Long-term prognostic impact of complete revascularisation defined by CT-derived fractional flow reserve
Bibliographic record
Abstract
Background Complete revascularisation has been associated with improved short-term outcomes in patients with coronary artery disease, but whether these benefits persist long-term and can be defined non-invasively remains uncertain. We investigated the long-term prognostic impact of complete versus incomplete revascularisation determined by coronary CT angiography-derived fractional flow reserve (FFR CT ). Methods In this prospective multicentre study, 900 patients with new-onset stable angina and at least one coronary stenosis of 30% or greater on coronary CT angiography were followed for a median of 7 years. FFR CT values were obtained for each vessel, and patients were categorised as completely revascularised (all vessels with FFR CT ≤0.80 revascularised), incompletely revascularised (one or more vessels with FFR CT ≤0.80 not revascularised), or with normal physiology (all vessels with FFR CT >0.80). Early revascularisation was defined as treatment within 90 days of the index scan. Quantitative coronary plaque burden was assessed using artificial intelligence-enabled plaque analysis. The primary endpoint was a composite of cardiovascular death or spontaneous myocardial infarction. Results Of 900 patients, 210 (23%) were classified as incompletely revascularised, 167 (19%) as completely revascularised and 523 (58%) as having normal physiology. The primary endpoint occurred in 34 of 210 (16.2%) incompletely revascularised patients, 13 of 167 (7.8%) completely revascularised patients and 30 of 523 (5.7%) with normal physiology. Incomplete revascularisation was associated with higher risk compared with complete revascularisation (HR 2.33, 95% CI 1.23 to 4.42; p=0.01) and normal physiology (HR 3.54, 95% CI 2.16 to 5.81; p<0.001). These associations remained significant after adjustment for total plaque burden, and the risk difference persisted beyond 3 years of follow-up. Conclusion Complete revascularisation defined by CT-derived fractional flow reserve was associated with a sustained reduction in cardiovascular death and spontaneous myocardial infarction over 7 years, supporting its potential role as a non-invasive tool to guide revascularisation strategies in stable coronary artery disease.
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.001 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".