Conclusions 3d acquisition can reduce the acquisition time in clinical study. Under ordinary condition, the imaging quality of 3d makes no difference with 2d, but it is better than 2d in lower dose.

结论3d符合采集可减少临床采集时间，其图像质量在正常剂量条件下与2d采集相比无明显降低，但在低剂量条件下，3d图像质量优于2d图像。

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Conclusions 3d acquisition can reduce the acquisition time in clinical study. Under ordinary condition, the imaging quality of 3d makes no difference with 2d, but it is better than 2d in lower dose.

结论3d符合采集可减少临床采集时间，其图像质量在正常剂量条件下与2d采集相比无明显降低，但在低剂量条件下，3d图像质量优于2d图像。

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