標(biāo)題: Titlebook: Color Doppler Flow Imaging; and other advances i J. Roelandt Book 1986 Martinus Nijhoff Publishers, Dordrecht 1986 Bypass.congenital heart [打印本頁] 作者: charity 時間: 2025-3-21 18:03
書目名稱Color Doppler Flow Imaging影響因子(影響力)
作者: 啤酒 時間: 2025-3-21 21:00
Two-dimensional Doppler flow mapping in adult cardiology: advantages and limitationsoninvasive measurement of cardiac output. Throughout this discussion 2D-Doppler will be compared to current pulsed/ continuous wave V-mode techniques; however, it is important to emphasize that 2D-and V-mode Doppler should be regarded as complementary modalities in an integrated cardiac ultrasound e作者: 展覽 時間: 2025-3-22 01:17
Color flow imaging and conventional two- dimensional pulsed Doppler echocardiography: selected obserions thus appeared in the more open minded European literature. The Brandestini instrument remained a uniquely curious unit, and did not progress toward commercial availability. At about the same time, our Japanese colleagues were engaged in work toward production of a commercially available real ti作者: Precursor 時間: 2025-3-22 08:14 作者: 可行 時間: 2025-3-22 12:21
Limitations of Doppler measurement of volume flow in adults with aortic stenosisigh prevalence of mitral regurgitation (83%) in this group. Finally, coexisting aortic insufficiency was present in over 80% of our patients and was more than trivial in 66%. In this situation, a measure of actual transaortic flow is needed since neither pulmonary artery flow nor left ventricular fi作者: 反饋 時間: 2025-3-22 15:08 作者: 反饋 時間: 2025-3-22 17:19 作者: blight 時間: 2025-3-23 01:12 作者: 調(diào)整 時間: 2025-3-23 04:33
https://doi.org/10.1007/978-3-642-46651-9ions thus appeared in the more open minded European literature. The Brandestini instrument remained a uniquely curious unit, and did not progress toward commercial availability. At about the same time, our Japanese colleagues were engaged in work toward production of a commercially available real ti作者: 字謎游戲 時間: 2025-3-23 06:19 作者: 寬大 時間: 2025-3-23 10:00 作者: 壓碎 時間: 2025-3-23 17:46
Main Goals and Proof Techniquesout its haemodynamics. These are only some of the instances in which imaging was limited in its ability to give a complete non-invasive assessment of cardiac disease. Most of these problems have subsequently been solved by the integration of continuous wave and pulsed Doppler into paediatric imaging作者: 粘 時間: 2025-3-23 18:16 作者: Allege 時間: 2025-3-24 01:06
Abstract Graphs and Set SystemsWith Doppler cardiography (Doppler) the velocity and direction of blood flow is measured. Consequently Doppler should be useful in diagnosing heart diseases mainly affecting these parameters. Valvular stenosis (increased velocities) and valvular regurgitation (reversed velocities) are the classical examples of such diseases.作者: myalgia 時間: 2025-3-24 04:29 作者: Canvas 時間: 2025-3-24 07:04
Color Doppler Flow Imaging978-94-009-4283-7Series ISSN 0166-9842 作者: 小故事 時間: 2025-3-24 11:19 作者: GOAT 時間: 2025-3-24 16:29
https://doi.org/10.1007/978-94-009-4283-7Bypass; congenital heart disease; echocardiography; heart; ultrasound作者: Keratin 時間: 2025-3-24 20:15 作者: alcoholism 時間: 2025-3-25 00:14
Simple and Efficient Programming with C#e noise which is added to the signal. The theoretical accuracy of any velocity measurement can be expressed using the Woodward’s relation: s. = k/(T. × R.), where s. is the variance of the velocity estimation, R the signal-to-noise ratio and T. the measurement duration. Technical problems are furthe作者: ventilate 時間: 2025-3-25 06:19
,Conclusion: Keepin’ on Keepin’ on,which was already formulated by Bernoulli, a Dutch born mathematician, in the 18th century, for the calculation of the orifice area. In their approach they estimated the blood flow velocity at the orifice by an invasive pressure drop measurement. The application of Bernoulli’s equation has received 作者: 白楊魚 時間: 2025-3-25 08:55
https://doi.org/10.1007/978-3-031-41115-1 volume flow than expected from the equation of continuity, but has only a negligible influence on the velocity in the core flow of the regurgitant jet..Inherent properties of the spectral analysis of the Doppler signal, in combination with a small core flow volume will create difficulties in distin作者: facilitate 時間: 2025-3-25 12:15 作者: 梯田 時間: 2025-3-25 17:38 作者: 誰在削木頭 時間: 2025-3-25 23:30
Comparisons and Computational Resultsraphy (2D-Doppler). At least in the United States we are still debating whether 2D-Doppler offers significant practical advantages over the ‘conventional’ pulsed and continuous wave Doppler techniques (V-mode*) in adult patients. The purpose of this review is to examine the advantages and limitation作者: 樂章 時間: 2025-3-26 00:07 作者: 急性 時間: 2025-3-26 07:42 作者: FLASK 時間: 2025-3-26 11:54
Definitions and Existence Theoremsctures from blood-filled cavities without using contrast material. However, no direct information on blood flow is obtained and the hemodynamic consequences of minimal structural and functional abnormalities cannot be assessed. This is most apparent for lesions, such as valvular insufficiency and in作者: occult 時間: 2025-3-26 15:24
