Technology and Health Care - Volume 32, issue S1

Authors: Hao, Chenru | Su, Rui | Dong, Chunnan | Zhang, Jingjing | Chi, Ziqiang | Meng, Fanzhen | Zhao, Ruibin | Wu, Yanru | Wang, Linlin | Li, Pengfei | Chen, Chengwei | Lian, Qingjie | Cheng, Li

Article Type: Research Article

Abstract: BACKGROUND: Flight accidents caused by spatial disorientation (SD) greatly affect flight safety. OBJECTIVE: Few studies have been devoted to the evaluation of SD. METHODS: 10 pilots and 10 non-pilots were recruited for the experimental induction of SD. Videos for giving optical flow stimuli were played at two different flow speeds to induce SD. Subjective judgment and center of foot pressure (CoP) data were collected from the tests. The data were combined to determine the occurrence of SD and analyze the SD types. RESULTS: The number of self-reported SD events …was slightly smaller in the pilots than in the non-pilots. The average upper bound of the confidence interval for the standard deviation of CoP was 0.32 ± 0.09 cm and 0.38 ± 0.12 cm in the pilots and non-pilots, respectively. This indicator was significantly lower in the pilots than in the non-pilots (P = 0.03). The success rate of the experimental induction of unrecognized SD was 26.7% and 45.0% in the pilots and non-pilots, respectively. CONCLUSION: The method offered a new to analyze unrecognized SD. We could determine the occurrence unrecognized SD. This is an essential means of reducing flight accidents caused by unrecognized SD. Show more

Keywords: Optical flow, plantar pressure, spatial disorientation, unrecognized

DOI: 10.3233/THC-248030

Citation: Technology and Health Care, vol. 32, no. S1, pp. 339-349, 2024

Authors: Yang, Xiaorong | Hu, Jieping | Chen, Qiang | Yang, Lin | Liu, Yifu | Luo, Longhua | Ma, Ming | Xie, Wenjie | Gong, Binbin | Sun, Ting | Tang, Jiazhen | Liu, Fang

Article Type: Research Article

Abstract: BACKGROUND: A growing body of evidence has shown that activating spinal cord glial cells (typically astrocytes and microglial cells) is closely related to hyperpathia and persistent pain. OBJECTIVE: To investigate the expression of GFAP and CR3/CD11b in cornu dorsale medullae spinalis of rats with nonbacterial prostatitis, to explore the therapeutic efficacy and action mechanism of intrathecal injection of BNP alleviating chronic neuropathic pain. METHODS: Eighteen male SPF SD rats were randomly divided into sham operation control group, nonbacterial prostatitis group (NBP) and intrathecal injection BNP group, the NBP model was established by intraprostatic injection …of CFA, and the spinal cord of L6-S1 segment was extracted seven days after intrathecal injection of BNP; The expression of GFAP and CR3/CD11b in dorsal horn of spinal cord were detected by immunofluorescence and Western blot. RESULTS: The cumulative optical density values of GFAP and CR3/CD11b immunofluorescence assay in the NBP group were higher than those in the sham operation group, with statistical significance (p ⁢ < ⁢ ¼ ⁢ 0.01); The expression of GFAP and CR3/CD11b in intrathecal injection BNP group were lower than those in NBP group, the differences were statistically significant (p ⁢ < ⁢ ¼ ⁢ 0.01). Western blot results showed that the expression of GFAP and CR3/CD11B in NBP group were higher than those in sham operation group, with statistical significance (p ⁢ < ⁢ ¼ ⁢ 0.05). The expression of GFAP and CR3/CD11B in intrathecal injection BNP group were lower than those in NBP group, the differences were statistically significant (p ⁢ < ⁢ ¼ ⁢ 0.05). CONCLUSION: Intrathecal injection of BNP can down-regulate the expressions of GFAP and CR3/CD11b in L6-S1 spinal cord of NBP rat model and to further inhibit chronic pain caused by NBP. Show more

