| SN | Abb. | Definition |
| 1 | ACC | American College of Cardiology |
| 2 | AIbTC | Artificial Intelligence-based tissue characterization |
| 3 | ARDS | Acute respiratory distress syndrome |
| 4 | ASCVD | Atherosclerotic cardiovascular disease |
| 5 | ANS | Autonomic nervous System |
| 6 | AUC | Area under curve |
| 7 | AI | Artificial Intelligence |
| 8 | BMI | Body mass index |
| 9 | CAD | Coronary artery disease |
| 10 | CAS | Coronary artery syndrome |
| 11 | CHD | Coronary heart disease |
| 12 | CKD | Chronic kidney disease |
| 13 | CT | Computed Tomography |
| 14 | CUSIP | Carotid ultrasound image phenotype |
| 15 | CV | Cross-validation |
| 16 | CVD | Cardiovascular disease |
| 17 | CVE | Cardiovascular events |
| 18 | DL | Deep learning |
| 19 | DM | Diabetes mellitus |
| 20 | EEGS | Event-equivalent gold standard |
| 21 | EMG | Electromyography |
| 22 | EC | Endothelial Cell |
| 23 | ER | Endothelium reticulum |
| 24 | FH | Family history |
| 25 | GT | Ground truth |
| 26 | HTN | Hypertension |
| 27 | HDL | Hybrid deep learning |
| 28 | ICAM | Intercellular adhesion molecule |
| 29 | VCAM | Vascular cell adhesion molecule |
| 30 | LBBM | Laboratory-based biomarker |
| 31 | MedUSE | Medication use |
| 32 | ML | Machine learning |
| 33 | MRI | Magnetic Resonance Imaging |
| 34 | NR | Not reported |
| 35 | NPV | Negative predictive value |
| 36 | NB | Naive Bayes |
| 37 | NO | Nitric Oxide |
| 38 | nOH | Neurogenic orthostatic hypotension |
| 39 | Non-ML | Non-machine learning |
| 40 | OBBM | Office-based biomarker |
| 41 | OH | Orthostatic hypotension |
| 42 | OxLDL | Oxidation of low-density lipoprotein |
| 43 | QTc | Chaotic heartbeat |
| 44 | PE | Performance evaluation |
| 45 | PPV | Positive predictive value |
| 46 | PCA | Principal component analysis |
| 47 | PRISMA | Preferred Reporting Items for Systematic Reviews and Meta-Analyses |
| 48 | PTC | Plaque tissue characterization |
| 49 | RA | Rheumatoid arthritis |
| 50 | PR | The period measured in milliseconds |
| 51 | RF | Random forest |
| 52 | ROS | Reactive Oxides Stress |
| 53 | RoB | Risk of bias |
| 54 | ROC | Receiver operating-characteristics |
| 55 | RNA | Ribonucleic acid |
| 56 | SCORE | Systematic coronary risk evaluation |
| 57 | SMOTE | Synthetic minority over-sampling technique |
| 58 | SVM | Support vector machine |
| 59 | TPA | Total plaque area |
| 60 | TC | Tissue Characterization |
| 61 | US | Ultrasound |
| 62 | tPA | tissue plasminogen activator |