The diagnostic value of combination of 3.0T MR and mammograms for breast benign and malignant lesion / 实用放射学杂志

Objective To investigate the diagnostic value of mammography,3.0T MR and the combination for benign and malignant breast lesions.Methods Sixty-one patients with breast lesion proved by postoperative pathology included 47 malignant cases and 14 benign cases.Imaging indexes were recorded and analyzed for all cases,including TIC type,ADC value and whether the Choline peak was detected on MRS.SPSS 17.0 statistical software package was used for analysis.Chisquare test was used for count data and P<0.05 was considered as statistically significant.Results The accuracy were 45.9% and 62.3% respectively for mammography or MR as a sole method for the diagnosis of benign and malignant breast disease.When combining the two techniques,the diagnostic accordance rate was 80.3%.The rate based on the combination of mammography and MR were higher than on basis of either kind of examination along, with a statistically significant difference (χ2=4.08,P<0.05).Conclusion MR examination was superior to mammography for the diagnosis value of benign and malignant breast lesions.When combining mammography with MR examination,it could not only obviously improve the accuracy of preoperative diagnosis of breast cancer but also provide the theoretical basis for the early diagnosis and the prognosis.

Exploration of prolonging urine collection bags replacement time for patients with indwelling catheter / 中国实用护理杂志

ObjectiveTo investigate the best time interval for replacement of urine collection bags for patients with indwelling catheter. Methods90 patients in brain surgery department with indwelling catheter were randomly divided into group A,B,C,group A replaced urine collection bags every 3 days,group B replaced urine collection bags every 7 days,group C replaced urine collection bags every 14 days.Urine samples were gathered in three groups of patients for bacterial culture on the admission day,the 5th,the 8th,the 11th and the 14th day respectively,and the positive rates of bacterial culture were compared.ResultsThe positive rates of urinary bacterial culture in three groups were not significantly different by statistical analysis. ConclusionsReplacement time of urine collection bags for patients with indwelling catheter may be extended to 14 days,and may be synchronization with the replacement time of urine catheters.This can reduce bacterial ascending infection,decrease nosocomial infection rate,save health care costs,reduce the labor intensity of the nursing staff,improve the social and economic benefits.