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Also try: transcranial color duplex sonography, color duplex sonography, transcranial color-coded duplex-scan, color-coded duplex scan, transcranial color-coded duplex sonography,

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44 results of 15 texts with exact phrase : 'color duplex'.

1. NEUROSONOLOGY AND CEREBRAL HEMODYNAMICS, Vol. 1, 2005 , , ,

clinical application, neurology, transcranial color duplex sonography.
clinical application, neurology, transcranial color duplex sonography.
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Clinical application, neurology, transcranial color duplex sonography
Clinical application, neurology, transcranial color duplex sonography
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Clinical application, neurology, transcranial color duplex sonography
Clinical application, neurology, transcranial color duplex sonography
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2. NEUROSONOLOGY AND CEREBRAL HEMODYNAMICS, vol. 1, 2005, No. 2 , , ,

angiography, color duplex sonography, stenosis, vertebral artery
angiography, color duplex sonography, stenosis, vertebral artery
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3. NEUROSONOLOGY AND CEREBRAL HEMODYNAMICS, vol. 3, 2007, No. 2 , , ,

Color duplex sonography of carotid arteries was performed in 924 patients: 368 with RF for CVD, 126 with transient ischemic attacks (TIAs), 287 with chronic unilateral infarction (CUI) and 143 with multiple infarctions.
Color duplex sonography of carotid arteries was performed in 924 patients: 368 with RF for CVD, 126 with transient ischemic attacks (TIAs), 287 with chronic unilateral infarction (CUI) and 143 with multiple infarctions. The intima media tickness (IMT) of the common carotid (CCA) and the internal carotid (ICA) arteries was measured in B-mode and M-mode scanning. Nonmodifiable (age and
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4. NEUROSONOLOGY AND CEREBRAL HEMODYNAMICS, vol. 4, 2008, No. 1 , , ,

carotid endarterectomy, chronic arterial insufficiency of the limbs, color duplex,
carotid endarterectomy, chronic arterial insufficiency of the limbs, color duplex,
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to study the possibilities for application of ultrasound diagnostics – color duplex and transcranial Doppler sonography (TCD) in patients with asymptomatic and symptomatic carotid stenosis and multifocal arteriosclerosis (MFA) chronic arterial insufficiency of the limbs (CAIL) or ischemic condition of the heart (ICH), undergone to carotid endarterectomy (CEA).
to study the possibilities for application of ultrasound diagnostics – color duplex and transcranial Doppler sonography (TCD) in patients with asymptomatic and symptomatic carotid stenosis and multifocal arteriosclerosis (MFA) chronic arterial insufficiency of the limbs (CAIL) or ischemic condition of the heart (ICH), undergone to carotid endarterectomy (CEA).
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Using Color duplex sonogrpahy 1013 patients with peripheral arterial illness, ICH, transient ischemic attacks and cerebral ischemic stroke were screened for carotid pathology.
Using Color duplex sonogrpahy 1013 patients with peripheral arterial illness, ICH, transient ischemic attacks and cerebral ischemic stroke were screened for carotid pathology. In 205 patients a carotid stenosis of 60% and more was established for internal carotid artery (ICA). These patients were divided into three groups – patients with asymptomatic carotid stenosis (ACS), patients with symptomatic carotid stenosis (SCS) and patients with multifocal arteriosclerosis MFA – carotid
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Using color Duplex sonography and TCD a significant improvement of the regional and cerebral hemodynamics on the side of CEA was established.
Two hundred and five patients with critical carotid stenosis, proved by colour duplex sonography, underwent surgery. The average degree of ICA stenosis was 81%. Before the carotid surgery a slight reduction in the blood circulation on the side of stenosis was found in all patients’ groups. In 201 patients (98%) the CEA was successfully performed. The preoperative diagnosis was confirmed in 100% by the intraoperative finding. Using color Duplex sonography and TCD a significant improvement of the regional and cerebral hemodynamics on the side of CEA was established. In 4 patients (1.95%) a perioperative stroke was developed. The complications were associated with the removed unstable plaques of type I, the existence of a high degree ICA stenosis (> 90%), a recent cerebral stroke (less then 1 month prior to CEA), the presence of a counterlateral ICA thrombosis or existance of MFA. As a second step after the successful CEA in the patients with MFA a vascular reconstruction or aorto-coronary bypass was performed.
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Color duplex sonography and TCD are methods of choice for both the screening of carotid pathology and the preoperative and postoperative diagnostics in CEA.
Color duplex sonography and TCD are methods of choice for both the screening of carotid pathology and the preoperative and postoperative diagnostics in CEA. The CEA in patients with asymptomatic and symptomatic carotid stenosis and a concurrent MFA is an effective treatment method for removing the carotid pathology with a minimum percentage of vascular complications. Carotid stenoses exceeding 70% are indicative for CEA Stenosis more than 60% can be operated in the case of a concurrent counterlateral ICA thrombosis or the existance of MFA when the postoperative complications are below 3%.
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5. NEUROSONOLOGY AND CEREBRAL HEMODYNAMICS, vol. 4, 2008, No. 1 , , ,

