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Comparison of Absorbed Radiation Dose (ARD) (mGy) for radiosensitive organs (Lung, Breast and Thyroid) between prospective imaging at 320-row MDCT versus prospective/step & shoot method at 64-row MDCT adjusting the effects of tube voltages and heart rates.
| Locations | 320-row mode | 64-row mode | P value |
|---|---|---|---|
| Left Lung | 6.102 | 21.841 | <0.001 |
| Left Breast | 6.728 | 19.687 | <0.001 |
| Thyroid (Left lobe-26) | 0.208 | 0.913 | <0.001 |
