Color Doppler Ultrasonography
Mostrando 25-31 de 31 artigos, teses e dissertações.
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25. Avaliação do leito arterial distal em revascularização de membros inferiores: estudo comparativo entre ecografia-doppler, arteriografia e medidas diretas de fluxo no intra-operatório / Color-flow duplex hemodynamic assessment of runoff in ischemic lower limb revascularization: a comparative study among preoperative duplex scanning, arteriography and intraoperative direct out flow measurements
The clinical indications and the surgical technique regarding arterial revascularization in patients with critical lower limb ischemia have been thoroughly studied and well determined in the literature. However, a considerable number of grafts evolutes to occlusion even nowadays. Among the factors known to contribute to early graft failure the resistance of
Publicado em: 2006
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26. Avaliação da extensão da oclusão arterial na isquemia crônica de membros inferiores: estudo comparativo da ecografia com Doppler colorido e da arteriografia / Assessment of the arterial occlusion extension in the lower extremity chronic ischemia: a comparative study of the duplex ultrasound and the arteriography
Arteriography is an invasive method of imaging the vascular system that allows assessment of the intraluminal characteristics of the arteries. It detects minimal arterial wall changes with intravascular injections of contrast agents. Dispite significant advances in lasts decades, some pitfalls remain in determining the extension of arterial occlusions and th
Publicado em: 2006
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27. Comparative histopathological study of placentas from pregnancies with absent or reversed end-diastolic velocity flow in the dopplervelocimetry of the umbilical arteries / "Estudo histopatológico comparativo de placentas oriundas de gestações com diástole zero ou reversa à dopplervelocimetria das artérias umbilicais"
Com o intuito de estudar a histopatologia da placenta na insuficiência grave desse órgão, foram selecionados preparados histológicos de 140 placentas oriundas de gestações com diástole zero (DZ) ou diástole reversa (DR) à dopplervelocimetria das artérias umbilicais, acompanhadas no Setor de Avaliação da Vitalidade Fetal da Clínica Obstétrica do
Publicado em: 2004
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28. Study of the uterine arteries Doppler ultrasound in three periods of normal pregnancies / "Estudo dopplervelocimétrico das artérias uterinas em três períodos de gestações normais"
Estudo longitudinal, prospectivo, comparativo de avaliação dopplervelocimétrica das artérias uterinas direita e esquerda em 37 gestantes normais em três períodos da gestação, acompanhadas na Clínica Obstétrica do HCFMUSP. Análise da relação S/D, índice de pulsatilidade e índice de resistência, relação com o número de incisuras e com posiç
Publicado em: 2003
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29. Evaluation of Flow Characteristics of the Left Internal Thoracic Artery Graft: Perioperative Color Doppler Ultrasonography versus Intraoperative Free-Bleeding Technique
From October 2000 through April 2001, we prospectively evaluated the flow characteristics of the left internal thoracic artery (LITA) graft in a homogenous group of 44 men with isolated severe proximal left anterior descending coronary artery stenosis who underwent elective coronary artery bypass grafting with cardiopulmonary bypass. We performed transthorac
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30. Comparison of the Doppler perfusion index and intraoperative ultrasonography in diagnosing colorectal liver metastases. Evaluation with postoperative follow-up results.
OBJECTIVE: The authors compared the accuracy of intraoperative ultrasound with the Doppler perfusion index (DPI) in the detection of occult liver metastases. SUMMARY BACKGROUND DATA: Intraoperative ultrasound is well recognized to be very sensitive in the detection of small liver tumors. Previous studies using duplex/color Doppler sonography have shown that
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31. Radiology: Color Doppler Ultrasonography of the Liver
The Scientific Board of the California Medical Association presents the following inventory of items of progress in radiology. Each item, in the judgment of a panel of knowledgeable physicians, has recently become reasonably firmly established both as to scientific fact and important clinical significance. The items are presented in simple epitome and an aut