cerebral infarctions, color duplex sonography, common carotid artery, risk factors,
cerebral infarctions, color duplex sonography, common carotid artery, risk factors,
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The blood flow velocities (BFV), the diameters (D) and the vessel wall intima-media thickness (IMT) in the common carotid arteries (CCA) were recorded with color duplex sonography.
The study was carried out in 16 patients with unilateral cerebral infarctions (UCI), 58 patients with risk factors (RF) for CVD and 25 healthy control subjects. The blood flow velocities (BFV), the diameters (D) and the vessel wall intima-media thickness (IMT) in the common carotid arteries (CCA) were recorded with color duplex sonography. Systolic (SBP) and diastolic (DBP) blood pressure were measured and mean blood pressure (MBP) was calculated by the formula of Wiggers. Whole blood viscosity (WBV) at the shear rate of 94.5 s-1 was measured on the day of the Doppler ultrasound examination with a rotational viscometer Contraves Low shear 30. Wall shear stress (WSS), the circumferential wall tension (T) and the tensile stress (
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6. NEUROSONOLOGY AND CEREBRAL HEMODYNAMICS, vol. 6, 2010, No. 2 , , ,

Ultrasonic characteristics of the calf muscle was assessed using multi-modal color-duplex sonography.
A 58-year-man from a Bulgarian family with autosomal dominant form of distal myopathy with voice and pharyngeal weakness, confirmed by geneticmolecular, electromyographic and histopathological examination was studied. Ultrasonic characteristics of the calf muscle was assessed using multi-modal color-duplex sonography. The results were compared with the myosonogram of a healthy man.
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7. NEUROSONOLOGY AND CEREBRAL HEMODYNAMICS, vol. 7, 2011, No. 1 , , ,

Color duplex-scanning of mobile thrombus in RICA with severe stenosis.
Color duplex-scanning of mobile thrombus in RICA with severe stenosis.
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Color-duplex scanning after endarterectomy of RICA (arrow marks the patch).
Color-duplex scanning after endarterectomy of RICA (arrow marks the patch).
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Color duplex sonography of carotid arteries was performed in 27 patients with OSAS (mean age 55.7±1.4 years) and 27 control subjects (mean age 56.1±1.4 years), with risk facktors (RF) for cerebrovascular diseases (CVD) but not OSAS.
Color duplex sonography of carotid arteries was performed in 27 patients with OSAS (mean age 55.7±1.4 years) and 27 control subjects (mean age 56.1±1.4 years), with risk facktors (RF) for cerebrovascular diseases (CVD) but not OSAS. The IMT of the common carotid arteries (CCA) was measured in B-mode at the far wall of both arteries. Furthermore, the presence of plaques and stenoses of the extracranial vessels was determined.
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Ultrasound methods (color duplex scanning and transcranial Doppler ultrasound) are increasingly applied for several reasons including the vascular hypothesis for AD, the importance of modifiable vascular factors for AD and vascular dementia, and the role of the decrease of cerebral perfusion with age for the development of cognitive deficit.
Ultrasound methods (color duplex scanning and transcranial Doppler ultrasound) are increasingly applied for several reasons including the vascular hypothesis for AD, the importance of modifiable vascular factors for AD and vascular dementia, and the role of the decrease of cerebral perfusion with age for the development of cognitive deficit. They are able to detect vascular pathology causing chronic hypoperfusion decades before the onset of cognitive impairment, and help together with echocardiography, to screen cognitively intact middle-aged persons and ones with mild memory complaints. The assessment of intima-media complex is of special interest [18, 20, 19, 21, 22, 28, 43, 57], as are the detection of microembolic signals, impaired vasomotor reactivity of the basal cerebral arteries, etc.
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8. NEUROSONOLOGY AND CEREBRAL HEMODYNAMICS, vol. 8, 2012, No. 1 , , ,

