Frontiers in Biomedical Technologies最新文献_第2页

Parotidectomy Surgical Simulation and Education with a Three-Dimensional Printed Face Model for Iraqi Surgeons 利用三维打印面部模型为伊拉克外科医生提供腮腺切除术手术模拟和教育

Frontiers in Biomedical Technologies Pub Date : 2024-04-15 DOI: 10.18502/fbt.v11i2.15331

Hassanain Ali Lafta, Ali Adel Madlol

{"title":"Parotidectomy Surgical Simulation and Education with a Three-Dimensional Printed Face Model for Iraqi Surgeons","authors":"Hassanain Ali Lafta, Ali Adel Madlol","doi":"10.18502/fbt.v11i2.15331","DOIUrl":"https://doi.org/10.18502/fbt.v11i2.15331","url":null,"abstract":"Purpose: Parotidectomy is usually suggested for many persons with parotid gland tumors. Facial nerve weakening is the most concerning of the potential consequences related to parotidectomy, resulting in a significantly reduced patient quality of life. With preoperative preparation and surgical training and simulation, a three-Dimensional (3D) printed human face anatomical model has just been designed and fabricated. \u0000Materials and Methods: Fifteen surgeons from Iraqi teaching hospitals evaluated the simulator model by using a Likert scale survey. The model is composed of a silicon based human face replica with an incorporated parotid gland replica and a closed electrical circuit of the facial nerve course to show when contact is made between the surgical instrument and the nerve to provide feedback. \u0000Results and Conclusion: All participants gave favorable feedback. Significant levels of satisfaction with the designed simulator have been relatively achieved. In comparison to experts, novice surgeons scored less for skin realism and handling. Such a difference suggests that the proposed simulator appears to have the potential to contribute to the advancement of surgical simulation, education, and planning.","PeriodicalId":34203,"journal":{"name":"Frontiers in Biomedical Technologies","volume":"37 8","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140700520","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A Deep Learning Approach for Detecting Atrial Fibrillation using RR Intervals of ECG 利用心电图 RR 间期检测心房颤动的深度学习方法

Frontiers in Biomedical Technologies Pub Date : 2024-04-15 DOI: 10.18502/fbt.v11i2.15343

Shrikanth Rao S.K, Maheshkumar H Kolekar, R. J. Martis

引用次数: 0

Feature Extraction from Regenerated EEG – A Better Approach for ICA Based Eye Blink Artifact Detection 从再生脑电图中提取特征--基于 ICA 的眨眼伪影检测的更好方法

Frontiers in Biomedical Technologies Pub Date : 2024-04-15 DOI: 10.18502/fbt.v11i2.15336

M. Rashida, Mohammad Ashfak Habib

{"title":"Feature Extraction from Regenerated EEG – A Better Approach for ICA Based Eye Blink Artifact Detection","authors":"M. Rashida, Mohammad Ashfak Habib","doi":"10.18502/fbt.v11i2.15336","DOIUrl":"https://doi.org/10.18502/fbt.v11i2.15336","url":null,"abstract":"Purpose: Independent Component Analysis (ICA) decomposition is a commonly used technique for eye blink artifact detection from Electroencephalogram (EEG) signals. Feature extraction from the decomposed ICs is a prime step for blink detection. This paper presents a new model of eye blink detection for ICA based approach, where the decomposed ICs are projected to their corresponding EEG segments (ReEEG), and feature extraction is performed on the ReEEG instead of the IC. ReEEG represents the eye blink activity more distinctly. Hence, ReEEG-based feature extraction is more potential in detecting eye blink artifacts than the traditional IC-based feature extraction. \u0000Materials and Methods: This paper employs twelve EEG features to substantiate the superiority of ReEEG over IC. Support Vector Machine (SVM) is used as a classifier. A dataset, having 2638 clinical EEG epochs, is employed. All the considered twelve features are extracted from ReEEG and fed to SVM one at a time for blink detection. Then the obtained results are compared with an IC-based model with the same features. \u0000Results: The comparison reveals the success of the proposed ReEEG-based blink detection approach over the traditional IC-based approach. Accuracy, precision, recall, and f1 scores are calculated as performance measuring metrics. For almost all features, ReEEG-based approach achieved up to 12.25% higher accuracy, 24.95% higher precision, 13.49% higher recall, and 12.89% higher f1 score than the IC-based traditional method. \u0000Conclusion: The proposed model will be useful for researchers in dealing with the eye blink artifacts of EEG signals with more efficacy.","PeriodicalId":34203,"journal":{"name":"Frontiers in Biomedical Technologies","volume":"44 22","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140701778","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The Benson Complex Figure Test: Normative Data for the Healthy Iranian Population 本森复杂图形测验：伊朗健康人群的标准数据

