perfusion index

USAGE SUMMARY

The phrase "perfusion index" is correct and usable in written English.
It is typically used in medical contexts to refer to a numerical value that indicates the blood flow to a specific area of tissue. Example: "The patient's perfusion index was measured to assess the effectiveness of the treatment."

✓ Grammatically correct

Science

Human-verified examples from authoritative sources

Exact Expressions

60 human-written examples

Though the feature could track many kinds of niche health data — like the amount of inhaler use, or "Peripheral Perfusion Index" — it couldn't be used for reproductive health.

Independent

perfusion index.

Intensive Care Medicine Experimental

A perfusion index (PI) is obtained by calculating the ratio RBV/mTT.

Intensive Care Medicine Experimental

The present investigation was designed to study the effect of blood transfusion on cardiac output and perfusion index.

Early Human Development

To evaluate perfusion index (PI) as a determinant of regional nerve block success following sciatic nerve blockade with bupivacaine in dogs undergoing stifle surgery.

Veterinary Anaesthesia and Analgesia

The G-CSF + HGF group had a higher laser Doppler blood perfusion index, higher microvessel density, and a lower incidence of hind limb necrosis than the other groups.

Journal of Molecular and Cellular Cardiology

The correlation and mean difference between SpHb and arterial Hb showed good correlation before CPB when perfusion index was over 1.4.

Intensive Care Medicine Experimental

For example, measurement of the hepatic perfusion index at CT has been proposed as a biomarker for the detection of occult liver metastases from colorectal cancer.

Insights into Imaging

Conclusion The results of this preliminary study are that the perfusion index using pulse oximetry seems to accurately reflect changes in CI during PLR test and volume expansion.

Annals of Intensive Care

The "Pleth Variability Index" (PVI) is an automated measure of the dynamic change in the "Perfusion Index" that occurs during a respiratory cycle (Masimo Corporation, Irvine, CA).

Annals of Intensive Care

The "Perfusion Index" is the infrared pulsatile signal indexed against the nonpulsatile signal and reflects the amplitude of the pulse oximeter waveform.

Annals of Intensive Care

Expert writing Tips

Best practice

When discussing "perfusion index", specify the location or tissue being measured to provide context and improve clarity.

Common error

Avoid using "perfusion index" interchangeably with terms like cardiac output or blood pressure. While related, "perfusion index" specifically reflects peripheral blood flow and is distinct from overall cardiovascular function.

Linguistic Context

The phrase "perfusion index" functions as a noun phrase, typically serving as the subject or object of a sentence. It denotes a measurable value indicating the state of blood flow to a specific tissue or region. As Ludwig AI confirms, it is a correctly used phrase.

Expression frequency: Very common

Frequent in

Science

100%

Less common in

News & Media

0%

Formal & Business

0%

Academia

0%

Ludwig's WRAP-UP

The term "perfusion index" is a grammatically sound and frequently used noun phrase, particularly within scientific and medical contexts. As Ludwig AI confirms, it's employed to quantitatively assess blood flow, aiding in diagnosis and treatment evaluation. Primarily formal and scientific in register, its usage patterns strongly favor scientific sources. Common errors involve confusing it with broader hemodynamic parameters. When using "perfusion index", specifying the location or tissue is vital for clarity.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

blood flow index

A more general term, emphasizing the flow of blood.

tissue perfusion measurement

Highlights the measurement of blood flow in tissues.

perfusion rate

Focuses on the speed of blood flow rather than the index itself.

capillary perfusion

Specifically refers to blood flow in capillaries.

microvascular perfusion

Focuses on blood flow in the smallest blood vessels.

perfusion assessment

Describes the evaluation process of blood flow.

hemodynamic index

A broader term referring to an index related to blood flow dynamics.

regional blood flow

Highlights blood flow in a specific area.

laser doppler flowmetry

Refers to a specific method for measuring blood flow.

cutaneous blood flow

Describes blood flow in the skin.

FAQs

How is "perfusion index" used in medical contexts?

The "perfusion index" is used to assess peripheral blood flow, often in critical care settings, to monitor tissue perfusion and response to treatments. It helps in evaluating conditions like sepsis and guiding fluid resuscitation.

What does a low "perfusion index" indicate?

A low "perfusion index" typically indicates poor peripheral blood flow, which may be due to vasoconstriction, hypovolemia, or other factors affecting circulation. It can signal the need for interventions to improve tissue oxygenation.

How does "perfusion index" differ from pulse oximetry?

While both are measured using pulse oximetry, pulse oximetry primarily measures oxygen saturation (SpO2), while "perfusion index" (PI) reflects the strength of the pulsatile signal, indicating peripheral blood flow. PI can be low even with normal SpO2.

What factors can affect the accuracy of "perfusion index" measurements?

Factors such as patient movement, ambient light, probe placement, and conditions like edema or vasoconstriction can affect the accuracy of "perfusion index" measurements. Proper technique and consideration of these factors are essential.