Predicting malignant neck lymphadenopathy using color duplex sonography based on multivariate analysis

2016 ◽  
Vol 44 (9) ◽  
pp. 587-594 ◽  
Author(s):  
Maria C. Chammas ◽  
Túlio A. A. Macedo ◽  
Victor W. Lo ◽  
Andrea C. Gomes ◽  
Adriana Juliano ◽  
...  
Keyword(s):  
Multivariate Analysis ◽  
Duplex Sonography ◽  
Color Duplex Sonography

The case of posterior ischemic optic neuropathy in patient with multiple sclerosis

2021 ◽  
pp. 107-110
Author(s):  
T.N. Kiseleva ◽  
◽  
E.K. Eliseeva ◽  
M.N. Zakharova ◽  
◽  
...  
Keyword(s):  
Multiple Sclerosis ◽  
Blood Flow ◽  
Optic Neuropathy ◽  
Internal Carotid ◽  
Duplex Sonography ◽  
Ischemic Optic Neuropathy ◽  
Color Duplex Sonography ◽  
Retrobulbar Neuritis ◽  
Posterior Ischemic Optic Neuropathy ◽  
Brachiocephalic Arteries

A case of posterior ischemic optic neuropathy (PION) in a 41-year-woman with 19 years remission of multiple sclerosisis presented.She had complaints of acute unilateral loss of vision and underwent complex clinical and instrumental examination including B-scan of orbit, color duplex sonography (CDS) of orbital vessels and brachiocephalic arteries, magnetic resonance imaging (MRI). The significant stenosis of internal carotid artery due to its dissection was detected on the affected eye side. The results of ultrasound examinations and MRI excluded demyelinative retrobulbar neuritis (RBN) and determined the signs of blood flow impairment in vessels of orbital part of the optic nerve. Differential diagnostics of PION and RBN required the investigations of blood flow in orbital vessels and brachiocephalic arteries. Key words: posterior ischemic optic neuropathy, multiple sclerosis, retrobulbar neuritis, color duplex sonography, internal carotid artery.

Estimation of antithyroid drug dose in Graves’ disease: value of quantification of thyroid blood flow with color duplex sonography

2001 ◽  
Vol 27 (8) ◽  
pp. 1137-1141 ◽  
Author(s):  
Andreas Saleh ◽  
Günter Fürst ◽  
Joachim Feldkamp ◽  
Erhard Godehardt ◽  
Andreas Grust ◽  
...  
Keyword(s):  
Blood Flow ◽  
Antithyroid Drug ◽  
Duplex Sonography ◽  
Drug Dose ◽  
Graves Disease ◽  
Color Duplex Sonography

Comparative study of transcranial color duplex sonography and transcranial Doppler sonography in adults

1993 ◽  
Vol 78 (5) ◽  
pp. 776-784 ◽  
Author(s):  
Martin Schöoning ◽  
Reiner Buchholz ◽  
Jochen Walter
Keyword(s):  
Flow Velocity ◽  
Doppler Sonography ◽  
Transcranial Doppler Sonography ◽  
Maximum Flow ◽  
Duplex Sonography ◽  
Color Duplex Sonography ◽  
Content Type ◽  
Maximum Flow Velocity ◽  
Fine Print ◽  
Flow Velocities

✓ To determine whether the frequency shift recorded in basal cerebral arteries corresponds to “true” flow velocities, a prospective comparative study of transcranial color duplex sonography (TCCD) and transcranial Doppler sonography (TCD) was performed. A 2.0-MHz transducer of a computerized TCCD system and a TCD device were used. The middle cerebral artery (MCA) and anterior cerebral artery (ACA) were examined by TCCD in 49 healthy volunteers (mean age 35 ± 12 years). In 45 of the same volunteers a comparative TCD examination was possible. The studies were carried out blindly by different examiners at separate appointments. Peak systolic flow velocity, end-diastolic maximum flow velocity, time-averaged maximum flow velocity, and the pulsatility index were measured by both techniques. Additionally, for TCCD, time-averaged flow velocity was assessed, the resistance index and a spectral broadening index were calculated, and the energy output required for reliable measurement was analyzed. The TCCD signals were recorded in 98% of both MCA's and ACA's; with TCD, signals were recorded in 98% of MCA's and 87% of ACA's. Although in both vessels the angle-corrected peak systolic and time-averaged maximum velocities were approximately 10% to 15% higher in TCCD than in TCD measurements, correlation of flow velocities between both techniques was significant (p < 0.0001); differences between sides and age-dependency of flow velocities corresponded as well. In a reproducibility study, TCCD was repeated in 27 subjects by a third examiner with significant correlation (p < 0.0001) of both TCCD examinations. It is concluded that the advantage of TCCD is associated more with a qualitative aspect than a quantitative one. The additional visual dimension of TCCD can open new diagnostic possibilities in cerebrovascular disorders.

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