ABSTRACT
Objective To evaluate the application value of three-dimensional speckle tracking imaging (3D-STI) in quantitatively evaluating the left ventricular global strain in recipients within 3 months after renal transplantation. Methods Clinical data including blood pressure, serum creatinine and tacrolimus blood concentration of 34 renal transplant recipients were collected before operation, 7 d, 1 month and 3 months after operation, respectively. Meanwhile, conventional echocardiography and 3D-STI examination were performed. Echocardiographic parameters [left ventricular end-diastolic volume (LVEDV), left ventricular end-systolic volume (LVESV) and left ventricular ejection fraction (LVEF)] and 3D-STI parameters [left ventricular global peak longitudinal strain (GPLS), global peak circumferential strain (GPCS), global peak radial strain (GPRS) and global peak area strain (GPAS)] of recipients were collected. The changes of these parameters before operation, 7 d, 1 month and 3 months after operation were statistically compared. The changing characteristic and application value of 3D-STI in quantitatively evaluating the left ventricular global strain in recipients within 3 months after renal transplantation were evaluated. Results LVEF and GPCS did not significantly differ at different time points (all P > 0.05), whereas LVEDV, LVESV, GPLS, GPAS and GPRS significantly differed at different time points from preoperative to within postoperative 3 months (all P < 0.001). GPLS, GPAS and GPRS trended to decline within postoperative 1 month, and slightly increased at 3 months after operation, which was still lower than the preoperative levels. Conclusions Application of 3D-STI may sensitively detect the changes of left ventricular global strain in recipients after renal transplantation when no significant variations are observed in postoperative LVEF. Compared with conventional echocardiography, 3D-STI may more accurately evaluate the changes of left ventricular global strain in recipients after renal transplantation.
ABSTRACT
There are many types of serum tumor markers,and their structures and functions vary.The standardization and harmonization of serum tumor markers will contribute to clinical diagnosis and treatment.Therefore,many scholars are committed to the research of their standardization.However,there are only a few items have been standardized.Due to the complexity of determination,most tumor markers are still facing problems and challenges in the process of achieving standardization.
ABSTRACT
Objective To gain accurate imaging i nformation of biliary tract after surgery. Methods The biliary tract of 170 cases after s urgery had been observed dynamically from different directions for longer time. The results of data on biliary tract change were stored in disc, or picture. Results Of 170 cases, 120 cases were cured with out any abnormal change on cholangiography, and then the T-tube was removed. Of another 50 cases, 30 cases revealed remnant stone on cholangiography, 9 cases s howed inflammatory stricture of biliary tract, 4 cases displayed common bile duc t tumor, and 7 cases had false filling-defect. Then, the results were further c onfirmed by sonography, CT, choledochoscopy, and operation. Conclusion The dynamic observation of biliary tract by T-tube cholangiography after surgery is usual way that is handy, pract ical, painless, and economic.