Research Article
Study on Model Iterative Reconstruction Algorithm vs. Filter Back Projection Algorithm for Diagnosis of Acute Cerebral Infarction Using CT Images
Table 2
Comparison results of perfusion indicators in gray and white matter among patients in the two groups.
| Group | Reconstruction methods | | CBV (mL/100 g) | CBF (mL/100 g/min) | MTT (s) | TTP (s) |
| A | FBP | Gray matter | 5.08 ± 0.42 | 54.23 ± 4.97 | 5.65 ± 0.76 | 18.65 ± 2.87 | White matter | 3.12 ± 0.23 | 23.32 ± 2.16 | 7.38 ± 1.12 | 19.86 ± 2.97 |
| B | FBP | Gray matter | 4.76 ± 0.45 | 61.65 ± 8.32 | 8.23 ± 1.98 | 18.74 ± 2.31 | White matter | 3.16 ± 0.72 | 31.54 ± 3.21 | 11.76 ± 2.12 | 19.23 ± 2.76 | iDose4 | Gray matter | 4.98 ± 0.47 | 53.09 ± 3.97 | 6.54 ± 1.19 | 18.54 ± 2.13 | White matter | 3.17 ± 0.64 | 25.76 ± 2.96 | 10.09 ± 2.01 | 19.76 ± 3.21 | IMR1 | Gray matter | 5.32 ± 0.71 | 51.85 ± 3.21 | 6.21 ± 0.87 | 18.65 ± 2.45 | White matter | 3.16 ± 0.42 | 23.76 ± 2.93 | 7.86 ± 1.32 | 19.93 ± 2.87 | IMR2 | Gray matter | 5.54 ± 0.89 | 51.23 ± 3.63 | 6.26 ± 0.76 | 18.65 ± 2.52 | White matter | 3.21 ± 0.41 | 23.67 ± 2.87 | 7.63 ± 1.06 | 19.78 ± 2.76 | IMR3 | Gray matter | 5.39 ± 0.75 | 52.98 ± 5.87 | 6.24 ± 0.52 | 18.76 ± 2.61 | White matter | 3.23 ± 0.51 | 22.54 ± 2.12 | 7.80 ± 1.13 | 19.72 ± 2.84 |
| Z | Gray matter | 5.42 | 4.87 | 18.65 | 0.008 | White matter | 0.8 | 12.43 | 39.76 | 0.5 |
| | Gray matter | <0.001 | 0.001 | <0.001 | 1.8 | White matter | 0.72 | <0.001 | <0.001 | 0.93 |
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