数字化乳腺X线摄影对图像质量的影响因素  

Factors influencing the image quality of digital mammography

作　　者：宋伟兴[1] 

机构地区：[1]天津港口医院CT室,天津300456

出　　处：《放射学实践》2013年第10期1010-1013,共4页Radiologic Practice

摘　　要：目的：探讨数字化乳腺X线摄影检查的操作技巧及对图像质量的影响因素。方法：随机抽取2012年10-12月219例数字化乳腺X线检查影像资料，均为双乳头尾位（CC）和内外斜位（MLO），共876幅图像。按照《乳腺X线摄影与质量控制》及相关文献制定的标准对图像质量进行评级，并分别对Ⅰ～Ⅲ级片率进行统计和分析。结果：数字化乳腺X线摄影的Ⅰ～Ⅲ级片率分别为94．52％、5．25％和0．23％。Ⅱ、Ⅲ级片中CC位产生皮肤皱褶8幅，乳头未成切线位9幅，后乳头线未达标准8幅；MLO位产生皮肤皱褶8幅，乳头未成切线位6幅，乳腺下皱褶未展开4幅，胸大肌显示不充分7幅。CC位中胸大肌显示率为15．53％。分析产生非Ⅰ级片的原因，由于技师操作不当造成的Ⅱ、Ⅲ级片占60．12％（29／48），其中包括摆位方法不规范造成的Ⅱ、Ⅲ级片19幅，与患者沟通不充分造成的Ⅱ、Ⅲ级片9幅，乳腺压迫不充分造成的Ⅱ、Ⅲ级片1幅；由于患者自身原因造成的Ⅱ、Ⅲ级片占39．58％（19／48）。结论：数字化乳腺X线摄影的图像质量不仅取决于技师的技术能力，还需要掌握与患者的沟通方法与技巧，实现体位设计最优化，从而为影像诊断医生提高乳腺疾病诊断的正确率、避免漏诊和误诊提供保证。Objective：To evaluate the factors that influence the image quality of digital mammography. Methods：From October to December 2012, the imaging materials of 219 cases undergone digital mammography （DM） were randomly re cruited,all had bilateral craniocaudal （CC） view and medio-lateral oblique （MLO） views, with 876 images. Image quality was evaluated according to the criterions listed in （（Mammography and related quality control）） and related literatures. Results：The images were scored as Grade Ⅰ （ 94. 52%）,Grade Ⅱ （5.25%） and Grade Ⅲ （0.23%）. Of the Grade Ⅱ and Grade Ⅲimages, there were skin fold （n= 8）, nipple in non-profile position （n= 9）, and non standardized posterior nipple line （ n = 8） on CC view ; and skin fold （ n = 8）, non-satisfactory infra mammary fold （n= 4）, nipple in non-profile position （n =6） and non-satisfactory pectoral muscle displayed （n=7） on MLO view. The pectoral muscle was shown in 15.53% of CC view images. 60.12% （29/48） of Grade Ⅱ and GradeⅢ images were caused by improper operation of technologists,in cluding insufficient communication between technologists and patients （n = 9）, insufficient compression （n = 1 ） and non- standardized positioning （n=19）. 39.58% （19/48） of the GradeⅡ and Grade Ⅲ images were due to the patient＇s own cau ses. Conclusion：Image quality of the digital mammography is not only influenced by the skill of technologists, but also by communication between the technologist and patient. Optimal positioning guarantees the diagnostic accuracy.

关 键 词：乳腺 乳房X线摄影术 摄影术 

分 类 号：R816.4[医药卫生—放射医学]