Department of Plastic, Hand, and Reconstructive Surgery, Medizinische Hochschule Hannover, Carl-Neuberg-Str., 130625 Hannover, Germany.
J Digit Imaging. 2010 Oct;23(5):603-10. doi: 10.1007/s10278-009-9264-y.
As lipofilling of the female breast is becoming more popular in plastic surgery, the use of MRI to assess breast volume has been employed to control postoperative results. Therefore, we sought to evaluate the accuracy of magnetic resonance imaging (MRI)-based breast volumetry software tools by comparing the measurements of silicone implant augmented breasts with the actual implant volume specified by the manufacturer. MRI-based volume analysis was performed in eight bilaterally augmented patients (46 ± 9 years) with three different software programs (Brainlab© I plan 2.6 neuronavigation software; mass analysis, version 5.3, Medis©; and OsiriX© v.3.0.2. 32-bit). The implant volumes analysed by the BrainLab© software had a mean deviation of 2.2 ± 1.7% (r = 0.99) relative to the implanted prosthesis. OsiriX© software analysis resulted in a mean deviation of 2.8 ± 3.0% (r = 0.99) and the Medis© software had a mean deviation of 3.1 ± 3.0% (r = 0.99). Overall, the volumes of all analysed breast implants correlated very well with the real implant volumes. Processing time was 10 min per breast with each system and 30 s (OsiriX©) to 5 min (BrainLab© and Medis©) per silicone implant. MRI-based volumetry is a powerful tool to calculate both native breast and silicone implant volume in situ. All software solutions performed well and the measurements were close to the actual implant sizes. The use of MRI breast volumetry may be helpful in: (1) planning reconstructive and aesthetic surgery of asymmetric breasts, (2) calculating implant size in patients with missing documentation of a previously implanted device and (3) assessing post-operative results objectively.
随着脂肪隆乳术在整形外科学中越来越受欢迎，使用 MRI 来评估乳房体积已被用于控制术后结果。因此，我们试图通过将硅胶植入物隆胸的测量值与制造商规定的实际植入物体积进行比较，来评估基于 MRI 的乳房体积分析软件工具的准确性。对 8 例双侧隆胸患者（46 ± 9 岁）进行了基于 MRI 的体积分析，使用了 3 种不同的软件程序（Brainlab© I plan 2.6 神经导航软件；mass analysis，version 5.3，Medis©；和 OsiriX© v.3.0.2. 32-bit）。BrainLab© 软件分析的植入物体积相对于植入假体的平均偏差为 2.2 ± 1.7%（r = 0.99）。OsiriX© 软件分析的结果为平均偏差 2.8 ± 3.0%（r = 0.99），Medis© 软件的平均偏差为 3.1 ± 3.0%（r = 0.99）。总体而言，所有分析的乳房植入物的体积与实际植入物体积非常吻合。每个系统对每侧乳房的处理时间为 10 分钟，每个硅胶植入物的时间为 30 秒（OsiriX©）至 5 分钟（BrainLab© 和 Medis©）。基于 MRI 的体积测量是计算原位自然乳房和硅胶植入物体积的强大工具。所有软件解决方案都表现良好，测量值接近实际植入物尺寸。MRI 乳房体积测量可用于：（1）计划不对称乳房的重建和美容手术，（2）计算缺失先前植入装置记录的患者的植入物大小，以及（3）客观评估术后结果。
