Abstract：
:The aim of this study is to design a statistical segmentation technique to allow extraction of grey matter, white matter and cerebral spinal fluid volumes from diffusion tensor imaging. Four channel maps of the DTI are used as the input features, which provide more information for brain tissue segmentation compared with single channel map. An Improved Bayesian decision in the subspace spanned by the eigenvectors which are associated with the smaller eigenvalues in each class is adopted as the brain tissue segmentation criterion. Our method performed well, giving an average segmentation accuracy of about 0.88, 0.85 and 0.76 for white matter, gray matter and cerebrospinal fluid respectively in terms of volume overlap.
journal_name
Biomed Mater Engjournal_title
Bio-medical materials and engineeringauthors
Wen Y,He Ldoi
10.3233/BME-130927subject
Has Abstractpub_date
2014-01-01 00:00:00pages
1253-9issue
1eissn
0959-2989issn
1878-3619pii
870617471Q5152Q5journal_volume
24pub_type
杂志文章abstract：:Tissue engineering is a multidisciplinary field that applies the principles of engineering, life sciences, cell and molecular biology toward the development of biological substitutes that restore, maintain, and improve tissue function. In Western Countries, tissues or cells management for clinical uses is a medical ac...
journal_title：Bio-medical materials and engineering
pub_type： 杂志文章
doi：10.3233/BME-2010-0624
更新日期：2010-01-01 00:00:00
abstract：:Fracture toughness (KIC), critical stress intensity factor, and bending strength of 3 types of commercially available dental composite resins (macrofilled, hybrid and microfilled type) were determined using three point bend specimens. Acoustic Emission (AE), which is the generation of elastic wave due to the release o...
journal_title：Bio-medical materials and engineering
pub_type： 杂志文章
doi：
更新日期：1991-01-01 00:00:00
abstract：:The mechanical properties of a contracting smooth muscle can be changed by changing its length. A viscoelastic material model was developed to predict the length-dependent stiffness changes when a constrained muscle is allowed to shorten under a constant external force. Three-dimensional finite element simulations wer...
journal_title：Bio-medical materials and engineering
pub_type： 杂志文章
doi：
更新日期：1997-01-01 00:00:00
abstract：:A layer of L-glycine-molecule-imprinted polyaniline (LMIP-PANI) polymer film has been modified on a carbon fiber electrode for the determination of L-glycine standard samples and L-glycine in cerebrospinal fluid of wistar mice. It has been found that a linear relationship exists between current and concentration for t...
journal_title：Bio-medical materials and engineering
pub_type： 杂志文章
doi：10.3233/BME-130907
更新日期：2014-01-01 00:00:00
abstract：:To build a patient specific respiratory motion model with a low dose, a novel method was proposed that uses a limited number of 3D lung CT volumes with an external respiratory signal. 4D lung CT volumes were acquired for patients with in vitro labeling on the upper abdominal surface. Meanwhile, 3D coordinates of in vi...
journal_title：Bio-medical materials and engineering
pub_type： 杂志文章
doi：10.3233/BME-141133
更新日期：2014-01-01 00:00:00
abstract：UNLABELLED:It is suggested that nanophase hydroxyapatite (nHAP) might have advantages over conventional hydroxyapatite (cHAP) as a biomaterial for bone regeneration. To be a satisfactory candidate for bone tissue engineering, it is important to support the growth and differentiation of bone marrow-derived mesenchymal s...
journal_title：Bio-medical materials and engineering
pub_type： 杂志文章
doi：
更新日期：2007-01-01 00:00:00
abstract：OBJECTIVE:Normal pregnancy is associated with profound alterations in the maternal cardiovascular system and PPG represents a sensitive and convenient technique capable of tracking changes in the pulsatile function of arteries. The aim of this study was to investigate the effects of maternal cardiovascular alterations ...
journal_title：Bio-medical materials and engineering
pub_type： 杂志文章
doi：10.3233/BME-130801
更新日期：2014-01-01 00:00:00
abstract：:The effect of carbonate in reducing the crystal size of precipitated hydroxyapatite by approximately an order of magnitude has not been used previously in the preparation of gel monoliths for the fabrication of carbonate hydroxyapatite ceramics. The aim of this study was to devise a method whereby gel monoliths of car...
journal_title：Bio-medical materials and engineering
pub_type： 杂志文章
doi：
更新日期：1996-01-01 00:00:00
abstract：:Poly(N-substituted alpha/beta-asparagine) was evaluated as a thermoresponsible and an injectable scaffold for cartilage regeneration. Solutions of this polymer are liquid state below 25 degrees C and nonfluid hydrogel above 35 degrees C, allowing an aqueous solution containing cells at room temperature to form a hydro...
