Table 2.
Global and regional apparent uptake differences (using equation 1) between the three CT attenuation corrected cardiac uptakes. The cardiac uptake computed using the end-expiration CT (UpCTEXPIR) is the reference. Negative signs imply the value is lower than for UpCTEXPIR.
| Regional Uptake Bias (%)UpCTEXPIR as reference | UpCTMIDVOL | UpCTINSPIR |
|---|---|---|
| Global | −14.7 ± 8.2 | −18.0 ± 11.0 |
|
| ||
| Apex | −8.3 ± 6.3 | −16.8 ± 14.2 |
|
| ||
| Apical slice | ||
| Anterior | −17.6 ± 17.5 | −30.2 ± 23.6 |
| Inferior | −2.9 ± 5.7 | −7.9 ± 8.5 |
| Lateral | −14.1± 12.4 | −25.5 ± 17.6 |
| Septal | −2.4 ± 5.7 | −7.1 ± 8.3 |
|
| ||
| Mid slice | ||
| Anterior | −14.8 ± 12.4 | −26.7 ± 19.5 |
| Inferior | −4.5 ± 7.2 | −11.9 ± 9.8 |
| Lateral | −14.7 ± 8.5 | −29.0 ± 15.2 |
| Septal | −3.1 ± 4.4 | −8.1 ± 7.7 |
|
| ||
| Basal slice | ||
| Anterior | −10.3 ± 7.2 | −18.4 ± 13.5 |
| Inferior | −6.7 ± 7.0 | −13.2 ± 10.4 |
| Lateral | −12.3 ± 7.8 | −24.4 ± 13.6 |
| Septal | −5.1 ± 4.9 | −9.3 ± 7.2 |
All p<0.05