase over the past four years in the number of outside image CDs that fail to conform to the DICOM standard, according to a study presented on Monday at the RSNA 2011 meeting.
Study shows advanced imaging growth coming to an end
November 29, 2011 -- CHICAGO - The rapid rise in the early 2000s of utilization of advanced imaging modalities such as CT, MRI, and nuclear medicine has come to an end, according to researchers at Thomas Jefferson University in Philadelphia.
Pay attention! A different brain pathway for kids with ADHD
November 29, 2011 -- CHICAGO - Researchers employing functional MRI have found that children with attention deficit/hyperactivity disorder (ADHD) may show different brain activity patterns when processing visual attention information.
AMA president: Radiologists face income 'triple jeopardy'
November 28, 2011 -- CHICAGO - The failure of the congressional "supercommittee" puts radiologists, in particular, in triple jeopardy for income cuts, warned the president of the American Medical Association (AMA) in a plenary speech at this week's RSNA 2011 meeting.
New angio system leads GE's RSNA product debuts
November 28, 2011 -- CHICAGO - At the top of the agenda in the RSNA 2011 booth of GE Healthcare is a new laser-guided, robotic-controlled interventional angiography system that was unveiled with fanfare at this week's meeting. Also featured are patient-controlled environments for mammography and MRI, a new mobile x-ray system, and a new entry in the vendor's PET/CT product line.
Nuclear medicine shows promise for dense breast tissue
November 28, 2011 -- CHICAGO - Nuclear medicine modalities show promise for breast cancer screening and diagnosis in women with dense breast tissue, although the various forms are still evolving, RSNA 2011 attendees learned at a Monday morning course.
CT and violin makers create beautiful music together
November 28, 2011 -- CHICAGO - At a press briefing at the RSNA 2011 show, researchers and violin makers showed how they used CT to examine a Stradivarius violin noninvasively and then recreate it using computer-controlled machinery.
Dormez-vous? Hypnosis can overcome MRI claustrophobia
November 28, 2011 -- CHICAGO - More radiologists may soon be keen to learn about the art and science of hypnosis, following its successful use in France in patients who suffered from claustrophobia prior to undergoing MRI.
Imaging evolves to lead atherosclerosis care
November 28, 2011 -- CHICAGO - The management of atherosclerosis, the No. 1 cause of death in the U.S., has been reinvented by advances in imaging technology, according to a panel presentation on Sunday at the RSNA 2011 meeting.
CT use varies widely across U.S., study shows
November 28, 2011 -- CHICAGO - Medicare CT use varies widely depending on geography -- so widely that beneficiaries in the highest utilization state receive 70% more CT scans than those in the lowest state, according to researchers from Philadelphia.
Toshiba RSNA highlights include CT, MRI, ultrasound
November 28, 2011 -- CHICAGO - A new CT scanner, a pair of new ultrasound systems, a wireless digital x-ray unit, and enhancements in coil technology for its MRI line are among the new product launches for Toshiba America Medical Systems at the RSNA 2011 meeting in Chicago.
BI-RADS 3 lesions common on screening US, but rarely malignant
November 27, 2011 -- CHICAGO - BI-RADS 3, or "probably benign," lesions are seen in a whopping 20% of patients after three rounds of screening ultrasound, but they are rarely malignant, according to researchers from Southwoods Imaging Center in Youngstown, OH.
Dual-energy CT can identify dangerous thrombi
November 27, 2011 -- CHICAGO - The use of dual-energy CT with spectral imaging can differentiate bland thrombi in the portal vein from more dangerous tumor thrombi in patients with hepatocellular carcinoma, researchers reported at the RSNA 2011 meeting on Sunday.
FDG-PET/CT assesses early chemo response in breast cancer
November 27, 2011 -- CHICAGO - FDG-PET/CT's ability to evaluate pathological response after two cycles of neoadjuvant chemotherapy could help breast cancer patients avoid ineffective treatment, according to a study presented on Sunday at the RSNA 2011 meeting.
Structured report templates gaining visibility at RSNA
November 27, 2011 -- CHICAGO - What's new about structured report templates at the RSNA 2011 meeting, which begins its whirlwind week today in the Windy City? There's plenty to learn about this concept as it continues to move toward radiology practice-changing adoption.
The future of radiology is bright, RSNA president says
November 27, 2011 -- CHICAGO - Radiology is beset with challenges ranging from regulatory to monetary. However, in his presidential address at the RSNA 2011 meeting, Dr. Burton Drayer said he preferred to focus on the "rainbows instead of the impending storm clouds."
RSNA 2011 Scientific and Educational Presentations
November 15, 2011 -- MRI's ability to positively affect so many different clinical areas will be on display at the RSNA 2011 meeting in Chicago. From pediatric and breast imaging to high-field techniques for assessing mild traumatic brain injury and compact technology in the operating suite, scientific paper presentations, refresher courses, and education exhibits will show how the modality continues to expand its utility.
November 14, 2011 -- With all of the attention being paid to reducing radiation dose to patients, ultrasound is getting a renewed look in many clinical indications. That new emphasis will be evident at the RSNA 2011 meeting, where a number of presentations will evaluate the utility of ultrasound versus CT, particularly in the bowel.
November 11, 2011 -- There will be much to learn in imaging informatics at RSNA 2011 as radiologists and IT professionals delve into the ways that informatics can improve the performance of a radiology department, assist daily work life, and look after patients' clinical management in ways that were unheard of before electronic healthcare records.
November 10, 2011 -- Wide-area detectors, dual-source scanners, fast kV switching, and new contrast protocols that leverage CT's growing spatial and temporal resolution are important sides of the CT picture that will be showcased in presentations at the RSNA 2011 meeting in Chicago.
November 09, 2011 -- For the RSNA 2011 conference, attendees will encounter sessions and posters that examine current issues in breast imaging, such as imaging of reconstructed breasts and management of high-risk lesions. Breast ultrasound also will be a highlight this year.
November 08, 2011 -- At this year's annual RSNA meeting, the advance of hybrid imaging and the development of new imaging agents are expected to be among the most intriguing developments in molecular imaging and nuclear medicine in Chicago.
November 07, 2011 -- PACS technology is always a hot topic at the RSNA meeting, and this year will be no different. Interest in mobile devices continues to explode, no doubt aided by the U.S. Food and Drug Administration's decision in early 2011 to clear an application for diagnostic use on Apple's iPad and iPhone.
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