journal_title：Bio-medical materials and engineering
pub_type： 杂志文章
doi：
更新日期：2007-01-01 00:00:00
abstract：:Porous polyethylene (PP or Medpor) is an alloplastic material worldwide used for craniofacial reconstruction. Although several clinical studies are available, there is a lack as regard the genetic effects. Because PP is always fixed on bone and the mechanism by which PP acts on osteoblasts is unknown, we therefore att...
journal_title：Bio-medical materials and engineering
pub_type： 杂志文章
doi：
更新日期：2008-01-01 00:00:00
abstract：BACKGROUND:The most common cause of coronary artery disease (CAD) is vascular damage with the cholesterol built-up and other materials on the inner arterial wall, known as atherosclerosis. OBJECTIVE:This paper aims to investigate the effect of stenosis on the hemodynamics in the four suspected coronary artery disease ...
journal_title：Bio-medical materials and engineering
pub_type： 杂志文章
doi：10.3233/BME-191067
更新日期：2019-01-01 00:00:00
abstract：:Resorbable ceramics can promote the bony integration of implants. Their rate of degradation should ideally be synchronized with bone regeneration. This study examined the effect of rapidly resorbable calcium phosphate ceramics 602020, GB14, 305020 on adherence, proliferation and morphology of human bone-derived cells ...
journal_title：Bio-medical materials and engineering
pub_type： 杂志文章
doi：10.3233/BME-2012-0678
更新日期：2011-01-01 00:00:00
abstract：:In this study, biocompatibility of 17-4 PH stainless steel foam for biomedical implant applications was investigated. 17-4 PH stainless steel foams having porosities in the range of 40-82% with an average pore size of around 600 μm were produced by space holder-sintering technique. Sintered foams were precipitation ha...
journal_title：Bio-medical materials and engineering
pub_type： 杂志文章
doi：10.3233/BME-2011-0671
更新日期：2011-01-01 00:00:00
abstract：BACKGROUND:Great potential of cellular therapies has generated extensive research in the field of cells harvesting and culturing. Transplantation of cell cultures has been used in a variety of therapeutic programs but in many cases it appeared that biomaterial scaffold or sheath would enhance cells regenerative potenti...
journal_title：Bio-medical materials and engineering
pub_type： 杂志文章
doi：10.3233/BME-140966
更新日期：2014-01-01 00:00:00
abstract：:Three patterned systems aiming at the control of mammalian cell behavior are presented. The determinant feature common to these systems is the spatial distribution of extracellular matrix (ECM) proteins (mainly collagen) on polymer substrates. This distribution differs from one system to another with respect to the sc...
journal_title：Bio-medical materials and engineering
pub_type： 杂志文章
doi：
更新日期：2004-01-01 00:00:00
abstract：:Since adhesive technology was introduced into dental field, metal-based restoration has been gradually replaced by metal-free restoration. Using the adhesive technology, minimum invasive technique has been possible in daily clinical practice as well as esthetic tooth-colored restorations have become very popular all o...
journal_title：Bio-medical materials and engineering
pub_type： 杂志文章,评审
doi：10.3233/BME-2009-0587
更新日期：2009-01-01 00:00:00
abstract：:Hydroxyapatite was coated with 1 microm thickness on titanium columns of a length of 10 mm, an outer diameter of 4.0 mm by radio frequency magnetron sputtering. The hydroxyapatite coating titanium columns were implanted in the diaphysis of femora of 3 adult dogs, and push-out test was carried out after 2, 4 and 12 wee...
journal_title：Bio-medical materials and engineering
pub_type： 杂志文章
doi：
更新日期：2001-01-01 00:00:00
abstract：:Stroke is a major cause of death and disability throughout the world. Subtotal occlusion of the carotid artery is an important risk factor for stroke. Carotid artery stenting (CAS) is increasingly being used for treatment of carotid artery stenosis. There are many reports on treating carotid artery stenosis by CAS; ho...
journal_title：Bio-medical materials and engineering
pub_type： 杂志文章
doi：10.3233/BME-2012-0687
更新日期：2012-01-01 00:00:00
abstract：:An alternative non-vascular extracellular material was obtained by decellularisation of porcine urinary bladder and examined for its potential as scaffold for vascular tissue engineering. Analysis using Scanning Electron Microscopy (SEM), Atomic Force Microscopy (AFM) and Laser Scanning Microscopy (LSCM) showed a poro...
journal_title：Bio-medical materials and engineering
pub_type： 杂志文章
doi：10.3233/BME-2009-0598
更新日期：2009-01-01 00:00:00
abstract：:Robotized endoscope holder in laparoscopic surgeries allows surgeons to control the endoscope without the assistants' intervention. In this paper, a new method is proposed for the automatic 3D-tracking of laparoscopic instruments in real-time to provide more convenient interactions between surgeons and the robotized e...
