MCA PSV MoM calculator

Welcome to the MCA PSV MoM Calculator. This tool is designed to help you calculate the Multiple of the Median (MoM) value for the Middle Cerebral Artery (MCA) Peak Systolic Velocity (PSV), an important measure used in prenatal assessments.

The MCA PSV MoM value helps evaluate fetal blood flow and can be a key indicator in monitoring fetal well-being. By inputting your gestational age, MCA PSV, and median MCA PSV values, you can determine how your measurement compares to standard reference values.

Please use this calculator as a guide and consult with your healthcare provider for personalized advice and interpretation.

Gestational Age (in weeks):

Calculate your gestational age here if needed.

MCA PSV (Peak Systolic Velocity): Median MCA PSV:

Disclaimer:

The MCA PSV MoM Calculator is intended for informational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
The median peak systolic velocity values provided by this calculator are approximate and based on general reference ranges that may vary depending on individual circumstances and local guidelines.
Always consult with a qualified healthcare provider for accurate assessments, personalized recommendations, and medical decisions. The use of this calculator does not guarantee any medical outcomes or results and should not be relied upon as the sole basis for clinical decisions.

Author Bio

Idris Ya’u

BSc Botany, MSc Biology

Fetal MCA Doppler normal values

The distribution of MoM values for the Middle Cerebral Artery (MCA) shows that in non-anemic fetuses, the median MoM is 1.19 with a range of 1.53, a maximum of 1.37, and a minimum of 1.03. In contrast, anemic fetuses have a higher median MoM of 1.62, with the same range of 1.53, a maximum value of 1.78, and a minimum value of 1.52.

You can learn more here.

What is PSV in MCA?

PSV, or Peak Systolic Velocity, in the Middle Cerebral Artery (MCA) refers to the highest velocity of blood flow measured during the systolic phase of the cardiac cycle in the MCA. It is used to assess blood flow characteristics in the fetal brain and can be an important indicator in evaluating fetal well-being and detecting potential complications.

What is the normal value of MCA MoM?

The normal value of the MCA MoM (Multiple of the Median) typically ranges around 1.0. Values above or below this can indicate potential anomalies, such as fetal anemia or other conditions. Normal ranges can vary slightly based on gestational age and specific reference ranges used by different medical institutions.

How to calculate MoM of MCA PSV?

To calculate the MoM (Multiple of the Median) of MCA PSV:

Measure the MCA PSV: Obtain the Peak Systolic Velocity of the MCA from a Doppler ultrasound.
Obtain the Median PSV: Use reference values for the median PSV for the corresponding gestational age.
Calculate MoM: Divide the measured MCA PSV by the median PSV. The formula is: [
MoM = Measured MCA PSV ÷ Median PSV

How to obtain MCA Doppler?

To obtain an MCA Doppler:

Schedule an Ultrasound: Visit a healthcare provider for a Doppler ultrasound, typically performed during a detailed fetal scan.
Perform the Scan: A transducer is placed on the mother’s abdomen, and ultrasound waves are used to measure blood flow velocities in the MCA.
Analyze the Results: The Doppler ultrasound will provide measurements such as PSV, which can then be used for further assessment.

What is 1.5 MoM?

1.5 MoM (Multiple of the Median) indicates that the measured value is 1.5 times the median value for the given gestational age. For instance, if the median PSV for the MCA at a particular gestational age is 50 cm/s, a 1.5 MoM would correspond to a measured PSV of 75 cm/s.

What is the MoM value?

The MoM (Multiple of the Median) value represents how many times a specific measurement (such as MCA PSV) deviates from the median value for a given gestational age. It is used to determine if the measurement is within a normal range or if it indicates potential concerns.

How do you calculate MoM percentage?

To calculate the MoM percentage:

Calculate MoM: Use the formula: MoM = Measured Value ÷ Median Value
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Convert MoM to Percentage: Multiply the MoM value by 100 to get the percentage. For example, a MoM of 1.5 corresponds to 150% of the median value.