在对早期胃癌患者进行腹腔镜前哨淋巴结定位时，必须消除穿透性的影响，因为放射示踪剂在这项技术中至关重要。
To apply laparoscopic SN mapping to early-stage gastric cancer patients, the shine-through effect must be eliminated because radiotracers are essential for this method.
结论对仪器与环境、位置与定位、示踪剂与注射等环节质量控制后，可提高放射性肾图诊断质量。
Conclusion After the quality control of the equipment, location, tracer and injection, the quality of the diagnosis of renogram can be improved.
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