Keywords: Nonbacterial prostatitis BNP, GFAP, CR3/CD11b

DOI: 10.3233/THC-248031

Citation: Technology and Health Care, vol. 32, no. S1, pp. 351-359, 2024

Authors: Kim, Ji-Won | Cha, Sang-Ho | Lee, Min-Kyun | Ko, Junghyuk | Kwon, Yu-Ri

Article Type: Research Article

Abstract: BACKGROUND: Studies investigating postural balance during various infant care postures have not been reported yet. OBJECTIVE: The aim of this study was to measure static postural balance when holding an infant dummy in-arms and carrying an infant dummy on back according to different infant dummy weights. METHODS: Sixteen healthy young subjects participated in a balance test. Infant dummies with weights of 4.6 kg (1-month) and 9.8 kg (12-month) were used in this study. All subjects were asked to naturally stand on a force platform in two infant care postures (holding an infant in-arms and …carrying an infant on one’s back). Center of pressure (COP) was measured from the force platform. Quantitative variables were derived from the COP. Two-way repeated measure analysis of variance (ANOVA) was performed to determine main effects of infant care postures, infant weight, and their interactions on COP variables. RESULTS: Back carrying a 12-month infant dummy had the greatest amplitude in all COP variables. Back carrying posture showed significantly greater mean distance and peak power, faster mean velocity, and wider COP area compared to holding posture (P < 0.05). There were significant weight effects of most COP variables mainly in AP direction (P < 0.01). CONCLUSIONS: Our results could contribute to the prevention of musculoskeletal diseases or prevention of fall due to various infant care activities by developing an assisting device to improve postural balance. Show more

Keywords: Infant care, center of pressure, static postural balance, infant carrying posture, infant weight

DOI: 10.3233/THC-248032

Citation: Technology and Health Care, vol. 32, no. S1, pp. 361-369, 2024

Authors: Jiang, Wei | Zhang, Youmeng | Yan, Jie | He, Zhiyan | Chen, Weixu

Article Type: Research Article

Abstract: BACKGROUND: Enterococcus faecalis biofilm was frequently found on the failed treated root canal wall, which survived by resisting disinfectant during endodontic treatment.Many researches have been conducted to explore the mechanisms of persistence of this pathogen in unfavorable conditions. However, no comprehensive proteomics studies have been conducted to investigate stress response in Enterococcus faecalis caused by alkali and NaOCl. OBJECTIVE: Enterococcus faecalis (E.f) has been recognized as a main pathogen of refractory apical periodontitis, its ability to withstand environmental pressure is the key to grow in the environment of high alkaline and anti-bacterial drug that causes chronic infection in …the root canal. This study aims to focus on the protein expression patterns of E.f biofilm under extreme pressure environment”. METHODS: Enterococcus faecalis biofilm model was established in vitro. Liquid Chromatograph-Mass Spectrometer (LC-MS/MS)-based label free quantitative proteomics approach was applied to compare differential protein expression under different environmental pressures (pH 10 and 5% sodium hypochlorite (NaOCl)). And then qPCR and Parallel Reaction Monitoring Verification (PRM) were utilized to verify the consequence of proteomics. RESULTS: The number of taxa in this study was higher than those in previous studies, demonstrating the presence of a remarkable number of proteins in the groups of high alkaline and NaOCl. Proteins involved in ATP-binding cassette (ABC) transporter were significantly enriched in experimental samples. We identified a total of 15 highly expressed ABC transporters in the high alkaline environment pressure group, with 7 proteins greater than 1.5 times. CONCLUSIONS: This study revealed considerable changes in expression of proteins in E.f biofilm during resistance to environmental pressures. The findings enriched our understanding of association between the differential expression proteins and environmental pressures. Show more

Keywords: Enterococcus faecalis, biofilm, proteomics, alkaline stress, sodium hypochlorite

