Assessments & Call Simulator

These are two separate products. The Call Simulator is on both the website and the mobile app, where it has its own Simulator tab. Assessments are a website feature and are not available in the app.

Call Simulator

The Call Simulator lets you practice radiology consultations by working through cases as if fielding real calls. Cases are presented blind — you see the patient demographics, indication, and images, but not the diagnosis.

Starting a Session

Choose which courses/topics to include — the course picker already scopes the pool by body region and modality. Then optionally configure:

• Case Filter — Limit to All, Incomplete, Complete, only your saved cases, or My Blind Spots (cases you missed and your lowest-scoring topics; unlocks after a few graded reports). Filter further by AI Grade range, or by Age Group (Adults / Peds).
• Time limit — Set a total session time for added pressure
• Case limit — Set a maximum number of cases per session
• Distractions — Enable simulated interruptions (quiet, moderate, or busy) that mimic real-world clinic distractions during your session

During a Session

For each case, review the images and write a preliminary report describing your findings and impression. You can type or use voice dictation (click the microphone icon or press Alt+T).

Your report isn't saved until you click Save Preliminary Report. When you do, the AI grades your report against the expert report. Open the Diagnosis section to see your score, feedback and the key findings you caught or missed, and click Ask Voxel to ask follow-up questions. Unlike Assessments, the case doesn't lock: you can revise your report and save it again for a new grade.

If you enabled a time limit, a countdown timer appears in the footer. The session ends automatically when time runs out or you've completed all cases.

Navigate between cases using the Previous/Next buttons, and end the session early at any time.

After a Session

The summary page shows your total cases reviewed, reports written, and session duration, plus each report with its AI grade and feedback. You can review past sessions from the activity page.

In the App

Open the Simulator tab at the bottom of the screen. Pick your topics, a case filter (All, Incomplete, Completed, or Needs practice) and an optional time or case limit, then start. Distractions, the saved-cases and age-group filters, and AI Grade ranges are on the website. During a session you write your report in the Preliminary Report bar under the image. Keyboard shortcuts are a website feature. See Using the Call Simulator for the mobile steps.

Assessments

Assessments run on casestacks.com, so use the website for graded work.

Assessments are graded evaluations where AI scores your reports against expert references. Unlike the Call Simulator, each case can only be graded once — after grading, the case is permanently locked for your account.

Starting an Assessment

From the assessments page, configure your session:

• Session name (optional) — Label your session for easy reference later
• Limit type — Unlimited, time-limited, or case-limited
• Topics — Choose which topics to include (for example Chest CT or MSK Radiographs); leave them all unchecked to include every topic
• Grade display — See grades after each case, or all at once at the end

Writing and Submitting Reports

Each case shows the same blind presentation as the Call Simulator. Write your preliminary report (up to 5,000 characters) and click Submit Report. The AI evaluates your report shortly afterwards.

Grading and Feedback

After grading, you'll see:

• Score — A percentage grade with color coding (green, blue, amber, or red)
• AI feedback — An explanation of what you identified correctly, what you missed, and key learning points
• Expert report — The reference report for comparison

You can also click Ask Voxel to ask follow-up questions about the case.

Reviewing Past Assessments

Visit the assessment activity page to see all your past sessions with dates, case counts, and average scores. Click any session to review the full case-by-case results.

Call Simulator vs. Assessments