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searching for Cardiac cycle 47 found (137 total)

Region of interest (947 words) [view diff] exact match in snippet view article find links to article

may be defined on an image, perhaps during different phases of the cardiac cycle, for example, end-systole and end-diastole, for the purpose of assessing

Apex beat (659 words) [view diff] exact match in snippet view article find links to article

located on the endocardial surface of this chamber. This period of the cardiac cycle is called isovolumic contraction. Because the contraction starts near

Hemopump (887 words) [view diff] exact match in snippet view article find links to article

It can run at a constant speed, or two variable speeds during the cardiac cycle. Volume of the stroke, the rotating speed, or the pressure can all be

Zones of the lung (810 words) [view diff] exact match in snippet view article find links to article

resistance to blood flow and blood flow is continuous throughout the cardiac cycle. Flow is determined by the Ppa-Ppv difference (Ppa - Ppv), which is

Cardiogenic shock (1,967 words) [view diff] exact match in snippet view article find links to article

diastole (the resting phase of the cardiac cycle) and deflating during systole (the contracting phase of the cardiac cycle). Intra-aortic balloon pumps do

Calcium buffering (614 words) [view diff] exact match in snippet view article find links to article

of the calcium added to the cytosol of a cardiomyocyte during each cardiac cycle becomes bound to calcium buffers, creating a relatively small change

Cerebrospinal fluid flow MRI (2,125 words) [view diff] exact match in snippet view article find links to article

Cerebrospinal fluid that corresponds to vascular pulsations from mostly the cardiac cycle of the choroid plexus. Bulk transport of CSF, characterized by CSF circulation

George Ralph Mines (379 words) [view diff] exact match in snippet view article find links to article

discovered the vulnerable period of the heart: the time during the cardiac cycle when a single stimulus can induce ventricular fibrillation. On November

Rhythm interpretation (861 words) [view diff] exact match in snippet view article find links to article

components of a rhythm strip, the PQRST sequence, which represents one cardiac cycle, the ventricular rate, which is the rate at which the ventricles contract

Short QT syndrome (2,508 words) [view diff] exact match in snippet view article find links to article

heart wall than in others. This means that at certain points in the cardiac cycle, some layers of the heart wall will have fully repolarised, and are

External counterpulsation (1,045 words) [view diff] exact match in snippet view article find links to article

simultaneously with diastole which happens to be the time during the cardiac cycle in which coronary perfusion occurs. So, by increasing the coronary perfusion

Instantaneous wave-free ratio (2,430 words) [view diff] exact match in snippet view article find links to article

pressure and flow are linearly related as compared to the rest of the cardiac cycle. When stenoses are flow limiting, Pd and Pa pressures over the wave-free

Strain rate imaging (3,328 words) [view diff] exact match in snippet view article find links to article

"deformation" refers to the myocardium changing shape and dimensions during the cardiac cycle. If there is myocardial ischemia, or there has been a myocardial infarction

Pneumomediastinum (1,009 words) [view diff] exact match in snippet view article find links to article

often recognized on auscultation by a "crunching" sound timed with the cardiac cycle (Hamman's crunch). Pneumomediastinum may also present with symptoms

3D ultrasound (1,412 words) [view diff] exact match in snippet view article find links to article

obtain quantitative measurements such as chamber volume during the cardiac cycle. It also provides other useful information, for example, tracking the

Impeller (1,291 words) [view diff] exact match in snippet view article find links to article

Chang, C. J.; Shyu, J. J.; Jan, G. J. (2001). "Physiologic analysis of cardiac cycle in an implantable impeller centrifugal left ventricular assist device"

Cardiac magnetic resonance imaging perfusion (1,412 words) [view diff] exact match in snippet view article find links to article

Typically, 3 short axis slices, each of 10mm thickness, are acquired per cardiac cycle, at the basal, mid papillary and apical levels of the left ventricle

Gating signal (435 words) [view diff] exact match in snippet view article find links to article

synchronize the data acquisition process with the patient's respiratory or cardiac cycle. By acquiring data only during specific phases of the cycle, image artifacts

Electrical cardiometry (973 words) [view diff] exact match in snippet view article find links to article

respiratory cycle, and ΔZC are the changes of impedance due to the cardiac cycle. ΔZR is considered an artifact akin to the estimation of stroke volume

TPM1 (1,467 words) [view diff] exact match in snippet view article find links to article

by McKillop and Geeves, which describes the positions of Tm during a cardiac cycle. The blocked (B) state occurs in diastole when intracellular calcium

Ventricular escape beat (742 words) [view diff] exact match in snippet view article find links to article

The first 2.5 seconds show a normal cardiac cycle. This is followed by a period of delayed sinus activity which initiates a takeover response by the ventricular

Hs and Ts (1,624 words) [view diff] exact match in snippet view article find links to article

also occur after a hard blow to the chest at a precise moment in the cardiac cycle, which is known as commotio cordis. Other traumatic events such as high

Single-photon emission computed tomography (2,663 words) [view diff] exact match in snippet view article find links to article

thickness, and contractility of the myocardium during various parts of the cardiac cycle, and also to allow calculation of left ventricular ejection fraction

Auguste Chauveau (338 words) [view diff] exact match in snippet view article find links to article

he performed important studies involving the different phases of the cardiac cycle and intracardiac pressure. In 1867 he made decisive experiments on the

