Duplex Sonography (DS)
Common carotid artery occlusion: evaluation with duplex sonography
... of duplex ultrasonography has fur- ther advanced our ability to define the carotid anatomy more accurately (13, ...14). Duplex ul- trasonography provides good B-mode imaging of the morphology of the ...
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Transcranial color coded duplex sonography in the evaluation of collateral flow through the circle of Willis
... We prospectively studied 132 patients (37 women, 95 men; mean age 6 SD, 60 6 15 years) who had a total of 93 stenoses with more than 69% reduction in vessel diam- eter and 52 occlusions of the internal carotid arteries ...
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The Role of the Occipital Artery in the Diagnosis of Intracranial Dural Arteriovenous Fistula Using Duplex Sonography
... The duplex sonography studies were performed with an HP 4500 system (Hewlett-Packard Company, Palo Alto, California) con- taining a 3- to 11-MHz real-time B-mode imaging transducer and a ...a ...
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Transcranial Color Coded Duplex Sonography for Detection of Distal Internal Carotid Artery Stenosis
... For comparisons, we also analyzed data obtained in 128 control volunteers with no known cerebrovascular disease of white descent (54 women and 74 men; mean age, 48.8 ⫾ 15.9 years; range, 19 –78 years) at both clinics, ...
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Transtemporal power and frequency based color coded duplex sonography of cerebral veins and sinuses
... color-coded duplex sonography to aid in the assessment of cerebral veins and sinuses, as well as to provide reference data for flow direction and ...color duplex device equipped with a ...color-coded ...
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Echo Enhanced Transcranial Color Coded Duplex Sonography in the Diagnosis of Cerebrovascular Events: A Validation Study
... phers performing this study used the eTCCD examinations exclusively for evaluating the vertebrobasilar vessel status. Ad- ditional knowledge of the hemodynamics in the extracranial vertebral arteries assessed by ...
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Comparison of Transcranial Color Coded Duplex Sonography and Cranial CT Measurements for Determining Third Ventricle Midline Shift in Space Occupying Stroke
... color-coded duplex sonography (TCCS) al- lows the noninvasive, easily reproducible measurement of midline dislocation (MLD) of the third ventricle in space-occupying stroke, even in critically ill ...
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Diagnosis of Internal Carotid Artery Stenosis Greater than 70% with Power Doppler Duplex Sonography
... Duplex sonography was performed by an experienced cli- nician using an ATL Ultramark 9 HDI (Advanced Technology Laboratories, Bothell, WA) unit with a linear-array pulsed wave transducer operating at ...
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Transcranial color coded duplex sonography in unilateral flow restrictive extracranial carotid artery disease
... color-coded duplex flow-velocity data for the basal cerebral arteries in patients with unilateral flow-restrictive extracranial carotid artery disease, and to com- pare these data with the flow velocities obtained ...
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The predictive value of transcranial duplex sonography for the clinical diagnosis in undiagnosed parkinsonian syndromes: comparison with SPECT scans
... Becker and colleagues were first to report hyperechointen- sity of the substantia nigra (SN) in patients with IPD by using transcranial duplex sonography (TCD) [9]. Several studies found that this increased ...
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Body temperature affects cerebral hemodynamics in acutely brain injured patients: an observational transcranial color coded duplex sonography study
... Methods: We enrolled 26 patients, 14 with acute brain injury who developed fever and were given antipyretic therapy (defervescence group) and 12 who underwent an intracranial neurosurgical procedure and developed ...
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Role of Color Assisted Duplex Sonography in Evaluation of Thyroid Diseases
... Methods: In this prospective study of 40 patients, with clinical thyroid diseases, color assisted duplex sonography was performed, later they underwent ultrasound guided fine needle biopsy of the lesions ...
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Preoperative Evaluation of Carotid Artery Stenosis: Comparison of Contrast Enhanced MR Angiography and Duplex Sonography with Digital Subtraction Angiography
... confirms duplex sonography and contrast-enhanced MR angiography to be effective noninvasive methods for the evaluation of carotid artery stenosis before carotid ...when duplex sonography and ...
6
Transcranial Duplex Sonography Predicts Outcome following an Intracerebral Hemorrhage
... transcranial duplex sonography and CT when measuring hematoma volume (r ⫽ ...transcranial duplex sonography measurements showed that hematoma volume was an independent predictor of early ...
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Carotid Duplex Sonography in the Follow Up of Intracranial Dural Arteriovenous Fistulae
... TABLE 2: Results of carotid duplex sonography before and after embolization of dural AVF Group Occluded n ⫽ 7 RI EDV cm/s PSV cm/s Flow mL/min Partial treatment n ⫽ 6 RI EDV cm/s PSV cm/[r] ...
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Duplex sonography for carotid artery disease: an accurate technique
... In a focal stenosis of moderate grade grade 2, Doppler sampling will show: 1 some turbulence just proximal to the ste nosis; 2 focal area of easi ly identified velocity increase that dro[r] ...
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Intravenous DSA and duplex sonography as screening examinations for carotid disease: comparison in 102 vessels
... Sonography: High bifurcation of the common carotid artery and/or thick neck Poorly shown lumen due to calcification or soft plaque Poorly shown lumen on B-mode but adequate Doppler signa[r] ...
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Metastatic Adenopathy from Nasopharyngeal Carcinoma: Successful Response to Radiation Therapy Assessed by Color Duplex Sonography
... color duplex Doppler sonography has been available for some time, it is only recently becoming a routine part of nodal evaluation, and its usefulness in post-RT cases is not yet well doc- ...Doppler ...
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A prospective comparison of duplex sonography vs angiography of the vertebral arteries
... Thirty-two vertebral arteries were studied for direction of flow, degree of origin plaque or stenosis, Doppler characteristics, and vessel size.. The vertebral arteries were rel iably id[r] ...
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Noninvasive screening of extracranial carotid disease: duplex sonography with angiographic correlation
... We depended primari ly on analysis of the audible Doppler frequency shifts to establish the degree of stenosis , using th e B-scan images principally to guide in prec ise placement of th[r] ...
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