Absence Index, release 2026-09

Radiology and imaging software, measured across five AI engines

Imaging-center and hospital radiology IT buyers ask ChatGPT, Claude, Perplexity, Google AI Overviews and Google AI Mode which radiology and imaging platforms to shortlist before they talk to sales. The engines answer from public material, and the named set shapes the first list a buyer sees. This page records who the engines named in the September 2026 Absence Index, the buyer questions, where the five engines disagree, the sources they cited and the rename facts that confuse retrieval.

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Radiology and medical imaging software, observed 22 September 2026 (UTC)

87 of 150observed answers named Sectra

24vendors checked in this category

2 of 24checked vendors named in none of the 150 observed answers

1 of 10buyer questions with no checked vendor named in any observed answer

Observed answers on stated dates, not a ranking. Every checked vendor on the Index

Who the engines named

Sectra was named in 87 of 150 observed answers across ChatGPT, Claude, Perplexity, Google AI Overviews and Google AI Mode, more often than any of the other 23 vendors the Index checked in this category. Sectra on the Index.

2 of the 24 checked vendors were named in none of the 150 observed answers:

1 of the 10 buyer questions returned no checked vendor in any observed answer. This counts checked vendors only; an engine may still have named a vendor outside the checked set.

Also named often: Intelerad and Visage Imaging. Every checked vendor's count and base is on the Index category page.

Answers were observed on 22 September 2026 (UTC) and released on 23 September 2026. These are observed answers on stated dates, not a ranking.

On the Index

What buyers ask

The ten buyer questions, in the buyers' own words, exactly as each engine was asked them.

Shortlist

What is the best PACS for a small imaging center?
What is the best RIS for an outpatient imaging center?
What is the most affordable PACS for a low volume imaging center?

Alternatives

What are the best alternatives to Sectra PACS?
What are the best alternatives to Intelerad for a teleradiology group?
What are the best alternatives to Philips IntelliSpace PACS?

Buyer evaluation

Sectra vs Visage Imaging, which PACS is better for a hospital system?
Visage vs Intelerad, which is better for a teleradiology firm?
What should I look for when choosing a new radiology PACS?

Specific workflow

What is the best RIS PACS for an imaging group with five locations?

Where the five engines disagree

The engines split. Claude, Perplexity and Google AI Overviews named Sectra most often; ChatGPT and Google AI Mode named Intelerad most often. The per-engine counts are on the Index category page.

The vendor each engine named most often in its own observed answers
Engine	Named most often
ChatGPT	Intelerad
Claude	Sectra
Perplexity	Sectra
Google AI Overviews	Sectra
Google AI Mode	Intelerad

The sources the engines cited

The domains the engines cited most often in this category's observed answers, in the order the Index records them. Each domain's count and base is on the Index category page.

reddit.com
pacscribe.com
engage.klasresearch.com
intelerad.com
radiologybusiness.com
worldmetrics.org
intuitionlabs.ai
slashdot.org
klasresearch.com
sourceforge.net

Renames and ownership changes in radiology and imaging

When a radiology and imaging vendor is acquired, taken private or rebranded, directories, review sites and trade press often keep the old string for months. ChatGPT, Claude, Perplexity, Google AI Overviews and Google AI Mode, which most buyers call Gemini, retrieve that stale material. A retired product brand without a former-name bridge can still appear in answers, while the living brand is missing from the same shortlist.

Renames and ownership changes with a public source
Old name	New name	Date	Owner or sponsor	Product brand	Source
Intelerad (Hg portfolio)	Intelerad, a GE HealthCare company	2025-11 (announced)	GE HealthCare	kept	Source, Intelerad (Hg portfolio) Read 2026-09-22
IBM Watson Health / Merge Healthcare assets	Merative (Merge imaging lineage)	2022-06	Francisco Partners	Merge product lineage kept under Merative	Source, IBM Watson Health / Merge Healthcare assets Read 2026-09-22
eRAD (standalone imaging IT)	eRAD, part of RadNet	Not dated in source	RadNet	kept	Source, eRAD (standalone imaging IT) Read 2026-09-22

What changes the answer

Entity and structured data

Publish Organization and SoftwareApplication markup that states the current legal name, product name, former names and sameAs links to the profiles engines already cite. When a rename or acquisition happened, add a formerly-known-as bridge so the engines can connect the old string to the living brand.

Answer pages

Write pages that answer the buyer questions above in buyer language, with no brand name planted in the question wording itself. Publish them on the vendor domain the engines already try to cite.

Source placement

Place accurate product and ownership facts on the directories, review sites, trade press and forums the engines cite in this category, listed above.

Crawler access and review presence

Confirm robots rules, rendering and any bot filter still let AI crawlers reach the answer and entity pages, and keep listings current on the review sites for this category so the engines retrieve one consistent name, domain and category label.

Start with a measured baseline

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Questions

Which radiology and imaging software vendors did AI engines name most often in the September 2026 Absence Index?

Sectra was named in 87 of 150 observed answers across ChatGPT, Claude, Perplexity, Google AI Overviews and Google AI Mode. The next most named were Intelerad and Visage Imaging. These are observed answers on stated dates, not a ranking; every checked vendor's count and base is on the Index category page.

Why does a rename change what AI engines say?

Engines retrieve public material that still carries retired product names, old legal entities and pre-acquisition domains. When those strings are not bridged to the current brand, the answer can name a name the company no longer uses, or skip the living brand entirely.

What should a radiology and imaging software vendor measure first?

Start with the ten buyer questions on this page. Record, for each question and each of the five engines, whether the brand was named and whether the brand domain was cited. Keep the wording frozen between runs so the comparison stays valid.

How is Broadcastwell related to the vendors in this category?

Broadcastwell measures AI search visibility for B2B software and publishes the Absence Index. It does not sell radiology and imaging software, and no vendor commissioned this category's measurement.

Industries in the Absence Index

Cite as: Broadcastwell, The Absence Index, release 2026-09, 23 September 2026, method v1.1. DOI 10.5281/zenodo.22907695. This category in release 2026-09 on the Index. Data license CC BY 4.0. Every Audit figure comes from the published method, v1.1.