Table 1 Standardized CT measurement methodology across studies
Study | Sample size | CT level | Software used | Adipose parameters measured | HU threshold definitions | Follow-up period |
|---|---|---|---|---|---|---|
Shibata et al | 1372 | Umbilicus | SliceOmatic v5.0 | SAT/VAT area, density | SAT: − 90.7 HU (M), − 94.3 HU (F); VAT: − 71.2 HU (M), − 75.7 HU (F) | 768 days |
McInerney et al | 3174 | L3 | NR | VAT:SAT ratio | VAT:SAT ratio ≥ 1 | 14.1 months |
Pekar et al | 866 | L3 | AutoMATiCA (NN) | SMI, VAT/SAT density | VAT: > − 93.27 HU (M), > − 95.02 HU (F); SAT: > − 94.03 HU (M), > − 96.87 HU (F) | 5.89 years |
Demirel et al | 500 | L3 | SliceOmatic v5.0 | TMA, VAT | Youden index | 5Â years |
Heidari et al | 415 | L3 | MATLAB-based | MFI, SMI | NR | Length of stay |
Okuno et al | 100 | Umbilicus | 320-row CT | TFA, VFA, SFA | SFA: 92.6 cm2 | 665Â days |
Foldyna et al | 403 | L4 | 64 + slice CT | PM, SAT, VAT area/density | Lowest quartile for areas; Highest quartile for density | 458 days |
Somaschini et al | 168 | L3 | Slice-O-Matic v5.0 | VAT index | VATi: 57.5 cm2/m2 | 1Â year |
Guler et al | 258 | L3 | 128-detector CT | TFV, SFV, VFV | TFV: ≤ 9.1 L | 12 months |
Mancio et al | 170 | L4/L5 | NR | NR | NR | 1.2Â years |
Mok et al | 460 | L3 | CT thresholds | SMMI | Sarcopenia: SMMI < 55.4 cm2/m2 (M), < 38.9 cm2/m2 (F) | 12 months |
Higuchi et al | 234 | Umbilicus | SOMATOM Force | SFA, VFA, MPM volume | Not specified | 547Â days |
Van Erck et al | 1404 | L3 | Deep-learning | SAT/VAT density | Highest tertile vs. middle/lowest tertiles | 1,093Â days |