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Objective To investigate the value of correction of ultrasound elastography strain rate ratio in BI-RADS grading of breast hyperplasia with fibroadenoma and breast cancer.Methods The data of 120 cases of hyperplasia of mammary gland hyperplasia with fibroadenoma and 120 cases of breast cancer confirmed by operation or biopsy in this hospital from January 2012 to October 2016 were analyzed retrospectively.The boundary,shape,echogenicity,aspect ratio,calcification,blood flow distribution,resistance index,BI-RADS grade,ultrasonic elastography strain ratio were analyzed.The value of correction of ultrasound elastography strain rate in breast hyperplasia with fibroadenoma and breast cancer BI-RADS grading ratio were investigated.Results There were significant differences in boundary,rear echo,aspect ratio,calcification,ultrasonic elastography strain ratio between breast hyperplasia with fibroadenoma and breast cancer (P＜0.05);There was no significant difference between the two groups about morphology and internal echo (P＞0.05);Breast hyperplasia with fibroadenoma were mainly 0-Ⅰ in blood flow distribution,RI＜ 0.7,breast cancer showed Ⅱ-Ⅲ,RI≥0.7,the difference was statistically significant (P＜0.05).Ultrasound elastography strain rate ratio improved the diagnose accordance rate of two groups after BI-RADS' classification correction.Conclusion Hyperplasia of mammary glands with fibroadenoma and breast cancer have overlapping ultrasound features.Ultrasound elastography strain rate ratio can improve the diagnose accordance rate of two groups after BI-RADS' classification correction,which has certain clinical value.
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Objective:To compare the diagnostic value of strain ratio correction in ultrasound elasticity imaging and ultrasound-guided percutaneous biopsy for the diagnosis of breast imaging reporting and data system (BI-RADS) 4 breast mass. Methods:From January 2014 to June 2016 in the Affiliated Hospital of Chengde Medical College, 120 patients with breast tumor resection and preoperative BI-RADS4 of all the masses were included in this study. The diagnostic value of contrast ultrasound elastography strain ratio correction and biopsy in ultrasound-guided percutaneous biopsy was evaluated with pathology as the gold standard. Results:In the 120 cases of grade BI-RADS4 mass by ultrasound elastography after correction, 46 cases were graded BI-RADS4 without changing;59 cases were downgraded to BI-RADS3, and 15 cases were upgraded to BI-RADS5. The pathology, ultrasonic elastography strain ratio correction, biopsy diagnostic sensitivity, specificity, and accuracy were 90.7%, 81.8%, 85.5%, 88.8%, 98.5%, and 95.0%, respectively. A significant difference was found between ultrasonic elastography strain ratio correction and ultrasound-guided biopsy for the diagnosis of breast malignant mass (P0.05). Conclusion:Ultrasound-guided puncture biopsy is highly valuable in qualitative diagnosis of BI-RADS4 breast mass. After the pathological diagnosis, ultrasound elastography strain ratio has certain clinical value in BI-RADS4 guided biopsy and correction of mass classification.
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Objective To use CT and 3D reconstruction technique to locating mark of sustentaculum tali ,and measure the an‐gle & length of the specified point of the lateral wall of the calcaneus to sustentaculum tali for providing .To basis for the operation of calcaneus .Methods Thirty adult ankle wet specimens were chosen and scanned with CT ,and the dicom data were converted into the software to 3D‐reconstruction ,the observation and measurement to find new methods of locating mark of sustentaculum tali ;Forty adult calcaneus dried specimens were chosen and scanned with CT .The dicom data were converted into the software to 3D‐re‐construction ,using a workstation software measure the angle and length of the line which from the center of the sustentaculum tail to each point on the calcaneal lateral wall .Results First ,in the function of ankle joint position ,with the foot medial surface as “sag‐ittal reference plane” measurement ,the vertical line passing through the leading edge of medial malleols and the coronal line passing through the leading edge of sustentaculum tali intersect at a point .The vertical distance of the point to leading edge of medial malle‐ols was (34 .95 ± 2 .60) mm ,the length of sustentaculum tali was (21 .44 ± 1 .89) mm ,the height of sustentaculum tali was (10 .17 ± 1 .16) mm ,the anteversion of sustentaculum tali was (35 .31 ± 3 .73)° .Second ,in front of calcaneus ,upward angel of points G ,E were (28 .78 ± 3 .90 )° ,(29 .47 ± 2 .96 )° respectively .Frontward angle of points G ,E were ( - 19 .83 ± 4 .60 )° , ( - 11 .02 ± 4 .74)° respectively .Under the posterior articular surface ,upward angel of points C ,K ,I ,J were(2 .52 ± 2 .46)° ,(2 .92 ± 2 .28)° ,(14 .98 ± 2 .49)° ,(14 .38 ± 1 .90)° respectively .Frontward angle of points C ,K ,I ,J were(7 .32 ± 1 .66)° ,(19 .25 ± 1 .98)° , (10 .30 ± 2 .63)° ,(19 .33 ± 1 .97)° respectively .The length of screw was about 40 - 44 mm .The length of C point to the sustentacu‐lum tail was minimum ,and the length of G was maximum .Conclusion In the function of ankle joint position ,the sustentaculum tail can be located with the leading edge of medial malleols as a surface landmarks .The measurement of the angle and length of which from each point on the calcaneal lateral wall to sustentaculum tail by using CT .