DOI: 10.3233/THC-248033

Citation: Technology and Health Care, vol. 32, no. S1, pp. 371-383, 2024

Authors: Yang, Jiao | Zhao, Sha | Zhang, Rui | Huang, Cheng | Huang, Ke-Yao | Cheng, Ying | He, Cheng-Qi | Li, Ling-Xin

Article Type: Review Article

Abstract: BACKGROUND: The purpose of this meta-analysis was to evaluate the effectiveness and safety of thoracic manipulation (TM) in patients with neck pain (NP). OBJECTIVE: The purpose of this meta-analysis was to evaluate the effectiveness and safety of thoracic manipulation (TM) in patients with neck pain (NP). METHODS: Seven electronic databases were searched from their inception through October 2023 by two authors. The methodological quality assessments were performed with the Physiotherapy Evidence Database (PEDro) scale. Pain, cervical range of motion (ROM), disability, and quality of life (QOL) were estimated for TM treatment in patients with NP. …RESULTS: Eighteen randomized controlled trials (RCTs) with 914 patients were included with a PEDro score of 6.923 ± 3.120. Pooled effect sizes of pain (SMD = - 0.481, 95% CI - 0.653 to - 0.309, P = 0.000), disability (SMD = - 1.435, 95% CI - 2.480 to - 0.390, P = 0.007), QOL-physical component score (PCS) (SMD = 0.658, 95% CI 0.290 to 1.025, P = 0.000), ROM of flexion (SMD = 0.921, 95% CI 0.287 to 1.555, P = 0.000), ROM of extension (SMD = 0.572, 95% CI 0.321 to 0.822, P = 0.000), ROM of left lateral flexion (SMD = 0.593, 95% CI 0.075 to 1.112, P = 0.025) and ROM of left rotation (SMD = 0.230, 95% CI 0.010 to 0.450, P = 0.04) were favored by the TM group. CONCLUSIONS: TM provides short-term effect on relieving neck pain, increasing cervical ROM, and disability in patients with NP without serious side effects. Continuous therapy and distraction therapy are recommended as optimal choice on reducing pain and improving cervical ROM, especially in patients with chronic NP (> 3 months). The TM-induced improvements in the QOL of patients with NP should be verified by more further high-quality RCTs. Show more

Keywords: Thoracic manipulation (TM), thoracic spine manipulation, chronic neck pain, neck pain, cervical range of motion (ROM), disability

DOI: 10.3233/THC-248034

Citation: Technology and Health Care, vol. 32, no. S1, pp. 385-402, 2024

Authors: Liao, Shijia | Wang, Bin | Lin, Shiming

Article Type: Research Article

Abstract: BACKGROUND: Cardiovascular diseases are the top cause of death in China. Manual segmentation of cardiovascular images, prone to errors, demands an automated, rapid, and precise solution for clinical diagnosis. OBJECTIVE: The paper highlights deep learning in automatic cardiovascular image segmentation, efficiently identifying pixel regions of interest for auxiliary diagnosis and research in cardiovascular diseases. METHODS: In our study, we introduce innovative Region Weighted Fusion (RWF) and Shape Feature Refinement (SFR) modules, utilizing polarized self-attention for significant performance improvement in multiscale feature integration and shape fine-tuning. The RWF module includes reshaping, weight computation, and feature fusion, enhancing …high-resolution attention computation and reducing information loss. Model optimization through loss functions offers a more reliable solution for cardiovascular medical image processing. RESULTS: Our method excels in segmentation accuracy, emphasizing the vital role of the RWF module. It demonstrates outstanding performance in cardiovascular image segmentation, potentially raising clinical practice standards. CONCLUSIONS: Our method ensures reliable medical image processing, guiding cardiovascular segmentation for future advancements in practical healthcare and contributing scientifically to enhanced disease diagnosis and treatment. Show more

Keywords: Cardiovascular image segmentation, self-attention mechanism, medical image processing, diagnostic accuracy

