CTDI was reduced and X-ray tube efficiency is improved.

它降低了X线剂量指数，提高了球管效率。

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Methods To measure the ability of 184 surgical nurses' critical thinking with CTDI-CV and then analysis the results.

方法使用评判性思维能力测量表(CTDI - CV)对184名外科护士进行评判性思维能力的测评，并对结果进行分析。

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Results:The qualities of clinical images were closely related to such parameters as CTDI, noise level, density resolution and spatial resolution.

结果：临床照片图像质量与剂量指数、噪声水平、密度分辨率和空间分辨率关系密切。

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