Opportunistic Screening AI Detects CAC at 92% AUC in Head CTs

Opportunistic Screening AI Hits 92% AUC on 1,024 Patients

Opportunistic screening AI detects coronary artery calcium (CAC) in head CT scans. It achieves 92% area under the curve (AUC) accuracy. Cardiovascular Business reports this April 17, 2026. The model trained on 5,000+ paired head-chest CTs.

Biohackers pair it with Oura Ring HRV for vascular insights. No added radiation or costs.

CNNs Enable Head CT CAC Scoring

Convolutional neural networks (CNNs) analyze head CT voxels. They segment hearts and calculate Agatston scores. Paired scans with gated chest CTs trained the model. Radiologists validated results.

Cardiovascular Business used human data only. Peter Attia, MD, notes CAC predicts all-cause mortality better than cholesterol (Drive podcast, 2023).

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CAC Predicts MI Risk in MESA Cohort

CAC scores boost myocardial infarction hazard ratio 2.5-fold per 100 units. The Multi-Ethnic Study of Atherosclerosis (MESA; 2008-2016, n=6,814) shows this. Early detection spurs Zone 2 training.

Rhonda Patrick, PhD, ties vascular stiffness to healthspan loss (FoundMyFitness, 2024). Hospitals integrate via PACS.

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AI Radiology Funding Reaches $200M

Tempus AI raised $200M VC (2024 filings). BlackRock medtech ETFs gain 15% YTD.

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Biohacking Integrates Opportunistic Screening

Stack CAC with nicotinamide riboside (NR; 300-500mg daily, GRG trials preliminary; not FDA-approved for longevity). Track via annual scans.

Saunas (20min at 80°C) cut CVD hazard ratio to 0.77 (Laukkanen et al., JAMA Internal Medicine 2015; n=2,315 Finns). Andrew Huberman, PhD, details nitric oxide (Huberman Lab, 2023).

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Transfer Learning Boosts 95% Accuracy

Transfer learning from chest CTs delivers 95% Dice score on aorta. AWS GPUs run inference.

DeepMind AI spots eye disease at 94% sensitivity (2020). NVIDIA GPUs power it; NVDA stock climbs.

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$50B AI Medtech Draws Longevity Capital

AI medtech hits $50B valuation (CB Insights 2026). Crypto volatility: WBT +1.8% to $55.30, ADA +3.8% to $0.26, DOGE +3.0% to $0.10.

Opportunistic screening scales globally. FDA clearance eyed Q3 2026. Biohackers demand AI CAC on head CTs. Pair with metformin (1g BID; TAME trial NCT02432287, ongoing Phase 3). Vascular data drives healthspan gains.