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Price: EUR 150.00Authors: Yang, Wen | Chen, Yue
Article Type: Research Article
Abstract: BACKGROUND: Electronic coloscopy is an invasive procedure and achieving an ideal result can be challenging, leading to low intestinal cleanliness scores and a poor intestinal polyp positive rate. OBJECTIVE: (1) To demonstrate the impact of intensified nursing intervention on electronic colonoscopy. (2) To improve patients’ satisfaction with medical services related to intestinal cleanliness during preparation, the accuracy of the intestinal polyp-positive rate, and nursing. METHODS: Our study included 120 patients who underwent electronic coloscopy. These patients were randomly assigned to either the observation group or the control group, with 60 cases in each …group. Patients in the control group received conventional nursing intervention, which included face-to-face oral and written instructions. In addition to the conventional intervention, patients in the observation group received intensified guidance interventions, which included instructions via phone, as well as WeChat messages and pictures. RESULTS: The patients in the observation group who received intensified guidance interventions demonstrated better intestinal cleanliness during preparation compared to the control group (P < 0.05). Besides, the accuracy of the intestinal polyp positive rate was higher in the observation group than in the control group (P < 0.05). Finally, regarding patient satisfaction with the nursing service provided by the endoscopy center, the observation group had a higher level of satisfaction than the control group (P < 0.05). CONCLUSION: The intensified guidance interventions provided to patients undergoing electronic colonoscopy resulted in a significant improvement in intestinal cleanliness during preparation, as well as an increase in the accuracy of the intestinal polyp-positive rate and patient satisfaction with our nursing service. Therefore, we believe that these interventions are highly beneficial and should be promoted and applied in clinical settings. Show more
Keywords: Colonoscopy, nursing intervention, intestinal cleanliness, intestinal polyp positive rate, satisfaction with nursing service
DOI: 10.3233/THC-230774
Citation: Technology and Health Care, vol. Pre-press, no. Pre-press, pp. 1-7, 2024
Authors: Yang, Xin-Lei | Ni, Dong-He | Yu, Yang | Zhao, Jin-Cui | Lin, Rui | Xiu, Chao | Chang, Zhe-Xing
Article Type: Research Article
Abstract: BACKGROUND: Breast cancer has the second highest mortality rate of all cancers and occurs mainly in women. OBJECTIVE: To investigate the relationship between magnetic resonance imaging (MRI) radiomics features and histological grade of invasive ductal carcinoma (IDC) of the breast and to evaluate its diagnostic efficacy. METHODS: The two conventional MRI quantitative indicators, i.e. the apparent diffusion coefficient (ADC) and the initial enhancement rate, were collected from 112 patients with breast cancer. The breast cancer lesions were manually segmented in dynamic contrast-enhanced MRI (DCE-MRI) and ADC images, the differences in radiomics features between …Grades I, II and III IDCs were compared and the diagnostic efficacy was evaluated. RESULTS: The ADC values (0.77 ± 0.22 vs 0.91 ± 0.22 vs 0.92 ± 0.20, F = 4.204, p < 0.01), as well as the B_sum_variance (188.51 ± 67.803 vs 265.37 ± 77.86 vs 263.74 ± 82.58, F = 6.040, p < 0.01), L_energy (0.03 ± 0.02 vs 0.13 ± 0.11 vs 0.12 ± 0.14, F = 7.118, p < 0.01) and L_sum_average (0.78 ± 0.32 vs 16.34 ± 4.23 vs 015.45 ± 3.74, F = 21.860, p < 0.001) values of patients with Grade III IDC were significantly lower than those of patients with Grades I and II IDC. The B_uniform (0.15 ± 0.12 vs 0.11 ± 0.04 vs 0.12 ± 0.03, F = 3.797, p < 0.01) and L_SRE (0.85 ± 0.07 vs 0.78 ± 0.03 vs 0.79 ± 0.32, F = 3.024, p < 0.01) values of patients with Grade III IDC were significantly higher than those of patients with Grades I and II IDC. All