DOI: 10.3233/THC-248035

Citation: Technology and Health Care, vol. 32, no. S1, pp. 403-413, 2024

Authors: Gong, Wontae

Article Type: Research Article

Abstract: BACKGROUND: Maintaining gait stability is an important factor for preventing falls of normal adults. Thus, it is necessary to conduct research on gait variables in normal adults. OBJECTIVE: In this study, we conducted research on the effect of rhythmic exercise using proprioceptive neuromuscular facilitation (PNF) patterns on gait variables in normal adults. METHODS: Thirty-two subjects were divided into two groups, the training and control groups, with 16 subjects in each group. We measured various gait variables step time difference (STD), step length difference (SLD), single support difference (SSD), stance phase difference (STPD) and …swing phase difference (SWPD) for the pre-test and post-test in each group. RESULTS: As a result of paired t-tests on various gait variables (STD, SLD, SSD, STPD, SWPD) of the training and control group, the training group showed significance in SLD, STPD and STD and the control group had no significance in all items. CONCLUSIONS: In this study, which verified the effect of rhythmic exercise using the PNF patterns on the gait variables of normal adults, there was statistical significance in SLD, STPD, and STD showing that dynamic exercise using the PNF pattern is helpful in improving the walking ability of normal adults. Show more

Keywords: Proprioceptive neuromuscular facilitation, rhythmic exercise, OptoGait, gait analysis

DOI: 10.3233/THC-248036

Citation: Technology and Health Care, vol. 32, no. S1, pp. 415-422, 2024

Authors: Zhao, Xitong | Wen, Zhijie

Article Type: Research Article

Abstract: BACKGROUND: Diffusion-weighted imaging (DWI) is a noninvasive method used for investigating the microstructural properties of the brain. However, a tradeoff exists between resolution and scanning time in clinical practice. Super-resolution has been employed to enhance spatial resolution in natural images, but its application on high-dimensional and non-Euclidean DWI remains challenging. OBJECTIVE: This study aimed to develop an end-to-end deep learning network for enhancing the spatial resolution of DWI through post-processing. METHODS: We proposed a space-customized deep learning approach that leveraged convolutional neural networks (CNNs) for the grid structural domain (x-space) and graph CNNs (GCNNs) for …the diffusion gradient domain (q-space). Moreover, we represented the output of CNN as a graph using correlations defined by a Gaussian kernel in q-space to bridge the gap between CNN and GCNN feature formats. RESULTS: Our model was evaluated on the Human Connectome Project, demonstrating the effective improvement of DWI quality using our proposed method. Extended experiments also highlighted its advantages in downstream tasks. CONCLUSION: The hybrid convolutional neural network exhibited distinct advantages in enhancing the spatial resolution of DWI scans for the feature learning of heterogeneous spatial data. Show more