Frontiers in Biomedical Technologies Pub Date : 2024-04-15 DOI: 10.18502/fbt.v11i2.15339

Minoo Sisakhti, Helia Hosseini, S. A. Batouli, H. Farrahi

{"title":"The Benson Complex Figure Test: Normative Data for the Healthy Iranian Population","authors":"Minoo Sisakhti, Helia Hosseini, S. A. Batouli, H. Farrahi","doi":"10.18502/fbt.v11i2.15339","DOIUrl":"https://doi.org/10.18502/fbt.v11i2.15339","url":null,"abstract":"Purpose: Visual-related abilities such as visual memory and visuo-constructional skills are among the cognitive abilities with fundamental importance for normal cognitive function, and their impairment is manifested in many neurological and psychiatric disorders. The present study aimed to generate normative data for the Benson Complex Figure Test (BCFT), a well-known simplified version of the Rey-Osterrieth Complex Figure Test, in Iran and to assess the effect of demographic variables of age, gender, and education on its various measures. \u0000Materials and Methods: The present study was conducted in 2017-2018 as part of the Iranian Brain Imaging Database (IBID) project. The study sample consisted of 300 normal individuals in the age range of 20 to 70 years, with an equal number of participants and an equal proportion of genders in each age decade (#60). Independent and dependent variables, respectively, were age (classified by five decades including 20-30-year-olds, 31-40-year-olds, 41-50-year-olds, 51-60-year-olds, and 61-70-year-olds) and performance in the BCFT (defined in terms of 3 scores on a copy, recall, and recognition of the geometric figure and 2 scores on time of copy and recall). \u0000Results: The correlation matrix among the variables showed that age and education have a significant correlation with most of the BCFT scores, while gender only has a significant correlation with recognition score. Multivariate analysis of variance showed the effect of age, gender, and their interaction on scores, while education did not make a significant difference in the BCFT scores. Also, the t-test showed a significant difference between men and women in recall and recognition, so women and men showed better performance in recall and recognition, respectively. \u0000Conclusion: In summary, our results suggest that demographic variables of age, gender, and education affect visual memory and visuospatial abilities, and it is essential to generate normative data for research or clinical settings.","PeriodicalId":34203,"journal":{"name":"Frontiers in Biomedical Technologies","volume":"91 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140702079","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

AI in Nuclear Medical Applications: Challenges and Opportunities 核医学应用中的人工智能：挑战与机遇

Frontiers in Biomedical Technologies Pub Date : 2024-04-15 DOI: 10.18502/fbt.v11i2.15330

Mahdieh Izadpanahkakhk, Ahmad Jalili, Mustafa Ghaderzadeh, Mehdi Gheisari

引用次数: 0

Evaluation of Eye-Blinking Dynamics in Human Emotion Recognition Using Weighted Visibility Graph 利用加权可见度图评估人类情绪识别中的眨眼动态

Frontiers in Biomedical Technologies Pub Date : 2024-04-15 DOI: 10.18502/fbt.v11i2.15344