differences were statistically significant (p < 0.05). The ADC radiomics signature model had a higher area-under-the-curve value in identifying different grades of IDC than the ADC value model and the DCE radiomics signature model (0.869 vs 0.711 vs 0.682). The accuracy (0.812 vs 0.647 vs 0.710), specificity (0.731 vs 0.435 vs 0.342), positive predictive value (0.815 vs 0.663 vs 0.669) and negative predictive value (0.753 vs 0.570 vs 0.718) of the ADC radiomics signature model were all significantly better than the ADC value model and the DCE radiomics signature model. CONCLUSION: ADC values and breast MRI radiomics signatures are significant in identifying the histological grades of IDC, with the ADC radiomics signatures having greater value. Show more
Keywords: Invasive ductal carcinoma, magnetic resonance imaging, radiomics, histological grading
DOI: 10.3233/THC-230671
Citation: Technology and Health Care, vol. Pre-press, no. Pre-press, pp. 1-10, 2024
Authors: Al Ahmari, Nasser M. | Alshehri, Abdulkarim H. | Gadah, Thrya S. | Alqahtani, Jaber A. | Almushafi, Mohammed A. | Al Moaleem, Mohammed M. | Al Hatlan, Ebtisam N. | Alqhatani, Aliya S. | Alabydi, Shahad M.
Article Type: Research Article
Abstract: BACKGROUND: Endocrowns (ECs) are alternatives for rebuilding severely damaged teeth and show superior efficacy in molars over premolars. OBJECTIVE: The objective of this in vitro study is to evaluate the effects of different preparation designs with short pulp chambers on the mean color change (Δ E ), fracture resistance, and failure types of mandibular molar ECs. METHOD: A total of 40 extracted mandibular molars were treated endodontically and divided into four groups. Samples in groups 1, 2, 3, and 4 had occlusal preparation depths of 5 mm, 3 …mm, 3 mm with ferrule, and 3 mm with boxes, respectively. The samples were immersed in coffee and their Δ E values were measured by using the Commission Internationale de l’Eclairage color system. They were also subjected to a fracture test. Next, all specimens were examined visually under a stereomicroscope to evaluate their failure modes and identify their fracture origins. Data were entered and analyzed by using Statistical Package for Social Sciences. RESULTS: Among all groups, group 4 (3 mm + boxes) presented the highest Δ E (4.15) after immersion in coffee. Moreover, ANOVA revealed that the Δ E of group 4 (occlusal preparation depth of 3 mm with boxes) was significantly different (p < 0.05) from that of group 2 (3 mm + ferrule, 3.07). The EC with a 3 mm chamfer and ferrule showed the highest maximum load of 2847.68 ± 693.27 N, whereas that with a 5 mm chamfer finish line had a marginally reduced load at fracture of 2831.52 ± 881.83 N. The EC with a 3 mm chamber and boxes had a slightly increased maximum load of 2700.75 ± 436.40 N, whereas that with the 3 mm chamber had the lowest maximum load at fracture of 2385.97 ± 465.61 N. One-way ANOVA showed that different EC preparation designs had no effect on maximum fracture load (F [3,16] = 0.550, p = 0.6). CONCLUSION: The recorded Δ E values of ECs in all groups were equal or marginally higher than the acceptable values. The EC with a 3 mm chamfer and ferrule displayed the highest mean maximum load. The EC with a 5 mm chamfer finish line had a marginally lower maximum load at fracture than other ECs. Failures, such as ceramic fracture, split fracture, and ceramic and tooth splitting above the cemento–enamel junction (CEJ) or vertically were predominant in samples with occlusal preparation depths of 3 mm with ferrule and 5 mm. Show more
Keywords: Endocrown, color measurement, fracture strength, failure type, endocrown design
DOI: 10.3233/THC-231175
Citation: Technology and Health Care, vol. Pre-press, no. Pre-press, pp. 1-14, 2023
Authors: Wang, Gang | Zhang, Hao-Cheng | Zhang, Si-Jin | Yao, Yan-Yi | Zhao, Yan | Wang, Zeng | Zhang, Ting
Article Type: Research Article
