PDF(Pubmed)
Abstract：
OBJECTIVE: The objective of this retrospective study was to investigate the accuracy and feasibility of magnetic seed compared to skin tattoo in preoperative localization of impalpable breast lesions in terms of accuracy of placement, re-excision and positive margins rates, and breast/surgical specimen volume ratio.
METHODS: We retrospectively analyzed 77 patients who underwent breast conservative surgery in our center from November 2020 to November 2021, with previous localization with skin tattoo or magnetic seed.
RESULTS: Thirty-seven magnetic seeds were placed in 36 patients (48.6%) and 40 skin tattoos were performed in the remaining cases (51.4%). The seeds were placed correctly at the two-view mammogram acquired after the insertion in 97.6% (36/37) of cases. With both methods, 100% of the index lesions were completely removed and found in the surgical specimen. The reported re-excision rate was 0% for both groups. A significant difference was observed in the volume of breast parenchyma removed between the two groups, inferior in the seed group (p = 0.046), especially in case of voluminous breasts (p = 0.003) and small lesions (dimension < 8 mm, p = 0.019).
CONCLUSIONS: Magnetic seed is a non-radioactive localization technique, feasible to place, recommended in case of non-palpable breast lesions, saving the breast parenchyma removed compared with skin tattoo, without reducing the accuracy.
CONCLUSIONS: Our findings contribute to the current evidence on preoperative localization techniques for non-palpable breast lesions, highlighting the efficacy of magnetic seed localization for deep and small lesions.
CONCLUSIONS: • Magnetic seed is a non-radioactive technique for the preoperative localization of non-palpable breast lesions studied in comparison with skin tattoo. • Magnetic seed is feasible to place in terms of post-placement migration and distance from the target lesion. • Magnetic seed is recommended in case of non-palpable breast lesions, saving the breast parenchyma removed without reducing the accuracy.
METHODS: We retrospectively analyzed 77 patients who underwent breast conservative surgery in our center from November 2020 to November 2021, with previous localization with skin tattoo or magnetic seed.
RESULTS: Thirty-seven magnetic seeds were placed in 36 patients (48.6%) and 40 skin tattoos were performed in the remaining cases (51.4%). The seeds were placed correctly at the two-view mammogram acquired after the insertion in 97.6% (36/37) of cases. With both methods, 100% of the index lesions were completely removed and found in the surgical specimen. The reported re-excision rate was 0% for both groups. A significant difference was observed in the volume of breast parenchyma removed between the two groups, inferior in the seed group (p = 0.046), especially in case of voluminous breasts (p = 0.003) and small lesions (dimension < 8 mm, p = 0.019).
CONCLUSIONS: Magnetic seed is a non-radioactive localization technique, feasible to place, recommended in case of non-palpable breast lesions, saving the breast parenchyma removed compared with skin tattoo, without reducing the accuracy.
CONCLUSIONS: Our findings contribute to the current evidence on preoperative localization techniques for non-palpable breast lesions, highlighting the efficacy of magnetic seed localization for deep and small lesions.
CONCLUSIONS: • Magnetic seed is a non-radioactive technique for the preoperative localization of non-palpable breast lesions studied in comparison with skin tattoo. • Magnetic seed is feasible to place in terms of post-placement migration and distance from the target lesion. • Magnetic seed is recommended in case of non-palpable breast lesions, saving the breast parenchyma removed without reducing the accuracy.
摘要：
目的：这项回顾性研究的目的是研究磁性种子与皮肤纹身相比，在术前定位无法定位的乳腺病变的准确性和可行性，再切除和正切缘率，和乳房/手术标本体积比。
方法：我们回顾性分析了从2020年11月至2021年11月在我们中心接受乳房保守性手术的77例患者，这些患者先前使用皮肤纹身或磁性种子进行定位。
结果：在36例患者中放置了37个磁性种子（48.6％），在其余病例中进行了40个皮肤纹身（51.4％）。在97.6％（36/37）的病例中，种子正确放置在插入后获得的两视乳房X线照片上。这两种方法，100%的指示性病变被完全切除并在手术标本中发现。两组报告的再切除率均为0％。观察到两组之间的乳房实质切除体积的显着差异。在种子组中次优（p=0.046），尤其是在丰满的乳房（p=0.003）和小病变（尺寸<8毫米，p=0.019)。
结论：磁性种子是一种非放射性定位技术，可行的地方，建议在无法触及的乳房病变的情况下，与皮肤纹身相比，节省了去除的乳房薄壁组织，而不降低精度。
结论：我们的研究结果为目前关于不可触及的乳腺病变的术前定位技术提供了证据，突出磁性种子定位对深部和小病灶的功效。
结论：•磁性种子是一种非放射性技术，用于与皮肤纹身相比研究的不可触及的乳房病变的术前定位。•就放置后迁移和与目标病变的距离而言，磁性种子是可行的。•在无法触及的乳房病变的情况下，建议使用磁性种子，在不降低准确性的情况下保存乳房薄壁组织。
方法：我们回顾性分析了从2020年11月至2021年11月在我们中心接受乳房保守性手术的77例患者，这些患者先前使用皮肤纹身或磁性种子进行定位。
结果：在36例患者中放置了37个磁性种子（48.6％），在其余病例中进行了40个皮肤纹身（51.4％）。在97.6％（36/37）的病例中，种子正确放置在插入后获得的两视乳房X线照片上。这两种方法，100%的指示性病变被完全切除并在手术标本中发现。两组报告的再切除率均为0％。观察到两组之间的乳房实质切除体积的显着差异。在种子组中次优（p=0.046），尤其是在丰满的乳房（p=0.003）和小病变（尺寸<8毫米，p=0.019)。
结论：磁性种子是一种非放射性定位技术，可行的地方，建议在无法触及的乳房病变的情况下，与皮肤纹身相比，节省了去除的乳房薄壁组织，而不降低精度。
结论：我们的研究结果为目前关于不可触及的乳腺病变的术前定位技术提供了证据，突出磁性种子定位对深部和小病灶的功效。
结论：•磁性种子是一种非放射性技术，用于与皮肤纹身相比研究的不可触及的乳房病变的术前定位。•就放置后迁移和与目标病变的距离而言，磁性种子是可行的。•在无法触及的乳房病变的情况下，建议使用磁性种子，在不降低准确性的情况下保存乳房薄壁组织。