Atefeh Goshvarpour, A. Goshvarpour

{"title":"Evaluation of Eye-Blinking Dynamics in Human Emotion Recognition Using Weighted Visibility Graph","authors":"Atefeh Goshvarpour, A. Goshvarpour","doi":"10.18502/fbt.v11i2.15344","DOIUrl":"https://doi.org/10.18502/fbt.v11i2.15344","url":null,"abstract":"Purpose: Designing an automated emotion recognition system using biosignals has become a hot and challenging issue in many fields, including human-computer interferences, robotics, and affective computing. Several algorithms have been proposed to characterize the internal and external behaviors of the subjects in confronting emotional events/stimuli. Eye movements, as an external behavior, are habitually analyzed in a multi-modality system using classic statistical measures, and the evaluation of its dynamics has been neglected so far. \u0000Materials and Methods: This experiment intended to provide an innovative single-modality scheme for emotion classification using eye-blinking data. The dynamics of eye-blinking data have been characterized by weighted visibility graph-based indices. The extracted measures were then fed to the different classifiers, including support vector machine, decision tree, k-Nearest neighbor, Adaptive Boosting, and random subset to complete the process of classifying sad, happy, neutral, and fearful affective states. The scheme has been evaluated utilizing the available signals in the SEED-IV database. \u0000Results: The proposed framework provided significant performance in terms of recognition rates. The highest average recognition rates of > 90% were achieved using the decision tree. \u0000Conclusion: In brief, our results showed that eye-blinking data has the potential for emotion recognition. The present system can be extended for designing future affect recognition systems.","PeriodicalId":34203,"journal":{"name":"Frontiers in Biomedical Technologies","volume":"52 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140699082","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Comparison of Ultrasonographic Images of Glioblastoma Tumor with Magnetic Resonance Images: Rat Animal Model 胶质母细胞瘤超声图像与磁共振图像的比较：大鼠动物模型

Frontiers in Biomedical Technologies Pub Date : 2024-04-15 DOI: 10.18502/fbt.v11i2.15332

Akram Shahidani, M. Mokhtari-Dizaji, Zeinab Shankayi, Mahmoud Najafi

{"title":"Comparison of Ultrasonographic Images of Glioblastoma Tumor with Magnetic Resonance Images: Rat Animal Model","authors":"Akram Shahidani, M. Mokhtari-Dizaji, Zeinab Shankayi, Mahmoud Najafi","doi":"10.18502/fbt.v11i2.15332","DOIUrl":"https://doi.org/10.18502/fbt.v11i2.15332","url":null,"abstract":"Purpose: Magnetic Resonance Imaging (MRI) can guide the surgical strategy to identify brain tumors and monitor treatment response. It is possible to use transcranial Ultrasound (US) for periodical follow-ups. Ultrasound waves pass through the delicate areas of the skull called acoustic windows. In this study, the efficiency of ultrasound imaging was performed to diagnose glioblastoma brain tumors and the results were compared with MR images. \u0000Materials and Methods: Male Wistar rats were anesthetized by intraperitoneal injection of Ketamine and Xylazine. A stereotaxic device was used to determine the injection coordinates. C6 GBM cell lines were injected into the brains of rats. After two weeks, the formation of a glioblastoma tumor was confirmed histopathologically. The brain of animals was imaged by B-mode ultrasound and MRI. The section with the largest tumor dimensions was selected and the dimensions of the skull and tumor were measured based on the pixel size of each of the imaging methods. Pearson coefficient of correlation and Limits Of Agreement (LOA) were calculated for comparisons of the skull and tumor dimensions. \u0000Results: The skull and the tumor dimensions showed a significant correlation between the B-mode ultrasound and the MRI measurements (R = 0.99 and p < 0.05). According to the Bland-Altman analysis, the mean difference was 0.31 mm (SD = 0.20) for skull and tumor dimensions. The exact shape of the tumor is not completely clear in the ultrasound images, but it can be useful to detect the presence of the tumor and its approximate dimensions. \u0000Conclusion: In conclusion, a glioblastoma tumor was produced in the male Wistar rat. The tumor dimensions were properly assessed by B-mode ultrasound image processing and compared with MR imaging.","PeriodicalId":34203,"journal":{"name":"Frontiers in Biomedical Technologies","volume":"289 7","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140703936","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Monte Carlo Simulation and N-XCOM Software Calculation of the Neutron Shielding Parameters for the NCRP Report 144 Recommended Conventional Concretes 蒙特卡罗模拟和 N-XCOM 软件计算 NCRP 第 144 号报告推荐的常规混凝土的中子屏蔽参数

