نتایج جستجو برای: transcranial doppler sonography tcd

تعداد نتایج: 64588  

Journal: :AJNR. American journal of neuroradiology 2005
Lisa H Lowe Frank P Morello Mary A Jackson Andrew Lasky

We describe the use of serial transcranial Doppler studies to evaluate neurovascular disease in three girls presenting with acute stroke due to primary cerebral vasculitis (n = 2) and West Nile vasculitis (n = 1). Correlation of abnormal findings on transcranial Doppler sonography was compared with those of MR angiography and conventional angiography in each child. All three girls had left midd...

2011
Sang Jin Jung Seong Keun Moon Tae Young Kim Ki Seong Eom

Occipital neuralgia is usually defined as paroxysmal stabbing pain in the greater or lesser occipital nerve (GON or LON) distribution. In occipital neuralgia patients, surgical considerations are carefully taken into account if medical management is ineffective. However, identification of the occipital artery by palpation in patients with thick necks or small occipital arteries can be technical...

Journal: :Journal of ultrasound in medicine : official journal of the American Institute of Ultrasound in Medicine 2010
Chung-Fen Tsai Chao-Ching Chen Shiao-Chen Wang Ping-Keung Yip

igraine is a common disorder in young women, but it is rarely associated with ischemic stroke. According to previous stroke registries, migrainous infarcts account for 0.5% to 1.5% of all ischemic strokes and about 10% to 14% of young ischemic strokes.1,2 The pathophysiologic mechanism of migrainous infarction is still unclear. Here we report a patient with a migraine history in whom acute cere...

Journal: :Stroke 1998
M Goertler R Kross M Baeumer S Jost R Grote S Weber C W Wallesch

BACKGROUND AND PURPOSE We sought to evaluate the diagnostic value of echo-enhanced transcranial color-coded duplex sonography (TCCD) and the clinical relevance of vascular pathology assessed by sonography for early clinical outcome in acute ischemic stroke. METHODS We present 23 consecutive patients with an anterior circulation stroke in whom clinical examination, CT, and ultrasonography were...

2015
Author

Usefulness of transcranial Doppler-derived cerebral hemodynamic parameters in the noninvasive assessment of intracranial pressure. Author Wakerley BR1, Kusuma Y, Yeo LL, Liang S, Kumar K, Sharma AK, Sharma VK. Content/Summary Abstract BACKGROUND: Transcranial Doppler (TCD) ultrasonography is a noninvasive bedside tool that can evaluate cerebral blood flow hemodynamics in major intracranial arte...

2016
Zhanqiang Wang Yingxiao Cao Li Xu Li Zhou Jing Shi Haixia Wang Weiming Sun Jianzhong Zhu Bin Yang Jie Huang

Objective: Vertebral and basilar artery stenosis is one of the main reasons causing posterior circulation ischemia. In this study, we evaluated the effectiveness of Brain Electrical Activity Mapping (BEAM) and Transcranial Doppler (TCD) in assessing the functional improvement of the vertebral basilar artery stenosis after endovascular stenting. Methods: Forty patients with vertebral and basilar...

Journal: :Neurology 2007
E Feldmann J L Wilterdink A Kosinski M Lynn M I Chimowitz J Sarafin H H Smith F Nichols J Rogg H J Cloft L Wechsler J Saver S R Levine C Tegeler R Adams M Sloan

BACKGROUND Transcranial Doppler ultrasound (TCD) and magnetic resonance angiography (MRA) can identify intracranial atherosclerosis but have not been rigorously validated against the gold standard, catheter angiography. The WASID trial (Warfarin Aspirin Symptomatic Intracranial Disease) required performance of angiography to verify the presence of intracranial stenosis, allowing for prospective...

Journal: :Advances in experimental medicine and biology 2010
Noriaki Yokose Kaoru Sakatani Yoshihiro Murata Takashi Awano Takahiro Igarashi Sin Nakamura Tatsuya Hoshino Tsuneo Kano Atsuo Yoshino Yoichi Katayama Etsuko Ohmae Toshihiko Suzuki Motoki Oda Yutaka Yamashita

We examined the usefulness of near infrared time-resolved spectroscopy (TRS) for detection of vasospasm in subarachnoid hemorrhage (SAH). We investigated seven aneurysmal SAH patients with poor clinical conditions (WFNS grade V) who underwent endovascular coil embolization. Employing TRS, we measured the oxygen saturation (SO(2)) and baseline hemoglobin concentrations in the cortices. Measureme...

Journal: :Journal of neuroimaging : official journal of the American Society of Neuroimaging 2008
Roman Herzig Petr Hlustík David Skoloudík Daniel Sanák Ivanka Vlachová Miroslav Herman Petr Kanovský

BACKGROUND AND PURPOSE Several methods are being used to assess cerebral vasomotor reactivity (CVR), including transcranial Doppler (TCD) sonography and blood oxygenation level-dependent functional magnetic resonance imaging (fMRI). The aim was to assess the correlation of TCD and fMRI in the CVR assessment. METHODS Study group consisted of 28 patients (24 males, 4 females; aged 30-82, mean 6...

Journal: :Journal of ultrasound in medicine : official journal of the American Institute of Ultrasound in Medicine 1998
T Postert J Federlein H Przuntek T Büttner

Power-based transcranial color-coded sonography and contrast-enhanced transcranial color-coded sonography are ultrasonographic techniques that allow improved visualization of vascular structures. The present study was designed to investigate and compare the diagnostic capacity and applicability of both methods in the assessment of intracranial vessels of the circle of Willis (33 patients) and t...

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