Open Access
ARTICLE
P. Mythravaruni, K.Y. Volokh*
Molecular & Cellular Biomechanics, Vol.17, No.1, pp. 1-17, 2020, DOI:10.32604/mcb.2019.07606
Abstract We present a theoretical approach to study the onset of failure localization into cracks in arterial wall. The arterial wall is a soft composite comprising
hydrated ground matrix of proteoglycans reinforced by spatially dispersed elastin
and collagen fibers. As any material, the arterial tissue cannot accumulate and dissipate strain energy beyond a critical value. This critical value is enforced in the
constitutive theory via energy limiters. The limiters automatically bound reachable
stresses and allow examining the mathematical condition of strong ellipticity. Loss
of the strong ellipticity physically means inability of material to propagate superimposed waves. The waves cannot propagate because… More >
Open Access
ARTICLE
Tin-Kan Hung1,*, Ruei-Hung Kuo2, Cheng-Hsien Chiang3
Molecular & Cellular Biomechanics, Vol.17, No.1, pp. 19-24, 2020, DOI:10.32604/mcb.2019.07817
Abstract Kinematic and dynamic characteristics of pulsating flow in a model of
human aortic arch are obtained by a computational analysis. Three-dimensional
flow processes are summarized by pressure distributions on the symmetric plane
together with velocity and pressure contours on a few cross sections for systolic
acceleration and deceleration. Without considering the effects of aortic tapering
and the carotid arteries, the development of tubular boundary layer with
centrifugal forces and pulsation are also analyzed for flow separation and
backflow during systolic deceleration. More >
Open Access
ARTICLE
Ali. E. Dabiri1,2,*, Matthew Martin3, Ghassan S. Kassab1
Molecular & Cellular Biomechanics, Vol.17, No.1, pp. 25-31, 2020, DOI:10.32604/mcb.2019.07310
Abstract The world-wide impact of traumatic injury and associated hemorrhage
on human health and well-being is significant. Methods to manage bleeding from
sites within the torso, referred to as non-compressible torso hemorrhage (NCTH),
remain largely limited to the use of conventional operative techniques. The overall
mortality rate of patients with NCTH is approximately 50%. Studies from the wars
in Afghanistan and Iraq have suggested that up to 80% of potentially survivable
patients die as a result of uncontrolled exsanguinating hemorrhage. The
commercially available resuscitative endovascular balloon occlusion of the aorta
(REBOA) is a percutaneous device for the rapid control of torso… More >
Open Access
ARTICLE
Lulu Wang1,*
Molecular & Cellular Biomechanics, Vol.17, No.1, pp. 33-40, 2020, DOI:10.32604/mcb.2019.07165
Abstract CT and MRI are often used in the diagnosis and monitoring of stroke.
However, they are expensive, time-consuming, produce ionizing radiation (CT),
and not suitable for continuous monitoring stroke. Microwave imaging (MI) has
been extensively investigated for identifying several types of human organs,
including breast, brain, lung, liver, and gastric. The authors recently developed a
holographic microwave imaging (HMI) algorithm for biological object detection.
However, this method has difficulty in providing accurate information on
embedded small inclusions. This paper describes the feasibility of the use of a
multifrequency HMI algorithm for brain stroke detection. A numerical system,
including HMI data… More >
Open Access
ARTICLE
Maosen Lian1, Yi Li1, Xiaohui Gu1, Shouhua Luo1,*
Molecular & Cellular Biomechanics, Vol.17, No.1, pp. 41-48, 2020, DOI:10.32604/mcb.2019.07383
Abstract Motion artifacts of in vivo imaging, due to rapid respiration rate and
respiration displacements of the mice while free-breathing, is a major challenge in
micro computed tomography(micro-CT). The respiratory gating is often served for
either projective images acquisition or per projection qualification, so as to
eliminate the artifacts brought by in vivo motion. In this paper, we propose a novel
respiratory gating method, which firstly divides one rotation cycle into a number
of segments, and extracts the respiratory signal from the projective image series
of current segment by the value of the epipolar consistency conditions (ECC), then
in terms of… More >
Open Access
ARTICLE
Bin Yang1,2,3,*, Hao Sun1, Aiyuan Wang1, Qun Wang2
Molecular & Cellular Biomechanics, Vol.17, No.1, pp. 49-62, 2020, DOI:10.32604/mcb.2019.07534
Abstract In order to predict and evaluate injury mechanism and biomechanical
response of the facial impact on head injury in a crash accident. With the
combined modern medical imaging technologies, namely computed tomography
(CT) and magnetic resonance imaging (MRI), both geometric and finite element
(FE) models for human head-neck with detailed cranio-facial structure were
developed. The cadaveric head impact tests were conducted to validate the headneck finite element model. The intracranial pressure, skull dynamic response and
skull-brain relative displacement of the whole head-neck model were compared
with experimental data. Nine typical cases of facial traffic accidents were
simulated, with the individual… More >
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