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01 · Chronicle → Brevity AI

Helping clinicians review AI-selected moments.

Surgery videos are long and hard to search and review. In the Chronicle capstone, we explored how surgeons could find particular moments and understand which clips were suggested by AI. I later cofounded Brevity and kept working with ENT surgeons on how the videos could be used.

My role
Research synthesis and interaction design on a five-person capstone; later cofounder, CPO and sole UX lead at Brevity.
Working with
My cofounder and CEO, surgeons, residents, a part-time CTO, and clinical, legal and research stakeholders.
Stage
Surgeon-tested capstone concept; later a six-video ENT pilot. The startup closed after funding constraints.
Original Chronicle capstone interface with video playback, timeline and Proposed, Confirmed and All clip-list tabs
Original high-fidelity capstone interface, cropped from slide 54. Select the image to open the original slide.

The work

How surgeons used their recordings.

Our capstone team used contextual inquiry and interviews with ENT surgeons and residents to understand how recordings were captured, retrieved, reviewed and shared. I worked on the synthesis and video lifecycle, then translated the findings into interaction design.

One question was how a surgeon could find a particular moment while still seeing it within the original recording. We worked from that question when designing playback, clip navigation, annotation and sharing.

Research synthesis linking surgical-video pain points to opportunities
Preserved research synthesis from the Chronicle work. Select image to inspect it at full size.

Prototype testing

What our sponsor found confusing in the clip manager.

We tested the Chronicle prototype with our sponsor. The testing notes recorded confusion about the edit and add functions in the right-hand panel, what would happen after selecting them, and which clips appeared in the list.

View the original testing notes · slide 48
Chronicle sponsor testing notes: edit/add controls and the clips shown in the right-hand list were unclear.
Original testing notes: positive trust ratings alongside confusion about the controls. Select image to inspect it at full size.

Inside the clip manager

Detail from the final capstone concept, slide 54.

Full original slide (new tab)
Excerpt of the original Chronicle clip panel with Proposed, Confirmed and All tabs, Edit and Publish controls, clip tags and bookmark icons.
Original pixels shown in a cropped view. Enlarge for small labels, then scroll within the image. With a keyboard, focus the image region and use the arrow keys. The explanation below describes what to look for.
Proposed, Confirmed, All
These tabs appear above the clip list. They give the reviewer a visible way to distinguish the lists.
Edit and Publish
The controls appear at the top of the panel, with tags and bookmarks on individual clips.

We used the sponsor feedback to work through how the highlight reel and video clips communicated their different states. Our state exploration compared the timeline with the clip list under “Default” and “Hide Suggestions,” including AI-suggested, manually created and bookmarked clips.

View the complete state exploration · slide 51
Full Chronicle state diagram and original notes about distinguishing AI-suggested, manually created and bookmarked clips.
Original state exploration with its explanatory notes, slide 51. Select image to inspect it at full size.

We still needed to show where each clip came from and how it related to the full recording and the highlight reel.

I would pair the visual distinctions with text labels, then ask clinicians to identify a clip’s origin, predict what a control will do and return to the source recording. I would also check how review differs between surgeons and residents, and who can confirm or share a clip.

Earlier design work
First-round Chronicle mid-fidelity mockups from the capstone team’s broader interaction-design process.
First-round mid-fidelity mockups, slide 44. The team used sponsor, instructor and peer feedback to refine tasks and interactions. Select image to inspect it at full size.

Product judgment

Why we shifted from peer review to consultation.

At Brevity, I explored several uses for surgical video, including documentation, peer review and consultation. Conversations with surgeons made the CEO and me question whether they would welcome peer evaluation. We discussed those concerns and pivoted toward consultation.

The service connected physical video retrieval, secure upload, AI summarization and clinician review. I worked with the technical and clinical stakeholders; the attending retained clinical decision authority.

01

Retrieve

Find and prepare the source recording.

02

Suggest

AI selects candidate moments for review.

03

Review

The clinician inspects the original context.

04

Use or return

Only reviewed material should inform the next step.

Reconstructed workflow summary. “Use or return” describes the intended review boundary.

What resulted

A tested concept, then a small pilot.

The work produced a high-fidelity concept tested with surgeons and a later six-video ENT pilot. The public project record reports positive summary-confidence feedback.

The next study would also look at missed events and the effort it takes to correct a suggestion. A clinician should be able to reject a suggestion without losing their place or the original evidence.

Next: reviewing evidence at Lumen →

Ariel Koh · Seattle, Washington

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© 2026 Ariel KohAI experience design · Research · Service design