Voxel AI
Voxel AI is an educational radiology tutor for direct questions and interactive practice. On the website, open it from any case page with the Ask Voxel button. You can ask about imaging findings, differential diagnoses, anatomy, and case-specific questions. Voxel adapts to your training level and references the current case context when available.
Your conversations are saved so you can pick up where you left off. To stop saving new ones, turn off Store conversation history: on the website under Account Settings, Privacy & Legal, and in the app under Settings, Account, Privacy.
Impression Generator
The Impression Generator creates professional radiology impressions from your findings. Enter your clinical findings and imaging observations, and it generates a structured impression. Useful for practice and learning report writing.
Differential Assistant
The Differential Assistant generates evidence-based differential diagnoses from imaging findings and clinical context. It may ask clarifying questions to refine results. Generated differentials can be saved for later reference.
Incidental Findings
The Incidental Findings Assistant provides guideline-based follow-up recommendations for incidental findings using published ACR and Fleischner guidance, organized by modality and body region. Standalone lookups count against your monthly usage allowance.
Report Grading
When you save a report in the Call Simulator or submit one in an Assessment, AI grades it against the expert report, weighing the diagnosis first, then the findings you identified, then report quality. The grade reads Excellent, Good or Review again with its percent (for example "Good ยท 78%"). The โ beside it explains what it means. See Assessments & Call Simulator for details.
Text-to-Speech
Case content can be read aloud using text-to-speech. Click the Read button on any case section, or use Read All to listen to everything in sequence. Adjust playback speed in the settings panel (gear icon in the footer) or in Account Settings โ Accessibility. Read-aloud has no monthly allowance.
Voice Dictation (Speech-to-Text)
On the website, you can dictate instead of typing in the Call Simulator, Assessments, and Notebook. Click the microphone icon or press Alt+T to start dictation. Dictation on the website has a monthly usage allowance measured in minutes.
Usage Limits
Most AI tools have a monthly usage allowance that resets on the 1st of each month. Your limits depend on your subscription:
- Free โ Lower limits across all tools
- PRO โ Significantly higher limits included with any PRO subscription
To see your current usage on the website, go to Account Settings and open the AI Usage tab. It shows Radiology Impressions, Voxel Chat, Assessment Grading, Differential Assistant and Incidental Findings. Dictation is limited monthly too but has no meter there.
Read-aloud and the Differential Assistant have a daily limit that resets at midnight US Eastern Time.
When you reach a limit, you'll receive a message letting you know.
In the App
- Voxel AI Chat: tap the Voxel AI Chat button at the top right, or open Resources. App chats don't include the case you were viewing. Voxel's replies can list the textbook sources they drew on.
- Impression Generator, Differential Assistant and Incidental Findings are under Resources. The Impression Generator and Differential Assistant show how many uses you have left after each result.
- Read aloud: tap Read All at the top of a case's Write-Up tab, or the speaker icon on a section.
- Dictation: tap the microphone in the Call Simulator's report box. It uses your device's speech recognition, so it doesn't count against your monthly allowance.
Disclaimers
All AI tools require accepting a disclaimer before first use. AI output may be inaccurate or misleading โ always verify before clinical use. Do not enter patient-identifiable information (names, MRNs, DOBs).