Study of aortic valve using multi slice computed tomography in patients presenting with chest pain
Bibliographic record
Abstract
OBJECTIVE: To determine aortic root dimensions in younger patients presenting with chest pain. METHODS: The descriptive cross-sectional study was conducted at the Armed Forces Institute of Cardiology and the National Institute of Heart Diseases, Rawalpindi, Pakistan, from September 12, 2018, to March 11, 2019, and comprised patients of either gender aged 18-55 years presenting with chest pain falling into Canadian Cardiovascular Society class I-IV and dyspnoea falling into New York Heart Association class I-IV. Multi-slice computed tomography image acquisition was performed in a single breath-hold of about 5-10 seconds, while electrocardiogram gated synchronised data acquisition was done with 60-100ml contrast. Multiphase data-sets were reconstructed followed by data analysis. Required measurements were recorded with software caliper and tracer. Data was analysed using SPSS 23. RESULTS: Of the 330 patients, 236(71.5%) were males and 94(28.5%) were females. The overall mean age was 45.5±7.9 years. Bicuspid aortic valve was found in 3(0.9%) patients, while 327(99.1%) were tricuspid. Mean aortic valve area was 4.01±0.70cm2, mean aortic annular size was 21.9±2.37mm, sinotubular junction diameter was 23.9±3.45mm, and mean sinotubular junction height was 21.09±2.77mm. The mean diameter at sinuses of valsalva was 33.0±3.99mm. CONCLUSIONS: Mean aortic root dimensions and general morphology of the aortic valve was determined to establish normal reference values.
Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.
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 | 0.001 | 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) | 0.000 | 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".