Concordance rates in interobserver and intraobserver agreements of MRA grading in 108 cerebral hemispheres with lesions
| First Review by First Observer | Second Review by First Observer | First Review by Second Observer | |||||
|---|---|---|---|---|---|---|---|
| MRA Grade | Number of Hemispheres | MRA Grades | Number of Hemispheres | Concordance Rate in Intraobserver Agreement | MRA Grade | Number of Hemispheres | Concordance Rate in Interobserver Agreement |
| A | 59 | A | 59 | 1.00 | A | 59 | 1.00 |
| B | 0 | B | 0 | ||||
| C | 0 | C | 0 | ||||
| D | 0 | D | 0 | ||||
| B | 26 | A | 0 | 0.85 | A | 0 | 0.85 |
| B | 22 | B | 22 | ||||
| C | 4 | C | 4 | ||||
| D | 0 | D | 0 | ||||
| C | 16 | A | 0 | 0.94 | A | 0 | 0.88 |
| B | 1 | B | 1 | ||||
| C | 15 | C | 14 | ||||
| D | 0 | D | 1 | ||||
| D | 7 | A | 0 | 1.00 | A | 0 | 0.71 |
| B | 0 | B | 0 | ||||
| C | 0 | C | 2 | ||||
| D | 7 | D | 5 | ||||
Note:—MRA indicates MR angiography.