使用核磁共振成像引导的 SCOUT® 定位:初步经验

IF 2 Q3 ONCOLOGY Journal of Breast Imaging Pub Date : 2024-09-11 DOI:10.1093/jbi/wbae025
Brittany Z Dashevsky, Pamela Yan, Tie Liang, Bruce L Daniel
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引用次数: 0

摘要

目标:美国食品和药物管理局于 2022 年 4 月批准了核磁共振兼容无线 SCOUT 定位系统。本研究旨在评估磁共振成像引导下 SCOUT 定位的可行性。我们介绍了采用磁共振成像引导的 SCOUT 定位的初步经验,并将其与磁共振成像引导的有线定位进行了比较:回顾性审查了 2022 年 10 月至 2023 年 7 月期间在我院接受 MRI 引导下 SCOUT 或线定位的所有患者的电子病历和影像学资料。采用2样本比例和Wilcoxon秩和检验进行统计分析:研究期间共有 14 例磁共振引导下的 SCOUT 和 23 例磁共振引导下的导线定位。所有 SCOUT 均在无并发症的情况下放置,并被认为与靶点距离足够近。在并发症发生率(P = .25)或从磁共振成像检测到异常到手术的天数(P = .82)方面,SCOUT 和导线病例没有明显差异。71%(10/14)的病例在活检时放置 SCOUT。57%(8/14)的 SCOUT 病例用于保乳手术 (BCS),而有线病例的这一比例为 100% (23/23)(P 结论:SCOUT 和有线病例之间的差异为 0.82:磁共振成像引导下的 SCOUT 定位是可行的,可替代磁共振成像引导下的导线定位,且无 SCOUT 并发症报道。在活组织检查时放置 SCOUT 可避免进行额外的手术,但预测是否合适具有挑战性,60%(6/10)在 MRI 引导活组织检查时放置的 SCOUT 未用于随后的定位手术。
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SCOUT® Localization Using MRI Guidance: Initial Experience.

Objective: The Food and Drug Administration approved the MRI-compatible wireless SCOUT localization system in April 2022. The purpose of this study was to evaluate feasibility of SCOUT localization under MRI guidance. We present our initial experience adopting MRI-guided SCOUT localization and compare it to MRI-guided wire localization.

Methods: Electronic medical records and imaging were retrospectively reviewed for all patients who underwent MRI-guided SCOUT or wire localization at our institution between October 2022 and July 2023. Statistical analysis was performed using 2-sample proportion and Wilcoxon rank-sum tests.

Results: There were 14 MRI-guided SCOUT and 23 MRI-guided wire localization cases during the study period. All SCOUTs were placed without complication and were considered to be in adequate proximity to the target. There was no significant difference in complication rate (P = .25) or days lapsed from MRI-detected abnormality to surgery (P = .82) between SCOUT and wire cases. SCOUT was placed at time of biopsy for 71% (10/14) of cases. 57% (8/14) of SCOUT cases were used for breast conservation surgery (BCS) compared to 100% (23/23) of wire cases (P <.01), with all 6 SCOUTs not used for BCS placed at time of biopsy.

Conclusion: MRI-guided SCOUT localization is feasible and offers an alternative to MRI-guided wire localization, with no SCOUT complications reported. SCOUT placement at time of biopsy obviates the need for an additional procedure, but predicting appropriateness is challenging, with 60% (6/10) of SCOUTs placed at time of MRI-guided biopsy not used for subsequent localization surgery.

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CiteScore
3.40
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81
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