Results 1 to 10 of about 1,176,692 (381)

Flexible Doppler ultrasound device for the monitoring of blood flow velocity. [PDF]

Sci Adv, 2021
Flexible, angled transducer arrays offer direct blood flow measurements.
Wang F, Jin P, Feng Y, Fu J, Wang P, Liu X, Zhang Y, Ma Y, Yang Y, Yang A, Feng X.   +10 more
europepmc   +2 more sources

Novel physiological analysis using blood flow velocity for colonic polyps: Pilot study [PDF]

Endoscopy International Open
Real-time visualization of red blood cell flow inside subepithelial microvessels is performed with magnifying endoscopy. However, microvascular blood flow velocity in the colorectum has not been investigated.
Eiji Kamba, Takashi Murakami, Naoki Tsugawa, Kei Nomura, Keiichi Haga, Yoichi Akazawa, Hirofumi Fukushima, Hiroya Ueyama, Kenshi Matsumoto, Tomoyoshi Shibuya, Takeshi Terai, Takashi Yao, Akihito Nagahara   +12 more
doaj   +2 more sources

Daily rhythm of cerebral blood flow velocity

Journal of Circadian Rhythms, 2005
Background CBFV (cerebral blood flow velocity) is lower in the morning than in the afternoon and evening. Two hypotheses have been proposed to explain the time of day changes in CBFV: 1) CBFV changes are due to sleep-associated processes or 2) time of ...
Spielman Arthur J, Conroy Deirdre A, Scott Rebecca Q   +2 more
doaj   +6 more sources

Excess pressure as an analogue of blood flow velocity. [PDF]

J Hypertens, 2021
Introduction: Derivation of blood flow velocity from a blood pressure waveform is a novel technique, which could have potential clinical importance. Excess pressure, calculated from the blood pressure waveform via the reservoir-excess pressure model, is purported to be an analogue of blood flow velocity but this has never been ...
Armstrong MK, Schultz MG, Hughes AD, Picone DS, Black JA, Dwyer N, Roberts-Thomson P, Sharman JE.   +7 more
europepmc   +7 more sources

OpenBloodFlow: A User-Friendly OpenCV-Based Software Package for Blood Flow Velocity and Blood Cell Count Measurement for Fish Embryos [PDF]

Biology, 2022
The transparent appearance of fish embryos provides an excellent assessment feature for observing cardiovascular function in vivo. Previously, methods to conduct vascular function assessment were based on measuring blood-flow velocity using third-party ...
Ali Farhan, Ferry Saputra, Michael Edbert Suryanto, Fahad Humayun, Roi Martin B. Pajimna, Ross D. Vasquez, Marri Jmelou M. Roldan, Gilbert Audira, Hong-Thih Lai, Yu-Heng Lai, Chung-Der Hsiao   +10 more
doaj   +2 more sources

Atherosclerosis and blood flow velocity

The Journal of Thoracic and Cardiovascular Surgery, 1989
Megumi Mathison
openalex   +3 more sources

STUDIES ON THE VELOCITY OF BLOOD FLOW [PDF]

Journal of Clinical Investigation, 1930
Herrman L. Blumgart, Samuel L. Gargill, D. Rourke Gilligan   +2 more
  +12 more sources

Diagnostics of arterial vessels of athletes using Doppler ultrasound measurement [PDF]

Известия Саратовского университета. Новая серия Серия: Физика, 2022
Objectives: The volumetric blood flow of arterial vessels of athletes with a high sports category was studied using the Doppler ultrasound measurement. Methods: Two groups of volunteers were examined: group I consisted of unsportsmanlike volunteers who ...
Skripal, Anatoly Vladimirovich, Fomin, Andrey Vladimirovich, Bakhmetyev, Artem Sergeevich, Brilenok, Nailya Bulatovna, Sagaidachnyi, Andrey Aleksandrovich, Dobdin, Sergey Yur'evich, Tikhonova, Antonina Sergeevna   +6 more
doaj   +1 more source

Interrelation between pulse wave forms in the peripheral arteries registered by methods of impedance rheography and ultrasonic dopplerography [PDF]

Известия Саратовского университета. Новая серия Серия: Физика, 2023
Background and Objectives: Impedance plethysmography and Doppler ultrasound, in most cases, are considered as independent methods for analyzing hemodynamics.
Zaletov, Ivan Sergeevich, Sagaidachnyi, Andrey Aleksandrovich, Skripal, Anatoly Vladimirovich, Klochkov , Viktor Alexandrovich, Mayskov, Dmitriy Igorevich, Fomin, Andrey Vladimirovich   +5 more
doaj   +1 more source

Numerical analysis of blood flow in abdominal aortic aneurysm using finite volume method

Desimal, 2022
There is a deadly cardiovascular disease that can cause swelling of the Abdominal Aorta. This disease is known as Abdominal Aortic Aneurysm (AAA). AAA is believed to be a degenerative process caused by genetic factors, gender, body weight, and age ...
Arif Fatahillah, Azza Liarista Anggraini, Susi Setiawani   +2 more
doaj   +1 more source