Advanced NeuroQuant brain MRI analysis

Understand the examination

About NeuroQuant

NeuroQuant software measures volumes of brain structures from suitable MRI images. The measurements provide additional information for interpretation by a clinician; they do not independently diagnose a neurological condition.

How quantitative analysis adds to a brain MRI

NeuroQuant is software that analyzes suitable brain MRI data to identify structures and calculate their volumes. This process, called segmentation, can produce numerical measurements and visual overlays that support a radiologist’s review. It adds a different form of information to the images rather than making the underlying MRI unnecessary. A clinician may use quantitative measurements when assessing a neurological question, but the usefulness depends on the question and the available image data. The report should remain connected to the radiology interpretation and the patient’s clinical assessment. A numerical result should not be presented as an independent explanation of memory symptoms or other neurological difficulties.

What a reference percentile means

A percentile describes where a measurement lies within the reference data used for comparison. It is not the percentage of a brain structure that has been lost, and it is not a percentage probability of a particular disease. The reference group and report configuration matter when reading the output. Cortex measurements and other regional values can also be presented in different ways, so the report’s labels need to be explained before drawing conclusions from a single number. Ask the interpreting clinician which measurement is relevant, how the comparison group was selected and whether the numerical observation agrees with the appearance of the actual MRI images.

A comparison with other people differs from change over time

One examination compares the present measurement with a reference population. A series of comparable examinations may help a clinician consider the person’s own course over time. Those are different questions: a measurement near one end of a reference range may have been longstanding, while an apparently ordinary measurement does not reveal what that person’s earlier value was. Interpretation therefore benefits from knowing which previous images and reports are available and whether a meaningful comparison can be made. Ask whether the current study provides a baseline or a follow-up comparison, and whether any technical or clinical differences limit how much can be concluded from the change.

Image suitability comes before interpreting a number

Quantitative brain analysis depends on suitable input images. Cortechs describes motion, acquisition problems and processing issues as reasons an examination may need review when the software does not produce a reliable result. A failed analysis does not automatically mean that a patient has an abnormal brain finding or that a whole new MRI is required. The clinical team first needs to identify the cause and determine whether the available data can be used. This distinction is useful when discussing existing images from another examination: a readable routine MRI and a dataset suitable for a particular quantitative tool are not necessarily the same thing. Ask whether the analysis was technically successful and whether any quality concern limits the interpretation.

Memory concerns require a broader clinical assessment

An evaluation of memory or thinking difficulties can include a detailed history, assessment of daily functioning, cognitive testing, medication review and laboratory or other investigations. The National Institute on Aging explains that brain imaging may support the assessment or help identify other possible causes of symptoms. A volume measurement cannot replace that process. Describing when difficulties began and how they affect ordinary activities gives the clinician information a scan cannot supply. When appropriate, a family member or trusted person may help explain changes they have noticed. The useful question is how the imaging fits with that broader assessment, including whether different findings point toward the same explanation or leave additional possibilities to investigate.

Separate the software report from the clinical conclusion

A quantitative report may contain regional measurements, reference comparisons and color-coded overlays. The medical conclusion should explain which of those observations matter and why. Ask whether the output has been incorporated into the radiology interpretation or supplied as a separate document requiring specialist review. Keep the complete set together when sharing records. A later clinician needs to understand both the measurements and the interpretation, rather than receiving one graph detached from the examination that produced it.

Scan Preparation

A doctor’s order is required before your scan. Have your referring specialist's order available. Ask whether a new MRI acquisition is required, whether previous images are suitable, and which report the specialist needs. Confirm the center before booking.

During the MRI

The team explains positioning and communication for the scan. Follow instructions about staying still and any brief breathing steps. Ask before the scan begins how to raise a concern, and tell the technologist if you need help.

Imaging Results & Reports

Your radiologist’s report goes to the ordering clinician, who will explain the findings and next steps. Contact our records team for copies of your images or report.