目的探讨胃癌前哨淋巴结定位活检对手术的指导意义。

Objective To discuss the sentinel lymph node localization biopsy in early and advanced stomach neoplasms to surgery's guiding sense.

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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.

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我们发现在对位于贲门右区的前哨淋巴结进行腹腔镜定位时，存在较高的假阴性风险。

We found that during laparoscopic SN mapping there is a high risk of false negativity with SNs located in the right paracardial region.

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