目的探讨乳腺影像报告及数据系统(breast imaging-report and data system,BI-RADS)词典对微钙化标准描述词语的阳性预测值及其诊断价值。方法复阅69例数字化乳腺X线摄影发现BI-RADS 3～5类微钙化患者,均对其微钙化进行描述,同时利用数...目的探讨乳腺影像报告及数据系统(breast imaging-report and data system,BI-RADS)词典对微钙化标准描述词语的阳性预测值及其诊断价值。方法复阅69例数字化乳腺X线摄影发现BI-RADS 3～5类微钙化患者,均对其微钙化进行描述,同时利用数字化乳腺X线三维立体导丝定位技术,对不能扪及的微钙化进行术前定位,并与病理结果进行对照研究,总结分析用BI-RADS词典对乳腺微钙化进行描述词语阳性预测值。结果 69例乳腺微钙化病例中,良性41例,恶性28例,良性钙化以针尖样(占7.1%)、粗糙不均(占22.2%)、无定形微钙化(7.8%)为主;恶性以细小多形性(60.9%)、线样分支样(100%)为主。结论 BI-RADS词典对乳腺微钙化的描述对临床阳性预测值有价值。展开更多
A theoretical analysis of TCS is provided to explain the structure evolution along the filament during processing.This analysis based on the spinning process kinematics incorporates the constitutive equation of PET po...A theoretical analysis of TCS is provided to explain the structure evolution along the filament during processing.This analysis based on the spinning process kinematics incorporates the constitutive equation of PET polymer, a convection and radiation combining procedure in the thermal channel, and takinginto account the nonisothermal crystallization kinetics. The characteristics of the fiber so-produced are compared with those produced by HGS.展开更多
文摘目的探讨乳腺影像报告及数据系统(breast imaging-report and data system,BI-RADS)词典对微钙化标准描述词语的阳性预测值及其诊断价值。方法复阅69例数字化乳腺X线摄影发现BI-RADS 3～5类微钙化患者,均对其微钙化进行描述,同时利用数字化乳腺X线三维立体导丝定位技术,对不能扪及的微钙化进行术前定位,并与病理结果进行对照研究,总结分析用BI-RADS词典对乳腺微钙化进行描述词语阳性预测值。结果 69例乳腺微钙化病例中,良性41例,恶性28例,良性钙化以针尖样(占7.1%)、粗糙不均(占22.2%)、无定形微钙化(7.8%)为主;恶性以细小多形性(60.9%)、线样分支样(100%)为主。结论 BI-RADS词典对乳腺微钙化的描述对临床阳性预测值有价值。
文摘A theoretical analysis of TCS is provided to explain the structure evolution along the filament during processing.This analysis based on the spinning process kinematics incorporates the constitutive equation of PET polymer, a convection and radiation combining procedure in the thermal channel, and takinginto account the nonisothermal crystallization kinetics. The characteristics of the fiber so-produced are compared with those produced by HGS.
