TY - JOUR AU - Pan, F. AU - Mori, N. AU - Mugikura, S. AU - Ohta, M. AU - Anzai, H. TI - The influence of blood velocity and vessel geometric parameters on wall shear stress JF - MEDICAL ENGINEERING & PHYSICS J2 - MED ENG PHYS VL - 124 PY - 2024 SN - 1350-4533 DO - 10.1016/j.medengphy.2024.104112 UR - https://m2.mtmt.hu/api/publication/34693982 ID - 34693982 N1 - Graduate school of Biomedical Engineering, Tohoku University, Sendai, Japan Institute of Fluid Science, Tohoku University, Sendai, Japan Department of Radiology, Akita University Graduate School of Medicine, Akita, Japan Department of Diagnostic Radiology, Graduate School of Medicine, Tohoku University, Sendai, Japan Division of Image Statistics, Tohoku Medical Megabank Organization, Tohoku University, Sendai, Japan ELyTMaX IRL3757, CNRS, Univ Lyon, INSA Lyon, Centrale Lyon, Tohoku University, Université Claude Bernard Lyon 1, Sendai, Japan Export Date: 29 February 2024 CODEN: MEPHE Correspondence Address: Anzai, H.; Institute of Fluid Science, Japan; email: hitomi.anzai.b5@tohoku.ac.jp LA - English DB - MTMT ER - TY - JOUR AU - Zhang, Yue AU - Cao, Gangsheng AU - Sun, Maoxun AU - Zhao, Baigan AU - Wu, Qing AU - Xia, Chunming TI - Mechanomyography signals pattern recognition in hand movements using swarm intelligence algorithm optimized support vector machine based on acceleration sensors JF - MEDICAL ENGINEERING & PHYSICS J2 - MED ENG PHYS VL - 124 PY - 2024 PG - 10 SN - 1350-4533 DO - 10.1016/j.medengphy.2023.104060 UR - https://m2.mtmt.hu/api/publication/34671100 ID - 34671100 LA - English DB - MTMT ER - TY - JOUR AU - Singh, Law Kumar AU - Khanna, Munish AU - Garg, Hitendra AU - Singh, Rekha TI - Efficient feature selection based novel clinical decision support system for glaucoma prediction from retinal fundus images JF - MEDICAL ENGINEERING & PHYSICS J2 - MED ENG PHYS VL - 123 PY - 2024 PG - 11 SN - 1350-4533 DO - 10.1016/j.medengphy.2023.104077 UR - https://m2.mtmt.hu/api/publication/34670630 ID - 34670630 LA - English DB - MTMT ER - TY - JOUR AU - Tiell, Shaye M. AU - Chennoju, Manaswini AU - Davis, Brian L. AU - Owusu-Danquah, Josiah TI - Effects of ultrasound settings on temperature changes in NiTi implants JF - MEDICAL ENGINEERING & PHYSICS J2 - MED ENG PHYS VL - 123 PY - 2024 PG - 4 SN - 1350-4533 DO - 10.1016/j.medengphy.2023.104081 UR - https://m2.mtmt.hu/api/publication/34667240 ID - 34667240 LA - English DB - MTMT ER - TY - JOUR AU - Narayan, Jyotindra AU - Abbas, Mohamed AU - Dwivedy, Santosha K. TI - Design and validation of a pediatric gait assistance exoskeleton system with fast non-singular terminal sliding mode controller JF - MEDICAL ENGINEERING & PHYSICS J2 - MED ENG PHYS VL - 123 PY - 2024 PG - 16 SN - 1350-4533 DO - 10.1016/j.medengphy.2023.104080 UR - https://m2.mtmt.hu/api/publication/34660679 ID - 34660679 LA - English DB - MTMT ER - TY - JOUR AU - Otani, Tomohiro AU - Miyata, Kota AU - Miki, Atsuya AU - Wada, Shigeo TI - Computational study on the effects of central retinal blood vessels with asymmetric geometries on optic nerve head biomechanics JF - MEDICAL ENGINEERING & PHYSICS J2 - MED ENG PHYS VL - 123 PY - 2024 PG - 8 SN - 1350-4533 DO - 10.1016/j.medengphy.2023.104086 UR - https://m2.mtmt.hu/api/publication/34594861 ID - 34594861 AB - Optic nerve head (ONH) biomechanics are associated with glaucoma progression and have received considerable attention. Central retinal vessels (CRVs) oriented asymmetrically in the ONH are the single blood supply source to the retina and are believed to act as mechanically stable elements in the ONH in response to intraocular pressure (IOP). However, these mechanical effects are considered negligible in ONH biomechanical studies and received less attention. This study investigated the effects of CRVs on ONH biomechanics taking into consideration three-dimensional asymmetric CRV geometries. A CRV geometry was constructed based on CRV centerlines extracted from optical coherence tomography ONH images in eight healthy subjects and superimposed in the idealized ONH geometry established in previous studies. Mechanical analyses of the ONH in response to the IOP were conducted in the cases with and without CRVs for comparison. Obtained results demonstrated that the CRVs induced anisotropic ONH deformation, particularly in the lamina cribrosa and the associated upper neural tissues (prelamina) with wide ranges of spatial strain distributions. These results indicated that the CRVs result in anisotropic deformation with local strain concentration, rather than function to mechanically support in response to the IOP as in the conventional thinking in ophthalmology. LA - English DB - MTMT ER - TY - JOUR AU - Barmouz, M. AU - Uribe, L.V. AU - Ai, Q. AU - Azarhoushang, B. TI - Design and fabrication of a novel 4D-printed customized hand