Uematsu T, Kasami M, Uchida Y, Sanuki J, Kimura K, Tanaka K, Takahashi K
Department of Diagnostic Radiology, Shizuoka Cancer Center Hospital, Naga-izumi, Shizuoka, Japan.
Acta Radiol. 2007 Jun;48(5):483-7. doi: 10.1080/02841850701280841.
Hookwire localization is the current standard technique for radiological marking of nonpalpable breast lesions. Stereotactic directional vacuum-assisted breast biopsy (SVAB) is of sufficient sensitivity and specificity to replace surgical biopsy. Wire localization for metallic marker clips placed after SVAB is needed.
To describe a method for performing computed tomography (CT)-guided hookwire localization using a radial approach for metallic marker clips placed percutaneously after SVAB.
Nineteen women scheduled for SVAB with marker-clip placement, CT-guided wire localization of marker clips, and, eventually, surgical excision were prospectively entered into the study. CT-guided wire localization was performed with a radial approach, followed by placement of a localizing marker-clip surgical excision. Feasibility and reliability of the procedure and the incidence of complications were examined.
CT-guided wire localization surgical excision was successfully performed in all 19 women without any complications. The mean total procedure time was 15 min. The median distance on CT image from marker clip to hookwire was 2 mm (range 0-3 mm).
CT-guided preoperative hookwire localization with a radial approach for marker clips after SVAB is technically feasible.
钩丝定位是目前对不可触及乳腺病变进行放射学标记的标准技术。立体定向真空辅助乳腺活检（SVAB）具有足够的敏感性和特异性，可替代手术活检。SVAB后放置金属标记夹需要进行钢丝定位。
描述一种使用径向入路对SVAB后经皮放置的金属标记夹进行计算机断层扫描（CT）引导下钩丝定位的方法。
19名计划进行SVAB并放置标记夹、CT引导下标记夹钢丝定位以及最终手术切除的女性前瞻性纳入本研究。采用径向入路进行CT引导下钢丝定位，随后放置定位标记夹并进行手术切除。检查该操作的可行性、可靠性及并发症发生率。
所有19名女性均成功进行了CT引导下钢丝定位手术切除，无任何并发症。平均总操作时间为15分钟。CT图像上标记夹到钩丝的中位距离为2毫米（范围0 - 3毫米）。
SVAB后对标记夹采用径向入路进行CT引导下术前钩丝定位在技术上是可行的。