Sometimes, with color-duplex scanning and/or B-flow imaging cavity into the intramural thrombus is visualized, from where a weak flow with high pulsatility index is recorded [12].
Carotid stenoses caused by dissections are long and irregular in shape, have eccentric or flame type, after which the arterial lumen sharply recovered. Sometimes, with color-duplex scanning and/or B-flow imaging cavity into the intramural thrombus is visualized, from where a weak flow with high pulsatility index is recorded [12]. Doppler signal depends on the place of insonation, the type of dissection and the severity of obstruction [1].
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Ultrasound characteristics of the triceps surae muscle ware assessed by multi-color duplex sonography (Logic 7, GE Germany), equipped with a transducer for 4-dimensional imaging in real time.
Ultrasound characteristics of the triceps surae muscle ware assessed by multi-color duplex sonography (Logic 7, GE Germany), equipped with a transducer for 4-dimensional imaging in real time. Changes in triceps surae were measured in supine position of the patient at rest and during muscle contraction (spontaneous and provoked by electric stimulation of n. tibialis) following a standard protocol [2]. The transducer was placed perpendicularly to the muscle to avoid ehogenic artifacts. Qualitative and quantitative evaluation of myosonograms was performed by measuring the transverse diameter of the muscle two heads (medial and lateral) in longitudinal projection, the inclination of the muscle fibers to the surface of the aponeurosis and their architectonics in 4-D imaging at rest and muscle contraction. The results were compared with myosonograms of triceps surae in a healthy control and a patient with myopathy related to age and gender.
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9. NEUROSONOLOGY AND CEREBRAL HEMODYNAMICS, vol. 2, 2012, No. 2 , , ,

Ultrasound characteristics of the triceps surae muscle were assessed by multi-color duplex sonography (Logic 7, GE Germany), equipped with a transducer for 4-dimensional imaging in real time.
Ultrasound characteristics of the triceps surae muscle were assessed by multi-color duplex sonography (Logic 7, GE Germany), equipped with a transducer for 4-dimensional imaging in real time. Changes in both triceps surae muscles were measured in supine position of the patient at rest and during muscle contraction (spontaneous and induced by electric stimulation of n. tibialis) following a standard protocol [4]. The transducer was placed perpendicularly to the muscle to avoid echogenic artifacts. Qualitative and quantitative evaluation of myosonograms was performed by measuring the transverse diameter of the muscle’s two heads (lateral and medial) in longitudinal pro-
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10. NEUROSONOLOGY AND CEREBRAL HEMODYNAMICS, vol. 9, 2013, No. 2 , , ,

