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Little Value in Cardiac CT for Those at Low Risk
The Los Angeles Times weighs in on a study that raises doubts about how much people without any significant risk factors for heart disease benefit from CT angiography screening.
SPECT Helps Army Confirm Hard-to-Catch Brain Injuries
According to an Associated Press report, doctors at Fort Campbell are using SPECT to diagnose mild traumatic brain injuries in soldiers when traditional CT and MRI scans have been less helpful.
Stroke Evaluation App Could Speed Care
CNN looks into an app that uses CT images to help doctors evaluate possible strokes using smartphones. |
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 Respiratory gating techniques have significantly improved the accuracy of PET scans—provided the patient has normal breathing patterns. But in patients with erratic breathing, much of that accuracy can be lost. Research using existing tools in a new way to better image those patients was presented at SNM’s annual meeting earlier this month. In this issue’s E-News Exclusive, CT images acquired throughout the breathing cycle are used to calculate tumor motion.
— Jim Knaub, editor |
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4D CT Offers Alternative to Gated PET Studies for Assessing Tumor Motion
Research presented earlier this month at SNM’s 58th annual meeting examined how nongated PET corrected with information from a 4D CT scan may improve imaging in patients who do not benefit from gated PET scans. The 4D CT scan is used in an alternative way to assess tumor and normal organ motion.
“Breathing irregularities can lead to significantly underestimated lesion activity in respiratory-gated PET imaging,” said Boon-Keng Teo, PhD, an assistant professor of radiation oncology at the University of Pennsylvania in Philadelphia. “Nongated PET imaging corrected with 4D computed tomography may be more effective for imaging patients with irregular breathing. This could potentially lead to a more robust and quantitatively accurate reading of active tumors.”
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 Information Not-So-Super Highway
Imaging Associates of North Mississippi Magnolia found a way to get maximum use from less-than-maximum bandwidth, allowing for improved communication among providers in the network and better patient care. Read more »
Dr. Oz, Thyroid Shields & Mammography
Last year, the popular TV doctor recommended that women request thyroid shields to wear during their mammograms. His message went viral and ultimately led to a debate with radiology experts in an April episode. Read more »
MRI CAD — Working to Improve Specificity
A Connecticut radiology group uses computer-aided detection to bring specificity to the sensitivity of breast MRI technology. Read more »
ARRS Reporter's Notebook
Read about some of the latest CT and MR news presented during the recent American Roentgen Ray Society annual scientific meeting in Chicago. Read more »
On the Case
Check out our new original case study department, edited by radiologist Rahul Pawar, MD. Read more »
Also, you can check out the entire issue in the Radiology Today digital edition.
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