CaseStacks 2.0 — Platform Relaunch

We've rebuilt CaseStacks from the ground up. The entire platform has been migrated to a modern tech stack, delivering significant improvements in performance, security, and maintainability — and laying the foundation for the features below.

Advanced DICOM Viewer

Our new DICOM viewer is a major leap forward with powerful tools for interacting with medical imaging.

• Measurement Tools — Length, angle, and bidirectional measurement tools let you quantify findings directly on the image.
• Region of Interest (ROI) — Draw elliptical or rectangular ROIs with automatic Hounsfield Unit calculations.
• Linked Annotations — Click any annotation referenced in the case findings and the viewer automatically navigates to that exact location on the image.
• W/L Presets — One-click windowing presets for soft tissue, lung, bone, brain, subdural, and stroke windows.
• Custom Sensitivity Controls — Fine-tune scroll speed and window/level drag sensitivity to your preference. Settings are saved to your account and persist across sessions.
• Improved Series Performance — Optimized loading with two-phase prefetching (priority images first, then full stack), memory management, and circuit-breaker fault tolerance for large series.

Study Tools

New tools built directly into the case viewing experience to support focused, uninterrupted study sessions.

• Text-to-Speech — Have case write-ups read aloud with high-quality AI voices. Choose from 8 voices, 4 playback speeds, and read individual sections or the full case. Great for auditory learners or reviewing on the go.
• Notes — Take private, rich-text notes on any case. Notes are saved to your account and linked to the case for easy reference later.
• Pomodoro Timer — A built-in study timer using the Pomodoro Technique with customizable work and break intervals. Completed sessions are tracked in your activity history.
• Lo-fi Music Player — Curated lo-fi playlists and live radio stations (Lofi Girl, Chillhop, Coffee Shop, Jazz Hop) you can listen to while studying — no need to leave the site.

AI Tools (Beta)

A suite of AI-powered assistants designed to support radiology education. All tools include safety measures and are grounded in evidence-based guidelines where applicable.

• Voxel — An AI chat tutor that lives in a sidebar panel. Ask questions, discuss cases, or get help understanding findings. Voxel can search PubMed for peer-reviewed literature and look up incidental findings guidelines mid-conversation. Adapts responses to your training level.
• Impression Generator — Paste your findings and clinical history to generate a structured radiology impression. Supports multiple report styles and modalities. Can also flag potential incidental findings with guideline-based recommendations.
• Differential Assistant — Enter imaging findings to generate an evidence-based differential diagnosis. Uses real-time web search grounding to provide current literature citations. Supports a clarifying-questions workflow to refine results, and you can save differentials for later reference.
• Incidental Findings Assistant — A deterministic lookup tool (not AI-generated) for evidence-based follow-up recommendations. Covers ACR and Fleischner guidelines for pulmonary nodules, thyroid nodules, adrenal nodules, liver lesions, adnexal findings, and gallbladder polyps. Returns exact citations, follow-up intervals, and clinical caveats every time.

Redesigned Call Simulator

The call simulator has been overhauled from a simple random-shuffle format into a structured, session-based experience.

• Sessions — Cases are now organized into discrete sessions rather than an endless random shuffle. You can configure each session before starting and review your performance afterward.
• Time & Case Limits — Set a time limit (up to 3 hours) or a case limit (up to 50 cases) per session, or run unlimited. Time-limited sessions show a live countdown.
• Resume Prior Sessions — Leave a session and pick up exactly where you left off. Active sessions are detected automatically when you return.
• Distractions Mode — Simulate the reality of a call shift. Enable distractions and the simulator will interrupt you with realistic scenarios — ED physicians calling about emergencies, ICU nurses requesting urgent reads, techs asking protocol questions. Choose from quiet, moderate, or busy frequency. You respond in real time, and your interactions are saved with the session.
• AI-Graded Preliminary Reports — Write a preliminary report for each case just like you would on a real call shift. After submission, an AI grading engine evaluates your report on a 0–10 scale against the expert findings and diagnosis. You receive detailed feedback highlighting what you identified correctly, what you missed, and educational context explaining why those findings matter. The grading rubric prioritizes diagnostic accuracy first, then finding identification and report quality.

Revamped Assessments

Assessments have been rebuilt with the same session-based structure and AI grading engine used in the call simulator, creating a more rigorous and flexible evaluation experience.

• Session-Based Structure — Assessments are now organized into configurable sessions. Set a time limit, case limit, or run unlimited. Name your sessions for easy reference later.
• AI-Graded Reports — Submit a preliminary report for each case and receive AI-powered feedback using the same grading rubric as the call simulator. Reports are scored on a 0–10 scale with detailed, educational feedback.
• Grade Display Options — Choose to see your grade and feedback after each case, or wait until the end of the session to review all results together.
• Modality Filtering — Filter available cases by imaging modality (CT, MRI, radiograph, ultrasound, nuclear medicine) when configuring a session.
• Case Locking — Once a case is graded in an assessment session, it's locked to preserve the integrity of your score. You can still attempt new cases.
• Performance Analytics — Track your average scores, score distributions, and progress over time. Program administrators can view aggregate statistics across their residents.

Multilanguage Support

CaseStacks is now available in 9 languages:

English, German, French, Spanish, Japanese, Portuguese, Chinese, Italian, and Korean.

The interface, navigation, dashboard, settings, and feature descriptions are fully translated. Select your preferred language from the language selector and your choice is saved to your account.

Social & Gamification

New features to keep you motivated and connected to the CaseStacks community.

• Leaderboard — See who's completing the most cases and who holds the longest study streaks. Leaderboards also rank radiology programs by total cases completed. Privacy controls let you opt out if you prefer.
• Badges — Earn badges for milestones and achievements across 7 categories: progress (cases and quizzes completed), streaks (consistent daily study), performance (perfect scores), specialty mastery (neuro, chest, MSK), engagement (call simulator, forum activity, saved items), and more. Showcase up to 5 favorite badges on your profile. 30 badges to earn in total, including 2 secret badges.
• Streaks — Track your daily study consistency. Hit 7 days for Week Warrior, 30 for Consistent Learner, and 100 for Dedicated Scholar.

Enhanced Progress Page

The progress page has been redesigned with interactive charts and visualizations to give you a clearer picture of your learning.

• Daily Progress Chart — Track your case completions over time with configurable views (7, 30, 90 days, or all-time).
• Category Breakdown — See your completion rates across course categories at a glance with doughnut and bar charts.
• Activity Heatmap — Visualize your study patterns across days of the week and hours of the day over the past 12 weeks.
• Session Statistics — Review your call simulator and assessment performance including cases reviewed, reports written, average grades, and time spent.

Program Admin Dashboard

An overhauled and improved dashboard for program administrators to manage their residents, track progress, and oversee their subscription — all from a single interface.

Contact us for a demo.

Expanded Help Center

The help center has been completely rewritten with 20+ articles organized across 6 categories — covering everything from getting started and account management to the DICOM viewer, AI tools, assessments, CME credits, and more. A built-in search lets you find answers instantly.