Correlation between eHealth literacy and physical fitness of college students / 中国学校卫生

Objective@#To understand the current situation and association of eHealth literacy with physical health of college students, so as to provide a basis for physical health improvement.@*Methods@#By using stratified random clustering sampling method, a total of 1 446 students from first to third year of college in four colleges and universities in Dongguan were selected for the eHealth literacy questionnaire and physical fitness test.@*Results@#The average eHealth literacy score of college students was(29.72±6.19), with a pass rate of 48.8%. The scores for each dimension were application ability (18.57±4.10), judgment ability (7.48± 1.67 ), and decision making ability (3.67±0.91). The differences in eHealth literacy scores among college students with different birthplaces, family upbringing and frequency of participation in outdoor sports were statistically significant( t/F=-2.44, 3.51, 10.19 , P <0.05). The mean score of physical fitness was (73.20±7.86), with a failure rate of 5.0%, a passing rate of 77.0%, a success rate of 17.1%, and an excellent rate of 0.8%. The differences in scores of physical fitness test varied significantly by gender, grade, and frequency of participation in outdoor sports( Z=-2.27, 8.75, 39.90, P <0.05). Pearson correlation analysis showed that eHealth literacy and the three dimensions of application ability, judgment ability, and decision making ability were positively correlated with total physical fitness test scores( r=0.17, 0.18, 0.16, 0.19, P <0.01). Multiple linear regression analysis showed that after adjusted for gender, grade, and frequency of participation in outdoor sports, eHealth literacy application ability, judgment ability, and decision making ability could significantly and positively affect physical fitness test score( β=0.13, 0.12, 0.12, P < 0.05 ).@*Conclusion@#Physical fitness of college students is associated with eHealth literacy,promotion of eHealth literacy among college students help improve physical health status.

Evaluation of contrast-enhanced ultrasonography breast predictive model in optimizing breast lesions BI-RADS classification / 中华超声影像学杂志

Objective To explore the value of contrast-enhanced ultrasonography ( CEUS ) breast predictive model in the optimization of BI-RADS classification of breast lesions . Methods A total of 1049 BI-RADS 4 ,5 breast lesions were obtained from 1039 patients in 8 centers . CEUS examination was performed prior to biopsy or surgery . According to the classification of the model ,class 3 ,4A ,4B and 4C were selected as biopsy thresholds ,and the ROC curve was drawn . The diagnostic sensitivity ,specificity , accuracy ,positive predictive value ,negative predictive value and Jordanian index were calculated for the biopsy threshold . The biopsy rate of breast lesions before and after angiography ,cancer detection rate , follow-up cases of malignant risk were compared . Results There were benign lesions 586 ( 55 .9％ ) , malignant lesions 463 (44 .1％ ) in the 1049 breast lesions . The area of ROC with thresholds of 3 ,4A ,4B and 4C were 0 .695 ,0 .838 ,0 .847 and 0 .757 ,respectively ( all P < 0 .01) . Ultrasonography had a certain diagnostic effect on benign and malignant breast lesions . The diagnostic sensitivity ,specificity ,accuracy , positive predictive value and negative predictive value with class 4A after CEUS set as the biopsy threshold were 93 .32％ ,75 .65％ ,82 .75％ ,75 .57％ and 93 .35％ ,respectively ,and the Jordanian index was 0 .690 . When chass 3 after CEUS was set as the biopsy threshold ,the biopsy rate was reduced from 100％ to 76 .74％ ,the detection rate was increased from 44 .23％ to 56 .77％ ,and the risk of cancer was only 0 .67％ in the follow-up cases . When class 4A was set as the biopsy threshold ,the biopsy rate was reduced from 100％ to 55 .58％ after CEUS . The detection rate of cancer increased from 44 .23％ to 74 .44％ . The risk of cancer was 2 .96％ . Conclusions The biopsy rate of breast lesions in category 4 and 5 would be reduced and cancer detection rate of them would be increased after CEUS ,however ,the risk of malignancy in the follow -up cases would be controlled as low as category 3 and 4A in previous BI-RADS . Thus ,CEUS has a good prospect of in optimizing BI-RADS and reducing biopsy rate in unnecessary lesions .

Diagnostic value of contrast-enhanced ultrasound in breast precancerous lesions / 中华超声影像学杂志

Objective To evaluate the diagnostic value of contrast-enhanced ultrasound in breast precancerous lesions . Methods Retrospectively analyzed the contrast-enhanced ultrasound model and angiographic predictive model of 465 cases of the A prospective multicenter study of breast nodules contrast-enhanced ultrasound" that led the Sichuan Provincial People′s Hospital from January 2016 to April 2017 ,which included 69 cases of breast precancerous lesions and 396 other types benign lesions ,and the sensitivity ,specificity and accuracy of the diagnosis of breast precancerous lesions were calculated . Results The sensitivity of ultrasound predictive model for the diagnosis of precancerous lesions was 60 .9％ and AUC was 0 .681 . Precancerous lesions mainly showed non-concentricity , increased homogeneity , and increased lesions;other types of benign lesions mainly showed non-centripetal ,high uniformity enhancement and lesion size unchanged . Conclusions Contrast-enhanced ultrasound shows a potential value in the differential diagnosis of precancerous lesions and other types of benign lesions ,that can help clinicians to take early intervention measures for breast precancerous lesions ,but there are still many problems to be solved .

