Voigt Martina, Bolejko Anetta, Dustler Magnus
Diagnostic Radiology, Department of Translational Medicine, Lund University, Skåne University Hospital, Malmö, Sweden.
Medical Radiation Physics, Department of Translational Medicine, Lund University, Skåne University Hospital, Malmö, Sweden.
Acta Radiol Open. 2021 Dec 9;10(12):20584601211062078. doi: 10.1177/20584601211062078. eCollection 2021 Dec.
Ensuring equivalent and reproducible breast compression between mammographic screening rounds is important for the diagnostic performance of mammography, yet the extent to which screening mammography positioning and compression is reproducible for the individual woman is unknown.
To investigate the intra- and inter-rater reliability of breast compression in screening mammography.
Eleven breast-healthy women participated in the study. Two experienced radiographers independently positioned and compressed the breasts of each participant in two projections-right craniocaudal and left mediolateral oblique-and at two time points. The spatial pressure distribution on the compressed breast was measured using a pressure sensor matrix. Applied force, compressed breast thickness, force in field of view, contact area, mean pressure, and center of mass (anterio-posterior and mediolateral axes) were measured. The reliabilities of the measures between the time points for each radiographer (intra-rater reliability) and between the radiographers (inter-rater reliability) were analyzed using the intraclass correlation coefficient (ICC).
Intra- and inter-rater reliabilities from both projections demonstrated good to excellent ICCs (≥0.82) for compressed breast thickness, contact area, and anterio-posterior center of mass. The other measures produced ICCs that varied from poor (≤0.42) to excellent (≥0.93) between time points and between radiographers.
Intra- and inter-rater reliability of breast compression was consistently high for , , and but low for and . Further research is needed to establish objective and clinically useful parameters for the standardization of breast compression.
在乳腺钼靶筛查轮次之间确保等效且可重复的乳房压迫对于钼靶摄影的诊断性能很重要，但对于个体女性而言，筛查钼靶摄影的定位和压迫的可重复性程度尚不清楚。
研究筛查钼靶摄影中乳房压迫的评分者内和评分者间可靠性。
11名乳腺健康的女性参与了该研究。两名经验丰富的放射技师在两个时间点对每位参与者的乳房进行两个投照位（右侧头尾位和左侧内外斜位）的独立定位和压迫。使用压力传感器矩阵测量压迫乳房上的空间压力分布。测量施加力、压迫乳房厚度、视野内的力、接触面积、平均压力以及质心（前后轴和内外侧轴）。使用组内相关系数（ICC）分析每位放射技师在各时间点之间（评分者内可靠性）以及放射技师之间（评分者间可靠性）测量值的可靠性。
两个投照位的评分者内和评分者间可靠性对于压迫乳房厚度、接触面积和前后质心均显示出良好到优秀的ICC（≥0.82）。其他测量值在时间点之间以及放射技师之间产生的ICC从差（≤0.42）到优秀（≥0.93）不等。
乳房压迫的评分者内和评分者间可靠性对于[此处原文缺失部分内容]、[此处原文缺失部分内容]和[此处原文缺失部分内容]始终较高，但对于[此处原文缺失部分内容]和[此处原文缺失部分内容]较低。需要进一步研究以建立用于乳房压迫标准化的客观且临床有用的参数。