Abstract: BACKGROUND: Coronary artery disease can be quantified by measuring the fat attenuation index (FAI). OBJECTIVE: To explore the correlations between FAI, high-risk plaque and the degree of coronary artery stenosis. METHODS: The clinical data of patients with coronary atherosclerosis who underwent a coronary computed tomography (CT) angiography examination between July 2020 and June 2023 were selected for retrospective analysis. These patients were classified into a high-risk plaque group and non-high-risk plaque group according to the presence of CT high-risk plaque. The diagnostic value of FAI and FAI combined with the degree of stenosis …was evaluated for CT high-risk plaque. RESULTS: Differences in age, body mass index, smoking history, FAI and the degree of stenosis between the two groups were statistically significant (all P < 0.05). The results of a binary logistic regression analysis revealed that FAI (odds ratio (OR): 1.131, 95% confidence interval (CI): 1.101–1.173, P < 0.001) and the degree of stenosis (OR: 1.021, 95% CI: 1.012–1.107, P < 0.001) were risk factors for high-risk plaque. CONCLUSION: The FAI can be used to monitor the inflammation level of the coronary artery; the higher the FAI is, the higher the risk of plaque and degree of stenosis. Show more
Keywords: Coronary computed tomography angiography, peripheral coronary adipose tissue, fat attenuation index, plaque
DOI: 10.3233/THC-230676
Citation: Technology and Health Care, vol. Pre-press, no. Pre-press, pp. 1-10, 2023
Authors: Lu, Cancan | Shi, Jimin | Tan, Yamin | Hu, Huixian
Article Type: Research Article
Abstract: BACKGROUND: There is no specificity in the clinical presentation of hemophagocytic lymphohistiocytosis (HLH). OBJECTIVE: To study some clinical, etiological, and prognostic features of HLH to improve the clinical understanding of the disease. METHODS: Retrospective analysis of the clinical data of 125 patients with HLH admitted to our hospital from June 2015 to August 2021, including clinical characteristics, laboratory indicators, and survival period. Statistical analysis was performed from the overall group of study indicators, which included population, children, and adults. RESULTS: In the whole population, sex, age, blood myoglobin, and NK …cell ratio of M-HLH and non-M-HLH patients (P < 0.05), serum albumin, and direct bilirubin were independent correlates of M-HLH. In the pediatric group, age and the proportion of NK cells were significantly different between M-HLH and non-M-HLH patients (P < 0.05). Multivariate Logistic regression analysis showed that all factors were not significantly associated with M-HLH. The associated regression analysis showed that all factors were not significantly associated with M-HLH. ROC curve analysis showed that the best predictive value of NK cell percentage for M-HLH diagnosis in the overall population was 4.96% in the pediatric group and 4.96% in the adult group. The best predictive value for M-HLH diagnosis was 2.08%. The univariate analysis showed that platelet count, alanine aminotransferase, aspartate aminotransferase, serum albumin, direct bilirubin and indirect bilirubin affected prognosis; COX regression showed that none of these factors had a significant relationship. The overall median survival time was 20.7 months in the adult group, 44.3 months in non-M-HLH patients, and 7.73 months in M-HLH patients (p = 0.011); univariate analysis showed that platelet count and serum albumin level affected prognosis; COX regression results in serum albumin level was an independent risk factor for prognosis. CONCLUSION: The survival rate of non-M-HLH was significantly better than that of M-HLH; the proportion of NK cells had predictive value for the diagnosis of M-HLH; in the general population, non-M-HLH was more likely to have abnormal liver function than M-HLH: lower platelet count and serum albumin level were associated with poor prognosis, and the lower the platelet count and serum albumin level, the worse the prognosis: in addition, adults with lower serum albumin levels are also associated with poor prognosis. Show more
