University Department of Radiology, Diagnostic and Interventional Radiology, Hoppe-Seyler-Str. 3, 72076, Tuebingen, Germany.
Institute for Clinical Epidemiology and Applied Biometry,University of Tuebingen, Silcherstraße 5, 72076, Tuebingen, Germany.
Eur J Radiol. 2017 Sep;94:148-153. doi: 10.1016/j.ejrad.2017.06.020. Epub 2017 Jul 1.
The impact of preoperative MRI on re-excisions and mastectomy rate is discussed controversially in the literature. Aim of this study was to evaluate the effect of preoperative breast MRI on the surgical procedure and rate of repeated surgeries.
A total of 991 consecutive patients in the years 2009 and 2010 with 1036 primary breast cancers were retrospectively analyzed. Sixty percent (599 patients with 626 cancers) received preoperative breast MRI. Planned surgical procedures before and after MRI and numbers of repeated surgeries in patients with (MR+ ) and without preoperative MRI (MR-) were compared.
The result of preoperative MRI changed the surgical procedure in 25% (157/626) of the cases. In 81% (127/157), MRI was beneficial for the patients, as otherwise occult carcinomas were removed (n=122) or further biopsy could be prevented (n=5). Mastectomy rates did not differ between MR+ and MR- group (39% vs. 39%). On multiple regression analysis, the MR+ group had a lower chance for repeated surgery (p<0.05).
Preoperative MRI could lower the chance for repeated surgery in patients with primary breast cancer. The rate of mastectomy did not differ between patients undergoing preoperative MRI and those who did not.
术前 MRI 对再次切除术和乳房切除术率的影响在文献中存在争议。本研究旨在评估术前乳房 MRI 对手术程序和重复手术率的影响。
回顾性分析了 2009 年和 2010 年共 991 例 1036 例原发性乳腺癌患者的资料。60%（599 例患者，626 例癌症）接受了术前乳房 MRI。比较了术前 MRI 前后的计划手术程序，以及有（MR+）和无术前 MRI（MR-）患者的重复手术次数。
术前 MRI 改变了 25%（157/626）病例的手术程序。在 81%（127/157）的病例中，MRI 对患者有益，因为否则可能会切除隐匿性癌（n=122）或可避免进一步活检（n=5）。MR+和 MR-组的乳房切除术率无差异（39%vs.39%）。多元回归分析显示，MR+组再次手术的机会较低（p<0.05）。
术前 MRI 可降低原发性乳腺癌患者重复手术的机会。接受术前 MRI 和未接受术前 MRI 的患者之间的乳房切除术率没有差异。