Affective computing (6,334 words) [view diff] exact match in snippet view article find links to article

blood flow through the extremities. The peaks of the waves indicate a cardiac cycle where the heart has pumped blood to the extremities. If the subject

Cerebrospinal fluid (4,578 words) [view diff] exact match in snippet view article find links to article

dispute this, posing that there is no unidirectional CSF circulation, but cardiac cycle-dependent bi-directional systolic-diastolic to-and-from cranio-spinal

Ocular tonometry (2,295 words) [view diff] exact match in snippet view article find links to article

device also measures the variation in pressure that occurs with the cardiac cycle. Electronic indentation tonometers are modified Mackay-Marg tonometers

Cardiac magnetic resonance imaging (3,422 words) [view diff] exact match in snippet view article find links to article

gradients in 3 orthogonal planes within a 3D volume throughout the cardiac cycle. Such 4D imaging encodes the velocity of flowing blood at each voxel

Tessys method (1,206 words) [view diff] exact match in snippet view article find links to article

risks of nerve injury or thrombosis are significantly reduced; less cardiac cycle stress Immediate pain relief directly after the surgery procedure in

Mary Anne Frey (796 words) [view diff] case mismatch in snippet view article find links to article

Fall/Winter 2014". Issuu. Retrieved August 29, 2018. "LEARNING THE CARDIAC CYCLE: SIMULTANEOUS OBSERVATIONS OF ELECTRICAL AND MECHANICAL EVENTS" (PDF)

Renee Liang (1,119 words) [view diff] case mismatch in snippet view article find links to article

Chinglish (Soapbox Press, 2008) Banana (Monster Fish Publishing, 2008) Cardiac Cycle, illustrated by Cat Auburn (Monster Fish Publishing, 2008) Towards the

Muscle contraction (7,394 words) [view diff] exact match in snippet view article find links to article

heart relaxes, allowing the ventricles to fill with blood and begin the cardiac cycle again. In annelids such as earthworms and leeches, circular and longitudinal

Cardiac arrest (13,655 words) [view diff] exact match in snippet view article find links to article

patient so that providers can analyze the electrical activity of the cardiac cycle and use this information to guide the management efforts. EKG readings

Troponin C type 1 (4,609 words) [view diff] exact match in snippet view article find links to article

is believed to move as a unit along with tropomyosin throughout the cardiac cycle. In the low calcium environment present during diastole (~100 nM), tropomyosin

Glaucoma (11,198 words) [view diff] exact match in snippet view article find links to article

neovascular glaucoma. The color change of the Doppler image in the central retinal artery during the cardiac cycle indicates arterial flow reversal.

Brugada syndrome (5,879 words) [view diff] exact match in snippet view article find links to article

these differences are increased, creating a brief period within each cardiac cycle when current flows from the endocardium to the epicardium creating the

Pulmonary hypertension (8,891 words) [view diff] exact match in snippet view article find links to article

during physical activity. During the end-systolic volume phase of the cardiac cycle, the Gaussian curvature and the mean curvature of right ventricular

Amazon Alexa (10,219 words) [view diff] exact match in snippet view article find links to article

woman reported that when she asked Alexa for information about the cardiac cycle, it asked her to stab herself in the heart to stop human overpopulation

Francisco Torrent-Guasp (1,391 words) [view diff] exact match in snippet view article find links to article

This motivated him to write his first monograph El ciclo cardiaco (The cardiac cycle) After graduation, he started working as a family doctor in Dénia, doing

Heart failure with preserved ejection fraction (7,080 words) [view diff] exact match in snippet view article find links to article

Wiggers diagram, depicting the cardiac cycle. Two complete cycles are illustrated.

Acute cardiac unloading (1,029 words) [view diff] exact match in snippet view article find links to article

heart. The PV loop characterizes the events occurring during a single cardiac cycle (a single heartbeat). The total area bound by the PV loop is the mechanical

Una Martin (1,134 words) [view diff] exact match in snippet view article find links to article

Effects of reaction time components, stimulus modality, and phase of the cardiac cycle". Psychophysiology. 44 (3): 459–468. doi:10.1111/j.1469-8986.2007.00521

Cardiac rhythm problems during spaceflight (3,823 words) [view diff] exact match in snippet view article find links to article

Malik, M (October 1999). "Relation of ventricular repolarization to cardiac cycle length in normal subjects, hypertrophic cardiomyopathy, and patients

Gdańsk University of Technology (9,370 words) [view diff] exact match in snippet view article find links to article

electrocardiographic and impedance signal which contain an information about the cardiac cycle. PathMon makes possible simultaneous measurement of various vital signs

GCaMP (3,065 words) [view diff] exact match in snippet view article find links to article

GCaMP zebrafish line to image cardiomyocyte activation throughout the cardiac cycle; from their results, they characterized four developmental stages of

Hemodynamics of the aorta (2,055 words) [view diff] exact match in snippet view article find links to article

cardiovascular disease. The mean velocity in the aorta varies over the cardiac cycle. During systole the mean velocity rises to a peak, then it falls during

Wave intensity analysis (2,083 words) [view diff] exact match in snippet view article find links to article

{dP}{dU}}\right|_{initial\;systole}} In cases where there is no period during the cardiac cycle when it is obvious that forward waves dominate another method, generally