Results 51 to 60 of about 361,059 (278)

Apparent Diffusion Coefficient Characteristics of Various Adrenal Tumors

open access: yesMagnetic Resonance in Medical Sciences, 2014
Using pathologically proven tumors and 3 methods of apparent diffusion coefficient (ADC) measurement, we examined the potential of diffusion-weighted imaging (DWI) to differentiate adrenal tumors.We evaluated adrenal tumors of 52 patients who underwent magnetic resonance (MR) examination including DWI and adrenal resection or biopsy between July 2006 ...
Tomoyuki, Hida   +12 more
openaire   +3 more sources

BOLD signal compartmentalization based on the apparent diffusion coefficient [PDF]

open access: yesMagnetic Resonance Imaging, 2002
Functional MRI (fMRI) can detect blood oxygenation level dependent (BOLD) hemodynamic responses secondary to neuronal activity. The most commonly used method for detecting fMRI signals is the gradient-echo echo-planar imaging (EPI) technique because of its sensitivity and speed.
Song, Allen W   +2 more
openaire   +2 more sources

Fibrinogen Changes Before and After Intravenous Thrombolysis as Predictors of Cerebral Injury and Clinical Outcomes in Acute Ischemic Stroke: A Multicenter Prospective Cohort Study

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Plasma fibrinogen is essential in thrombosis and fibrinolysis, yet its dynamic changes pre‐ and post‐intravenous thrombolysis (IVT) for predicting brain injury severity and prognosis in acute ischemic stroke (AIS) patients remain unclear.
Wenhai Zhai   +28 more
wiley   +1 more source

How to Discriminate Lung Cancer From Benign Pulmonary Nodules and Masses? Usefulness of Diffusion-Weighted Magnetic Resonance Imaging With Apparent Diffusion Coefficient and Inside/Wall Apparent Diffusion Coefficient Ratio

open access: yesClinical Medicine Insights: Oncology, 2021
Background: Although diffusion-weighted imaging (DWI) is useful for differential diagnosis between lung cancers and benign pulmonary nodules and masses (BPNMs), it is difficult to differentiate pulmonary abscesses from lung cancers because pulmonary ...
Katsuo Usuda   +8 more
doaj   +1 more source

Protein Mobility in the Cytoplasm of Escherichia coli [PDF]

open access: yes, 1999
The rate of protein diffusion in bacterial cytoplasm may constrain a variety of cellular functions and limit the rates of many biochemical reactions in vivo. In this paper, we report noninvasive measurements of the apparent diffusion coefficient of green
Elowitz, Michael B.   +4 more
core   +2 more sources

Release of proteins via ion exchange from albumin-heparin microspheres [PDF]

open access: yes, 1992
Albumin-heparin and albumin microspheres were prepared as ion exchange gels for the controlled release of positively charged polypeptides and proteins.
Bae, You Han   +5 more
core   +3 more sources

Sodium ion apparent diffusion coefficient in living rat brain [PDF]

open access: yesMagnetic Resonance in Medicine, 2005
AbstractThe apparent diffusion coefficient (ADC) of Na+ was determined in live rat brain. The brain extracellular‐to‐intracellular Na+ content ratio is ∼8:2, which is the inverse of that for water in these spaces. Consequently, the ADC of Na+ is primarily affected by motion in the extracellular space, and Na+ can be viewed as a reporter molecule for ...
James A, Goodman   +4 more
openaire   +2 more sources

Post‐COVID Fatigue Is Associated With Reduced Cortical Thickness After Hospitalization

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Neuropsychiatric symptoms are among the most prevalent sequelae of COVID‐19, particularly among hospitalized patients. Recent research has identified volumetric brain changes associated with COVID‐19. However, it currently remains poorly understood how brain changes relate to post‐COVID fatigue and cognitive deficits.
Tim J. Hartung   +190 more
wiley   +1 more source

Evaluation of Correlation of Ki-67 Factor in Prostate Cancer with Apparent Diffusion Coefficient Index in Multi b-value Diffusion Magnetic Resonance Imaging

open access: yesمجله دانشکده پزشکی اصفهان, 2020
Background: Recent advances in molecular imaging of prostate cancer, including diffusion-weighted imaging, have led to improved cancer screening methods.
Mehdi Akbari   +4 more
doaj   +1 more source

Age‐Related Characteristics of SYT1‐Associated Neurodevelopmental Disorder

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objectives We describe the clinical manifestations and developmental abilities of individuals with SYT1‐associated neurodevelopmental disorder (Baker‐Gordon syndrome) from infancy to adulthood. We further describe the neuroradiological and electrophysiological characteristics of the condition at different ages, and explore the associations ...
Sam G. Norwitz   +3 more
wiley   +1 more source

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