乳腺X线摄影特殊体位选择对乳腺后1/3病变显示的临床价值  

Clinical Value of Special Position Selection in Mammography for the Detection of Lesions in the Posterior Band of Breast

作　　者：林袁碧 蔡裕兴[1] 徐维敏[1] 黄安红 文婵娟[1] 林淑仪 陈卫国[1] LIN Yuanbi;CAI Yuxing;XU Weimin(Department of Radiology,Nanfang Hospital of Southern Medical University,Guangzhou,Guangdong Province 510515,P.R.China)

机构地区：[1]南方医科大学南方医院放射科,广州510515

出　　处：《临床放射学杂志》2022年第1期49-53,共5页Journal of Clinical Radiology

基　　金：南方医科大学南方医院“临床研究专项”基金资助项目(编号:2018CR040)。

摘　　要：目的探讨乳腺X线摄影优化设计的特殊体位结合常规标准体位对乳腺后1/3(乳腺后带)病变显示的应用价值。方法搜集2019年7月至2020年7月行乳腺X线常规标准体位及特殊体位摄影的受试者图像资料,回顾性分析优化设计的常规标准体位、特殊体位及两者相结合对乳腺后1/3病变的图像质量、检出率、边缘及大小显示程度的影响。结果 49例受试者全为女性,共49侧乳腺发现可疑病变;病变位于乳腺上方后1/3有9例,乳腺下方后1/3有7例,乳腺内上象限后1/3有13例,乳腺内下象限后1/3有9例,乳腺内侧后1/3有11例;其中30例选择90°侧位,13例选择夸大头尾位,2例选择轻压头尾位,3例选择外内斜位和1例选择乳沟位。常规体位的平均腺体剂量(AGD)约为2.03 mGy,特殊体位AGD约为1.00 mGy,总剂量增高约10.96%。所有体位的图像质量均满足临床诊断要求;病变检出率由83.7%增至100%;病变边缘清晰显示达到临床诊断的显示率由53.1%增至96.0%;病变大小的显示率由38.7%增至83.7%。结论加摄特殊体位对乳腺后1/3病变的图像质量、检出率、边缘及大小显示程度都较单独常规摄影体位有明显的优势,明显提升乳腺X线摄影对临床诊断的需求,AGD仅轻度增高,具有较高的临床应用价值。Objective To explore the application value of the special position of mammography combined with the conventional standard position in the detection of lesions in the posterior band of breast. Methods We collected 49 subjects’ image data who underwent mammography of conventional standard position and special position from July 2019 to July 2020.Retrospective analysis was performed of the influence on the detection rate, edge, size display of posterior breast lesions optimized conventional standard position special position and the combination of the both. Results Suspicious lesions were found in 49 breasts of 49 subjects, all of whom were female. The lesions were located in the upper posterior band of the breast in 9 cases, the lower posterior band of the breast in 7 cases, the upper inner quadrant posterior band of the breast in 13 cases, the lower inner quadrant posterior band of the breast in 9 cases, and the inner side posterior band of the breast in 11 cases. Among them, 30 cases-Mediolateral/Lateromedial(ML/LM),13 cases selected the Exaggerated CranioCandal(XCC) view.2 cases-the light pressure CC view, 3 cases-Lateral Medial Oblique(LMO) view, and 1 case-the Cleavage view.Average glandular dose(AGD) was about 2.03 mGy in the conventional position and 1.00 mGy in the special position, with a total dose increase of about 10.96%.The image quality of all image met the requirements of clinical diagnosis. The detection rate increased from 83.7% to 100%.The rate of clear lesion edge display reaching clinical diagnosis increased from 53.1% to 96.0%. The detection rate of lesion size increased from 38.7% to 83.7%. Conclusion Adding a special positioning improves the image quality, detection rate, edge and size display degree of the posterior third of the breast lesions has obvious advantages compared with the conventional radiographic position alone, which significantly improves the clinical diagnosis of mammography.

关 键 词：特殊体位 检出率 后1/3病变 乳腺X线摄影 剂量 

分 类 号：R737.9[医药卫生—肿瘤]