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AI-Assisted Diagnosis of
Lymph Node Metastasis
using GigaPixel AI technology
執行長 葉肇元醫師
CEO, Joe Yeh, M.D.
Pitfalls of Traditional Diagnostic Workflow
for Lymph Node Metastasis
1. Repetitive & tedious
2. Time-consuming: need to count
nodes and write report
3. Risk of missing out micro-
metastases in difficult case
JAMA. 2017;318(22):2199-
2210
High probability of missing out micro-metastases
2
3
Giga-pixel challenge of WSIs
Chest X-ray
2,000 × 2,500 (5MP) 40× Whole-slide Image (WSI)
200,000 × 100,000 (20GP)
4
Common approach: patch-based method
• Patch-based method requires extensive detailed annotations by
human experts (1 hour per slide)
Cancer (P)
Benign (N)
5
The Power of Gigapixel AI:
Training AI to recognize metastasis using only
lymph node-level annotation
6
Deep neural network trained on ~6000 gigapixel lymph node
images exhibit superior ability in recognizing micrometastasis
Micrometastasis vs Negative Lymph Nodes (n=919)
7
Examples of lymph node metastasis detected by AI
8
Clinical impact evaluation: Better sensitivity
• The workflow significantly improved the sensitivity of micrometastasis
identification (81.94% to 95.83%, P < .001) and isolated tumor cells
(67.95% to 96.15%, P < .001)
9
Clinical impact evaluation: Shorter review time
• Per-slide median: 161.2 to 110.5 s, −31.5%, P < .001
10
Joe Yeh
joeyeh@aetherai.com

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  • 1. AI-Assisted Diagnosis of Lymph Node Metastasis using GigaPixel AI technology 執行長 葉肇元醫師 CEO, Joe Yeh, M.D.
  • 2. Pitfalls of Traditional Diagnostic Workflow for Lymph Node Metastasis 1. Repetitive & tedious 2. Time-consuming: need to count nodes and write report 3. Risk of missing out micro- metastases in difficult case JAMA. 2017;318(22):2199- 2210 High probability of missing out micro-metastases 2
  • 3. 3
  • 4. Giga-pixel challenge of WSIs Chest X-ray 2,000 × 2,500 (5MP) 40× Whole-slide Image (WSI) 200,000 × 100,000 (20GP) 4
  • 5. Common approach: patch-based method • Patch-based method requires extensive detailed annotations by human experts (1 hour per slide) Cancer (P) Benign (N) 5
  • 6. The Power of Gigapixel AI: Training AI to recognize metastasis using only lymph node-level annotation 6
  • 7. Deep neural network trained on ~6000 gigapixel lymph node images exhibit superior ability in recognizing micrometastasis Micrometastasis vs Negative Lymph Nodes (n=919) 7
  • 8. Examples of lymph node metastasis detected by AI 8
  • 9. Clinical impact evaluation: Better sensitivity • The workflow significantly improved the sensitivity of micrometastasis identification (81.94% to 95.83%, P < .001) and isolated tumor cells (67.95% to 96.15%, P < .001) 9
  • 10. Clinical impact evaluation: Shorter review time • Per-slide median: 161.2 to 110.5 s, −31.5%, P < .001 10