Browsing by Author "Zhang, Jing"
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- ItemAccuracy of an automated breast volume ultrasound system for assessment of the pre-operative extent of pure ductal carcinoma in situ: comparison with a conventional handheld ultrasound examination.(2013-11-19) Li, Na; Jiang, Yu-Xin; Zhu, Qing-Li; Zhang, Jing; Dai, Qing; Liu, He; Yang, Qian; Wang, Hong-Yan; Lai, Xing-Jian; Sun, QiangThe goal of the study described here was to compare the accuracy of an automated breast volume scanner ABVS with that of hand held ultrasound HHUS in assessing the pre operative extent of pure ductal carcinoma in situ DCIS This prospective study consisted of 33 patients with histopathologically proven pure DCIS who received conventional HHUS and ABVS examinations The discrepancy and correlation coefficients were calculated to assess differences in sizes determined by imaging and histopathologic examination Mean age was 51 8 y Mean lesion size as assessed with the ABVS did not differ significantly from that determined by histopathology Lesion size was adequately estimated under estimated or over estimated with the ABVS in 64 15 and 21 of patients and with HHUS in 42 15 and 42 respectively p Under 0 05 The coefficient of correlation between histopathologic and ABVS measurements was higher than that between histopathologic and HHUS measurements The ABVS appears to assess the extent of the lesion better than HHUS and can provide more accurate information pre operatively
- ItemDevelopment and Outcomes of a Text Messaging Tobacco Cessation Intervention With Urban Adolescents.(2015-11-21) Mason, Michael J; Campbell, Leah; Way, Thomas; Keyser-Marcus, Lori; Benotsch, Eric; Mennis, Jeremy; Zhang, Jing; King, Laura; May, James; Stembridge, Daniel RBACKGROUND This paper describes the development of an urban adolescent text messaging tobacco cessation intervention and preliminary findings from a randomized controlled trial The authors successfully adapted a face to face intervention into a personalized automated and interactive 5 day texting protocol METHODS Respondent driven sampling was used beginning at a community substance abuse facility Seventy two tobacco dependent adolescents were randomized into an automated computer texting program that delivered either the experimental condition of 30 motivational interviewing and social network counseling based personalized messages or the attention control condition consisting of a texting program covering general non smoking related health habits All teens were provided smartphones for the study and were assessed at baseline and at 1 3 and 6 months post intervention Analyses examined condition time interactions RESULTS At 6 months the experimental condition decreased the number of cigarettes smoked in the past 30 days increased intentions not to smoke in the future and increased peer social support compared with controls Effect sizes were moderate to large CONCLUSIONS These findings are unique as they target urban adolescents with a mobile health format and add to the growing literature on the efficacy of text delivered interventions
- ItemDifferentiation of benign and malignant breast lesions: a comparison between automatically generated breast volume scans and handheld ultrasound examinations.(2012-10-03) Wang, Hong-Yan; Jiang, Yu-Xin; Zhu, Qing-Li; Zhang, Jing; Dai, Qing; Liu, He; Lai, Xing-Jian; Sun, QiangOBJECTIVE To assess the diagnostic value of automated breast volume scanning ABVS or conventional handheld ultrasonography HHUS for the differentiation of benign and malignant breast lesions MATERIALS AND METHODS The study prospectively evaluated 239 lesions in 213 women who were scheduled for open biopsy The patients underwent ABVS and conventional HHUS The sensitivity specificity accuracy false positive rate false negative rate and positive and negative predictive values for HHUS and ABVS images were calculated using histopathological examination as the gold standard Additionally diagnostic accuracy was further evaluated according to the size of the masses RESULTS Among the 239 breast lesions studied pathology revealed 85 35 6 malignant lesions and 154 64 4 benign lesions ABVS was similar to HHUS in terms of sensitivity 95 3 vs 90 6 specificity 80 5 vs 82 5 accuracy 85 8 vs 85 3 positive predictive value 73 0 vs 74 0 and negative predictive value 93 3 vs 94 1 The area under the receiver operating characteristic ROC curve which is used to estimate the accuracy of the methods demonstrated only minor differences between HHUS and ABVS 0 928 and 0 948 respectively CONCLUSIONS The diagnostic accuracy of HHUS and ABVS in differentiating benign from malignant breast lesions is almost identical However ABVS can offer new diagnostic information ABVS may help to distinguish between real lesions and inhomogeneous areas find small lesions and demonstrate the presence of intraductal lesions This technique is feasible for clinical applications and is a promising new technique in breast imaging
- ItemThe implication of telehealthcare in COPD management of China.(2013-10-21) Lao, Xiangda; Zhang, Jing; Bai, ChunxueChronic obstructive pulmonary disease COPD is a very common disease all around the world and has become an increasing public health concern to the Chinese medical community In the past decades telehealthcare technology has become a good way to manage COPD but current evidence makes it hard to determine the effectiveness of this technology Internet of things Iot is a recent breakthrough in communication technology which links the virtual world to the real world through connection between sensors and working devices It relates people and items in any ways so that data collection and management become more flexible Our review concentrates on the effectiveness and potential application of telehealthcare in COPD management and how IoT technology may stimulate COPD healthcare delivery through telehealthcare technology
- ItemMIOTIC study: a prospective, multicenter, randomized study to evaluate the long-term efficacy of mobile phone-based Internet of Things in the management of patients with stable COPD.(2013-10-01) Zhang, Jing; Song, Yuan-Lin; Bai, Chun-XueChronic obstructive pulmonary disease COPD is a common disease that leads to huge economic and social burden Efficient and effective management of stable COPD is essential to improve quality of life and reduce medical expenditure The Internet of Things IoT a recent breakthrough in communication technology seems promising in improving health care delivery but its potential strengths in COPD management remain poorly understood We have developed a mobile phone based IoT mIoT platform and initiated a randomized multicenter controlled trial entitled the MIOTIC study to investigate the influence of mIoT among stable COPD patients In the MIOTIC study at least 600 patients with stable GOLD group C or D COPD and with a history of at least two moderate to severe exacerbations within the previous year will be randomly allocated to the control group which receives routine follow up or the intervention group which receives mIoT management Endpoints of the study include 1 frequency and severity of acute exacerbation 2 symptomatic evaluation 3 pre and post bronchodilator forced expiratory volume in 1 second FEV1 and FEV1 forced vital capacity FVC measurement 4 exercise capacity and 5 direct medical cost per year Results from this study should provide direct evidence for the suitability of mIoT in stable COPD patient management