Cerebral Hemodynamic Assessment with Transcranial Color Duplex in Intracranial Hypertension Experimental Model.
Cerebral Hemodynamic Assessment with Transcranial Color Duplex in Intracranial Hypertension Experimental Model.
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The blood flow velocities (BFV), the internal diameters (D) and the vessel wall intima-media thickness (IMT) in the CCA were recorded by color duplex sonography.
Thirty two patients with CUCI, 58 patients with risk factors (RF) for cerebrovascular disease (CVD) and 25 controls were included in the study. The blood flow velocities (BFV), the internal diameters (D) and the vessel wall intima-media thickness (IMT) in the CCA were recorded by color duplex sonography. Systolic (SBP) and diastolic (DBP) blood pressure were measured and mean blood pressure (MBP) was calculated by the formula of Wiggers. Additional division of the patients in subgroups with MBP < 100 and ≥ 100 was performed. The blood flow velocities (BFV), the internal diameters (D) and the vessel wall intima-media thickness (IMT) in the CCA were recorded. Whole blood viscosity (WBV) at the shear rate of 94,5 s
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blood pressure, blood viscosity, cerebral infarctions, color duplex sonography, common carotid artery.
blood pressure, blood viscosity, cerebral infarctions, color duplex sonography, common carotid artery.
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Color duplex sonography of carotid arteries was performed in 924 patients: 368 with RF for CVDs, 126 with transient ischemic attacks (TIAs), 287 with chronic unilateral infarction (CUI) and 143 with multiple infarctions.
Color duplex sonography of carotid arteries was performed in 924 patients: 368 with RF for CVDs, 126 with transient ischemic attacks (TIAs), 287 with chronic unilateral infarction (CUI) and 143 with multiple infarctions. The intima media thickness (IMT) of the common carotid (CCA) and internal carotid (ICA) arteries was measured by B-mode and M-mode scanning. Nonmodifiable (age and sex) and some modifiable (hypertension, diabetes mellitus, atrial fibrillation or other cardiac conditions, dyslipidemia, carotid artery stenoses and obesity) RF for CVDs were evaluated. In 67 subjects with RF, 57 patients with CVDs (31 with TIAs and 26 with CUI) and 16 healthy volunteers correlative clinical, neurosonographic and echocardiographic investigations were performed.
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Color duplex sonography of both carotid arteries was performed in transverse and longitudinal planes and intima media thickness (IMT) of the common carotid (CCA) and internal carotid (ICA) arteries was measured.
Exercise stress-test (EST) and echocardiography were performed in 503 patients (mean age 54±17 years) with symptoms for CVD in two cardiological centers. Based on EST the patients were classified in three groups with positive, negative or questionable results. Color duplex sonography of both carotid arteries was performed in transverse and longitudinal planes and intima media thickness (IMT) of the common carotid (CCA) and internal carotid (ICA) arteries was measured. No modifiable (age and sex) and some modifiable (hypertension, diabetes, atrial fibrillation, dyslipidemia, carotid stenosis, obesity, hemorheological variables – leucocytes (Leuc) hemoglobin (Hb), hematocrit (Ht), FR for CVD were evaluated. The pts with positive EST were on PTCA undergone and pts with questionable EST the decision for PTCA was taken after severity of carotid pathology and clinical exam.
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CEREBRAL HEMODYNAMIC ASSESSMENT WITH TRANSCRANIAL COLOR DUPLEX IN INTRACRANIAL HYPERTENSION EXPERIMENTAL MODEL
CEREBRAL HEMODYNAMIC ASSESSMENT WITH TRANSCRANIAL COLOR DUPLEX IN INTRACRANIAL HYPERTENSION EXPERIMENTAL MODEL
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At each intervention we performed a neurological assessment of the pupils and Doppler exam (Ultrasound color duplex SonoSite-Micromax).
An experimental study, using 30 crossbred Landrace and Duroc pigs weighing approximately 18–20 kg and aged 2months. Prior to surgery, pigs were starved for 12 h but had free access to water. We coadministered intramuscular ketamine at dose of 15mg/ kgand xylazine at a dose of 2 mg/kg. The experimental hypertension was performed with an intracranial balloon. At each intervention we performed a neurological assessment of the pupils and Doppler exam (Ultrasound color duplex SonoSite-Micromax). Continuous intracranial pressure measurement by intraparenchymal and extradural catheters was also performed. The animals underwent to a baseline measurement, a pre-balloon insufflation, a post-balloon insufflation before and after saline solution infusion. The association of the results of duplex was compared with ICP and systemic monitoring. In complementary we measured
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animal model, intracranial hypertension, transcranial color duplex.
animal model, intracranial hypertension, transcranial color duplex.
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We have evaluated ACZ CVR in the brain tissue by transcranial power modulation imaging (PMI) and correlated with transcranial color duplex sonography (TCDS) observed CVR in the major arteries.
We have evaluated ACZ CVR in the brain tissue by transcranial power modulation imaging (PMI) and correlated with transcranial color duplex sonography (TCDS) observed CVR in the major arteries.
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acetazolamide vasoreactivity, color duplex
acetazolamide vasoreactivity, color duplex
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11. NEUROSONOLOGY AND CEREBRAL HEMODYNAMICS, vol. 10, 2014, No. 2 , , ,

