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Left Ventricular Peak Velocity, Maximal Systolic and Diastolic — Doppler

Published: August 9, 2026Updated: August 16, 2026

A Doppler ultrasound measurement of blood-flow velocity through the left ventricle during systole and diastole.

Quick summary

["This test uses sound waves to assess left-ventricular blood flow during the heart's pumping and filling phases."]

Medically reviewed by WellAlly Editorial TeamLast reviewed August 16, 2026Editorial policy

Key facts at a glance

LOINC
29458-7
Short code
PV-LL Vmax sys/dias DOP.der
Synonyms
PV-LL Vmax sys/dias DOP.der
Category
liver
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
us-doppler-derived
Specimen volume
5 mL
Stability
Room temperature: 4h, Refrigerated: 24h, Frozen: 7d
Hemolysis max
500
Lipemia max
1000
Icterus max
500
TAT
4–24 hours
Order
routine

What is this test?

This is a Doppler ultrasound measurement of blood-flow velocity in the left ventricle, the heart's main pumping chamber. Measurements are taken during systole, when the heart contracts, and diastole, when it relaxes and fills.

Why might I need this test?

It may be ordered as part of an echocardiogram to evaluate heart structure and blood flow. Clinicians may use it to assess valve function, ventricular function, congenital heart abnormalities, or the effects of heart disease.

How is the test performed?

A technician applies a Doppler probe to the chest or directs it into the heart using a probe inserted through the esophagus. Sound waves measure the speed and pattern of blood flow, and the results are reviewed by a clinician.

How do I prepare for the test?

For a standard transthoracic echocardiogram, no special preparation is usually needed. Wear comfortable clothing and follow any instructions given for blood pressure, medication, or other tests performed at the same time.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

Left Ventricular Doppler

Frequently asked questions

Does this test involve radiation?
No. Doppler ultrasound uses sound waves and does not expose you to ionizing radiation.
Is the test painful?
A surface Doppler test is generally painless, although pressure from the probe may be mildly uncomfortable. If a transesophageal probe is required, the throat is numbed and sedation may be provided according to local practice.
Can I have this test if I have a heart condition?
Often, yes. The clinical team will determine whether it is safe and may adapt the test to your symptoms and specific heart condition.
  1. 1
    MedlinePlus — Laboratory TestsSource
  2. 2
    Lab Tests OnlineSource
  3. 3
    Mayo Clinic — Tests & ProceduresSource

Click any link to access the full source. PubMed Central (PMC) links provide free full-text access.

This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

Medical Disclaimer

This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.

If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.

Medically reviewed by WellAlly Editorial Team Last reviewed August 16, 2026. · Read our editorial policy