Disease relevance of Ultrasonography, Doppler

• The aim of this study was to establish whether contrast-enhanced Doppler ultrasonography (US) is able to distinguish between early hepatocellular carcinoma (HCC) and small nonmalignant nodules in cirrhosis [1].
• Comparison of captopril scan and Doppler ultrasonography as screening tests for transplant renal artery stenosis [2].
• PURPOSE: To evaluate by using B-mode and power Doppler ultrasonography (US) and clinical assessment the response of hand joint synovitis in patients with active rheumatoid arthritis (RA) to treatment with the anti-tumor necrosis factor-alpha agent infliximab [3].
• STUDY DESIGN: Twelve patients with preeclampsia were randomized to two groups and studied with Doppler ultrasonography before and immediately after infusion of either a 6 gm intravenous loading dose of magnesium sulfate or a placebo [4].
• AIM: To employ pulse wave Doppler ultrasonography to evaluate the changes in portal blood flow velocity in patients with chronic hepatitis C (CHC) receiving interferon (IFN) treatment [5].

Psychiatry related information on Ultrasonography, Doppler

• A new method for the evaluation of erectile dysfunction: sildenafil plus Doppler ultrasonography [6].

High impact information on Ultrasonography, Doppler

• Arterial compliance in non-fish eaters, as measured by doppler ultrasonography, was significantly lower than that in fish eaters in the healthy group, in the NIDDM group, and in the two groups combined [7].
• Resting and peak hyperemic brachial artery blood flow and diameter (BABF [mL/min] and BAD [mm], respectively) were measured by 2-dimensional and Doppler ultrasonography at baseline, at 3 and 72 hours during dobutamine infusion, and at 2 and 4 weeks after discontinuation of dobutamine therapy [8].
• In addition, treatment with octreotide infusion did not result in significant changes in creatinine clearance, daily urinary sodium, plasma renin activity, plasma aldosterone and glucagon levels, or renal and mesenteric artery resistance indices as measured by Doppler ultrasonography [9].
• Doppler ultrasonography of fetal cardiovascular hemodynamics was performed before and 6 hours after maternal LPS [10].
• Diagnostic value of Doppler ultrasonography in rheumatoid arthritis: comment on the article by Weidekamm et al [11].

Chemical compound and disease context of Ultrasonography, Doppler

• Pathological Doppler findings and weak response to locally administered papaverine or alpha-blocking agents in these impotent men led to pharmacoangiography in 17 of 372 patients with erectile dysfunction; of these 372 patients 130 (35%) had subnormal penile blood flow according to Doppler ultrasonography [12].
• To evaluate the effect of hydralazine on placental circulation in cases of pre-eclampsia, Doppler ultrasonography was used to record blood velocity in the arcuate and umbilical arteries in 12 pregnancies complicated by pre-eclampsia, blood velocity in the maternal renal artery also being examined [13].
• GGT, albumin, albumin/globulin, ALP, AFP, hyaluronic acid, Col IV, TIMP-1, alpha-2- macroglobulin, transforming growth factor-beta 1 (TGFbeta1), NK, some parameters of Doppler ultrasonography, CT and/or MR imaging were all related to the staging of fibrosis [14].
• Evaluation of spinal cord blood flow during prostaglandin E1-induced hypotension with power Doppler ultrasonography [15].
• Total cholesterol (308.67+/-85.82) and Lp(a) (32.10+/-17.30) values showed statistical significance (P<0.05) in patients with marked stenosis when compared with patients of normal doppler ultrasonography [16].

Biological context of Ultrasonography, Doppler

• PURPOSE: To evaluate quantitative Doppler ultrasonography (US) for assessing renal blood flow changes induced with endothelin-1 (ET-1) and fenoldopam mesylate in conscious dogs [17].
• By using colour Doppler ultrasonography, we could also optimize the site and volume of ethanol injection and could detect the recurrence of parathyroid cell growth easily, with lower risk of complications [18].
• Heart rate (HR), mean arterial pressure (MAP), stroke volume (SV) and cardiac output (Q) were measured (the latter two by Doppler ultrasonography) every 1 min for 5 min after injection of either placebo or esmolol 100 mg or 200 mg [19].
• METHODS: A total of 182 unselected consecutive patients undergoing stimulated intrauterine insemination (IUI) cycles was recruited where the perifollicular vascularity of follicles > or =16 mm was studied using a subjective grading system and transvaginal power Doppler ultrasonography, 36 h after HCG administration [20].
• The aim of this study was to assess the importance of this collateral by comparing the results of transorbital Doppler ultrasonography and regional cerebral blood flow measurements using SPECT and Xenon-133 inhalation in 41 patients with unilateral high-grade internal carotid artery occlusive disease [21].

