Relationship Between Apparent Diffusion Coefficient and Subsequent Hemorrhagic Transformation Following Acute Ischemic Stroke
نویسندگان
چکیده
منابع مشابه
Relationship between apparent diffusion coefficient and subsequent hemorrhagic transformation following acute ischemic stroke.
BACKGROUND AND PURPOSE A method for identifying patients at increased risk for developing secondary hemorrhagic transformation (HT) after acute ischemic stroke could be of significant value, particularly in patients being considered for thrombolytic therapy. We hypothesized that diffusion-weighted MRI might aid in the identification of such patients. METHODS We retrospectively analyzed 17 pat...
متن کاملPredicting Hemorrhagic Transformation of Acute Ischemic Stroke
Hemorrhagic transformation (HT) increases the morbidity and mortality of ischemic stroke. Anticoagulation is often indicated in patients with atrial fibrillation, low ejection fraction, or mechanical valves who are hospitalized with acute stroke, but increases the risk of HT. Risk quantification would be useful. Prior studies have investigated risk of systemic hemorrhage in anticoagulated patie...
متن کاملRegional very low cerebral blood volume predicts hemorrhagic transformation better than diffusion-weighted imaging volume and thresholded apparent diffusion coefficient in acute ischemic stroke.
BACKGROUND AND PURPOSE Currently, diffusion-weighted imaging (DWI) lesion volume is the most useful magnetic resonance imaging predictor of hemorrhagic transformation (HT). Preliminary studies have suggested that very low cerebral blood volume (VLCBV) predicts HT. We compared HT prediction by VLCBV and DWI using data from the EPITHET study. METHODS Normal-percentile CBV values were calculated...
متن کاملAssociation of early CT abnormalities, infarct size, and apparent diffusion coefficient reduction in acute ischemic stroke.
BACKGROUND AND PURPOSE Diffusion-weighted (DW) imaging is more sensitive for early ischemia than CT, and apparent diffusion coefficient (ADC) mapping permits quantification of the severity of cytotoxic edema. We examined the relationship between early CT findings, ischemic lesion volume on DW images, and edema subtype. METHODS Patients in whom early signs of ischemia were detected on baseline...
متن کاملCorrelation of apparent diffusion coefficient and computed tomography density in acute ischemic stroke.
BACKGROUND AND PURPOSE Diffusion-weighted MR imaging is very sensitive for the detection of restricted molecular water diffusion in acute ischemic stroke. CT is sensitive to net water uptake in ischemic edema. We compared the decrease in the apparent diffusion coefficient (ADC) in diffusion-weighted MR imaging with CT density changes to study the correlation between diffusion restriction and wa...
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ژورنال
عنوان ژورنال: Stroke
سال: 2000
ISSN: 0039-2499,1524-4628
DOI: 10.1161/01.str.31.10.2378