journal_title：Bio-medical materials and engineering
pub_type： 杂志文章
doi：10.3233/BME-141083
更新日期：2014-01-01 00:00:00
abstract：:The objective of the present study was to find a standard substance for use as a reference in the cytotoxicity assay of biomaterials, as an alternative to animal experiments in recent years. Eight kinds of rubber were made in a plate shape to keep their surface area at 1 cm2 against 10 ml of extract volume. They were ...
journal_title：Bio-medical materials and engineering
pub_type： 杂志文章
doi：
更新日期：1994-01-01 00:00:00
abstract：:This paper presents an X-ray diffraction method of measuring the residual stress/strain in bone tissue of rabbit's tibia. To derive the residual stress, bone powder of the diameter less than 40 micrometers was used as a control specimen at non-stressed state. From the X-ray measurements, it was clear that the distribu...
journal_title：Bio-medical materials and engineering
pub_type： 杂志文章
doi：
更新日期：2006-01-01 00:00:00
abstract：:This paper presents the single channel speech enhancement system using subband Kalman filtering by estimating optimal Autoregressive (AR) coefficients and variance for speech and noise, using Weighted Linear Prediction (WLP) and Noise Weighting Function (NWF). The system is applied for normal and Oesophageal speech si...
journal_title：Bio-medical materials and engineering
pub_type： 杂志文章
doi：10.3233/BME-141183
更新日期：2014-01-01 00:00:00
abstract：:The interaction between implant materials and bone cells or oral epithelial (OE) cells contributes to the clinical success of dental implants. The functional activity of cells in contact with an implant is determined by its surface properties. Before cells attach, extracellular matrix (ECM) in the serum deposits on th...
journal_title：Bio-medical materials and engineering
pub_type： 杂志文章,评审
doi：
更新日期：2004-01-01 00:00:00
abstract：BACKGROUND:Previously we found that a group of phosphorylated proteins (SIBLINGs) in bone binds with the Ti-device, and increases the early bone formation around the Ti-implants remarkably. From these results, we explained the biochemical mechanism of a strong bond between living bone and Ti, which was discovered by Br...
journal_title：Bio-medical materials and engineering
pub_type： 杂志文章
doi：10.3233/BME-201079
更新日期：2020-01-01 00:00:00
abstract：:Intraocular lenses (IOL) made of polymethyl methacrylate (PMMA) lack an important yellowish pigment useful as a filter in the visual process and in the protection of the retina from short wavelength light. It was found that the PMMA used for IOL manufacturing can be tinted by dry exposure to mercury near-UV emitting l...
journal_title：Bio-medical materials and engineering
pub_type： 杂志文章
doi：
更新日期：1994-01-01 00:00:00
abstract：:PVA-hydrogel has excellent biocompatibility as well as preferable tribological characteristics as an artificial articular cartilage. One of the most difficult problems is the attachment of PVA-hydrogel to the underlying bone (or metal substrate). In the present study, the micro-mechanical attachment between the PVA-hy...
journal_title：Bio-medical materials and engineering
pub_type： 杂志文章
doi：
更新日期：1999-01-01 00:00:00
abstract：:Poly(propylene fumarate-co-ethylene glycol) random (PPF-1) and block (PPF-2) copolymer oligomers were prepared. Comparing the setting characteristics of PPF-1 and PPF-2 with comonomer n-vinyl pyrrolidone (n-VP) and swelling characteristics of cured PPF-1 and PPF-2, lower setting temperature and setting time was observ...
journal_title：Bio-medical materials and engineering
pub_type： 杂志文章
doi：
更新日期：2000-01-01 00:00:00
abstract：:The balance between extracellular inorganic phosphate (ePi) and extracellular inorganic pyrophosphate (ePPi) is controlled by four membrane proteins: the transporters ANK (exporting PPi outside the cells) and PiT-1 (importing ePi into the cells), and the enzymes PC-1 (generating ePPi from nucleotides) and Tissue Non-s...
journal_title：Bio-medical materials and engineering
pub_type： 杂志文章
doi：10.3233/BME-2010-0634
更新日期：2010-01-01 00:00:00
abstract：:In this study, design optimization of a tooth implant-supported fixed prosthesis was investigated theoretically. A three-dimensional finite element analysis was utilized to simulate the stress distribution and deformation, with an emphasis on the material selection for various parts of the prosthesis. This mandibular ...
journal_title：Bio-medical materials and engineering
pub_type： 杂志文章
doi：
更新日期：2005-01-01 00:00:00
