Duplex Sonography
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 ...
9
Diagnosis of Internal Carotid Artery Stenosis Greater than 70% with Power Doppler Duplex Sonography
... Between May 1, 1997, and October 30, 1998, 75 patients (66 men and nine women; mean age, 63 years; range, 34–78 years) with cerebrovascular disease underwent sonographic ex- amination with power Doppler imaging within 1 ...
5
The Role of the Occipital Artery in the Diagnosis of Intracranial Dural Arteriovenous Fistula Using Duplex Sonography
... using duplex sonogra- ...underwent duplex sonography for further ...without duplex sonography studies; there- fore, the possibility of patient selection bias can be ...
5
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, ...
7
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 ...
6
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 ...
7
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 ...
11
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 ...
8
<p>Decreased Vascular Pulsatility in Alzheimer’s Disease Dementia Measured by Transcranial Color-Coded Duplex Sonography</p>
... Participants were excluded if they were incapable to provide written informed consent, had severe disturbances in regular heart rate (eg, atrial fi brillation), hemodynamic relevant extracranial stenosis on extra cranial ...
13
Colour duplex sonography of temporal arteries before decision for biopsy: a prospective study in 55 patients with suspected giant cell arteritis
... Schmidt and colleagues were the first to propose ultrasonog- raphy as a quick, easy, and non-invasive test for identifying GCA, before biopsy [9-11]. These studies suggested that the presence of the halo sign (that is, a ...
8
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 ...
7
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 ...
7
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 ...
9
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 ...
5
Preoperative Evaluation of Carotid Artery Stenosis: Comparison of Contrast Enhanced MR Angiography and Duplex Sonography with Digital Subtraction Angiography
... of duplex sonography, with DSA as the reference standard; 3) correlation of MR angiography with DSA; 4) correlation of sonography with ...of sonography with DSA and MR angiography with DSA, ...
6
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] ...
5
Transcranial Duplex Sonography Predicts Outcome following an Intracerebral Hemorrhage
... Transcranial duplex sonography examinations were performed within 2 hours of baseline CT, and we recorded the following variables: hematoma volume, midline shift, third ventricle and lateral ventricle ...
7
Metastatic Adenopathy from Nasopharyngeal Carcinoma: Successful Response to Radiation Therapy Assessed by Color Duplex Sonography
... used. The settings were standardized for the initial and all sub- sequent sonograms for each selected node. Qualitatively, the vessel distribution was classified as central, peripheral, or pe- ripheral and central. ...
6
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] ...
6
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] ...
6