CT specifics and CT-ECV protocols of the studies included in the systematic review and meta-analysis
| First author, year . | CT scanner . | ECV used for outcome . | Timing of late acquisition (min) . | Myocardial ECV measurement method . | ECV cut-off identification method . | ECV cut-off (%) . |
|---|---|---|---|---|---|---|
| Hammer M, 202115 | Brilliance iCT, Philips Healthcare (256-slice system) | Septal ECV | 7 | ECV subtraction Infarcted segments excluded | ROC curve | 40.8 |
| Tamarappoo B, 202020 | SOMATOM Definition Flash, Siemens Healthcare | Mean ECV | 5 | ECV subtraction Infarcted segments excluded | ROC curve | 33 |
| Han D, 202121 | SOMATOM Definition Flash; Siemens Healthcare | Mean ECV | 5 | ECV subtraction Infarcted segments excluded | ROC curve | 30 |
| Suzuki M, 202122 | SOMATOM Force, Siemens Healthcare | Mean ECV | 5 | ECV iodine | Median ECV | 27.8 |
| Scully PR, 202223 | SOMATOM Force, Siemens Healthcare | Mean ECV | 3/5 | ECV subtraction | 3rd quartile ECV | 29.7 |
| Ishiyama M, 202324 | SOMATOM Force, Siemens Healthcare | Mean ECV | 5 | ECV subtraction | Median ECV | 32 |
| Vignale D, 202325 | SOMATOM Definition Flash, Siemens Healthcare | Septal ECV | 5 | ECV subtraction Infarcted segments excluded | 3rd quartile ECV | 31.3 |
| Koike H, 202426 | SOMATOM Force, Siemens Healthcare | Septal ECV | 3 | ECV subtraction Infarcted segments excluded | Median ECV | 28.5 |
| Takahashi M, 202427 | Aquilion One/ViSION Edition, Canon Medical Systems (320-row multidetector CT) or Revolution CT Apex, GE Healthcare (256-row multidetector CT) | Mean ECV | 6 | ECV subtraction | ROC curve | 32.6 |
| Patel KP, 202428 | SOMATOM Force, Siemens Healthcare | Epicardial ECV | 3 | ECV subtraction If infarcted segments, patients were excluded | Median ECV | 27.1 |
| First author, year . | CT scanner . | ECV used for outcome . | Timing of late acquisition (min) . | Myocardial ECV measurement method . | ECV cut-off identification method . | ECV cut-off (%) . |
|---|---|---|---|---|---|---|
| Hammer M, 202115 | Brilliance iCT, Philips Healthcare (256-slice system) | Septal ECV | 7 | ECV subtraction Infarcted segments excluded | ROC curve | 40.8 |
| Tamarappoo B, 202020 | SOMATOM Definition Flash, Siemens Healthcare | Mean ECV | 5 | ECV subtraction Infarcted segments excluded | ROC curve | 33 |
| Han D, 202121 | SOMATOM Definition Flash; Siemens Healthcare | Mean ECV | 5 | ECV subtraction Infarcted segments excluded | ROC curve | 30 |
| Suzuki M, 202122 | SOMATOM Force, Siemens Healthcare | Mean ECV | 5 | ECV iodine | Median ECV | 27.8 |
| Scully PR, 202223 | SOMATOM Force, Siemens Healthcare | Mean ECV | 3/5 | ECV subtraction | 3rd quartile ECV | 29.7 |
| Ishiyama M, 202324 | SOMATOM Force, Siemens Healthcare | Mean ECV | 5 | ECV subtraction | Median ECV | 32 |
| Vignale D, 202325 | SOMATOM Definition Flash, Siemens Healthcare | Septal ECV | 5 | ECV subtraction Infarcted segments excluded | 3rd quartile ECV | 31.3 |
| Koike H, 202426 | SOMATOM Force, Siemens Healthcare | Septal ECV | 3 | ECV subtraction Infarcted segments excluded | Median ECV | 28.5 |
| Takahashi M, 202427 | Aquilion One/ViSION Edition, Canon Medical Systems (320-row multidetector CT) or Revolution CT Apex, GE Healthcare (256-row multidetector CT) | Mean ECV | 6 | ECV subtraction | ROC curve | 32.6 |
| Patel KP, 202428 | SOMATOM Force, Siemens Healthcare | Epicardial ECV | 3 | ECV subtraction If infarcted segments, patients were excluded | Median ECV | 27.1 |
ECV, extracellular volume; CT, computed tomography; ECV subtraction, subtraction-derived method; ECV iodine, iodine density–derived method; ROC, receiver-operating characteristic.