Frontiers in Biomedical Technologies Pub Date : 2023-12-26 DOI: 10.18502/fbt.v11i1.14508

Nahid Makkiabadi, Hosein Ghiasi

{"title":"Monte Carlo Simulation and N-XCOM Software Calculation of the Neutron Shielding Parameters for the NCRP Report 144 Recommended Conventional Concretes","authors":"Nahid Makkiabadi, Hosein Ghiasi","doi":"10.18502/fbt.v11i1.14508","DOIUrl":"https://doi.org/10.18502/fbt.v11i1.14508","url":null,"abstract":"Purpose: Radiation shielding requires deep knowledge about the shielding materials properties. Additionally, the interaction between the radiation and materials should be well understood. Materials and Methods: Monte Carlo (MC) simulation, NXCOM, and WinXCOM computational programs were utilized for the concrete shielding properties against 1.5 MeV neutron beam and 137Cs emitted γ-ray. In a simulated “good geometry” using MCNP5 MC code, NXCOM and WinXCOM, radiation attenuation factor (µ), microscopic neutron removal cross-section ( Half and Tenth Value Layers (HVL and TVL) of the studied concretes were derived. Obtained results by the methods were compared and discussed. Results: For 137Cs emitted γ-ray, mass attenuation factor (µ/ρ) obtained as 0.026 cm2/g, 0.025 cm2/g, and 0.025 cm2/g for the Serpentine concrete as the minimum factors by MCNP5 code, WinXCOM and NXCOM software, respectively. Good agreement was seen in the results derived by the use of the applied calculation methods. Maximum values for the µ/ρ were calculated as 0.03 cm2/g, 0.029 cm2/g and 0.029 cm2/g by MCNP5 code, WinXCOM and NXCOM, respectively. For the neutron attenuation factor, calculations were conducted for the concretes and the highest and lowest ΣR/ρ were derived for Serpentine and Ordinary concretes. MCNP5 MC code was calculated ΣR/ρ for the Serpentine and Ordinary concretes as 0.039 cm2/g and 0.030 cm2/g, respectively. ΣR/ρ for the Serpentine and Ordinary concretes as 0.039 cm2/g and 0.030 cm2/g, respectively. Conclusion: It was concluded that the calculated results showed N-XCOM program can be applied for the shielding calculations for the conventional concretes studied in this work.","PeriodicalId":34203,"journal":{"name":"Frontiers in Biomedical Technologies","volume":"17 7","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139155419","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Reduction of Radiation Risk to Cardiologists and Patients during Coronary Angiography: Effect of Exposure Angulation and Composite Shields 降低冠状动脉造影术中心脏病专家和患者的辐射风险：照射角度和复合屏蔽的影响

Frontiers in Biomedical Technologies Pub Date : 2023-12-26 DOI: 10.18502/fbt.v11i1.14515

