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Ferumoxytol-enhanced MRA is safe for chronic kidney disease patients
By Kate Madden Yee
Ferumoxytol-enhanced MR angiography (MRA) appears to be safe for chronic kidney disease patients, researchers have reported.
January 29, 2025
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Ultrafast MRI exam bests standard MRI for classifying breast cancers
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An ultrafast MRI-based radiomics exam performs just as well as standard MRI and isn’t dependent on radiologist experience.
January 28, 2025
Ultrafast and standard MRI in a 30-year-old woman with triple-negative invasive ductal carcinoma. (A) Ultrafast MRI taken 16.8 seconds after contrast agent injection. (B) Standard MRI taken 58.8 seconds after contrast agent injection. Both images show an oval-shaped, irregular marginated, rim-enhancing mass in the left outer breast. For 3D tumor segmentation, the entire enhanced tumor margins were drawn from top to bottom of each tumor in axial views of U2 phase postcontrast ultrafast MRI and the initial phase postcontrast standard MRI. Among the 14 ultrafast images, U1 is the first phase in which the signal intensity of the hotspot region of interest of the tumor is 10% higher than the average signal intensity of unenhanced images. U2 is the immediate next phase of U1 and the well-established tumor enhancement time.
63% of heavy cannabis users show reduced working memory ability
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Functional MRI reveals that 63% of heavy lifetime cannabis users show reduced brain activity during a working memory task -- and that 68% of recent users also show this impact.
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Brain MRI tracks risk of stage IV breast cancer metastases
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Brain MRI shows promise for surveilling women at risk for asymptomatic stage IV breast cancer metastases by tracking molecular subtypes of the disease.
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MR spectroscopy reveals neurochemical patterns linked to COVID-19
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Proton MR spectroscopy (MRS) reveals "remarkable" neurochemical patterns associated with COVID-19-induced anosmia, or loss of smell.
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Simulated contrast-enhanced MRI helps assess prostate cancer
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Simulated contrast-enhanced MR images from noncontrast sequences using deep learning show promise for assessing clinically significant prostate cancer.
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Measuring myelin volume with synthetic MRI helps predict stroke outcomes
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Stroke patients with large total myelin volume measured on synthetic MR imaging appear to have good functional outcomes on follow-up.
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ML model using CCTA, MRI data predicts MACE in cardiac patients
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A machine-learning (ML) model that includes both CCTA and stress cardiac MRI data can accurately predict major adverse cardiovascular events (MACE).
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Genetic testing, risk assessment tied to more breast MRI uptake
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Women with high-risk pathological variants for breast cancer as identified by genetic testing and risk assessment are more likely to undergo breast MRI.
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Deep-learning model based on MRI data predicts prostate cancer risk
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A deep-learning model based on MRI and clinical parameters appears effective for predicting the risk of prostate cancer progression.
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Breast MRI surveillance reduces disease recurrence
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In women with a personal history of breast cancer, postoperative MRI surveillance appears to lower their odds of advanced second breast cancer.
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Women with BRCA1/2 germline mutations are often denied breast MRI
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Women with BRCA1/2 germline mutations are often denied breast MRI -- despite the fact that the exam is recommended for this population.
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