Temporal artery biopsy is still a gold standard for diagnosis, however in recent years color duplex ultrasound examination has been proposed as a useful diagnostic screening tool in cases of TA suspicion.
Temporal artery biopsy is still a gold standard for diagnosis, however in recent years color duplex ultrasound examination has been proposed as a useful diagnostic screening tool in cases of TA suspicion. Schmidt et al. [26] first described the edematous wall swelling of the temporal arteries, characterized sonographically as a hypoechoic or anechoic circumferential mural thickening localized around the arterial lumen, with a diameter ranging from 0.3–2.0 mm (Fig. 3). This finding was named as the “halo sign”. Two other parameters considered relevant for the diagnosis of TA were described: stenosis and occlusion. Stenosis, characterized by a narrowing of the lumen, was defined as a segmental increase in blood flow velocity two times greater than in the region before the stenosis.
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There is a need for high quality color duplex ultrasound equipment, with standardized adjustments and a high frequency (> 8MHz) linear transducer [26].
For correct diagnosis, the appropriate examination technique and the experience of the sonographer are very important. There is a need for high quality color duplex ultrasound equipment, with standardized adjustments and a high frequency (> 8MHz) linear transducer [26]. False positive and negative halos may be seen in ultrasound examination. It is important to take care about the color gain during insonation, while if it is inappropriate could give false positive or negative results. Ultrasound is not able to differentiate between TA and other vasculitis that can involve the temporal arteries.
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Color duplex ultrasonography in the diagnosis of temporal arteritis.
lker L, Gromnica-Ihle EJ. Color duplex ultrasonography in the diagnosis of temporal arteritis.
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12. NEUROSONOLOGY AND CEREBRAL HEMODYNAMICS, vol. 11, 2015, No. 2 , , ,

The color-duplex sonography is an easy-to-perform and noninvasive diagnostic tool that may be helpful for the diagnosis and assessment of response to steroid therapy in this vasculitis.
Giant cell arteritis is an important cause of morbidity with irreversible visual loss as the most serious complication. Early diagnosis and start of treatment is essential. The color-duplex sonography is an easy-to-perform and noninvasive diagnostic tool that may be helpful for the diagnosis and assessment of response to steroid therapy in this vasculitis.
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Before biopsy color-duplex sonography of temporal arteries was performed.
A 75-year-old man presented to the Neurology Department with severe new-onset headache localized in the right temporal area. Clinical examination revealed abnormalities of both superficial temporal arteries and elevated acute phase reactants in his blood. Diagnosis of giant cell arteritis was suspected and corticosteroid therapy was immediately started. Before biopsy color-duplex sonography of temporal arteries was performed. On both sides tortuous superficial temporal arteries with segmental dark halos and stenoses were present. These findings supported our clinical suspicion and we continued to treat our patient. A few days later the temporal artery biopsy confirmed histopathologically the initial diagnosis. In the further course of the illness colorduplex sonography took an important place in the evaluation of the treatment efficacy.
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This case report emphasizes on the usefulness of color-duplex sonography in diagnosis of giant cell arteritis and reminds of the high specificity of bilateral halo sign.
This case report emphasizes on the usefulness of color-duplex sonography in diagnosis of giant cell arteritis and reminds of the high specificity of bilateral halo sign.
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13. NEUROSONOLOGY AND CEREBRAL HEMODYNAMICS, vol. 12, 2016, No. 2 , , ,