Keywords: CNN, diffusion-weighted imaging, graph convolution, super-resolution

DOI: 10.3233/THC-248037

Citation: Technology and Health Care, vol. 32, no. S1, pp. 423-435, 2024

Authors: Zhao, Xingyu | Gai, Lulu | Wang, Liang | Xu, Lei

Article Type: Case Report

Abstract: BACKGROUND: Spleen Epstein-Barr Virus (EBV)-positive inflammatory follicular dendritic cell sarcoma (FDCS) is rare, and the imaging signs are unclear. The COVID-19 has been confirmed to be the cause of pneumonia and can cause a variety of diseases including myocarditis. However, it has not been reported to be the cause of the exacerbation or activation of EBV-positive inflammatory FDCS. OBJECTIVE: The objective is to extract the imaging features of EBV-positive inflammatory FDCS in the spleen and analyze the reasons for the special features of this case. METHODS: By analyzing the patient’s treatment process and …imaging examinations (A 77-year-old female was admitted to the hospital due to generalized discomfort and pain symptoms. When she was admitted to the hospital a year earlier with COVID-19 pneumonia, a chest CT scan showed that she had a splenic tumor. During this admission, CT scans showed two irregularly shaped and unevenly dense soft tissue density masses within the spleen, with uneven enhancement on contrast-enhanced im-aging within the solid components and along the edges. PET/CT scans revealed elevated glucose metabolism in the masses. Postoperative pathological diagnosis confirmed splenic EBV-positive inflammatory FDCS.), reading the literature, sorting out the disease cognitive process, epidemiology, and pathological data of EBV-positive inflammatory FDCS, we discussed the imaging manifestations and possible differential diagnosis of the disease. RESULTS: The patient was finally diagnosed with splenic EBV-positive inflammatory FDCS. CONCLUSIONS: Imaging features of EBV-positive inflammatory FDCS in the spleen include a high incidence of hemorrhage and necrosis, persistent moderate enhancement of the solid portion, a “capsular-like enhancement” structure at the tumor edge, and possibly active glucose metabolism with high Standardized Uptake Values (SUVs). COVID-19 infection and long-term COVID-19 sequelae may exacerbate and activate EBV-positive inflammatory FDCS in the spleen, and the mechanism remains to be further studied. Show more

Keywords: Splenic tumor, inflammatory follicular dendritic cell sarcoma, computed tomography, positron emission tomography/computed tomography

DOI: 10.3233/THC-248038

Citation: Technology and Health Care, vol. 32, no. S1, pp. 437-445, 2024

Authors: Seo, Shinbae | Kwon, Taekyu | Shin, Miyeon | Jeong, Hochoon | Yu, Mi | Jeong, Jongkyun | Yu, Changho

Article Type: Research Article

Abstract: BACKGROUND: Sarcopenia is a disease that has recently become an issue, and research on various assessment methods is being conducted based on guidelines published for the diagnosis of sarcopenia. However, most assessments are complex because the inspector must measure each device to collect data, or the elderly must directly manipulate and get assessment. OBJECTIVE: In this study, we developed an sarcopenia assessment system to assess and analyze various sarcopenia in one system. METHODS: The system consists of a scaffold sensor for balance ability assessment, a chair sensor for assessing the walking and lower extremity function, …and a hand-held dynamometer for assessing grip strength. The balance pad consists of 326 FSR (Force Sensitive Resistor) sensors, and the accuracy is 10 kg/± 10%. The chair sensor applied four weight sensors (Loadcells) to the corner of the hip of the chair, and the accuracy is up to 150 kg ± 10%, and the resolution is 1 kg ± 10%. All data is transmitted to the software through a USB cable to assess sarcopenia through data analysis. The software has built a database to manage user-specific data. The assessment items consisted of “Short Physical Performance Battery (SPPB) Test” and “Hand Grip Strength Test.” After completion, the software automatically terminates the assessment results and classifies sarcopenia according to the presented reference value. RESULTS: The average value of the total SPPB test scores, including the balance test, gait speed test, and chair stand test, of all participants was 9.06 ± 1.97. The average values of the balance test, gait speed test, and chair stand test scores of all participants were 8.48 ± 2.80 sec (score 3.28 ± 1.23), 1.05 ± 0.26 m/sec (score 3.69 ± 0.79), and 16.05 ± 4.62 sec (score 2.08 ± 1.13). The average value of the hand grip test of all participants was 28.57 ± 2.94 kgf. CONCLUSIONS: A preliminary assessment was conducted on the elderly in their 60 s or older with the developed system, and its performance confirmed that the assessment and result analysis were conducted well without any errors in software or hardware. Future studies intend to verify the reliability and accuracy of the assessment results compared to the existing direct measurement methods. In addition, we would like to conduct a study to establish data on the muscle reduction index by age group of Koreans. Show more

Keywords: Sarcopenia, assessment system, preliminary test, rehabilitation, healthcare

DOI: 10.3233/THC-248039

Citation: Technology and Health Care, vol. 32, no. S1, pp. 447-455, 2024