TABLE 2.
Technique details of the studies included in the meta‐analysis
| Study | Scanner | Head coil | Sequence | TR/TE (ms) | ST (mm) | FWHM (mm) | Threshold | Number of coordinates |
|---|---|---|---|---|---|---|---|---|
| Li et al. (2017) | Siemens (3.0 T) MRI | 8‐channel phase‐array | EPI | 2000/30 | 5 | 6 | p < .05 (corrected) | 5 |
| Ning et al. (2017) | Siemens (3.0 T) MRI | NA | EPI | 2000/30 | 3.50 | NA | p < .05 (corrected) | 5 |
| Wang et al. (2016) | GE (3.0 T) MRI | NA | EPI | 2000/40 | 4 | 4 | p < .05 (corrected) | 16 |
| Wei et al. (2022) | Philips (3.0 T) MRI | 8‐channel | EPI | 2000/30 | 3.50 | 6 | p < .001 (uncorrected) | 5 |
| Zhang et al. (2017) | Siemens (3.0 T) MRI | 12‐channel | GRE‐EPI | 2000/30 | 3.50 | 6 | p < .05 (corrected) | 2 |
| Kim et al. (2021) | Siemens (3.0 T) MRI | 12‐channel | EPI | 2000/30 | 3.75 | 6 | p < .05 (corrected) | 3 |
| Li et al. (2020) | Siemens (3.0 T) MRI | 8‐channel phase‐array | EPI | 2000/30 | 5 | 8 | p < .05 (corrected) | 4 |
| Wang et al. (2016) | GE (3.0 T) MRI | NA | EPI | 2000/40 | 4 | 4 | p < .05 (corrected) | 6 |
| Yang et al. (2022) | GE (3.0 T) MRI | 24‐channel | GRE‐SS‐EPI | 2400/30 | 3 | 6 | p < .05 (corrected) | 2 |
| Chen et al. (2019) | Siemens (3.0 T) MRI | NA | NA | 2000/30 | 4 | 8 | p < .05 (corrected) | 14 |
| Chen et al. (2019) | Siemens (3.0 T) MRI | NA | NA | 2000/30 | 4 | 8 | p < .05 (corrected) | 10 |
| Chen et al. (2019) | Siemens (3.0 T) MRI | NA | NA | 2000/30 | 4 | 8 | p < .05 (corrected) | 7 |
| Lei et al. (2021) | Siemens (3.0 T) MRI | NA | NA | 2300/30 | 3.70 | 6 | p < .01 (corrected) | 2 |
| Li et al. (2020) | Siemens (3.0 T) MRI | 8‐channel phase‐array | EPI | 2000/30 | 5 | 8 | p < .05 (corrected) | 4 |
| Liu et al. (2021) | United Imaging (3.0 T) MRI | 12‐channel | EPI | 2000/30 | 3.50 | 6 | p < .05 (corrected) | 2 |
| Meylakh et al. (2018) | Philips (3.0 T) MRI | NA | EPI | 2000/30 | 4 | 3 | p < .05 (corrected) | 3 |
| Wei et al. (2022) | Philips (3.0 T) MRI | 8‐channel | EPI | 2000/30 | 3.50 | 6 | p < .001 (uncorrected) | 1 |
| Zhang et al. (2016) | Siemens (3.0 T) MRI | 12‐channel | GRE‐EPI | 2000/30 | 3.50 | 8 | p < .05 (corrected) | 2 |
| Zhang et al. (2017) | Siemens (3.0 T) MRI | 12‐channel | GRE‐EPI | 2000/30 | 3.50 | 6 | p < .05 (corrected) | 3 |
| Zhao et al. (2013) | Siemens (3.0 T) MRI | 8‐channel phase‐array | EPI | 2000/30 | 5 | 4 | p < .01 (corrected) | 59 |
| Zhao et al. (2013) | Siemens (3.0 T) MRI | 8‐channel phase‐array | EPI | 2000/30 | 5 | 4 | p < .01 (corrected) | 23 |
| Zhao et al. (2014) | GE (3.0 T) MRI | 8‐channel phase‐array | EPI | 2000/30 | 5 | 4 | p < .05 (corrected) | 22 |
| Chen et al. (2018) | GE (3.0 T) MRI | 8‐channel quadrature | pCASL | 5128/15.9 | 3 | 6 | p < .05 (uncorrected) | 1 |
| Meylakh et al. (2020) | Philips (3.0 T) MRI | NA | pCASL | 5310/12.7 | 3 | 6 | p < .05 (corrected) | 3 |
| Michels et al. (2019) | Philips (3.0 T) MRI | 15‐element | 2D pCASL | 4200/16 | 6 | 6 | p < .05 (corrected) | 1 |
| Michels et al. (2019) | Philips (3.0 T) MRI | 15‐element | 2D pCASL | 4200/16 | 6 | 6 | p < .05 (corrected) | 2 |
| Zhang et al. (2021) | Philips (3.0 T) MRI | 8‐channel digital | pCASL | 4000/11 | 4 | 8 | p < .05 (corrected) | 3 |
| Kassab et al. (2009) | Siemens PET | — | — | — | NA | NA | p < .001 (uncorrected) | 6 |
| Kim et al. (2010) | Philips PET | — | — | — | 2 | 12 | p < .001 (uncorrected) | 15 |
| Lisicki et al. (2019) | Philips PET | — | — | — | NA | 8 | p < .001 (uncorrected) | 40 |
| Magis et al. (2017) | Philips PET | — | — | — | NA | 8 | p < .001 (uncorrected) | 15 |
Abbreviations: D, dimensional; EPI, echo planar imaging; FWHM, full‐width at half‐maximum; GRE, gradient echo; MRI, magnetic resonance imaging; NA, not available; pCASL, pseudo‐continuous arterial spin labeling; PET, positron emission tomography; SS, single shot; ST, slice thickness; T, Tesla; TE, echo time; TR, repetition time.