Introducing Scan Comparison: Track Exactly How Your Condition Has Changed Over Time

# Introducing Scan Comparison: Track Exactly How Your Condition Has Changed Over Time You had a scan six months ago. You just had another one. Your doctor glances at both and says, "Things look about the same." You nod — but inside, you have questions. *Same as in better? Same as in nothing got worse? What exactly changed?* For patients managing chronic conditions, cancer follow-ups, lung nodules, or spine issues, "about the same" simply isn't enough. You deserve a clearer picture. Today, we're launching **Scan Comparison** — a feature that lets you place two radiology reports side by side, analyze exactly what changed between them, and receive a structured, plain-language explanation of your health trend over time. --- ## The Problem: Critical Information Gets Lost Between Appointments Comparing two radiology reports manually is nearly impossible for most patients. The language is technical, measurements are buried in dense paragraphs, and there's no easy way to identify what's new versus what was already there. Even when you try, you lose context. A finding described as "stable" in one report and "unchanged" in another might mean the same thing — or it might not. A 1mm growth in a lung nodule sounds small, but over six months, it carries real clinical meaning. The patients who feel this gap most acutely include: - Those tracking **lung nodules** across follow-up CT scans - People managing **degenerative spine conditions** with repeated MRIs - Patients in **cancer surveillance** monitoring for recurrence - Anyone recovering from **pneumonia, injury, or surgery** who wants to confirm genuine improvement If you've ever wished you could see a clear before-and-after comparison of your own imaging reports, this feature was built for you. --- ## How the Compare Feature Works Comparing two scans takes less than a minute. Here's the process: **Step 1 — Select your two scans.** Upload two reports directly, or choose any two from your existing Dashboard history. No need to re-upload files you've already analyzed. **Step 2 — Confirm the actual exam dates.** This step is important. Enter the real scan dates — not the dates you uploaded the files. The AI uses this information to assess the clinical significance of the time gap between your scans. More on why this matters below. **Step 3 — AI analyzes both reports simultaneously.** The system reads both reports in context, identifying measurements, findings, and language that signals change. **Step 4 — Receive your structured Comparison Report.** Your report includes: - **Overall trend verdict:** Improving / Stable / Worsening - **Finding-by-finding change detection:** - ✅ Improved - ➡️ Unchanged - 🔴 Worsened - 🆕 New Finding - **Timeline assessment** based on the gap between your scan dates - **Plain-language explanations** of what the changes actually mean - Access to the **AI Radiology Assistant** for follow-up questions --- ## Enhanced Mode: Comparing the Actual Images Standard comparison analyzes the text of both reports — it's fast, typically around 15 seconds, and works well for most use cases. **Enhanced Mode** goes a step further. When you upload the original scan image files alongside your reports, the AI analyzes the images *and* the text together. This takes approximately 45 seconds and is particularly useful when: - A change is subtle and may not be fully described in the report text - You want visual confirmation that an area of concern has genuinely improved - The reports use inconsistent language between radiologists If you're tracking something specific — a nodule, a joint space, a lesion — Enhanced Mode gives you the most complete picture. --- ## Real-World Use Cases **"My lung nodule was 4mm in January. Now it's 5mm in July. Should I be worried?"** The Comparison Report surfaces that 1mm change, notes the six-month gap, and provides context on what that growth rate typically means — so you can ask your doctor a specific, informed question. **"My spine MRI says 'stable disc herniation.' But stable compared to what, exactly?"** Compare shows you finding-by-finding what has not changed — giving real meaning to the word "stable" rather than leaving you to wonder. **"My chest X-ray looked terrible after pneumonia. The new one looks better — but how much better?"** The feature quantifies that improvement with clear indicators, so "better" has an actual answer. **"I've had three knee MRIs over two years. I want to see the full progression."** Using your Dashboard history, you can run sequential comparisons across multiple scans to track a condition's trajectory over time. --- ## Why Scan Dates Matter More Than You Think When you enter your exam dates, you're giving the AI clinically critical context. A finding that changes over **three weeks** means something very different from the same change measured over **14 months**. Rapid change over a short period can signal something that needs prompt attention. Slow, gradual change over a long period may indicate