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case-studyJune 18, 2026 ZENO Team 6 min read

Answer Engine Optimization in Healthcare: How an Established Medical Technology Provider Used Zeno to Establish Authority in AI-Powered Search Systems

Answer Engine Optimization in…

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Initial Situation

An established medical technology provider headquartered in Switzerland — specializing in diagnostic imaging systems and clinical decision support — was facing a structural shift in how its target audiences were seeking information. The company employs around 340 people, generates annual revenue in the mid-three-digit million range, and sells its products primarily to hospitals, radiology practices, and medical care centers across the DACH region.

Internal analyses from 2024 revealed that buyers, clinic managers, and medical professionals were increasingly turning to AI-powered search systems — including Perplexity, ChatGPT, and Microsoft Copilot — to research product comparisons, vendor recommendations, and technical specifications. Classic Google traffic to the company's website had stagnated at around 18,000 organic visits per month. At the same time, there was no way to measure whether or how the company was represented in AI-generated responses at all. A systematic AI Visibility infrastructure was entirely absent.

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Challenge

The core problem was not a lack of content — the company had extensive product documentation, whitepapers, and an active presence in trade publications. The problem was structural: the existing content was not built in a way that allowed AI models to recognize it as a citable subject-matter authority and draw on it in generated responses.

In practice, this meant that for queries such as *"Which vendors of MRI imaging systems are leading in the DACH region?"* or *"What are the differences between AI-assisted and conventional radiology diagnostics?"*, the company was not consistently mentioned in any of the LLMs tested. Competitors with weaker market positions but better-structured digital content, on the other hand, were regularly recommended. The result: potential customers received a distorted picture of the market during their research phase — without the company being aware of it or able to respond.

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Solution Approach

The company decided to fully realign its digital content strategy around a dedicated AI Visibility infrastructure. Following a six-week evaluation phase in which several vendors were compared, the decision was made in favor of Zeno Visibility — the only platform that not only measures brand presence in LLMs, but autonomously builds the semantic authority required to generate AI recommendations.

Phase 1 — Baseline Measurement (Weeks 1–3): Zeno Visibility's research engine was used to systematically capture the company's existing brand presence across ChatGPT, Gemini, Perplexity, Claude, and Microsoft Copilot. The result: an initial Semantic Authority Score of 14 out of 100 — with particularly weak scores in the topic clusters "AI-assisted diagnostics," "imaging systems DACH," and "medical technology regulation."

Phase 2 — Authority System Build (Weeks 4–12): Zeno Visibility's Authority System Builder generated a complete semantic content system for each of eight prioritized keywords. For the keyword "AI-assisted radiology diagnostics," the system included: a central hub article of 2,400 words, 14 thematically linked FAQ pages, three comparison pages covering competing technology approaches, two case studies from clinical settings, and 22 social media posts for LinkedIn and Xing. All content was marked up with automatically generated Schema.org JSON-LD and structured with a consistent internal linking architecture — maximizing machine readability and knowledge graph anchoring.

Phase 3 — CMS Integration and Publishing (Weeks 10–14): The completed content systems were published directly into the company's existing WordPress CMS. Zeno Visibility delivered the content in Gutenberg format, including all metadata and structured data — with no manual post-processing required from the internal editorial team.

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Results

Measurements taken after 90 days showed significant changes in the company's AI visibility:

  • Semantic Authority Score: Increased from 14 to 61 out of 100 — a gain of 336 percent within three months
  • LLM Presence: On Perplexity, the company appeared in the top 3 recommendations for 7 out of 10 defined test queries (previously: 0 out of 10). On ChatGPT and Copilot, the mention rate rose from below 5 percent to 38 and 44 percent respectively
  • Organic Traffic: In addition to AI channels, organic Google traffic increased to 26,400 visits per month — up 46 percent from the baseline
  • Qualified Inquiries: In the third month after go-live, the sales team recorded a 28 percent increase in inbound inquiries through digital channels, with prospects arriving noticeably better informed
  • Internal Time Investment: The editorial team spent fewer than 40 hours in total across phases 2 and 3 — compared to an estimated 600-plus hours for in-house production of a comparable volume of content
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    Lessons Learned

    1. Existing content is no protection against AI invisibility.

    Extensive documentation and whitepapers are not automatically recognized as authoritative by LLMs. What matters is the semantic structure and machine-readable markup of the content.

    2. The Semantic Authority Score makes the invisible measurable.

    Without dedicated measurement of LLM presence, every company is operating blind. A quantifiable score is the prerequisite for strategic decision-making.

    3. Topic clusters outperform individual articles.

    AI models favor sources that cover a topic comprehensively and in an interconnected way. A single high-quality article is not enough — a semantically coherent content system is required.

    4. Regulated industries benefit disproportionately.

    In healthcare, decision-makers seek trustworthy, technically grounded sources. Being established as an authority in LLMs in this space creates a structural competitive advantage that is difficult to replicate.

    5. Technical markup is not optional.

    Schema.org JSON-LD and consistent internal linking are not SEO add-ons — they are the fundamental prerequisite for AI systems to correctly classify and cite content.

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    Summary

    An established Swiss medical technology provider increased its Semantic Authority Score from 14 to 61 within 90 days and grew its presence in AI-powered search systems from near zero to a consistent top-3 positioning. Using Zeno Visibility as an AI Visibility infrastructure made this possible with minimal internal resource investment — through autonomous generation of semantically interconnected content systems, automated schema markup, and direct CMS integration. The project demonstrates that AI visibility is not a matter of chance, but the result of systematically built semantic authority.

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    *This content was created with AI assistance and editorially reviewed.*

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