Table 4.
Type of ICH detected on T2*GRE/SWI and proportion missed on DWI b0
| Type | No. detected on T2*GRE/SWI | No. missed on DWI b0 (%) |
|---|---|---|
| Class I | ||
| HI1 | 57 | 39 (68%) |
| HI2 | 96 | 35 (36%) |
| PH1 | 56 | 16 (29%) |
| Class II | ||
| PH2 | 49 | 1 (2%) |
| Class III | ||
| rPH | 2 | 2 (100%) |
| IVH | 15 | 11 (73%) |
| SAH | 25 | 22 (88%) |
| SDH | 2 | 1 (50%) |
| Total* | 302 | 127 (42%) |
*Total number of ICH exceeds 277 because multiple ICH types are present in a subgroup of patients (e.g., parenchymal hematoma type 2 + intraventricular hemorrhage)
GRE, gradient-recalled echo; SWI, susceptibility- weighted imaging; DWI, diffusion-weighted imaging; HI, hemorrhagic infarction; PH, parenchymal hematoma; rPH, remote parenchymal hematoma; IVH, intraventricular hemorrhage; SAH, subarachnoid hemorrhage; SDH, subdural hemorrhage