肺动脉CT血管成像在双源CT大螺距模式下的低辐射剂量与低对比剂量研究
폐동맥CT혈관성상재쌍원CT대라거모식하적저복사제량여저대비제량연구
Study of Low Radiation Exposure Dose and Low Contrast Medium Dose in Pulmonary CT Angiography with High-Pitch Spiral Acquisition Mode of Dual Source CT
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