Table 4.
Relative impact (%) of individual MRI sequences on diagnostic category, diagnostic confidence and management in 70 patients with spontaneous ICH (average of 2 observers)
| MRI sequence | Change in diagnostic category (n = 11.5) | Change in diagnostic confidence (n = 15.5) | Change in management (n = 14.5) |
|---|---|---|---|
| Conventional sequences | |||
| T1-weighted (n = 70) | 0 | 0 | 0 |
| T2-weighted (n = 69) | 13 | 6 | 10 |
| T1-weighted with gadolinium (n = 44) | 13 | 13 | 14 |
| Newer or less routine sequences | |||
| GRE (n = 69) | 43 | 52 | 48 |
| FLAIR (n = 69) | 17 | 39 | 24 |
| MRA (n = 61) | 4 | 6 | 7 |
| DWI (n = 63) | 35 | 19 | 21 |
| MRV (n = 6) | 17 | 33 | 17 |
GRE = Gradient echo imaging; FLAIR = fluid-attenuated inversion recovery; MRA = magnetic resonance angiography; MRV = magnetic resonance venography.