Volumetric blood flow measurement with color Doppler ultrasonography: the importance of visual clues

Fillinger, Mark F.; Schwartz, R. A.

doi:10.7863/jum.1993.12.3.123

Cited by 25 publications

(8 citation statements)

References 3 publications

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“…In some subjects, this might create a systematic problem with increasing flow values. Doppler ultrasound quantifies volumetric blood flow with a reasonable degree of accuracy only under laminar flow conditions, not under turbulent flow conditions . Another possible problem is that the vessel diameter was measured in peak systole only and not averaged over the entire cardiac cycle.…”

Section: Discussionmentioning

confidence: 99%

A pilot study of the relationship between Doppler‐estimated carotid and brachial artery flow and cardiac index

et al. 2015

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SummaryWe measured carotid and brachial artery blood flow by Doppler ultrasound in 11 human volunteers, and related these to cardiac index and to each other . There was a moderate to good correlation between right-and left-sided flows (brachial: q = 0.45; carotid: q = 0.567). Brachial and carotid flow had no or a negative correlation with cardiac index (right brachial: q = À0.145, left brachial: q = À0.349; right carotid: q = À0.376, left carotid: q = À0.285). In contrast to some previous studies, we found that Doppler-estimated peripheral arterial blood flows only show a weak correlation with cardiac index and cannot be used to provide non-invasive estimates of cardiac index in man.

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Section: Discussionmentioning

confidence: 99%

A pilot study of the relationship between Doppler‐estimated carotid and brachial artery flow and cardiac index

et al. 2015

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“…Morphometric analysis was not possible, due to the small diameter and poorly visible vessel wall, as well as the uncertainty of measurements when based only on color Doppler signal . No previous studies have evaluated the blood flow characteristics of MXA and MMA .…”

Section: Discussionmentioning

confidence: 99%

“…4,16,17 Morphometric analysis was not possible, due to the small diameter and poorly visible vessel wall, as well as the uncertainty of measurements when based only on color Doppler signal. 1,18 No previous studies have evaluated the blood flow characteristics of MXA and MMA. 4 As anticipated, the arteries in question demonstrate characteristics that are different from both the extracranial and intracranial cerebral blood vessels.…”

Section: Discussionmentioning

confidence: 99%

Ultrasonographic assessment of the maxillary artery and middle meningeal artery in the infratemporal fossa

Lepic

Lepić

Mandić‐Rajčević

2019

J of Clinical Ultrasound

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Purpose To investigate with Doppler ultrasonography the maxillary and middle meningeal arteries in the infratemporal fossa, and describe their hemodynamic characteristics. Methods We included 24 female and 11 male volunteers without vascular diseases, with a median age of 43 years. We used the acoustic window, enlarged by subjects half‐opening their mouth, located below the zygomatic arch, in front of temporo‐mandibular joint, to reach the maxillary and middle meningeal arteries. Results In the 35 subjects, 112 arteries were visualized successfully: 60 maxillary (85.7%), and 52 middle meningeal arteries (74.3%), at a depth of 2.40 and 2.50 cm, respectively. Their blood flow was directed anteriorly and away from the probe. While all the measured hemodynamic characteristics differed significantly between the maxillary and the middle meningeal artery (P < 0.001), there was no significant difference between male and female subjects, nor between the left or the right side. Conclusions The maxillary and middle meningeal arteries can be insonated in the infratemporal fossa through the easily accessible acoustic window below the zygomatic arch, when the patient holds his mouth half open. They can be differentiated by their ultrasonographic characteristics and blood flow features.

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“…Initial investigations in the 1970s 1 and the early 1980s 2,3 and the validation of the method in animal experiments by comparing it with invasive perfusion measurements or in vitro investigations [4][5][6][7][8][9] led to recommendations for clinical application of volumetric flow measurements.…”

Section: Discussionmentioning

confidence: 99%

Color Doppler sonographic determination of renal blood flow in healthy children.

Scholbach

1999

Journal of Ultrasound in Medicine

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he determination of renal blood flow is of great interest in many clinical settings that alter renal function, such as acute or chronic renal failure, inflammation, scarring, swelling, trauma, operations, and other conditions. Renal perfusion is the necessary prerequisite of renal function. Depression of renal perfusion will lead to loss of function when the functional reserve of the kidney has become exhausted. Until now pediatricians have been dependent on relatively insensitive indicators of renal function, such as creatinine or urea concentrations, or has had to carry out time-consuming or expensive procedures like tests of clearances or nuclear medical investigations. A bedside method for evaluating renal perfusion is therefore desirable.Color Doppler sonography offers the possibility of measuring renal perfusion parameters even in small or chronically ill children. Only semiquantitative techniques have been established. The most commonly used are RI and PI. These indices reflect relationships of blood flow velocities at various points in one cardiac cycle but do not give any information about the volume of blood passing through the kidneys. They were the first parameters to describe the spectral analysis of the renal Doppler sonographic The volumetric measurement of the real renal perfusion is of interest in many clinical situations. It promises better understanding of renal function and development in healthy children and in children with acute or chronic renal failure, inflammation of any type, scarring, swelling, trauma, operations, and other conditions. Until now only scintigraphic techniques allowed measurement of the renal plasma flow in clinical practice. With color Doppler sonography all relevant data to calculate the volume of blood that passes through the kidney in a certain time can be measured. The aim of this paper is to investigate the utility of color Doppler sonography in describing renal perfusion in 63 healthy children in four separate age groups. It can be shown that the perfusion volume related to the body surface area is constant throughout childhood. Its mean value is 383 ml/min ⋅ m 2 .The results of the new technique of color Doppler sonographic volumetric determination of renal blood flow are then compared in 21 pediatric patients with the results of scintigraphic determination of the renal perfusion by 123 I-hippurate clearance. This way a significant correlation of both methods can be demonstrated.

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Volumetric blood flow measurement with color Doppler ultrasonography: the importance of visual clues

Cited by 25 publications

References 3 publications

A pilot study of the relationship between Doppler‐estimated carotid and brachial artery flow and cardiac index

A pilot study of the relationship between Doppler‐estimated carotid and brachial artery flow and cardiac index

Ultrasonographic assessment of the maxillary artery and middle meningeal artery in the infratemporal fossa

Color Doppler sonographic determination of renal blood flow in healthy children.

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