Obstetrics and Gynecology, University Hospital Freiburg.
Ultraschall Med. 2011 Oct;32(5):497-503. doi: 10.1055/s-0029-1245797. Epub 2011 Feb 3.
To compare video sequence and conventional freeze image documentation of breast ultrasound findings with respect to lesion assessment and the diagnostic power of established ultrasound characteristics.
Digitally stored freeze images and corresponding video sequences of 50 breast lesions were randomly arranged and interpreted by eight investigators with breast ultrasound training and experience. Established ultrasound criteria were documented on a standardized classification form for every lesion. The investigators were blinded to the clinical and radiological findings, patient characteristics including age, and lesion histology. Statistical analysis compared both groups and correlated the results with the lesion histology. A receiver operating characteristics (ROC) analysis was performed to evaluate the diagnostic performance of ultrasound criteria in lesions documented by video sequences compared to freeze images.
Breast lesions were assessed almost identically in video sequences and freeze images. Only the features echogenic halo, orientation, and margin varied among both groups. The dynamic features compressibility and mobility were highly statistically significant correlated with the lesion histology in the video sequence interpretation (p < 0.0001). ROC analysis revealed almost identical diagnostic accuracy in both groups (area under the curve 0.719 for video sequences and 0.762 for freeze images).
Video sequences are an appropriate tool to document lesions in breast ultrasound. In contrast to our hypothesis, however, this tool did not improve the diagnostic power of established ultrasound characteristics compared to freeze image documentation.
比较乳房超声检查结果的视频序列和传统冻结图像记录，评估病变和已建立的超声特征的诊断能力。
随机排列 50 个乳房病变的数字存储冻结图像和相应的视频序列，并由 8 名具有乳房超声培训和经验的研究人员进行解释。对每个病变的标准分类表上记录了已建立的超声标准。研究人员对临床和放射学发现、患者特征（包括年龄）和病变组织学均不知情。统计分析比较了两组结果，并与病变组织学相关联。进行了接收者操作特征（ROC）分析，以评估视频序列记录的超声标准与冻结图像相比的诊断性能。
视频序列和冻结图像对乳房病变的评估几乎相同。仅特征回声晕、方位和边界在两组之间存在差异。在视频序列解释中，动态特征可压缩性和活动性与病变组织学高度相关（p < 0.0001）。ROC 分析显示两组的诊断准确性几乎相同（视频序列的曲线下面积为 0.719，冻结图像为 0.762）。
视频序列是记录乳房超声检查中病变的合适工具。然而，与我们的假设相反，与冻结图像记录相比，该工具并未提高已建立的超声特征的诊断能力。