Keywords: HLH, EB virus infection, inclusion criteria, diagnostic criteria, demographics
DOI: 10.3233/THC-231275
Citation: Technology and Health Care, vol. Pre-press, no. Pre-press, pp. 1-18, 2024
Authors: Álvarez Valdivielso, Ainhoa | Akkaya, Mustafa | Mau, Hans | Luo, T. David | Gehrke, Thorsten | Citak, Mustafa
Article Type: Research Article
Abstract: BACKGROUND: Surgeons still face difficulties when performing aseptic acetabular revision on patients with extensive defects. Advances in three-dimensional printing technology (3DP) have afforded to the surgeons to create a patient-specific implant matching the morphology and topography of the defect. OBJECTIVE: The aim of the current research was to determine the survivorship in the treatment of acetabular bone defects with pelvic discontinuity (PD). METHODS: In order to reconstruct Paprosky type III defects with PD, twenty-three patients underwent revision total hip arthroplasty (THA) utilizing 3D-printed implants (Mobelife). The primary outcomes were the implant-associated failure rate …correlated with survivorship. As secondary variables, complications and the effect of age, sex, comorbidities, history of infections and the presence of other lower limb arthroplasties on a new revision were analyzed. RESULTS: Patients were followed out to a mean of 67.22 ± 39.44 months (range, 0.9–127 months). Mobelife implant mean survival was 102.57 ± 9.90 months (95% CI 83.17–121.96). The cohort’s implant one-year survival rate was 87%; at ten years, it dropped to 78.3%. There were four revisions: three due to periprosthetic joint infection (PJI) and one case due to aseptic loosening. Cox regression analysis did not identify any variable as predictor of failure. CONCLUSION: The use of 3DP patient-specific acetabular components has shown encouraging results and it is a viable treatment option for addressing acetabular defects with combined PD in aseptic THA revision. Show more
Keywords: Acetabular bone loss, Paprosky type III bone defect, pelvic discontinuity, patient-specific implants, 3D printing
DOI: 10.3233/THC-231647
Citation: Technology and Health Care, vol. Pre-press, no. Pre-press, pp. 1-10, 2024
Authors: Alotaibi, Hanan | Al-Otibi, Fatimah | Alharbi, Raedah | ALshwuaiman, Ghada | Altwaijri, Shahad | Alfouzan, Afnan | Altaweel, Sara | Alshehri, Huda | Binrayes, Abdulaziz | Labban, Nawaf
Article Type: Research Article
Abstract: BACKGROUND: Denture stomatitis, frequently encountered, is generally addressed symptomatically, with limited exploration of preventive approaches involving antifungal medicinal plants. OBJECTIVE: This study assessed the impact of Artemisia sieberi extracts on the candida growth of conventional and digitally processed acrylic materials. METHOD: Thirty acrylic resin discs (3 mm thickness × 10 mm diameter) were prepared by conventional or CAD/CAM technology (milling and 3D printing). The resin discs were exposed to simulated brushing, thermocycling, and immersion in Artemisia sieberi extract for 8 hours. The surface roughness of the discs was assessed at …baseline and after immersion in Artemisia sieberi extract. Candida growth was quantified through colony-forming units (CFU/mL). Data was analyzed using SPSS v.22 (α ⩽ 0.05). RESULTS: Irrespective of the material type, the post-immersion surface roughness was significantly higher compared to pre-immersion values (p < 0.05). Candida growth was significantly higher in conventional acrylic materials than digitally fabricated acrylics (p < 0.05). At × 3, Ra and CFU were found to be moderately positive and non-significantly correlated (R = 0.664, p = 0.149). At × 4, Ra and CFU were found to be weak positive and non-significantly correlated (R = 0.344, p = 0.503). CONCLUSION: Artemisia sieberi extracts had a notable impact on digitally fabricated denture acrylics, reducing candida albicans growth compared to conventional heat-cured acrylic. This suggests a potential role for these extracts in improving denture hygiene and preventing denture stomatitis, particularly in the context of digitally fabricated dentures. Show more
