Correlation of middle cerebral artery velocities measured by transcranial Doppler ultrasonography with conjunctival blood flow velocities measured by computer-assisted intravital microscopy
| . | High MCA velocity (≥ 200 cm/sec) . | Conditional MCA velocity (170-199 cm/sec) . | Unmeasurable MCA velocity . | Normal MCA velocity (< 170 cm/sec) . |
|---|---|---|---|---|
| Total no. of SCD patients (n = 18) | 4 | 3 | 1 | 10 |
| Abnormal SCD conjunctival velocity (≤ 0.2 mm/sec) | 4 | 2 | 1 | 2 |
| Normal SCD conjunctival velocity (1.1-2.4 mm/sec) | 0 | 1 | 0 | 8 |
| . | High MCA velocity (≥ 200 cm/sec) . | Conditional MCA velocity (170-199 cm/sec) . | Unmeasurable MCA velocity . | Normal MCA velocity (< 170 cm/sec) . |
|---|---|---|---|---|
| Total no. of SCD patients (n = 18) | 4 | 3 | 1 | 10 |
| Abnormal SCD conjunctival velocity (≤ 0.2 mm/sec) | 4 | 2 | 1 | 2 |
| Normal SCD conjunctival velocity (1.1-2.4 mm/sec) | 0 | 1 | 0 | 8 |
SCD indicates sickle cell disease. See Table 1 for other abbreviation.