Objective To discussion of secondary intussusception in children based on ultrasound image,and the diagnosis and the therapeutic value.Methods 23 cases of secondary intussusception in children by the ultrasound image were reviewed and pathogeny analyzed.Results Within this 23 cases of secondary intussusception in children:8 cases in 23 cases were caused by Meckel di-verticulum,4 cases were caused by juvenile polyps,4 cases were caused by intestinal duplication,3 cases were caused by intestinal lymphoma,2 were caused by appendicitis,and 2 cases were caused by intestinal adhesion.And 23 cases of them were all detected by ultrasound at the very first time.22 cases of 23 cases was operated by hydrostatic enema of ultrasonic monitoring treating intussusception successfully,and 1 failed.13 cases were confirmed as secondary intussusception after first enema (Meckel di-verticulum 6 cases,juvenile polyps 3 cases,intestinal duplication 2 cases,intestinal lymphoma 1,and appendicitis 1 cases).9 cases were operated by hydrostatic enema of ultrasonic monitoring treating intussusception again when palindromia happened,which were confirmed as secondary intussusception (Meckel di-verticulum 2 cases,juvenile polyps 1 cases,intestinal duplication 2 cases,intestinal lymphoma 2 cases,appendicitis 1 cases,and intestinal adhesion 1 cases).Conclusion Meckel di-verticulum,juvenile polyps and intestinal duplication are the most common pathologic lead points caused the secondary intussusception in children.The diagnosis of ultrasound is sensitive to children secondary intussusception,and hydrostatic enema of ultrasonic monitoring treating intussusception can be operated under ultrasonic monitoring,which has an even better result than air enema under X-ray.The situation of bowel,which is full of 0.9％ sodium chloride solution,gives operators a good effect of visual to find pathologic lead points.And that really helps to provide valuable image in accordance with clinical surgery therapy of secondary intussusception.

Objective:To correlate diaphragmatic ultrasound parameters and pulmonary function in patients with chronic obstructive pulmonary disease (COPD) and its clinical value in the diagnosis of COPD.Methods:Eighty patients with COPD who received treatment in The First People's Hospital of Huzhou from January 2019 to June 2020 and 80 healthy subjects who concurrently received health examination were included in this study. Pulmonary function index, diaphragmatic ultrasonic parameters and activity endurance index were compared between COPD group and healthy control group. Diaphragmatic ultrasound parameters in COPD patients were correlated with pulmonary function index and activity endurance index.Results:The forced expiratory volume in 1 second/forced vital capacity (FEV 1/FVC) ratio in the COPD group was significantly lower than that in the healthy control group [(56.27 ± 8.98)% vs. (87.42 ± 6.29)%, t = 14.583, P < 0.05]. The residual volume/total lung capacity (RV/TLC) ratio in the COPD group was significantly higher than that in the healthy control group [(54.81 ± 6.95) % vs. (27.59 ± 3.92) %, t = 17.904, P < 0.05]. The walking distance in 6-minute walking test (6MWT) in the COPD group was significantly shorter than that in the healthy control group [(502.36 ± 82.41) m vs. (824.59 ± 63.37) m, t = 11.726, P < 0.05]. The diaphragm mobility using quite breathing (DM QB), the diaphragm mobility using deep breathing (DM DB), and diaphragmatic thickening fractions (TF) in the COPD group were (1.71 ± 0.45) mm, (4.03 ± 0.81) m and (117.56 ± 24.83) %, respectively, which were significantly lower than those in the healthy control groups [(2.24 ± 0.30) mm, (5.36 ± 0.62 ) mm, (159.60 ± 22.35)%, t = 4.736-7.592, all P < 0.05]. DM QB, DM DB and TF in patients with COPD were positively correlated with FEV 1/FVC and 6MWT distance ( r = 0.705-0.819, all P < 0.05), but they were negatively correlated with residual volume/total lung capacity (RV/TLC) ratio ( r = -0.774 to -0.847, all P < 0.05). Conclusions:DM QB, DM DB and TF decrease in COPD patients, and their values are correlated with pulmonary function and activity tolerance index. Ultrasound examination of diaphragmatic morphological change is of certain clinical value for the diagnosis and evaluation of COPD.