The value of color duplex for sonography of the vertebral artery.
Delcker A, Diener HC. The value of color duplex for sonography of the vertebral artery.
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Blood flow, caliber, different indices, and asymmetry throughout the entire vessel length can be detected using the standard color duplex imaging [13].
Blood flow, caliber, different indices, and asymmetry throughout the entire vessel length can be detected using the standard color duplex imaging [13]. The vessel caliber criteria used to diagnose VA hypoplasia remain a matter of debate. ln an early pathoanatomic study, hypoplasia was defined as a lumen diameter of less than 2 mm, this definition being supported by a sonographic study revealing decrease in blood flow velocity [14]. Nonetheless, other authors have proposed a diagnosis of hypoplasia when the caliber is less than 3 mm and the Doppler spectrum shows a high resistive pattern [15].
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14. NEUROSONOLOGY AND CEREBRAL HEMODYNAMICS, vol. 14, 2018, No. 2 , , ,

Accuracy of color duplex ultrasound diagnosis of spontaneous carotid dissection causing ischemia.
Benninger DH, Georgiadis D, Gandjour J, Baumgartner RW. Accuracy of color duplex ultrasound diagnosis of spontaneous carotid dissection causing ischemia.
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The Role of Color Duplex Ultrasonography in Subclavian Vein Thrombosis in Pacemaker
The Role of Color Duplex Ultrasonography in Subclavian Vein Thrombosis in Pacemaker
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He was investigated in the first 7 days after the onset of the symptoms using multimodal ultrasound (color duplex, B-Flow and 3D/4D imaging), CT and MRI studies.
A 66-year-old man with a history for ischemic stroke in the left middle cerebral artery (MCA) territory in the past received a sudden visual loss of the left eye. He was investigated in the first 7 days after the onset of the symptoms using multimodal ultrasound (color duplex, B-Flow and 3D/4D imaging), CT and MRI studies. The evolution of the clinical symptoms and the ophthalmic status are followup.
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THE ROLE OF COLOR DUPLEX ULTRASONOGRAPHY IN SUBCLAVIAN VEIN THROMBOSIS IN PACEMAKER IMPLANTATION
THE ROLE OF COLOR DUPLEX ULTRASONOGRAPHY IN SUBCLAVIAN VEIN THROMBOSIS IN PACEMAKER IMPLANTATION
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15. NEUROSONOLOGY AND CEREBRAL HEMODYNAMICS, vol. 15, 2019, No. 1 , , ,

He was investigated in the first 7 days after the onset of the symptoms using multimodal ultrasound (color duplex, B-Flow and 3D/4D imaging), computed tomography (CT), and magnetic resonance imaging (MRI).
A 66-year-old man with a history for ischemic stroke in the left middle cerebral artery (MCA) territory in the past and sudden visual loss of the left eye was examined. He was investigated in the first 7 days after the onset of the symptoms using multimodal ultrasound (color duplex, B-Flow and 3D/4D imaging), computed tomography (CT), and magnetic resonance imaging (MRI). The evolution of the clinical symptoms, the ophthalmic status, and the change in sonographic findings before and after carotid endarterectomy were followed up.
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(color duplex scanning, B-Flow and 2D/3D/4D imaging) of extracranial brain arteries, optic nerves and papillae was performed.
(color duplex scanning, B-Flow and 2D/3D/4D imaging) of extracranial brain arteries, optic nerves and papillae was performed. The optic nerve diameters were measured and the optic nerve/sheath index was determined. The blood flow in the central retinal artery was shown using B-flow and its velocities were recorded (Fig. 2) [1, 16, 17, 18]. The results of the imaging ultrasound were compared with head CT and MRI data.
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Keywords related to: 'color duplex'

● color-coded duplex sonography

● color-coded duplex ultrasound

● color coded duplex sonography

● transcranial color duplex

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