Makis William
Department of Diagnostic Imaging, Cross Cancer Institute, Edmonton, Canada.
BJR Case Rep. 2016 Jul 28;2(3):20150421. doi: 10.1259/bjrcr.20150421. eCollection 2016.
Expander-based breast reconstruction is a popular form of post-mastectomy reconstruction and involves the temporary subcutaneous implantation of breast tissue expanders that require periodic, incremental inflation with sterile saline by injection until the desired amount of tissue is developed. One type of tissue expander injection port system currently on the market is made of titanium and rare-earth magnets that enhance injection accuracy. These highly dense metallic materials, however, can cause attenuation artefacts on multiple gated acquisition cardiac studies. In this report, we present the cases of two breast cancer patients with artefacts on multiple gated acquisition scans, characteristic of these tissue breast expanders.
基于扩张器的乳房重建是乳房切除术后重建的一种常见形式，包括在皮下临时植入乳房组织扩张器，该扩张器需要通过注射用无菌盐水进行定期、递增式充气，直到形成所需量的组织。目前市场上的一种组织扩张器注射端口系统由钛和稀土磁体制成，可提高注射准确性。然而，这些高密度金属材料会在多次门控采集心脏研究中导致衰减伪影。在本报告中，我们介绍了两名乳腺癌患者在多次门控采集扫描中出现伪影的病例，这些伪影是这些组织乳房扩张器的特征性表现。
