Pulsed doppler
Automatic tracing of blood flow velocity in pulsed Doppler images
... in Doppler images is of great importance in clinical studies and ...the Doppler waveform envelope, numerous indices can be obtained, such as the pulsatility index, resistance index, and systolic/diastolic ...
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How successful is color flow mapping and pulsed Doppler studies in predicting histologically confirmed benign and malignant adnexal masses in perimenopausal women
... 17. Brown DL, Frates MC, Laing FC. Ovarian masses. can benign and malignant masses be differentiated with color and pulsed Doppler US?. 1994;190:333-6. 18. Carter J, Saltzman A, Fowler J, Carson L, Twiggs ...
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Recalculation of an artificially released avalanche with SAMOS and validation with measurements from a pulsed Doppler radar
... frequency pulsed Doppler radar provides a good estimate of the distribution of the velocities along the avalanche ...the Pulsed Doppler Radar with the simulated values are good in ...
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Automatic tracing of blood flow velocity in pulsed Doppler images
... in Doppler images is of great importance in clinical studies and ...the Doppler waveform envelope, numerous indices can be obtained, such as the pulsatility index, resistance index, and systolic/diastolic ...
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Relationship Between Pressure Passivity and Subependymal/Intraventricular Hemorrhage as Assessed by Pulsed Doppler Ultrasound
... Pediatrics 1983;72:665-669; puLsed Doppler ultrasound, subependymal/intraventricular hem- orrhage, pressure passive, autoregukition.. A study by Lou et al’ utilizing intracarotid injec-.[r] ...
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An ultrasonic pulsed Doppler balloon catheter for use in cardiovascular diagnosis
... the linearity of the Doppler balloon catheter was in general less in the pulsatile-flow model {compared to the steady-flow model, the capability of the device to measure phasic velocity [r] ...
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Pulsed Doppler Determinations of Cardiac Output in Neonates: Normal Standards for Clinical Use
... sults of a survey of echocardiographic measurements. Alverson DC, Eldridge MW, Johnson JD, et a!: Noninvasive measurement of cardiac output in healthy preterm and term newborn infants. W[r] ...
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Diagnosis of Vein of Galen Arteriovenous Malformation by Two-Dimensional Ultrasound and Pulsed Doppler Method
... Arteriovenous (AV) malformations of the vein of Galen are rare disorders”2 that may appear in the newborn period with severe congestive heart failure mimicking many intrinsic cardiac def[r] ...
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Morphological effects of pulsed Doppler diagnostic ultrasound on rat adult lung and fetal tissues : a thesis presented in fulfillment of the requirements for the degree of Master of Science in Physiology and Anatomy at Massey University
... This study i nvestigated morpholo g i cal effects of diagnostic p ulsed Doppler u ltrasound o n adult and fetal rat lungs f rom 1 6 to 22 days gestation. A clinical u ltrasound m achine with two types of focused ...
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Pulsed and Tissue Doppler Echocardiographic Abnormalities in Patients with Diastolic Heart Failure with and without Atrial Fibrillation
... Echo pulsed Doppler in DHF and AF compared with those in SR showed a severe restrictive pattern with significantly thick septum wall, higher LV mass index, shorter DT and higher E/e − ratio of ...
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Surrogates of Poor Prognostic Signs in Adult Patients with Homozygous Sickle Cell Disease: An Echocardiographic Study
... for pulsed Doppler of both the mitral and tricuspid ...tissue Doppler of the lateral tricuspid annulus was obtained for systolic velocity (S), late diastolic velocity (A-) and the early filling ...
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Preoperative diastolic function predicts the onset of left ventricular dysfunction following aortic valve replacement in high risk patients with aortic stenosis
... tolic (S), diastolic (D) and atrial reversal velocities (Ar) were measured with the pulsed Doppler sample volume positioned within 1 to 2 cm of the left upper pulmonary vein. Thereafter, the TDI function ...
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Haemolymph flow distribution, cardiac performance and ventilation during moderate walking activity in Cancer magister (Dana) (Decapoda, Crustacea)
... micro pulsed-Doppler flowprobes now allows the study of simultaneous changes in haemolymph flow through each of the different major arterial systems in crustaceans exposed to environmental or metabolic ...
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Heterogeneous perfusion of the paired gills of the abalone Haliotis iris Martyn 1784: an unusual mechanism for respiratory control
... Recent investigations of gas exchange in Haliotis iris have demonstrated that the gills are responsible for essentially all oxygen uptake under both normoxia and hypoxia and are capable of high oxygen extraction ...
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Automated wind turbine wake characterization in complex terrain
... scanning pulsed Doppler lidar operated by Cornell Univer- sity (mid-January and the end of June 2017) is presented ...scanning Doppler lidar sufficient for acquiring a data set to rigorously evaluate ...
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Echocardiographic Assessment of Cardiac Function During Respiratory Syncytial Virus Infection
... To understand better the cardiopulmonary inter- action in patients with acute respiratory syncytial virus bronchiolitis, we performed M-mode echocardiograms and pulsed Doppler assessment[r] ...
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Oscillometric Blood Pressures in the Arm, Thigh, and Calf in Healthy Children and Those With Aortic Coarctation
... The pulsed Doppler estimation of the systolic pressure gradient was obtained from the equation 4(V22 - V2), where V2 and V are the Doppler-based measures of blood velocity below and abov[r] ...
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Pathological and Doppler Ultrasonographic Study of Kidney Hemodynamic Response in Saffron (Crocus sativua) Pretreated Rats
... real-time pulsed doppler analysis, kidney hemodynamic response including blood flow velocity in segmental arteries shortly after administration of various doses of saffron (10, 40 and 90 mg/kg) was ...
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Review Article Three-dimensional color power Doppler as an imaging technique in cancer
... nature. Pulsed Doppler spectral analysis and color Doppler imaging enable the evaluation of blood vessel distribution, tumor blood flow, and quantitative measurement of blood flow velocity in ...
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What is the lowest change in cardiac output that transthoracic echocardiography can detect?
... with pulsed Doppler, the early diastolic (e’) and systolic (s’) peak velocities of the lateral mitral annulus and the systolic peak (S) velocity of the tricuspid annulus with tissue Doppler imaging, ...
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