<p>Decreased Vascular Pulsatility in Alzheimer’s Disease Dementia Measured by Transcranial Color-Coded Duplex Sonography</p>
نویسندگان
چکیده
منابع مشابه
Transcranial color-coded duplex sonography of intracerebral hematomas in adults.
BACKGROUND AND PURPOSE It is well established from pediatric experience and animal experiments that intracerebral blood can be demonstrated by B-mode real-time duplex scanning. This has recently become feasible in adults as well. The present study investigated the changes in the sonographic appearance of intracerebral hematomas over the course of time. METHODS Starting in May 1991, 23 consecu...
متن کاملTranscranial color-coded duplex sonography in cerebral aneurysms.
BACKGROUND AND PURPOSE Diagnosis and successful therapy before rupture of cerebral aneurysms would be most desirable in view of the high mortality and morbidity rates of aneurysmal subarachnoid hemorrhage. Using transcranial color-coded duplex sonography, we studied radiologically proven cerebral aneurysms to define ultrasonographic criteria and sensitivity for their diagnosis and detection. ...
متن کاملFrontal bone windows for transcranial color-coded duplex sonography.
BACKGROUND AND PURPOSE The use of the conventional temporal bone window for transcranial color-coded duplex sonography (TCCS) often results in difficulties in obtaining angle-corrected flow velocity measurements of the A2 segment of the anterior cerebral artery, the posterior communicating artery, and the midline venous vasculature because of the unfavorable insonation angle. The same applies t...
متن کاملVertebrobasilar transcranial color-coded duplex ultrasonography: improvement with echo enhancement.
BACKGROUND AND PURPOSE The diagnostic yield of vertebrobasilar transcranial color-coded duplex ultrasonography (US) is often hampered by insufficient acoustic penetration, anatomic variations, and vessel tortousity. The purpose of this study was to evaluate the effect of echo enhancement on vertebrobasilar transcranial color-coded duplex US. METHODS In 23 consecutive patients (mean age, 61.0 ...
متن کاملTranscranial color-coded duplex sonography in unilateral flow-restrictive extracranial carotid artery disease.
PURPOSE To provide transcranial color-coded duplex flow-velocity data for the basal cerebral arteries in patients with unilateral flow-restrictive extracranial carotid artery disease, and to compare these data with the flow velocities obtained in healthy control subjects. METHODS Transcranial color-coded duplex sonography was performed in 78 patients with different patterns of cross flow thro...
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: Neuropsychiatric Disease and Treatment
سال: 2019
ISSN: 1178-2021
DOI: 10.2147/ndt.s225754