Sittek H, Heske N, Kessler M, Britsch S, Vick C, Untch M, Reiser M
Institut für Klinische Radiologie, Klinikum Grosshadern der Ludwig-Maximilians-Universität München.
Radiologe. 2005 Mar;45(3):223-9. doi: 10.1007/s00117-005-1177-2.
The aim of this study was to develop a marker clip for use in minimally invasive diagnostics of breast cancer that can be placed and visualized during ultrasonography, mammography, and magnetic resonance imaging.
The newly developed O-twist marker consists of three 0.15-mm biocompatible nitinol wires twisted together to form rings with a diameter of 2.5 mm. These are inserted elongated into a 20G cannula. The marker is ejected into the tissue through a mandrin and reverts to its predetermined ring form.
The multiple curves of the surface render the marker highly visible. Its geometry permits secure anchorage even in larger biopsy cavities and additionally prevents migration within the tissue.
The O-twist marker is applicable for all examination modalities and biopsy needles or biopsy systems and represents an important development for breast cancer diagnostics.
本研究的目的是开发一种用于乳腺癌微创诊断的标记夹，该标记夹可在超声检查、乳房X线摄影和磁共振成像过程中放置并可视化。
新开发的O型扭曲标记夹由三根0.15毫米的生物相容性镍钛诺丝绞合在一起形成直径为2.5毫米的环。这些环被拉长插入20G套管中。标记夹通过芯棒被弹射到组织中，并恢复到其预定的环形。
标记夹表面的多条曲线使其非常显眼。其几何形状允许在较大的活检腔中牢固固定，此外还可防止在组织内迁移。
O型扭曲标记夹适用于所有检查方式以及活检针或活检系统，是乳腺癌诊断的一项重要进展。