orthosis to treat cerebral palsy JF - MEDICAL ENGINEERING & PHYSICS J2 - MED ENG PHYS VL - 123 PY - 2024 SN - 1350-4533 DO - 10.1016/j.medengphy.2023.104087 UR - https://m2.mtmt.hu/api/publication/34496611 ID - 34496611 N1 - Institute of Precision Machining (KSF), Furtwangen University, Germany Mondragon University, Faculty of Engineering, Spain Export Date: 11 January 2024; Cited By: 0; Correspondence Address: M. Barmouz; Institute of Precision Machining (KSF), Furtwangen University, Germany; email: bamo@hs-furtwangen.de; CODEN: MEPHE LA - English DB - MTMT ER - TY - JOUR AU - Zhan, Jianan AU - Gan, Zhengli AU - Chou, Lijuan AU - Hu, Linqi AU - Zhou, Yan AU - Yang, Haiping AU - Chou, Yongxin TI - A fast permutation entropy for pulse rate variability online analysis with one-sample recursion JF - MEDICAL ENGINEERING & PHYSICS J2 - MED ENG PHYS VL - 120 PY - 2023 PG - 9 SN - 1350-4533 DO - 10.1016/j.medengphy.2023.104050 UR - https://m2.mtmt.hu/api/publication/34640028 ID - 34640028 N1 - Export Date: 28 February 2024; CODEN: MEPHE LA - English DB - MTMT ER - TY - JOUR AU - Abu Ghalia, Mustafa AU - Alhanish, Atika TI - Mechanical and biodegradability of porous PCL/PEG copolymer-reinforced cellulose nanofibers for soft tissue engineering applications JF - MEDICAL ENGINEERING & PHYSICS J2 - MED ENG PHYS VL - 120 PY - 2023 PG - 12 SN - 1350-4533 DO - 10.1016/j.medengphy.2023.104055 UR - https://m2.mtmt.hu/api/publication/34366743 ID - 34366743 AB - The design and development of a new class of biomaterial has gained particular interest in producing polymer scaffold for biomedical applications. Mechanical properties, biological and controlling pores scaffold of the biomaterials are important factors to encourage cell growth and eventual tissue repair and regeneration. In this study, poly-epsilon-caprolactone (PCL) /polyethylene glycol (PEG) copolymer (80/20) incorporated with CNF scaffolds were made employing solvent casting and particulate leaching methods. Four mass percentages of CNF (1, 2.5, 5, and 10 wt.%) were integrated into the copolymer through a silane coupling agent. Mechanical properties were determined using Tensile Tester data acquisition to investigate the effect of porosity, pore size, and CNF contents. Tensile strength obtained for PCL/PEG- 5 wt.% CNF was 16 MPa, which drastically decreased after creating a porous structure to 7.1 MPa. The optimum parameters of the results were found to be 5 wt.% for CNF, 240 mu m for pore size, and 83% for porosity. Scanning electron microscopy (SEM) micrograph reveals that consistent pore size and regular pore shape were accomplished after the addition of CNF-5 wt.% into PCL/PEG. The results of mass loss of PCL/PEG reinforced-CNF 1 % have clearly enhanced to double values compared with PCL/PEG copolymer and three times with PCL/PEG scaffold-CNF 1 %. In addition, all PCL/PEG reinforced and scaffoldCNF were partially disintegrated under composting conditions confirming their biodegradable behavior. This also provides a possible solution for the end life of these biomaterials. LA - English DB - MTMT ER - TY - JOUR AU - Wei, Yimin AU - Lei, Jingtao AU - Hu, Lei AU - Zhang, Lihai TI - Analysis and multiple index evaluation of SPO distribution of bone traction needles for pelvic fracture reduction JF - MEDICAL ENGINEERING & PHYSICS J2 - MED ENG PHYS VL - 119 PY - 2023 PG - 10 SN - 1350-4533 DO - 10.1016/j.medengphy.2023.104031 UR - https://m2.mtmt.hu/api/publication/34347576 ID - 34347576 AB - For robot-assisted pelvic fracture reduction, at least two bone needles need to be inserted into the ilium of the affected pelvis, and the robot clamping device is connected with the bone needles. The biomechanical properties of the pelvic musculoskeletal tissues are different with the different Spatial Position and Orientation (SPO) of the bone needles. In order to determine the optimal SPO of bone needle pairs, the constraints between the bone needles and the pelvis are analyzed, and the SPO vectors of 150 groups bone needles are obtained by the KNNhierarchical clustering method; a batch modeling method of bone needles with different SPO is proposed. 150 finite element models of damaged pelvic musculoskeletal tissue with different SPO of bone needles are established and simulated. The stress and strain distribution homogenization of musculoskeletal tissue with bone needles as evaluation index, the simulation results of 150 models are evaluated. Results show that, the anterior superior iliac spine and the anterior inferior iliac spine are suitable regions to place bone needles in the pelvis, and the optimal distribution of the needle combination is found in this region. The overall stress and strain distribution of the damaged pelvic musculoskeletal tissue under the large reduction force is the best. LA - English DB - MTMT ER -