https://doi.org/10.1007/978-3-540-75859-4methods for measuring stroke volume (SV) in adults with aortic stenosis undergoing catheterization. Doppler velocities and 2D echo images were recorded immediately post-cath, simultaneous with thermodilution (TD) cardiac output. Doppler stroke volume was calculated from vessel diameter and the integ作者: 比目魚 時間: 2025-3-26 20:32 作者: Supplement 時間: 2025-3-26 23:08 作者: 閃光你我 時間: 2025-3-27 02:04
Abstract Graphs and Set Systemstal defects can often be undertaken without angiocardiography. However in acyanotic lesions indications for surgery are often based not simply on the presence of the lesion but rather its haemodynamic effects such as the severity of obstruction, the pulmonary artery pressure or resistance, or the ma作者: 無瑕疵 時間: 2025-3-27 05:55
Assessment of the clinical value of continuous wave Doppler ultrasound in children with acyanotic cognitude of an intracardiac shunt. Some information on this can be obtained from M-mode echocardiography by assessing the chamber sizes, wall thickness and valve motion but more detailed information is frequently required making cardiac catheterisation mandatory in assessing the need for surgery.作者: Countermand 時間: 2025-3-27 10:42 作者: 咆哮 時間: 2025-3-27 14:34 作者: Mhc-Molecule 時間: 2025-3-27 20:29
Computer-aided analysis of Doppler echocardiogramsnter for report generation. There is an additional option of sending and retrieving data from the hospitals main database system. The system, analysis procedure and error sources in the different phases of the analysis procedure are discussed.作者: commune 時間: 2025-3-27 22:03
Two years clinical experience with color-coded real-time two-dimensional Doppler cardiography the new device. The authors’ group has confirmed the diagnostic effectiveness in acquired valvular disease [5, 6, 7], congenital heart disease [8, 9, 10], and aortic aneurysm [11]. Furthermore, an intraoperative use for various cardiovascular lesions has been found effective [12, 13].作者: 推遲 時間: 2025-3-28 05:42
Abstract Graphs and Set Systemsgnitude of an intracardiac shunt. Some information on this can be obtained from M-mode echocardiography by assessing the chamber sizes, wall thickness and valve motion but more detailed information is frequently required making cardiac catheterisation mandatory in assessing the need for surgery.作者: Arctic 時間: 2025-3-28 06:52 作者: ELATE 時間: 2025-3-28 10:32 作者: hieroglyphic 時間: 2025-3-28 15:57
Definitions and Existence Theoremsuences of minimal structural and functional abnormalities cannot be assessed. This is most apparent for lesions, such as valvular insufficiency and intracardiac shunts, which cannot be diagnosed by echocardiography alone with confidence.作者: theta-waves 時間: 2025-3-28 22:28
Main Goals and Proof Techniquesed with the aid of which malfunctions may be detected and assessed. This investigation deals with the use of this method as applied to functional assessment of mechanical and biological mitral valve prostheses.作者: PRISE 時間: 2025-3-29 02:44
Estimation of transvalvular pressure drops by Doppler echocardiography: the Bernoulli equation revis they estimated the blood flow velocity at the orifice by an invasive pressure drop measurement. The application of Bernoulli’s equation has received renewed interest because pressure drops across stenotic valves are now being estimated using non-invasive blood velocity measurements by Doppler echocardiography.作者: 溫室 時間: 2025-3-29 03:41
Factors influencing fluid velocity measurements in valvular regurgitationt..Inherent properties of the spectral analysis of the Doppler signal, in combination with a small core flow volume will create difficulties in distinguishing high regurgitant velocities from background noise.作者: 姑姑在炫耀 時間: 2025-3-29 07:51
Color-coded Doppler flow imaging: a major advance for non-invasive cardiology?uences of minimal structural and functional abnormalities cannot be assessed. This is most apparent for lesions, such as valvular insufficiency and intracardiac shunts, which cannot be diagnosed by echocardiography alone with confidence.作者: DENT 時間: 2025-3-29 12:18 作者: heart-murmur 時間: 2025-3-29 18:04 作者: ALTER 時間: 2025-3-29 22:29
Estimation of transvalvular pressure drops by Doppler echocardiography: the Bernoulli equation reviswhich was already formulated by Bernoulli, a Dutch born mathematician, in the 18th century, for the calculation of the orifice area. In their approach they estimated the blood flow velocity at the orifice by an invasive pressure drop measurement. The application of Bernoulli’s equation has received 作者: 不能妥協(xié) 時間: 2025-3-30 03:57 作者: 一起平行 時間: 2025-3-30 06:50 作者: DUST 時間: 2025-3-30 11:21 作者: 驕傲 時間: 2025-3-30 13:19
Two-dimensional Doppler flow mapping in adult cardiology: advantages and limitationsraphy (2D-Doppler). At least in the United States we are still debating whether 2D-Doppler offers significant practical advantages over the ‘conventional’ pulsed and continuous wave Doppler techniques (V-mode*) in adult patients. The purpose of this review is to examine the advantages and limitation作者: 迅速飛過 時間: 2025-3-30 19:41
