Results 61 to 70 of about 4,106,222 (239)

Repeatability of measurement of uterine artery pulsatility index using transvaginal color Doppler

open access: yes, 2001
Objective To assess the repeatability of measuring the pulsatility index of the uterine arteries using transvaginal color Doppler at 23 weeks of gestation.
To, M S   +3 more
core   +1 more source

Point‐Of‐Care Ultrasound for the Assessment of the Cerebroplacental Ratio in Near‐Term Pregnancies: An Agreement Study With Conventional Ultrasound

open access: yesJournal of Clinical Ultrasound, EarlyView.
In 80 singleton pregnancies at term, handheld point‐of‐care ultrasound (POCUS) was compared with conventional ultrasound for fetal Doppler assessment. Umbilical artery PI, middle cerebral artery PI, and cerebroplacental ratio showed agreement between devices. Between‐device variability was comparable to intra‐observer repeatability, supporting handheld
Ilenia Mappa   +5 more
wiley   +1 more source

Transcranial doppler and hematoma expansion in acute spontaneous primary intracerebral hemorrhage

open access: yesAnnals of Indian Academy of Neurology, 2019
Context: The data on the role of Transcranial Doppler (TCD) in the management of acute primary intracerebral hemorrhage (ICH) is meager. Aims: To study TCD variables associated with hematoma expansion in acute primary ICH.
Praveen Kesav   +4 more
doaj   +1 more source

Reproducibility of carotid artery pulsatility index

open access: yes, 2022
Access to thesis permanently restricted to Ball State community onlyCarotid Artery Pulsatility Index (PI) is a non-invasive method of assessing vascular resistance.
Parkhurst, Jordan
core  

Acute Effects of Smoking and Vaping on Markers of Vascular Function via Quantitative MRI

open access: yesJournal of Magnetic Resonance Imaging, EarlyView.
ABSTRACT Background E‐cigarettes contribute to endothelial dysfunction, a known cause of systemic atherosclerotic disease that cannot be adequately characterized by a single physiological parameter measured at a single vascular bed. Purpose/Hypothesis Quantify and compare acute effects of smoking or vaping with tobacco cigarettes (t‐cigs), nicotinized ...
Marianne Nabbout   +9 more
wiley   +1 more source

Improved Repeatability of the Estimation of Pulsatility of Inferior Vena Cava [PDF]

open access: yes, 2019
The inferior vena cava (IVC) shows variations of cross section over time (pulsatility) induced by different stimulations (e.g., breathing and heartbeats).
Giovinazzo T.   +11 more
core   +1 more source

Comparison of 3‐Dimensional Ultrasound and Computed Tomography for Imaging of Abdominal Aortic Aneurysms

open access: yesJournal of Ultrasound in Medicine, EarlyView.
Objectives Three‐dimensional ultrasound (3D US) is emerging as a novel imaging method for abdominal aortic aneurysms (AAAs) as it creates a low‐cost 3D AAA overview without harmful radiation and nephrotoxic contrast agents, as opposed to conventional imaging. 3D US can be used with a non‐nephrotoxic contrast agent (3D‐CEUS) for lumen delineation.
Rianne E. van Rijswijk   +5 more
wiley   +1 more source

Renal Doppler sonography as a non-invasive technique for early detection of reno-vascular changes in sickle cell disease in children

open access: yesEgyptian Pediatric Association Gazette, 2023
Objective Early identification of sickle renovascular changes via renal Doppler sonography among sickle cell disease patients to help in early diagnosis and interventions to prevent progression to end-stage renal disease.
Mona Hassan Eltagui   +6 more
doaj   +1 more source

Reference charts for umbilical Doppler pulsatility index in fetuses with isolated two-vessel cord

open access: yes, 2019
Purpose: To determine reference values for umbilical Doppler pulsatility index in fetuses with isolated two-vessel cord and to compare these values with standard umbilical Doppler pulsatility index curves from 23 to 40 gestational weeks.
Cataneo I.   +3 more
core   +1 more source

Scatter plot showing the correlation between mean middle cerebral artery pulsatility index (PI) and resistivity index (RI), and number of psychosomatic symptoms.

open access: yes, 2019
Scatter plot showing the correlation between mean middle cerebral artery pulsatility index (PI) and resistivity index (RI), and number of psychosomatic symptoms.
Bridget S. Ng (6180464)   +17 more
core   +1 more source

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