Anatomical context of Ultrasonography, Doppler

• In addition, we tested whether HFE mutations were associated with the degree of arteriosclerosis assessed non-invasively by Doppler ultrasonography on the carotid and femoral arteries, in a group of apparently healthy individuals (the AXA Study) [22].
• METHODS: Flows were evaluated by Doppler ultrasonography in the subhepatic inferior vena cava, hepatic vein, and portal vein during respiratory monitoring and with a tilt table [23].
• In an attempt to differentiate APN from lower urinary tract infection (UTI), we evaluated the ability of power Doppler ultrasonography (PDU) to predict renal parenchymal involvement, as assessed by dimercaptosuccinic acid ((99m )Tc-DMSA) scintigraphy [24].
• The acute effects of a newly synthesized thromboxane dual blocker (KDI-792), a combined thromboxane synthase inhibitor and receptor antagonist, on lower limb circulation were examined using two-dimensional color and pulse Doppler ultrasonography and laser Doppler flowmetry [25].
• Doppler ultrasonography should be used to assess the fetal ductus arteriosus in patients treated with prostaglandin inhibitors [26].

Associations of Ultrasonography, Doppler with chemical compounds

• Blood flow responses to intracoronary adenosine were measured using intracoronary Doppler ultrasonography and quantitative angiography [27].
• Calcium carbonate particles embedded in gelatin and turkey breast tissues were visualized with acoustic resonance imaging and power Doppler ultrasonography [28].
• P:URPOSE: To evaluate the ability of a quantified power Doppler ultrasonography (US) system to help quantitate differences in tumor vascularity after radiation therapy and administration of tumor necrosis factor (TNF) [29].
• RESULTS: Serial Doppler ultrasonography, which was regularly checked until 30 days posttransplant, revealed the patent interposition vein graft in 38 of 42 recipients (patency rate 90.5%) [30].
• PURPOSE: To prospectively evaluate the feasibility of using power Doppler ultrasonography (US) and measurement of circulating angiogenic factors to assess the antiangiogenic effect of thalidomide in hepatocellular carcinoma [31].

Gene context of Ultrasonography, Doppler

• Effects of treatment with etanercept (Enbrel, TNRF:Fc) on rheumatoid arthritis evaluated by Doppler ultrasonography [32].
• A new approach to studying angiogenesis in rheumatoid arthritis by means of power Doppler ultrasonography and measurement of serum vascular endothelial growth factor [33].
• In Lox(-/-) fetuses, Doppler ultrasonography revealed increased impedance in the umbilical artery, descending aorta, and intracranial artery blood velocity waveforms, decreased mean velocities across cardiac inflow and outflow regions, and increased pulsatility in ductus venosus blood velocity waveforms [34].
• MATERIALS AND METHODS: Ten patients with proved acute RVT (eight infants and two boys with renal allografts) were studied with serial Doppler ultrasonography (US) of the inferior vena cava and the main renal and intrarenal veins and arteries [35].
• Every subject with a positive Doppler ultrasonography for hepatic vascular malformations underwent abdominal computed tomography and celiac angiography [36].

Analytical, diagnostic and therapeutic context of Ultrasonography, Doppler

• Intestinal blood flow was assessed using Doppler ultrasonography in the marginal artery and perfusion fluorometry, which quantifies fluorescein in the bowel wall in dye fluorescence units [37].
• Assessment of therapeutic response in hepatocellular carcinoma treated with percutaneous radio frequency ablation: comparison of multiphase helical computed tomography and power Doppler ultrasonography with a microbubble contrast agent [38].
• A standard protocol followed in emergency CTEA patients included carotid Doppler ultrasonography, computed cerebral tomography (CT), four-vessel cerebral arteriography, and intravenous heparin [39].
• OBJECTIVES: To evaluate the effects of doxapram on cerebral hemodynamics in preterm infants using cerebral Doppler ultrasonography and near-infrared spectroscopy [40].
• The diameter of the carotid artery was measured by use of two-dimensional ultrasonography and Doppler ultrasonography, respectively, before and after xylazine administration [41].

References