Perfusion

perfusedperfusetissue perfusionblood flowperfusingperfusion pressurearterial perfusionarterial supplyblood circulationblood flow and oxygen supply
Perfusion is the passage of fluid through the circulatory system or lymphatic system to an organ or a tissue, usually referring to the delivery of blood to a capillary bed in tissue.wikipedia
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Ischemia

ischemicischaemiaischaemic
Poor perfusion (malperfusion), that is, ischemia, causes health problems, as seen in cardiovascular disease, including coronary artery disease, cerebrovascular disease, peripheral artery disease, and many other conditions.
Ischemia can be partial (poor perfusion) or total.

Blood

human bloodhematologicalblood-forming
Perfusion is the passage of fluid through the circulatory system or lymphatic system to an organ or a tissue, usually referring to the delivery of blood to a capillary bed in tissue.
Shock is the ineffective perfusion of tissues, and can be caused by a variety of conditions including blood loss, infection, poor cardiac output.

Cardiac output

cardiac inputoutputoutput of the heart
In equations, the symbol Q is sometimes used to represent perfusion when referring to cardiac output.
Because cardiac output is related to the quantity of blood delivered to various parts of the body, it is an important indicator of how efficiently the heart can meet the body's demands for perfusion.

Skin

cutaneousskin cellanimal skin
The most common methods include evaluating a body's skin color, temperature, condition (dry/soft/firm/swollen/sunken/etc), and capillary refill.
3) Thermoregulation: eccrine (sweat) glands and dilated blood vessels (increased superficial perfusion) aid heat loss, while constricted vessels greatly reduce cutaneous blood flow and conserve heat. Erector pili muscles in mammals adjust the angle of hair shafts to change the degree of insulation provided by hair or fur.

Myocardial perfusion imaging

myocardial imagingmyocardial perfusionmyocardial perfusion scan
99m Tc labelled Tetrofosmin and Sestamibi for myocardial perfusion imaging with SPECT
The diagnostic information is generated by provoking controlled regional ischemia in the heart with variable perfusion.

Arterial spin labelling

arterial spin labelingArterial spin labeling MRI
The other category is based on arterial spin labelling (ASL), where arterial blood is magnetically tagged before it enters into the tissue being examined and the amount of labelling that is measured and compared to a control recording obtained without spin labelling.
Arterial spin labeling (ASL), also known as arterial spin tagging, is a magnetic resonance imaging method for measuring perfusion using water already in the subject as tracers by setting and tracking magnetic spin.

Rubidium-82 chloride

82 Rb-chlorideCardioGen-82radioactive isotope
82 Rb-chloride for measuring myocardial perfusion with PET (absolute quantification is possible)
It is rapidly taken up by heart muscle cells, and therefore can be used to identify regions of heart muscle that are receiving poor blood flow in a technique called PET perfusion imaging.

Positron emission tomography

PETPET scanPET scans
Perfusion of various tissues can be readily measured in vivo with nuclear medicine methods which are mainly positron emission tomography (PET) and single photon emission computed tomography (SPECT).
This limitation restricts clinical PET primarily to the use of tracers labelled with fluorine-18, which has a half-life of 110 minutes and can be transported a reasonable distance before use, or to rubidium-82 (used as rubidium-82 chloride) with a half-life of 1.27 minutes, which is created in a portable generator and is used for myocardial perfusion studies.

Cerebral circulation

cerebral blood flowblood flow to the braincerebral vasculature
99m Tc labelled HMPAO and ECD for brain perfusion (rCBF) studied with SPECT
This equates to an average perfusion of 50 to 54 millilitres of blood per 100 grams of brain tissue per minute.

Circulatory system

cardiovascularcirculationcardiovascular system
Perfusion is the passage of fluid through the circulatory system or lymphatic system to an organ or a tissue, usually referring to the delivery of blood to a capillary bed in tissue.

Lymphatic system

lymphoidlymphoid tissuelymphatic
Perfusion is the passage of fluid through the circulatory system or lymphatic system to an organ or a tissue, usually referring to the delivery of blood to a capillary bed in tissue.

Organ (anatomy)

organorgansviscera
Perfusion is the passage of fluid through the circulatory system or lymphatic system to an organ or a tissue, usually referring to the delivery of blood to a capillary bed in tissue.

Tissue (biology)

tissuetissuesbiological tissue
Perfusion is the passage of fluid through the circulatory system or lymphatic system to an organ or a tissue, usually referring to the delivery of blood to a capillary bed in tissue.

Volumetric flow rate

flow rateflowvolumetric flow
Perfusion is measured as the rate at which blood is delivered to tissue, or volume of blood per unit time (blood flow) per unit tissue mass. The SI unit is m 3 /(s·kg), although for human organs perfusion is typically reported in ml/min/g.

International System of Units

SISI unitsSI unit
Perfusion is measured as the rate at which blood is delivered to tissue, or volume of blood per unit time (blood flow) per unit tissue mass. The SI unit is m 3 /(s·kg), although for human organs perfusion is typically reported in ml/min/g.

Health

human healthwellnessphysical health
All animal tissues require an adequate blood supply for health and life.

Life

livinglife on Earthbiota
All animal tissues require an adequate blood supply for health and life.

Cardiovascular disease

heart diseasecardiac diseaseheart condition
Poor perfusion (malperfusion), that is, ischemia, causes health problems, as seen in cardiovascular disease, including coronary artery disease, cerebrovascular disease, peripheral artery disease, and many other conditions.

Coronary artery disease

coronary heart diseaseischemic heart diseaseischaemic heart disease
Poor perfusion (malperfusion), that is, ischemia, causes health problems, as seen in cardiovascular disease, including coronary artery disease, cerebrovascular disease, peripheral artery disease, and many other conditions.

Cerebrovascular disease

cerebrovascularcerebrovascular diseasescerebrovascular disorders
Poor perfusion (malperfusion), that is, ischemia, causes health problems, as seen in cardiovascular disease, including coronary artery disease, cerebrovascular disease, peripheral artery disease, and many other conditions.

Peripheral artery disease

peripheral vascular diseaseperipheral arterial diseasearterial insufficiency
Poor perfusion (malperfusion), that is, ischemia, causes health problems, as seen in cardiovascular disease, including coronary artery disease, cerebrovascular disease, peripheral artery disease, and many other conditions.

Medicine

medicalmedical sciencemedicinal
Tests verifying that adequate perfusion exists are a part of a patient's assessment process that are performed by medical or emergency personnel.

Capillary refill

capillary refill timecapillary filling timecapillary refilling time
The most common methods include evaluating a body's skin color, temperature, condition (dry/soft/firm/swollen/sunken/etc), and capillary refill.

Cardiothoracic surgery

cardiothoracic surgeoncardiac surgeonthoracic surgery
During major surgery, especially cardiothoracic surgery, perfusion must be maintained and managed by the health professionals involved, rather than left to the body's homeostasis alone.

Health professional

health care providerhealthcare professionalshealth professionals
During major surgery, especially cardiothoracic surgery, perfusion must be maintained and managed by the health professionals involved, rather than left to the body's homeostasis alone.