Reza Malekzadeh, A. Tarighatnia, P. Mehnati, Nader D. Nader

{"title":"Reduction of Radiation Risk to Cardiologists and Patients during Coronary Angiography: Effect of Exposure Angulation and Composite Shields","authors":"Reza Malekzadeh, A. Tarighatnia, P. Mehnati, Nader D. Nader","doi":"10.18502/fbt.v11i1.14515","DOIUrl":"https://doi.org/10.18502/fbt.v11i1.14515","url":null,"abstract":"Purpose: This study aimed to design an improved form of a composite shield with different materials and shapes and simultaneously reduce the radiation dose to both the patient and operator. Materials and Methods: A female phantom study was performed with and without bismuth belt-shaped composite shields on the breast region at different beam projections used in coronary angiography. Dose measurements were conducted using GR-200 thermo-luminescence dosimeters, dose area product (DAP), and air kerma (AK) over regular and large breast locations, with and without using bismuth shields. An electronic personal dosimeter was used for operator dose assessment. Patients received doses between 2.27 mSv and 3.38 mSv, depending on the size and strength of beam projections. Results: The use of the developed shields caused a dose reduction of 18%–25% of sensitive breast tissue due to breast size and shield type. During coronary angiography, the mean values of DAP and AK were 2.02 (1.24-2.80) mGy.m2 and 314.1 (202.8-500) mGy, respectively. The highest recorded dose was at the LAO/CRA and LAO/CAU beam projections for both the patient and operator. After applying a belt shield, the operator's radiation dose was decreased by approximately 32%. We found a statistically significant correlation between the radiation dose received by the operator and the patient's breast radiation exposure dose (p<0.001, r2=0.93). Conclusion: The designed belt shield can be a potentially promising protective device for decreasing the radiation risk to the patient's breast and the operator during coronary angiography. However, further studies will be considered before the application of this shield in standard clinical practice.","PeriodicalId":34203,"journal":{"name":"Frontiers in Biomedical Technologies","volume":"1 8","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139156550","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

High-Resolution Ultrasound Imaging for Non-Invasive Characterization of Acute Wound Healing in Radiation Injury on Guinea Pig Skin Tissue 利用高分辨率超声波成像对豚鼠皮肤组织辐射损伤中的急性伤口愈合进行非侵入性表征

Frontiers in Biomedical Technologies Pub Date : 2023-12-26 DOI: 10.18502/fbt.v11i1.14517

Z. Hormozi-Moghaddam, M. Mokhtari-Dizaji, Mohammad Ali Nilforoshzade, Mohsen Bakhshande, Sona Zare

{"title":"High-Resolution Ultrasound Imaging for Non-Invasive Characterization of Acute Wound Healing in Radiation Injury on Guinea Pig Skin Tissue","authors":"Z. Hormozi-Moghaddam, M. Mokhtari-Dizaji, Mohammad Ali Nilforoshzade, Mohsen Bakhshande, Sona Zare","doi":"10.18502/fbt.v11i1.14517","DOIUrl":"https://doi.org/10.18502/fbt.v11i1.14517","url":null,"abstract":"Purpose: High-resolution ultrasound imaging is a non-invasive and objective appraisal. Ultrasound imaging accomplishes the target assessment and follow-up of radiation-induced skin injury. The study aimed to investigate the complete anatomical and structural alternations of acute wound healing in skin tissue radiation injury after cell therapy with high-frequency ultrasound imaging techniques. Materials and Methods: Female guinea pigs (250 g) were divided into 3 groups: (a) controls, consisting of non-treated guinea pigs; (b) radiation-treated; (c) radiation-treated receiving adipose-derived mesenchymal stem cells. Acute radiation-induced skin injury was induced by a single fraction of X-ray irradiation of 60Gy to a 3.0×3.0-cm area with a 1.3-cm bolus on 100-cm SSD in the abdominal skin tissue. Ultrasonic imaging of the depth and quality of healing in the skin tissue was performed by processing ultrasound images at 40-MHz and 75-MHz frequencies. Results: Skin thickness indicated a significant difference between the treatment and control groups on Day 10 after 60 Gy irradiation (P<0.05). The highest skin thickness was observed in the irradiated group, and the lowest skin thickness was found in the stem cell treatment group. Conclusion: Evaluation of skin thickness, wound depth, and scar formation is important for the proper assessment and management of wound healing in stem cell therapy of radiation-induced skin damage. High-resolution ultrasound at 40- and 75-MHz frequencies is a major non-invasive method providing unprecedented insight into determining the characterization of the skin, particularly in the context of wound healing.","PeriodicalId":34203,"journal":{"name":"Frontiers in Biomedical Technologies","volume":"12 17","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139156468","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0