Table 1.
(A) Calcified plaque | CSCT | Chest CT | CCTA | Training | Testing | Classifier |
---|---|---|---|---|---|---|
de Vos et al. (6) | ✓ | ✓ | 1,554 | 1,036 | CNN | |
Cano-Espinosa et al. (7) | ✓ | 4,973 | 1,000 | CNN | ||
Lessmann et al. (8) | ✓ | 1,181 | 506 | CNN | ||
Yang et al. (9) | ✓ | ✓ | 32 | 40 | SVM | |
Wolterink et al. (10) | ✓ | 150 | 100 | CNN | ||
Wolterink et al. (11) | ✓ | 384 | 570 | RF | ||
Shahzad et al. (12) | ✓ | 209 | 157 | kNN | ||
Išgum et al. (13) | ✓ | 337 | 231 | kNN, SVM | ||
Sánchez et al. (14) | ✓ | 200 | 76 | kNN | ||
Liu et al. (15) | ✓ | * | 31 | SVM | ||
Kurkure et al. (16) | ✓ | 100 | 105 | SVM | ||
Brunner et al. (17) | ✓ | * | 30 | SVM | ||
(B) Non-calcified plaque | Detect | Characterize | Training | Testing | Classifier | |
Kolossváry et al. (18) | ✓ | * | 7 | LC | ||
Masuda et al. (19) | ✓ | * | 78 | BO | ||
Zreik et al. (20) | ✓ | ✓ | 98 | 65 | CNN | |
Zhao et al. (21) | ✓ | ✓ | * | 18 | SVM | |
Jawaid et al. (22) | ✓ | * | 32 | SVM | ||
Wei et al. (23) | ✓ | * | 83 | LC | ||
Yamak et al. (24) | ✓ | - | 3 | E | ||
Kelm et al. (25) | ✓ | ✓ | * | 229 | RF | |
Zuluaga et al. (26) | ✓ | 1/13† | 14/2 | SVM |
Check marks in (A) indicate detection (Detect) or characterization (Characterize) of plaque, check marks in (B) indicate analysis in dedicated non-contrast-enhanced calcium scoring CT (CSCT), chest CT (Chest CT) or coronary CT angiography (CCTA) images. The number of patients included for method development (Training) and evaluation (Testing) are listed,
indicates cross-validation and - indicates training on non-patient data. The classifier with which the primary result was obtained is indicated (Classifier, see section 2 for abbreviations).
A total of 15 scans was divided into training sets ranging from 1 to 13 and respective test sets comprised of the remaining scans.