Advanced Visualization Digital Community
MRI-guided catheter could upgrade stroke treatment
August 22, 2014 -- A new steerable MRI-guided catheter can navigate through blood vessels from the groin to the brain in a search for clots to destroy, according to research from the University of California, San Francisco.
Decade of lung CAD brings insight, but little daily use
August 19, 2014 -- Computer-aided detection (CAD) is known to boost radiologist performance in the detection of lung nodules, and radiologists certainly need the help. But despite a decade of fine-tuning and some powerful new capabilities, CAD systems haven't found a place in daily practice at most imaging facilities
MRI histogram analysis predicts bladder tumor aggressiveness
August 15, 2014 -- Sophisticated histogram-based measurements of diffusion on MRI scans can predict bladder tumor aggressiveness noninvasively, according to a new study in Abdominal Imaging. The results could potentially help clinicians tailor therapy to individual patients, and even help predict which patients' tumors will metastasize.
Automated CT tool reveals pulmonary hypertension
August 8, 2014 -- In a new study that used computer-aided analysis, the presence of low normal lung tissue volume correlated with pulmonary arterial hypertension at 3D CT. The technique could offer a more accessible and less invasive diagnostic test than right heart catheterization, according to researchers from Japan.
Standard mammography image processing best for calcifications
July 31, 2014 -- Standard image processing algorithms help mammography detect calcification clusters more effectively than low-contrast or film-screen algorithms and could reduce false positives, according to a new study published in the August issue of the American Journal of Roentgenology.
Automated algorithms help spot change in serial CT exams
July 7, 2014 -- Most PACS vendors don't include automatic deformable image registration algorithms in their workstation software. But they should, as these can sharply reduce the time it takes for radiologists to match lung nodule locations on serial lung CT scans, according to researchers from Stony Brook Medicine.
New volume-based criteria from NIH predict cancer survival
June 25, 2014 -- Tumor assessment criteria that account for both tumor density and volume more accurately reflect tumor burden, and they may improve treatment monitoring by predicting outcomes earlier than methods that rely only on tumor density, according to research from the U.S. National Institutes of Health (NIH).
ISCT's Rubin issues challenge to image processing firms
June 20, 2014 -- Advances in image processing have given radiologists new tools to find the abnormalities they're looking for. But Dr. Geoffrey Rubin believes that radiologists need better tools -- and quickly -- before they drown in a flood of data being produced by the new generation of CT scanners.
Patients can be identified based on 3D reconstructions
June 3, 2014 -- 3D surface reconstructions can produce beautiful renderings of a patient's face. So beautiful that individuals could potentially, although not easily, be identified just from their reconstructed CT scan, according to a study published in the June issue of the American Journal of Roentgenology.
3D tumor quantification yields prognostic value in liver cancer
May 12, 2014 -- Researchers from Johns Hopkins Hospital have developed 3D quantification software that can accurately quantify the extent of liver tumor necrosis from MRI after initial chemoembolization. It can also predict patient survival by identifying responders and nonresponders to treatment.
Algorithm spots changes in follow-up brain MRI studies
May 7, 2014 -- Detecting changes in follow-up imaging studies can be difficult due to technical factors as well as human error. A software algorithm developed by a Canadian research team may be able to provide radiologists with some assistance.
Efficiency, personalized medicine will drive CAD forward
April 24, 2014 -- Clinical adoption of computer-aided detection (CAD) software has plateaued and has largely been confined to mammography. To change that, next-generation CAD software will need to deliver efficiency gains, interactivity, and algorithms that are personalized for patients, according to Dr. Eliot Siegel of the University of Maryland.
CAD detects retained surgical items on radiographs
April 21, 2014 -- Retained surgical items after surgery can be a significant source of mortality, morbidity, and cost. Computer-aided detection (CAD) technology can help prevent these costly errors, however, according to a group from the University of Michigan Health System.
SIR: Video glasses calm patients during treatment
March 24, 2014 -- Patients who wore video glasses showing pleasant movies or TV shows during interventional radiology procedures were less anxious than those who underwent procedures without glasses, concludes a new study presented at the Society of Interventional Radiology (SIR) annual meeting in San Diego.
Mammography texture analysis may predict false positives
March 24, 2014 -- False-positive results are an unfortunate aspect of mammography. But an algorithm that analyzes the texture of breast tissue on mammograms may be able to predict which patients are more likely to have negative biopsy results, paving the way for more individualized screening, according to researchers from the University of Pennsylvania.
Use of mobile devices in radiology requires extra care
March 9, 2014 -- VIENNA - Mobile devices such as tablets and smartphones are increasingly being employed in radiology applications, but users must take heed of crucial technical factors that can affect their performance for viewing images, according to a Saturday presentation at ECR 2014.
iPad offers promise for mobile assessment of acute GI bleeding
March 6, 2014 -- VIENNA - An iPad can be an effective tool for reading CT angiography studies in patients suspected of having acute gastrointestinal (GI) bleeding, according to a presentation from Italian researchers on Thursday at ECR 2014.
Radiology residents love their iPads -- most of the time
February 20, 2014 -- Is the iPad making a big difference in the lives of radiology residents who have them? For education, definitely. For clinical use, not quite yet, though the situation is evolving rapidly, according to a survey in the Journal of the American College of Radiology.
Research sheds light on why MRI CAD misses cancers
February 3, 2014 -- Despite its ability to improve the detection of breast cancer, breast MRI computer-aided detection (CAD) software still misses some. Several factors can affect the detection capabilities of the software, Korean researchers have found.
CAD uses MRI to differentiate brain tumors on FDG-PET
January 29, 2014 -- A computer-aided detection (CAD) algorithm that makes use of anatomic data from MRI scans can help radiologists differentiate between benign and malignant brain tumors on FDG-PET images, according to researchers from Yamaguchi University in Japan.
Software adds diagnostic value for heart disease patients
January 21, 2014 -- Dutch researchers have developed 3D visualization software that fuses anatomical and functional data into a single image. They believe the fused images make it easier to diagnose cases of coronary artery disease, according to a paper in the January issue of the Journal of Nuclear Medicine.
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