Cerebral Blood Flow Is the Optimal CT Perfusion Parameter for Assessing Infarct Core
نویسندگان
چکیده
منابع مشابه
Cerebral blood flow is the optimal CT perfusion parameter for assessing infarct core.
BACKGROUND AND PURPOSE CT perfusion (CTP) is widely and rapidly accessible for imaging acute ischemic stroke but has limited validation. Cerebral blood volume (CBV) has been proposed as the best predictor of infarct core. We tested CBV against other common CTP parameters using contemporaneous diffusion MRI. METHODS Patients with acute ischemic stroke<6 hours after onset had CTP and diffusion ...
متن کاملOptimal technique aids cerebral perfusion CT
Thrombolytic therapy can restore normal blood flow in obstructed vessels following stroke, but treatment must be administered rapidly after onset of symptoms. Efforts have therefore been made to select and study which patients may benefit from this approach. A patient with suspected ischemic stroke first undergoes a basal unenhanced brain CT to evaluate the possible presence of hemorrhagic stro...
متن کاملCerebral CT perfusion using an interventional C-arm imaging system: cerebral blood flow measurements.
BACKGROUND AND PURPOSE CTP imaging in the interventional suite could reduce delays to the start of image-guided interventions and help determine the treatment progress and end point. However, C-arms rotate slower than clinical CT scanners, making CTP challenging. We developed a cerebral CTP protocol for C-arm CBCT and evaluated it in an animal study. MATERIALS AND METHODS Five anesthetized sw...
متن کاملCT cerebral blood flow maps optimally correlate with admission diffusion-weighted imaging in acute stroke but thresholds vary by postprocessing platform.
BACKGROUND AND PURPOSE Admission infarct core lesion size is an important determinant of management and outcome in acute (<9 hours) stroke. Our purposes were to: (1) determine the optimal CT perfusion parameter to define infarct core using various postprocessing platforms; and (2) establish the degree of variability in threshold values between these different platforms. METHODS We evaluated 4...
متن کاملXenon enhanced CT for analysis of cerebral integrity, perfusion, and blood flow.
Enhancement of the brain substance for CT evaluation using inhaled Xenon is confirmed. This technique was applied to the study of the normal and the embolized adolescent baboon. Healthy cerebral tissue enhances symmetrically, while abnormal areas show significantly diminished enhancement. At maximal enhancement, an indication of gross comparative cerebral perfusion to obtained. By obtaining ser...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Stroke
سال: 2011
ISSN: 0039-2499,1524-4628
DOI: 10.1161/strokeaha.111.618355