Results 251 to 260 of about 4,975,159 (294)

Power Doppler: An advance over colour Doppler for transcranial imaging?

Ultrasound in Medicine & Biology, 1996
The aim of this study is to compare the ability of mean frequency-based colour Doppler (CD) and power Doppler (PD) to identify the basal cerebral arteries in normal subjects. Fifty volunteers were recruited into the study. The temporal acoustic window was used to image the basal cerebral arteries bilaterally. The number of positively identified vessels
Kenton, AR, Martin, PJ, Evans, DH
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Thyroid nodules: Evaluation with power Doppler and duplex Doppler ultrasound

Otolaryngology–Head and Neck Surgery, 2005
This study purposes a new classification of thyroid nodules blood flow by power duplex Doppler ultrasound. A total of 177 nodules were studied with B‐mode scanning, power Doppler, and spectral analysis. These data were compared with cytological results from ultrasound‐guided fine‐needle aspiration biopsy. Univariate and multivariate logistic regression
Maria Cristina, Chammas, Renê, Gerhard, Ilka Regina Souza, de Oliveira, Azzo, Widman, Nestor, de Barros, Marcelo, Durazzo, Alberto, Ferraz, Giovanni Guido, Cerri   +7 more
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B-Mode, power doppler and contrast-enhanced power doppler ultrasonography in the diagnosis of breast tumors

Acta Radiologica, 2001
Purpose: To investigate the role of B-mode and unenhanced and enhanced power Doppler ultrasonography (US) in differentiating solid breast lesions, and to find out whether morphologically different tumors differ in terms of vascularity. Material and Methods: Sixty-five lesions, indeterminate or suggestive of malignancy after ...
H, Reinikainen, T, Rissanen, M, Päivänsalo, E, Pääkkö, J, Jauhiainen, I, Suramo   +5 more
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Power Doppler Sonography of Cervical Lymphadenopathy

Clinical Radiology, 2001
The supraclavicular region is a common site for tuberculous and metastatic nodes from infraclavicular carcinomas. Grey scale sonographic features differentiating the two have been previously described. However, as power Doppler sonography is now frequently used in the assessment of neck nodes, power Doppler features that may help to differentiate the ...
A, Ahuja, M, Ying, Y H, Yuen, C, Metreweli   +3 more
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Power Doppler findings in plantar fasciitis

Ultrasound in Medicine & Biology, 2004
The study was performed to characterize the power Doppler ultrasonographic (PDU) findings in plantar fasciitis using a 7.5 MHz linear transducer. Both feet of 20 patients who had a clinical and ultrasound (US) diagnosis of unilateral plantar fasciitis were evaluated with PDU. The pain level was assessed with a visual analogue scale (VAS). A total of 20
Markus, Walther, Stefan, Radke, Stephan, Kirschner, Volker, Ettl, Frank, Gohlke   +4 more
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Colour and Power Doppler

1998
Taking B-mode findings as a starting point, this book provides details of a more far-reaching, functionally oriented diagnostic procedure, which takes advantage of 2nd harmonic imaging and the use of echo enhancers. The images presented and the knowledge derived from them are the result of an intensive two-year theoretic-methodic and practical ...
Wolfram Wermke, Bernhard Gaßmann
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Power Doppler: It's a good thing

Seminars in Ultrasound, CT and MRI, 1997
Power Doppler is a new method of ultrasound flow imaging the utility of which is currently under investigation. This technique creates a flow map based on the integrated power of the Doppler spectrum, rather than mean Doppler frequency. Power Doppler imaging is inherently more sensitive in terms of flow detection than standard color Doppler imaging ...
K J, Murphy, J M, Rubin
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Color and power Doppler imaging of the kidneys

World Journal of Urology, 1998
Sonography is a widely used modality for the evaluation of both native and transplanted kidneys. It is noninvasive, portable, and requires minimal patient preparation. Renal sonography can estimate kidney size, determine the presence or absence of hydronephrosis, and the presence and characteristics of any intrarenal or extrarenal masses.
P, Chen, N, Maklad, M, Redwine
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Power Doppler Ultrasonography in Ocular and Orbital Diseases

Ophthalmologica, 1998
Purpose: The authors present a preliminary report to test the usefulness of a new technique called power Doppler ultrasonography (PD) in the study of orbital vessels. Material and Methods: The ophthalmic artery and vein as well as the central retinal artery and vein have been examined in 10 patients with a General Electric Logiq 5000 that allows the ...
ROSA N, CENNAMO, GIOVANNI, BREVE MA, DE RUGGIERO P.   +3 more
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Color Doppler and 3D Power Doppler Hysterosalpingography (Sonohysterosalpingography)

2003
Sažetak trenutno ...
A Kurjak, S Kupesic, D Bjelos
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