Objective:To investigate the clinical efficacy of qualitative and staging diagnosis of rectal tumors with dual contrast-enhanced ultrasonography and interventional biopsy.Methods:A total of 300 patients with rectal tumors who received treatment in The First People's Hospital of Huzhou from December 2019 to March 2022 were included in this study. All patients underwent dual contrast-enhanced ultrasonography and interventional biopsy followed by focus resection. Taking the postoperative histopathological test results as the gold standard, the efficacy of dual contrast-enhanced ultrasonography and interventional biopsy in the localization, qualitative analysis, and staging of rectal tumors was analyzed.Results:The compliance rate of dual contrast-enhanced ultrasonography and interventional biopsy in the localization of rectal tumors was 100%. The sensitivity, specificity, and accuracy of the dual contrast-enhanced ultrasonography and interventional biopsy for qualitative diagnosis of rectal tumors were 94.8%, 97.8%, and 96.7%, respectively. The Kappa value used for assessing agreement in the qualitative diagnosis of rectal tumors between dual contrast-enhanced ultrasonography and interventional biopsy and postoperative tissue pathological examination results was 0.947. The area under the curve plotted for qualitative diagnosis of rectal tumors was 0.974. The sensitivity, specificity, and sensitivity of dual contrast-enhanced ultrasonography and interventional biopsy for diagnosis of stage I-III rectal cancer were 94.1%-97.8%. The Kappa values used for assessing agreement in staging diagnosis of stage I-III rectal cancer between dual contrast-enhanced ultrasonography and interventional biopsy and postoperative tissue pathological examination results were 0.923, 0.912, and 0.927, respectively. The areas under the curve plotted for staging diagnosis of rectal cancer were 0.961, 0.955, and 0.970, respectively.Conclusion:Dual contrast-enhanced ultrasonography and interventional biopsy have a high efficacy in the localization, qualitative diagnosis, and staging diagnosis of rectal tumors.

Objective:To observe the clinical effect of pelvic floor ultrasound in the diagnosis and rehabilitation training of postpartum stress urinary incontinence(SUI).Methods:From May 2017 to May 2019, 200 SUI patients and 200 healthy pregnant women in the same period admitted to the First People's Hospital of Huzhou were selected in this study.All the subjects were tested by perineum and pelvic floor ultrasound, and the patients with SUI were instructed to carry out pelvic floor muscle rehabilitation training, the level of rehabilitation training effect was evaluated, and to statistically analyze the difference of pelvic floor ultrasound parameters between the patients with SUI and the healthy women, and the patients with different levels of efficacy.Results:The results of pelvic floor ultrasound in SUI patients were significantly higher than those in healthy women( t=6.536-14.925, all P<0.05). The rate of urinary leakage in SUI patients [88.50%(177/200)] was significantly higher than that in healthy women [10.50%(21/200)](χ 2=243.384, P<0.05). The total effective rate of rehabilitation training was 79.50%(159/200). The bladder neck moving distance, urethra rotation angle, posterior angle of bladder urethra in resting state and posterior angle of bladder urethra in Valsalva state in SUI patients with ineffective rehabilitation training were significantly higher than those in SUI patients with general effective rehabilitation training( t=4.662-12.537, all P<0.05). The formation rate of urethra infundibulum in SUI patients with ineffective rehabilitation training [70.73%(29/41)] was significantly higher than that in SUI patients with effective rehabilitation training [19.50%(31/159)](χ 2=40.744, P<0.05). Conclusion:The rehabilitation training of discoid muscles can effectively relieve the related clinical symptoms of postnatal SUI patients.The detection of pelvic ultrasound has a certain clinical value in the diagnosis of postpartum SUI and evaluation of rehabilitation training effect.

Objective To explore the value of contrast-enhanced ultrasound (CEUS) and intraluminal contrast in the differential diagnosis of postmenopausal endometrial benign and malignant lesions.Methods The ultrasound data of 90 patients with postmenopausal endometrial lesions diagnosed in our hospital between March 2016 and March 2018 were retrospectively analyzed.According to pathological findings,they were divided into benign group (55 cases) and malignant group (35 cases).The endometrial thickness of endovascular contrast,rise time (RT),time to peak (TTP),base intensity (BI),and peak intensity (PI) of CEUS in two groups were compared.Receiver operating characteristic curves (ROC) were used to compare the efficacy of different ultrasound parameters in benign and malignant endometrial by using pathology diagnosis as "gold standard".Results The endometrial thickness and PI were significantly higher in the malignant group than those in the benign group (P ＜ 0.05),while the RT and TTP were significantly lower than benign group (P ＜ 0.05),with no statistical difference in BI (P ＞ 0.05).The ROC curve showed that PI has the highest area under curve (AUC) in the differential diagnosis of benign and malignant endometrial lesions (AUC =0.983),followed by RT and TTP (AUC =0.889,0.872),and intimal thickness (AUC =0.766).AUC of PI was significantly higher than RT,TTP and intimal thickness (P ＜ 0.05),and the best cut-off point for PI ≥20.23 dB.The sensitivity of PI,RT,and TTP in differentiating benign and malignant endometrial lesions was significantly higher than that in intimal thickness (P ＜ 0.05),whereas the specificity and positive likelihood ratio (+ LR) of PI were significantly higher than those of RT,TTP,and intimal thickness (P ＜ 0.05).Conclusions Compared with intracavitary ultrasound,CEUS has better diagnostic value in differentiating benign and malignant endometrial tumors.Among them,the diagnostic sensitivity and specificity of PI≥20.23 dB are higher.