A guide for communicating ANRISK® results to employees

1. Why Assess Brain Aneurysm Risk?

Workplace health screenings and cardiovascular risk assessments typically focus on common chronic conditions such as hypertension, diabetes, and dyslipidemia. However, brain aneurysms are not routinely evaluated as part of these assessments, making them difficult to detect unless a separate imaging examination is performed.

A brain aneurysm occurs when a weakened area of a blood vessel in the brain begins to bulge outward. In most cases, it causes no symptoms and remains undetected. If the aneurysm ruptures, it can lead to a subarachnoid hemorrhage—a severe type of brain bleed associated with a mortality rate of approximately 30–40%. Even among survivors, significant long-term neurological complications may occur.

When detected before rupture, however, a brain aneurysm can often be treated successfully through minimally invasive procedures or surgery. Early detection can therefore make a critical difference in preventing life-threatening outcomes.

ANRISK® was developed to address this gap. Using existing health screening data, the AI identifies individuals who may be at elevated risk for a brain aneurysm—without requiring additional tests. By helping identify higher-risk individuals earlier, ANRISK® supports more informed decisions about follow-up evaluation and preventive care.

2. How Is Brain Aneurysm Risk Assessed?

<aside> <img src="/icons/report_blue.svg" alt="/icons/report_blue.svg" width="40px" />

Key Takeaway: "The ANRISK® score is not determined by any single test result. It is generated by an AI model that evaluates 21 health indicators from your health screening data simultaneously. In general, higher scores indicate a greater likelihood that additional brain imaging—such as MRI or MRA—may be beneficial."

</aside>

How Does the AI Calculate the Score?

It Evaluates Multiple Factors Together.

The ANRISK® model does not rely on a simple checklist approach where a single abnormal result automatically indicates elevated risk. Instead, it analyzes the combined pattern of 21 health indicators—including blood pressure, blood glucose, cholesterol levels, lifestyle factors, and family history—to generate a comprehensive risk assessment.

Why Can't a Single Factor Be Identified as the Cause?

If you have used conversational AI tools such as ChatGPT or Gemini, you may have noticed that they can generate remarkably convincing answers, yet it is often difficult to understand exactly how the AI arrived at a particular response. ANRISK® works in a similar way.

When 21 health indicators are entered, the model performs tens of thousands of complex calculations to generate a single risk score. During this process, it evaluates not only each individual factor but also the interactions and relationships between factors. As a result, it is difficult to attribute the score to a single cause or explain it in simple terms such as, "Your score increased by a certain number of points because your blood pressure was high."

What we can say with confidence is that the ANRISK® model was developed using a large-scale dataset of real-world health screening records and was subsequently validated using independent clinical data. The score is therefore based on statistical patterns identified from large populations rather than personal judgment or subjective interpretation.

Which Health Indicators Are Included??

How Should the Risk Score Be Interpreted?

The AI-generated result is expressed as a score ranging from 0 (lowest risk) to 100 (highest risk). Based on the score, individuals are classified into one of five risk categories.