TRANSCRANIAL DOPPLER SONOGRAPHY
Angle Corrected Imaging Transcranial Doppler Sonography versus Imaging and Nonimaging Transcranial Doppler Sonography in Children with Sickle Cell Disease
... imaging transcranial Doppler sonography mean blood flow velocities obtained with automatic and manual tracings in major cerebral arteries of children with sickle cell ...
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Case Report Using of transcranial Doppler sonography to guide triple-H therapy in cerebral vasospasm associated with subarachnoid hemorrhage
... with transcranial Doppler sonography (TCD) has provided a way of early detecting vasospasm after SAH as soon as possible and could guide the timing of triple-H ...
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Assessment of Blood Flow Velocity and Diameter of the Middle Cerebral Artery during the Acetazolamide Provocation Test by Use of Transcranial Doppler Sonography and MR Imaging
... The assessment of cerebral VMR is a widely used test for evaluation of the cerebral hemody- namic situation in patients with extracranial occlu- sive carotid artery disease. Two methods, the CO 2 challenge and the ...
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Transcranial doppler sonography is not a valid diagnostic tool for detection of basilar artery stenosis or in-stent restenosis: a retrospective diagnostic study
... and Doppler ultrasound have a high sensitivity and specificity in the diagnosis of carotid artery stenosis [4, 5] – making non- invasive and low risk diagnostic tools available for the an- terior ...experience ...
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Near Infrared Spectroscopy and Transcranial Doppler Sonography for the estimation of Cerebral Autoregulation after Intra Arterial Thrombectomy for Ischemic Stroke
... The clinically best established CA measurement technique is the combination of Transcranial Doppler sonography (TCD) and continuous systemic BP measurements.[13] To address the challenges described ...
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Changes in blood flow velocity and diameter of the middle cerebral artery during hyperventilation: assessment with MR and transcranial Doppler sonography
... with Doppler sonographic results (8, ...and transcranial Dopp- ler sonography, both obtained under normal cir- cumstances and physiological ...by transcranial Doppler sonography ...
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Ischemia after Carotid Endarterectomy: Comparison between Transcranial Doppler Sonography and Diffusion Weighted MR Imaging
... which transcranial Doppler sonography (TCD) was used intraoperatively to detect mi- croembolic signals have revealed a high prevalence of such signals but a low rate of perioperative ...
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Association between two distinct executive tasks in schizophrenia: a functional transcranial Doppler sonography study
... Functional transcranial Doppler sonography (fTCD) has been shown to detect specific alterations in MFV during the WCST [10,12,13], the Tower of Hanoi (TOH) [12] and the SOC ...
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Investigation of ischemic and demyelinating lesions by cerebral vasoreactivity based on transcranial Doppler sonography: a comparative study
... group. Transcranial Doppler sonography was undertaken in all subjects to calculate the mean flow velocity (MFV) of the right middle cerebral artery (MCA) and, after a breath-holding (BH) maneuver, ...
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Role of Transcranial Doppler Sonography in Diagnosis of Brain Death: A Single Center Study
... Background: Diagnosis of brain death relies on clinical and electroencephalographic (EEG) criteria. Waiting for 24 hours is mandatory to make definitive diagnosis of the condition in the Iranian protocol. Although it has ...
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Importance of Angle Correction in the Measurement of Blood Flow Velocity with Transcranial Doppler Sonography
... Intracranial structures cannot be imaged with conventional TCD sonography, and consequently, the angle of insonation cannot be measured. Thus, the sonographer cannot verify whether the assump- tion of a narrow ...
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Cerebral Arteriovenous Malformations: Diagnostic Value of Echo Enhanced Transcranial Doppler Sonography Compared with Angiography
... color-coded Doppler method of choice in the evaluation of vascular malformations, since it is more sensitive than conventional color Doppler son- ography, does not alias, and can depict vessels continuously ...
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The Effect of Contrast Material on Transcranial Doppler Evaluation of Normal Middle Cerebral Artery Peak Systolic Velocity
... Transcranial Doppler sonography is a noninvasive, portable method for evaluating intracranial hemo- ...Similarly, transcranial Doppler sonog- raphy may also be used to evaluate other ...
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Fulminant listerial infection of the central nervous system in an otherwise healthy patient: a case report
... Typically, it is a biphasic illness with neurologic signs appearing 4 to 5 days after the onset of fever. Mortality exceeds 26%, and serious sequelae are common in survivors [1]. We present a case of listerial CNS ...
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Clinical Reasoning: A 42-year-old man with severe headache, fever, and acute coma
... Transcranial Doppler sonography was used to moni- tor the blood flow, showing no flow signal in either ACA and significant dampening of MCA flow, indicative of an arterial steno-occlusive ...
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Cerebral Fat Embolism Syndrome from Penetrating Trauma: A Rare Cause and Effect
... Ohbayashi, “Cerebral Fat Embolism Studied by Magnetic Resonance Imaging, Transcranial Doppler Sonography, and Single Photon Emission Computed Tomography: Case Report,” Journal of Trauma,[r] ...
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Higher BMI is associated with reduced brain volume in heart failure
... underwent transcranial Doppler sonography to quantify cerebral blood flow velocity of the middle cerebral artery (CBF-V of the MCA) and brain magnetic resonance imaging (MRI) to quantify total brain, ...
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Age and Sex Variability and Normal Reference Values for the VMCA/VICA Index
... of transcranial Doppler sonography (TCD) to detect elevated blood flow velocities as- sociated with narrowing of an intracranial artery has led to extensive application of TCD for the bedside ...
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Comparison of Gray-scale Sonography with Doppler Evaluation in Diagnosis of Varicocele
... referred to a private office. Consistency rate of clinical grading of varicocele sonography findings were reviewed. A sensitivity of 94.7% and specificity of 64.9% in sonography were compared to physical ...
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Immediate Evaluation of Angioplasty and Stenting Results in Supra Aortic Arteries by Use of a Doppler Tipped Guidewire
... duplex Doppler sonography for follow-up of carotid arteries may be less reliable after stent placement than before stent ...with Doppler signaling may reduce the accuracy of Dopp- ler ...
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