Brachial artery blood flow by vascular ultrasound in education.
Adv Physiol Educ
; 46(3): 498-506, 2022 Sep 01.
Article
en En
| MEDLINE
| ID: mdl-35796466
ABSTRACT
There is extensive and increasing use of ultrasound in medical care and scientific research, so it is important that the technique, indication, and interpretation of ultrasound investigations are included in medical and biological education. Applications of ultrasound in medical care and education employ not only noninvasive imaging of structure but also the evaluation of organ function. Vascular ultrasound is one such application that has been hitherto relatively neglected in physiology education. The techniques of vascular ultrasound and the physiological regulation of human limb blood flow are reviewed to inform students and curriculum designers. Emphasis is placed on the value of converting velocity measurement by ultrasound to volumetric flow and on the mechanisms involved in rapidly changing flows with interventions. Live collection of real data by ultrasound can show macrovascular and microvascular features of vascular physiology. Macrovascular features include imaging and flow velocity profiles. Microvascular perfusion studies show conductance changes with interventions such as exercise and ischemia. Vascular ultrasound offers exciting opportunities for undergraduate research projects using human subjects. The literature is interesting and, though complex, offers excellent educational experience, with scope for the development of critical thinking and meaningful original research.NEW & NOTEWORTHY Ultrasound imaging has emergent prominence in clinical investigation and education. Vascular ultrasound also evaluates function. Simple methods are described that enable the application of basic ultrasound principles to the measurement of velocity and, importantly, to calculate absolute volumetric blood flow. These methods should be useful in undergraduate and graduate education, with application in clinical practice and research.
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Texto completo:
1
Base de datos:
MEDLINE
Asunto principal:
Arteria Braquial
Tipo de estudio:
Diagnostic_studies
Idioma:
En
Revista:
Adv Physiol Educ
Asunto de la revista:
EDUCACAO
/
FISIOLOGIA
Año:
2022
Tipo del documento:
Article