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BACKGROUND For the treatment of low back pain, the following three scenarios of posterior lumbar interbody fusion (PLIF) were usually used, i.e., PLIF procedure with autogenous iliac bone (PAIB model), PLIF with cages made of PEEK (PCP model) or titanium (Ti) (PCT model) materiel. But the benefits or adverse effects among the three surgical scenarios were(More)
Deep tissue injury (DTI) is a severe kind of pressure ulcers formed by sustained deformation of muscle tissues over bony prominences. As a major clinical issue, DTI affects people with physical disabilities, and is obviously related to the load-bearing capacity of muscle cells in various in vivo conditions. It has been hypothesized that oxidative stress,(More)
Object: To establish a non-linear finite element (FE) model for human L4–L5 lumbar segment and verify its reliability. Method: A FE model of human L4–L5 lumbar segment was established. Some empirical expressions were used to simulate the mechanical properties of vertebral body. The annulus fibrosus and nucleus were assigned hyper-elastic(More)
BACKGROUND The progression of colorectal cancer (CRC) may differ depending on the location of the tumor and the age of onset of the disease. Previous studies also suggested that the molecular basis of CRC varies with tumor location, which could affect the clinical management of patients. Therefore, we performed survival analysis looking at different age(More)
The construction of statistical shape model (SSM) is an important research topic in medical imaging benefited from its robust and nature represent of anatomical structures. Place-march of corresponding landmarks is one of the major factors influencing 3D SSM quality. In this paper, we present a supervised correspondence method for fast building SSM, which(More)
Constructing models based on computed tomog-raphy images for finite element analysis (FEA) is challenging under pathological conditions. In the present study, an innovative method was introduced that uses Siemens syngo ® 3D software for processing models and Mimics software for further modeling. Compared with the slice-by-slice traditional manual margin(More)
The aim of this paper is to investigate the influence of microstructural parameters of senile vertebral cancellous bone on the apparent elastic moduli of three orthogonal directions. Thirty-six cubic regions of interest were obtained from six L4 vertebral bodies with the ages of 60–70. After scanned by a Micro-Computed Tomography (Micro-CT) system,(More)
—We observed structure and form of adult anulus fibrous of lumbar intervertebral disc at fibrous layer level. Anulus fibrosus of lumbar interverbral disc was delaminated microsurgical technique. 8 testing points were taken in each layer and the angles between their fibers going and horizontal plane were measured. We got the results: Fiber going angle at(More)
— As the atmospheric degradation of the fog image is low contrast and the blurred scene, which has serious impact on the transport system and the application of outdoor vision systems. In order to deal with the details information of fog image, a method for improving image definition based on image segmentation and image enhancement technologies is(More)
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