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Brie fly, from an MRI safety perspective, the main con-cerns stem from: 1) the static magnetic field, which can con-tribute to projectile effects; 2) the gradient field, which can cause current induction; and 3) the radiofrequency (RF) field, which can result in device heating. All three contribute to spe-ci fic absorption rate (SAR).
Among the most successful of such networks are convolutional neu-ral networks (CNNs), which are applied to medical images. Successful applications of CNNs include the detection, segmen-tation, and quantification of pathologic conditions (2). These tasks require discriminative models that can distinguish among different
22). Among these techniques, MR elastography is the most accurate noninvasive imaging examina-tion available for the identification and staging of liver fibrosis (23–25). It is a robust technique, with liver iron overload, its main limitation, poten-tially resulting in nondiagnostic studies (25,26). With MR elastography, as compared to any
Adults. In clinical trials with MultiHance, a total of 4967 adult subjects (137 healthy volunteers and 4830 patients) received MultiHance at doses ranging from 0.005 to 0.4 mmol/kg. There were 2838 (57%) men and 2129 (43%) women with a mean age of 56.5 years (range 18 to 93 years).
• The risk for NSF appears highest among patients with: o. Chronic, severe kidney disease (GFR < 30 mL/min/1.73 m. 2), or . o. Acute kidney injury. • Screen patients for acute kidney injury and other conditions that may reduce renal function. For patients at risk for chronically reduced renal function (e.g. age > 60 years,
sion, among others ( 1 ). NAFLD affects an estimated 30% of the U.S. popula-tion, including 75% of obese adults ( 2 ) and up to 10% of children ( 3–5 ). NAFLD encompasses a spectrum of liver diseases that include isolated steatosis, nonalco-holic steatohepatitis, and cirrhosis. It has been demonstrated that NAFLD is
2.1 Dosing and Imaging Instructions. 2.1.1 MRI of the CNS The recommended dose of MultiHance for MRI of the CNS is. 0.1 mmol/kg (0.2 mL/kg) administered as a rapid bolus intravenous injection. To ensure complete injection of the contrast medium, follow the injection with a saline flush of at least 5 mL.
ISSN 0265–6736 print/ISSN 1464–5157 online 2011 Informa UK Ltd. DOI: 10.3109/02656736.2011.553769. influenced by ambient conditions (e.g. temperature, humidity), circadian rhythm, exercise, food intake, menstrual variation, emotional state, the effects of drugs and alcohol, and other factors [4]. Individual susceptibility to elevated ...
The maximum strength of a permanent magnet is independent of its saturation point. Option d) is false. The saturation point limits the maximum attainable strength of a permanent magnet or iron core electromagnet, which in most cases is well below 2 Tesla. Answers a)-c) are true Link to Q&A discussion.
measures was found. Among DCE-derived parameters, v p and v e had the highest accuracy (are under the receiver operating characteristic curve [A z] = 0.847 and 0.853) for glioma grading. DSC-derived rCBV had the highest accuracy (A z = 0.894), but the difference was not statis-tically significant (P. .05). Among lower-grade gliomas,