Keywords: 3D printing, candida growth, roughness, colony forming units
DOI: 10.3233/THC-231767
Citation: Technology and Health Care, vol. Pre-press, no. Pre-press, pp. 1-13, 2024
Authors: Wang, Qiuyang | An, Peng | Song, Lina | Liu, Junjie | Liu, Jisheng
Article Type: Research Article
Abstract: BACKGROUND: Nasopharyngeal carcinoma (NC) is one of the prevalent malignancies of the head and neck region with poor prognosis. OBJECTIVE: The aim of this study is to establish a predictive model for assessing NC prognosis based on clinical and MR radiomics data, subsequently to develop a nomogram for practical application. METHODS: Retrospective analysis was conducted on clinical and imaging data collected between May 2010 and August 2018, involving 211 patients diagnosed with histologically confirmed NC who received concurrent chemoradiotherapy or radical surgery in Xiangyang No. 1 People’s Hospital. According to 5–10 years of …follow-up results, the patients were divided into two groups: the study group (n = 76), which experienced recurrence, metastasis, or death, and the control group (n = 135), characterized by normal survival. Training and testing subsets were established at a 7:3 ratio, with a predefined time cutoff. In the training set, three prediction models were established: a clinical data model, an imaging model, and a combined model using the integrated variation in clinical characteristics along with MR radiomics parameters (Delta-Radscore) observed before and after concurrent chemoradiotherapy. Model performance was compared using Delong’s test, and net clinical benefit was assessed via decision curve analysis (DCA). Then, external validation was conducted on the test set, and finally a nomogram predicting NC prognosis was created. RESULTS: Univariate analysis identified that the risk factors impacting the prognosis of NC included gender, pathological type, neutrophil to lymphocyte ratio (NLR), degree of tumor differentiation, MR enhancement pattern, and Delta-Radscore (P < 0.05). The combined model established based on the abovementioned factors exhibited significantly higher predictive performance [AUC: 0.874, 95% CI (0.810–0.923)] than that of the clinical data model [AUC: 0.650, 95% CI (0.568–0.727)] and imaging model [AUC: 0.824, 95% CI (0.753–0.882)]. DCA also demonstrated superior clinical net benefit in the combined model, a finding further verified by results from the test set. The developed nomogram, based on the combined model, exhibited promising performance in clinical applications. CONCLUSION: The Delta-Radscore derived from MR radiomics data before and after concurrent chemoradiotherapy helps enhance the performance of the NC prognostic model. The combined model and resultant nomogram provide valuable support for clinical decision-making in NC treatment, ultimately contributing to an improved survival rate. Show more
Keywords: Delta radiomics, nasopharyngeal cancer, predictive models, nomogram, decision curves, magnetic resonance imaging (MR)
DOI: 10.3233/THC-231173
Citation: Technology and Health Care, vol. Pre-press, no. Pre-press, pp. 1-14, 2024
Authors: Zuo, Wanzhao | Li, Jing | Zuo, Mingyan | Li, Miao | Zhou, Shuang | Cai, Xing
Article Type: Research Article
Abstract: BACKGROUND: It is difficult to differentiate between chronic obstructive pulmonary disease (COPD)-peripheral bronchogenic carcinoma (COPD-PBC) and inflammatory masses. OBJECTIVE: This study aims to predict COPD-PBC based on clinical data and preoperative Habitat-based enhanced CT radiomics (HECT radiomics) modeling. METHODS: A retrospective analysis was conducted on clinical imaging data of 232 cases of postoperative pathological confirmed PBC or inflammatory masses. The PBC group consisted of 82 cases, while the non-PBC group consisted of 150 cases. A training set and a testing set were established using a 7:3 ratio and a time cutoff point. In …the