18 träffar

ArticleProcedurer
Ankle-brachial index (ABI)

…the dorsum of the foot lateral to the extensor hallucis longus tendon. Measure in the same way as on the arm. 4. Posterior tibial artery —…

ArticleEchocardiography
The ultrasound transducer

…waves. The transducer is held with one hand and its position and angle are adjusted to send ultrasound waves through structures to be visualized. Ultrasound…

ArticleProcedurer
Arterial line

…an angle of 30–45 degrees , directed proximally along the course of the artery. 4. When pulsatile blood appears in the hub: lower the angle…

ArticleProcedurer
Casting and immobilisation

Procedurer A cast should hold the fracture still and do nothing else. The two ways in which casting harms the patient are that it is…

ArticleCardiology
Coronary Anomalies and Myocardial Bridging

…a slit like orifice, a high coronary origin, acute angle take off, and an intramural course. An anomalous left coronary artery is less common but…

ArticleEchocardiography
Artifacts in ultrasound imaging

…Depending on the difference in acoustic impedance between the tissues, the angle of the ultrasound wave may be altered. This is referred to as refraction …

ArticleEchocardiography
Doppler effect and Doppler echocardiography

…the ultrasound velocity in the tissue (c) and the cosine of the angle between the direction of blood flow and the reflected ultrasound wave (cos…

ArticleEchocardiography
Hemodynamic principles and calculations

…the ultrasound velocity in the tissue (c) and the cosine of the angle between the direction of blood flow and the reflected ultrasound wave (cos…