摘要
目的：探讨压迫式超声弹性成像是否适用于中国东北女性及乳腺病灶深度、大小、脂肪层厚度、乳房厚度对弹性图像质量的影响。方法：应用超声弹性成像对272例患者共326个乳腺病灶进行检查来评价图像质量。设定满意与不满意弹性图像的标准。采用单因素和Logistic多因素回归分析上述测量指标与图像质量的相关性。结果：在326个病灶中，300个（92%）获得了满意图像，26个（8%）未获得满意图像。单因素分析显示：不满意组乳腺病灶深层及浅层距皮距离、病灶前方脂肪层厚度、病灶所在位置乳房厚度均大于满意组（P均<0.05）。有62个病灶深层距皮距离为2.1~2.5 cm，66个浅层距皮距离为1.6~2.3 cm，不满意组病灶大于满意组，两组病灶大小差异有统计学意义（P<0.05）。多因素Logistic回归分析显示：病灶浅层距皮距离（OR：8.999，P=0.012）及病灶所在位置乳房厚度（OR：38.669，P=0.000）是影响图像质量的独立危险因素。结论：压迫式超声弹性成像适用于中国东北女性。病灶浅层距皮越深、病灶所在位置乳房越厚，图像质量越不好。在偏深病灶中，较大病灶容易获得满意图像。其中，病灶所在位置乳房厚度是较病灶浅层距皮距离影响弹性图像质量的更重要因素。
Abstract
Objective: To explore the influence of breast lesion depth, lesion size, adipose thickness, and breast thickness on the quality of compression elastography images obtained from women in northeast China. Methods: Ultrasonic elastography was conducted on 326 breast lesions in 272 women. The quality of the images was evaluated according to the criteria for satisfactory and unsatisfactory elastograms. Univariate and multivariate logistic regression analyses were conducted to determine the relationship between measured factors and the quality of the elastography images. Results: Among the 326 breast lesions, satisfactory images were obtained in 300(92%); 26(8%) were unsatisfactory. Univariate analysis revealed that the averages of the lesion depth, adispose thickness anterior to the lesion, and breast thickness at the lesion location in the unsatisfactory group were significantly higher than those of the satisfactory group(P＜0.05). There were 62 lesions with their deep edge located 2.1 cm to 2.5 cm below the skin and 66 lesions with their superficial edge located 1.6 cm to 2.3 cm below the skin; furthermore, the lesions in the unsatisfactory group were larger than those of the satisfactory group(P＜0.05). Logistic regression analysis revealed that the distance from the superficial edge of the lesions to the skin(OR: 8.999, P=0.012) and breast thickness at the lesion location(OR: 38.669; P=0.000) were the independent risk factors. Conclusion: Compression elastography is suitable for evaluating breast lesions in women from northeast China. Images were less likely to be satisfactory if they were deep or located in areas of greater breast thickness. Satisfactory images were more likely to be obtained if the deeper lesions were larger. Furthermore, breast thickness at the lesion location was a more important factor than lesion depth for obtaining a high quality elastography image.
关键词
乳腺疾病 /
超声检查
Key words
Breast diseases /
Ultrasonography
郭 嵩;李 晶;汪雪娇.
乳腺病灶深度、大小对超声弹性成像的影响[J]. 中国临床医学影像杂志. 2014, 25(1): 21-24
GUO Song;LI Jing;WANG Xue-jiao.
To explore the influence of depth and size of breast lesion on the quality of elastography images[J]. Journal of China Clinic Medical Imaging. 2014, 25(1): 21-24
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