1.The application of multimodal ultrasound combined with magnetic resonance imaging based on the ultrasonic elastic strain rate ratio and two-dimensional ultrasound in the differential diagnosis of breast cancer
Youdong HAN ; Chunmei ZHANG ; Chengzheng ZHANG ; Chaomi LI ; Yue YIN
Chinese Journal of Radiological Health 2026;35(3):439-444
Objective This study evaluated the diagnostic value of adding magnetic resonance imaging (MRI) to multimodal ultrasound for breast cancer, where multimodal ultrasound consisted of two-dimensional imaging and the strain ratio (SR) from elastography. Methods We enrolled 180 patients with breast lesions who were admitted to our hospital between August 2023 and August 2025. All patients underwent multimodal ultrasound and MRI examinations. Multimodal ultrasound included two-dimensional imaging and ultrasound elastography with strain ratio measurement. Breast cancer detection rates were assessed for each imaging method. The diagnostic performance of multimodal ultrasound alone, MRI alone, and the two methods combined was compared. Results Among the 180 patients, 82 (45.56%) had benign lesions and 98 (54.44%) had malignant lesions. The numbers of cases consistent with pathological diagnosis were 152 for multimodal ultrasound, 145 for MRI, and 160 for their combination. The sensitivity of the combined diagnosis was 95.92%, which exceeded that of multimodal ultrasound alone (84.69%) and MRI alone (79.59%). The negative predictive value of the combined diagnosis was 94.29%, which was significantly higher than that of MRI alone (77.01%, P<0.05). Conclusion Combining MRI with multimodal ultrasound based on SR and two-dimensional ultrasound significantly improves the differential diagnosis of breast cancer. This strategy compensates for the limitations of using a single modality and provides a more reliable imaging basis for clinical diagnosis and treatment decisions.
2.Guidance value of QT dispersion and JT dispersion for identification of coronary heart disease with blood stasis syndrome type/
Yongjie YUAN ; Yongjun ZHANG ; Chengzheng HAN
Chinese Journal of cardiovascular Rehabilitation Medicine 2019;28(6):94-97
To explore the guidance value of QT dispersion (QTd) and JT dispersion (JTd) for identifica‐tion of coronary heart disease (CHD) with blood stasis syndrome type .Methods : A total of 246 CHD patients of our hospital were divided into blood stasis block group (n=71) ,Tanbixinyang group (TBXY group ,n=42) ,liver and renal Yin deficiency group (LRYD group ,n=44) ,Qi and Yin deficiency group (QYD group ,n=45) and cardiac and renal Yang deficiency group (CRYD group ,n=35) according to four diagnostic methods of Traditional Chinese Medicine (TCM).The QTd ,corrected QTd (QTcd) ,JTd and corrected JTd (JTcd) were observed in all groups , and their predictive value for blood stasis block were analyzed .Results : Compared with TBXY ,LRYD ,QYD and CRYD group ,there were significant rise in levels of QTd [ (72. 21 ± 16.48) ms ,(50.89 ± 12.77) ms ,(49. 17 ± 7.91) ms ,(62. 54 ± 12.80) msvs.(82.30 ± 19.05) ms] ,QTcd [(73.82 ± 18. 72) ms ,(51.41 ± 12.81) ms ,(51. 12 ± 9.73) ms ,(62.48 ± 13.35) msvs .(87. 75 ± 20. 72) ms] ,JTd [ (74. 54 ± 16.83) ms ,(52.18 ± 12. 68) ms ,(51. 50 ± 10. 78) ms ,(64.75 ± 12. 30) msvs.(89.43 ± 24.40 ) ms] and JTcd [ (75.14 ± 21. 05 ) ms ,(54. 93 ± 11.41 ) ms , (52.90 ± 10. 03) ms ,(65.26 ± 12. 72) msvs.(91. 98 ± 24. 22) ms] in blood stasis block group , P=0. 001 all.Area under curve (AUC) of QTd ,QTcd ,JTd ,JTcd predicting CHD with blood stasis block was 0. 832 ,0. 861 ,0.856 and 0.854 respectively ,and optimal cutoff point was 70.77ms ,69.83ms ,77. 80ms and 77.51ms respectively .Conclu‐sion : QTd and JTd levels on ECG in CHD patients with blood stasis block type are significantly higher than other syndrome types , so they possess certain guidance value for CHD syndrome typing .

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