Wayne Forrest

Nuclear Medicine
PET/MRI matches PET/CT for patients with suspected dementia
CHICAGO - Simultaneous PET/MRI can produce diagnostic-quality brain scans and interpretation results that compare favorably with PET/CT in patients with clinically suspected dementia, according to a study presented on Thursday at RSNA 2013.
December 4, 2013
2013 12 05 11 31 02 103 Friedman Petmri 500 20131205183335
Nuclear Medicine
FDG-PET/MRI aids patients with suspected pelvic malignancy
CHICAGO - Evidence for the efficacy of whole-body FDG-PET/MRI continues to mount, as the hybrid modality outperformed MRI alone for staging women with suspected pelvic malignancies in a study presented at RSNA 2013 on Wednesday.
December 3, 2013
2013 12 02 11 32 59 473 Rsna2013 200
Nuclear Medicine
Siemens RSNA launches include Force CT scanner, angio unit
CHICAGO - Siemens Healthcare is launching a range of new products at this week's RSNA meeting, including the third generation of its dual-source CT architecture, a new angiography system, and a major ultrasound technology upgrade.
December 3, 2013
2013 12 04 15 43 28 684 Siemens Syngovia Screenshot 450
MRI
7T MRA delves deeper into intracranial aneurysms
CHICAGO - If and when it is ready for routine clinical use, 7-tesla time-of-flight MR angiography (MRA) will provide "superior assessment" of aneurysms and related vessel features, according to a study presented on Tuesday at RSNA 2013.
December 2, 2013
2013 12 02 18 27 02 935 Umutlu Mra 500 20131203013313
MRI
MRI technique shows low iron in ADHD patients' brains
CHICAGO - An MRI technique called magnetic field correlation is being used to measure iron levels in the brains of children with attention deficit/hyperactivity disorder (ADHD) to improve ADHD diagnosis, according to a study presented at RSNA 2013.
December 2, 2013
2013 12 01 16 48 24 396 Adhd Iron 500 20131202002814
MRI
MRI technique shows how energy drinks alter heart function
CHICAGO - Using a novel cardiac MRI technique, German researchers found significantly increased heart contraction rates in the left ventricle of healthy young adults one hour after they consumed energy drinks, in a study presented on Monday at the RSNA annual meeting.
December 1, 2013
2013 12 01 10 57 39 897 Dorner Energy Drinks 450 20131201180222
MRI
MR spectroscopy uncovers brain differences in preterm infants
Using MR spectroscopy, researchers at Children's Hospital Los Angeles may have found a link between premature birth and developmental issues in the brain's white matter that could put these newborns at greater risk for problems later in life.
November 25, 2013
2013 11 25 15 56 37 58 Bluml Mrs Image Rsna 02 400 20131125230347
Nuclear Medicine
FDA warns of risks with Lexiscan, Adenoscan stress agents
The U.S. Food and Drug Administration on November 20 issued a warning about a "rare but serious risk of heart attack and death" with the use of two cardiac nuclear stress test agents made by pharmaceutical developer Astellas.
November 19, 2013
2013 09 06 11 46 32 375 Fda Logo 200
MRI
DTI-MRI shows brain changes in temporal lobe epilepsy patients
Diffusion-tensor MRI (DTI-MRI) has shown widespread, abnormal connections in the brains of patients with temporal lobe epilepsy, which could help with diagnosis and treatment, according to a new study published online November 19 in Radiology.
November 19, 2013
2013 11 19 16 45 27 79 Tle Brain Connectivity Rad Da Salvo 450 20131119234908
MRI
Breast MRI use grows, but does it benefit the right women?
Overall use of breast MRI has increased over the past decade, but there are concerns that the modality is overused in women who don't meet screening guidelines, while being underused in those who could benefit the most, according to two studies published online November 18 in JAMA Internal Medicine.
November 18, 2013
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Rads show 28-fold variation for head and neck imaging recommendations
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Low-dose PEM shows promise in breast cancer detection
By Amerigo Allegretto
Low-dose positron emission mammography (PEM) can detect invasive breast cancer in a feasible manner.
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Images obtained in a 50-year-old female patient with a new biopsy-proven malignant lesion in the left breast. (A) Craniocaudal mammogram of the right breast does not show any lesion. (B) The malignant lesion corresponds with a 7-cm irregular and spiculated mass on the left craniocaudal mammogram. Ultrasound-guided core-needle biopsy revealed grade 2 invasive lobular carcinoma. (C) The bilateral positron emission mammographic craniocaudal color image obtained one hour after intravenous injection of 185 MBq of F-18-labeled fluorodeoxyglucose (F-18 FDG) shows a mass with intense uptake in the left breast with known cancer and no abnormal uptake in the right breast. Positron emission mammographic craniocaudal images of the left breast obtained (D) one hour and (E) four hours after intravenous injection of 185 MBq of F-18 FDG show no substantial visual difference in uptake of the known cancer. (F) Axial contrast-enhanced fat-saturated subtracted T1-weighted MR image with maximum intensity projection reconstruction obtained 90 seconds after intravenous injection of 0.1 mmol of gadolinium-based contrast material per kilogram of body weight also shows the enhancing mass corresponding to known malignancy (arrow) and marked bilateral background parenchymal enhancement, with multiple nonspecific foci of enhancement in the contralateral breast. The patient opted for bilateral mastectomy, which confirmed left-sided malignancy and no malignancy in the contralateral breast. Image courtesy of the RSNA,
EVT valuable in patients requiring transit to stroke centers
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PET reveals brain’s energy demands during walking
By Will Morton
A group in England has established PET imaging as a new approach for studying gait – an excellent indicator of physical, emotional, and mental health.
February 9, 2024
Data analysis validation. Panel A: Image and line profile through the bottle on scans 1 (top) and 2 (middle), and the difference image (bottom) calculated according to Equation 3. Panel B: Data from a representative participant showing the effect of the dose correction on the PETWALK image using Equation 1 when applied to co-registered images in native subject space. The images were then warped to standard Montreal Neurological Institute (MNI) space Top: PETSTAND, middle – uncorrected PETWALK, bottom – corrected PETWALK. The color bar shows image intensity across the three images. Image courtesy of NeuroImage.
AI boosts CTPA's ability to predict lung disease survival
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The percentage of lung fibrosis quantified on CT pulmonary angiograms (CTPA) by an AI model is associated with increased risk of mortality.
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Music calms patients undergoing imaging procedures
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Music can be calming for patients undergoing medical imaging.
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Can new image processing methods deliver reproducible radiomics?
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A multinational team of researchers has developed standardized image processing techniques that show promise for significantly improving the reproducibility of AI-based radiomics analysis.
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EVT improves outcomes in stroke patients
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Researcher speaks on MyChart Mobile tool with AuntMinnie.com
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Seetharam Chadalavada, MD, from the University of Cincinnati speaks with AuntMinnie.com on how a human-centered design framework led to the tool's creation.
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