CT specifics and CT-ECV protocols of the studies included in the systematic review and meta-analysis
| First author, year . | CT scanner . | ECV used for outcome . | Timing of late acquisition (min) . | Myocardial ECV measurement method . | ECV cut-off identification method . | ECV cut-off (%) . |
|---|---|---|---|---|---|---|
| Hammer M, 202115 | Brilliance iCT, Philips Healthcare (256-slice system) | Septal ECV | 7 | ECV subtraction Infarcted segments excluded | ROC curve | 40.8 |
| Tamarappoo B, 202020 | SOMATOM Definition Flash, Siemens Healthcare | Mean ECV | 5 | ECV subtraction Infarcted segments excluded | ROC curve | 33 |
| Han D, 202121 | SOMATOM Definition Flash; Siemens Healthcare | Mean ECV | 5 | ECV subtraction Infarcted segments excluded | ROC curve | 30 |
| Suzuki M, 202122 | SOMATOM Force, Siemens Healthcare | Mean ECV | 5 | ECV iodine | Median ECV | 27.8 |
| Scully PR, 202223 | SOMATOM Force, Siemens Healthcare | Mean ECV | 3/5 | ECV subtraction | 3rd quartile ECV | 29.7 |
| Ishiyama M, 202324 | SOMATOM Force, Siemens Healthcare | Mean ECV | 5 | ECV subtraction | Median ECV | 32 |
| Vignale D, 202325 | SOMATOM Definition Flash, Siemens Healthcare | Septal ECV | 5 | ECV subtraction Infarcted segments excluded | 3rd quartile ECV | 31.3 |
| Koike H, 202426 | SOMATOM Force, Siemens Healthcare | Septal ECV | 3 | ECV subtraction Infarcted segments excluded | Median ECV | 28.5 |
| Takahashi M, 202427 | Aquilion One/ViSION Edition, Canon Medical Systems (320-row multidetector CT) or Revolution CT Apex, GE Healthcare (256-row multidetector CT) | Mean ECV | 6 | ECV subtraction | ROC curve | 32.6 |
| Patel KP, 202428 | SOMATOM Force, Siemens Healthcare | Epicardial ECV | 3 | ECV subtraction If infarcted segments, patients were excluded | Median ECV | 27.1 |
| First author, year . | CT scanner . | ECV used for outcome . | Timing of late acquisition (min) . | Myocardial ECV measurement method . | ECV cut-off identification method . | ECV cut-off (%) . |
|---|---|---|---|---|---|---|
| Hammer M, 202115 | Brilliance iCT, Philips Healthcare (256-slice system) | Septal ECV | 7 | ECV subtraction Infarcted segments excluded | ROC curve | 40.8 |
| Tamarappoo B, 202020 | SOMATOM Definition Flash, Siemens Healthcare | Mean ECV | 5 | ECV subtraction Infarcted segments excluded | ROC curve | 33 |
| Han D, 202121 | SOMATOM Definition Flash; Siemens Healthcare | Mean ECV | 5 | ECV subtraction Infarcted segments excluded | ROC curve | 30 |
| Suzuki M, 202122 | SOMATOM Force, Siemens Healthcare | Mean ECV | 5 | ECV iodine | Median ECV | 27.8 |
| Scully PR, 202223 | SOMATOM Force, Siemens Healthcare | Mean ECV | 3/5 | ECV subtraction | 3rd quartile ECV | 29.7 |
| Ishiyama M, 202324 | SOMATOM Force, Siemens Healthcare | Mean ECV | 5 | ECV subtraction | Median ECV | 32 |
| Vignale D, 202325 | SOMATOM Definition Flash, Siemens Healthcare | Septal ECV | 5 | ECV subtraction Infarcted segments excluded | 3rd quartile ECV | 31.3 |
| Koike H, 202426 | SOMATOM Force, Siemens Healthcare | Septal ECV | 3 | ECV subtraction Infarcted segments excluded | Median ECV | 28.5 |
| Takahashi M, 202427 | Aquilion One/ViSION Edition, Canon Medical Systems (320-row multidetector CT) or Revolution CT Apex, GE Healthcare (256-row multidetector CT) | Mean ECV | 6 | ECV subtraction | ROC curve | 32.6 |
| Patel KP, 202428 | SOMATOM Force, Siemens Healthcare | Epicardial ECV | 3 | ECV subtraction If infarcted segments, patients were excluded | Median ECV | 27.1 |
ECV, extracellular volume; CT, computed tomography; ECV subtraction, subtraction-derived method; ECV iodine, iodine density–derived method; ROC, receiver-operating characteristic.
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