Ultrasonographic signs as factors for recurrence of gallstones and polypoid lesions of the gallbladder after gallbladder-preserving surgery / 临床肝胆病杂志

ObjectiveTo investigate ultrasonographic signs as the factors for the recurrence of gallstones and polypoid lesion of the gallbla-dder in patients undergoing gallbladder-preserving surgery. MethodsRelated signs including gallbladder size, sound transmission of the gallbladder, gallbladder wall thickness, cholestasis, gallbladder contraction function, and common bile duct diameter measured by preoperative and postoperative ultrasonography, as well as the recurrence of gallstones and polypoid lesions of the gallbladder after surgery, were collected from 700 patients who underwent gallbladder-preserving surgery in Huangshi Central Hospital from January 2011 to February 2015. The Fisher′s exact test and Cox proportional hazards regression model were applied for univariate and multivariate analysis of related factors for recurrence after gallbladder-preserving surgery. ResultsThe shortest and longest follow-up time was 6 months and 48 months, respectively, and the mean follow-up time was 18±12 months. Among the 700 patients, 1 experienced recurrence of gallstones at 1 month after surgery, 2 experienced recurrence of gallstones at 6 months after surgery, 1 experienced recurrence of gallstones at 12 months after surgery, and 1 experienced recurrence of polypoid lesions of the gallbladder at 24 months after surgery. The mean time to recurrence of gallstones and polypoid lesions was 9.8 months after surgery, and the recurrence rate was 0.71% (5/700). The univariate analysis showed that gallbladder wall thickness ≥4 mm, gallbladder contraction function ＜30%, and cholestasis were significantly associated with the recurrence of gallstones and polypoid lesions (all P＜0.05). The multivariate analysis showed that gallbladder wall thickness ≥4 mm, cholestasis, and gallbladder contraction function ＜30% were independent factors for recurrence after gallbladder-preserving surgery (P=0000 3, 0.040 0, and 0.040 0). ConclusionUltrasonography shows that gallbladder wall thickness ≥4 mm, gallbladder contraction function ＜30%, and cholestasis are closely associated with the recurrence of gallstones and polypoid lesions of the gallbladder.

Assessment the influence of symptom-onset-to-balloon time on local cardiac function prognosis in patients with ST-segment elevation myocardial infarction by two-dimensional speckle tracking imaging / 中华医学超声杂志（电子版）

Objective To explore the emergency PCI symptom-onset-to-balloon time (SOTBT) influence on the local cardial function in patients with acute ST-segment elevation myocardial infarction (STEMI) by two-dimensional speckle tracking imaging (2D-STI) technology.Methods Sixty cases were ifrst diagnosed with ST-elevation myocardial infarction (STEMI) and undergone emergency PCI surgery in Huangshi central hospital from June 2014 to June 2016. According to SOTBT, patients were divided into two groups: SOTBT≤6h myocardial infarction group, 6 h

Clinical study of acoustic radiation force impulse imaging in the differential diagnosis of benign and malignant liver lesions / 肿瘤研究与临床

Objective To detect the tissue stiffness of liver lesions by using acoustic radiation force impulse imaging (ARFI) and to evaluate the clinical value on the characteristics of liver lesions.Methods ARFI was perforrned in 91 patients with 103 liver lesions (56 benign,48 malignant).Tbe elastographic images of virtual touch tissue imaging (VTI) and the values of virtual touch tissue quantification (VTQ) were analyzed.The area under the curve and cutoff value for VTQ value were used to assess diagnostic performance.Results On the elastographic images of VTI,79.17 ％ (31/55) malignant liver lesions and 56.36 ％ (38/48) benign liver lesions appeared stiffer compared with the surrounding liver parenchyma.There was statistical difference between malignant and benign liver lesions (x2 =0.627,P ＜ 0.01).The VTQ values of malignant and benign liver lesions were (2.64±0.65) m/s and (1.72±0.39) m/s,respectively,and there was statistical difference between them (t =8.638,P ＜ 0.01).With a cutoff value of 2.10 m/s for VTQ value,the sensitivity and specificity of diagnosis for liver malignancy were 83.3 ％ and 81.8 ％,respectively.Conclusion ARFI can provide information of the tissue stiffuess in live lesions,which is helpful in the differentiation between benign and malignant liver lesions and might become the imaging modality in the future.