training set, multiple models were established using clinical data and radiomics texture changes within different enhanced areas of the CT mass (HECT radiomics). The AUC values of each model were compared using Delong’s test, and the clinical net benefit of the models was tested using decision curve analysis (DCA). The models were then externally validated in the testing set, and a nomogram of predicting COPD-PBC was created. RESULTS: Univariate analysis confirmed that female gender, tumor morphology, CEA, Cyfra21-1, CT enhancement pattern, and Habitat-Radscore B/C were predictive factors for COPD-PBC (P < 0.05). The combination model based on these factors had significantly higher predictive performance [AUC: 0.894, 95% CI (0.836–0.936)] than the clinical data model [AUC: 0.758, 95% CI (0.685–0.822)] and radiomics model [AUC: 0.828, 95% CI (0.761–0.882)]. DCA also confirmed the higher clinical net benefit of the combination model, which was validated in the testing set. The nomogram developed based on the combination model helped predict COPD-PBC. CONCLUSION: The combination model based on clinical data and Habitat-based enhanced CT radiomics can help differentiate COPD-PBC, providing a new non-invasive and efficient method for its diagnosis, treatment, and clinical decision-making. Show more
Keywords: Nomograms, retrospective studies, antigen CYFRA21.1, area under curve, radiomics, tomography, X-ray computed, clinical decision-making, pulmonary disease, chronic obstructive
DOI: 10.3233/THC-231980
Citation: Technology and Health Care, vol. Pre-press, no. Pre-press, pp. 1-13, 2024
Authors: Hu, Qinghua | Li, Min | Jiang, Linwen | Liu, Mei
Article Type: Research Article
Abstract: BACKGROUND: Photoplethysmography (PPG) signals are sensitive to motion-induced interference, leading to the emergence of motion artifacts (MA) and baseline drift, which significantly affect the accuracy of PPG measurements. OBJECTIVE: The objective of our study is to effectively eliminate baseline drift and high-frequency noise from PPG signals, ensuring that the signal’s critical frequency components remain within the range of 1 ∼ 10 Hz. METHODS: This paper introduces a novel hybrid denoising method for PPG signals, integrating Variational Mode Decomposition (VMD) with an improved wavelet threshold function. The method initially employs VMD to …decompose PPG signals into a set of narrowband intrinsic mode function (IMF) components, effectively removing low-frequency baseline drift. Subsequently, an improved wavelet thresholding algorithm is applied to eliminate high-frequency noise, resulting in denoised PPG signals. The effectiveness of the denoising method was rigorously assessed through a comprehensive validation process. It was tested on real-world PPG measurements, PPG signals generated by the Fluke ProSim™ 8 Vital Signs Simulator with synthesized noise, and extended to the MIMIC-III waveform database. RESULTS: The application of the improved threshold function let to a substantial 11.47% increase in signal-to-noise ratio (SNR) and an impressive 26.75% reduction in root mean square error (RMSE) compared to the soft threshold function. Furthermore, the hybrid denoising method improved SNR by 15.54% and reduced RMSE by 37.43% compared to the improved threshold function. CONCLUSION: This study proposes an effective PPG denoising algorithm based on VMD and an improved wavelet threshold function, capable of simultaneously eliminating low-frequency baseline drift and high-frequency noise in PPG signals while faithfully preserving their morphological characteristics. This advancement establishes the foundation for time-domain feature extraction and model development in the domain of PPG signal analysis. Show more
Keywords: Variational mode decomposition, denoising, improved wavelet thresholding, photoplethysmography
DOI: 10.3233/THC-231996
Citation: Technology and Health Care, vol. Pre-press, no. Pre-press, pp. 1-22, 2024
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