Abstract:
:The monoexponential model is widely used in quantitative biomedical imaging. Notable applications include apparent diffusion coefficient (ADC) imaging and pharmacokinetics. The application of ADC imaging to the detection of malignant tissue has in turn prompted several studies concerning optimal experiment design for monoexponential model fitting. In this paper, we propose a new experiment design method that is based on minimizing the determinant of the covariance matrix of the estimated parameters (D-optimal design). In contrast to previous methods, D-optimal design is independent of the imaged quantities. Applying this method to ADC imaging, we demonstrate its steady performance for the whole range of input variables (imaged parameters, number of measurements, and range of b-values). Using Monte Carlo simulations we show that the D-optimal design outperforms existing experiment design methods in terms of accuracy and precision of the estimated parameters.
journal_name
Biomed Res Intjournal_title
BioMed research internationalauthors
Alipoor M,Maier SE,Gu IY,Mehnert A,Kahl Fdoi
10.1155/2015/138060subject
Has Abstractpub_date
2015-01-01 00:00:00pages
138060eissn
2314-6133issn
2314-6141journal_volume
2015pub_type
杂志文章abstract::Coronal decompensation is a common complication in Lenke 1 or 2 AIS patients after selective thoracic fusion (STF). However, the majority who developed immediately postoperative coronal decompensation experienced improvement and the related factors are not fully understood. The aim of this retrospective study was to i...
journal_title:BioMed research international
pub_type: 临床试验,杂志文章
doi:10.1155/2018/3476425
更新日期:2018-12-09 00:00:00
abstract::We evaluated whether the timing of maternal hypoxia during pregnancy influenced cardiac extracellular matrix accumulation in the adult offspring. Rats in different periods of pregnancy were assigned to maternal hypoxia or control groups. Maternal hypoxia from day 3 to 21 of pregnancy or day 9 to 21 of pregnancy increa...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2014/419805
更新日期:2014-01-01 00:00:00
abstract:Objective:Hepatitis B virus (HBV) causes inflammation of the liver and is the leading cause of both liver cirrhosis (LC) and hepatocellular carcinoma (HCC). Serine protease inhibitor Kazal type 1 (SPINK1) is an acute-phase response protein that is overexpressed in liver cancer tissue. This study investigated the clinic...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2019/9321494
更新日期:2019-05-22 00:00:00
abstract::The aim of the present study was to investigate the suitability of insoluble Eudragit® water dispersions (NE, NM, RL, and RS) for direct high-shear granulation of very soluble levetiracetam in order to decrease its burst effect from HPMC K100M matrices. The process characteristics, ss-NMR analysis, in vitro dissolutio...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2019/8043415
更新日期:2019-03-05 00:00:00
abstract:AIM:Cardiac rehabilitation (CR) is an important part of heart failure (HF) treatment. The aim of this paper was to evaluate if thoracic fluid content (TFC) measured by impedance cardiography (ICG) is a useful parameter for predicting the outcome of CR. METHODS:Fifty HF patients underwent clinical and noninvasive haemo...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2013/595369
更新日期:2013-01-01 00:00:00
abstract::We encapsulated tumor necrosis factor-α (TNF-α), a major proinflammatory cytokine, into cholesteryl pullulan (CHP) to prepare TNF/CHP nanoparticles. In this report, we describe the immune-enhancing capability of the nanoparticles to act as a vaccine adjuvant. TNF/CHP nanoparticles showed excellent storage stability an...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2015/471468
更新日期:2015-01-01 00:00:00
abstract::This paper represents data of long-term open prospective study. 312 male clean-up workers, who participated in elimination of the Chernobyl disaster consequences in 1986-87, were observed and examined in Moscow Research Institute of Psychiatry. The average age of patients was 57,0 ± 6,8 years. All patients were diagno...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2015/948473
更新日期:2015-01-01 00:00:00
abstract::Diverse high energy diets have been utilized to precipitate obesity and related metabolic disorders in rodent models, though the dietary intervention has not absolutely been standardized. The present study established usage of a customized semipurified normal control diet (NCD) and high fat diet (HFD), for research st...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2013/752870
更新日期:2013-01-01 00:00:00
abstract::Aldosterone synthase (CYP11B2) is a key enzyme for the biosynthesis of aldosterone, which plays a significant role for the regulation of blood pressure. Excess aldosterone can cause the dysregulation of the renin-angiotensin-aldosterone system (RAAS) and lead to hypertension. Therefore, research and development of CYP...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2016/4182595
更新日期:2016-01-01 00:00:00
abstract:Objective:Delays in skeletal maturity are related to bone mass and fracture risk in children, but the factors that determine it are unknown. We aimed to identify the association between insulin-like growth factor-1 (IGF-1) and skeletal maturation before and after growth hormone (GH) treatment. Methods:In this retrospe...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2020/8052143
更新日期:2020-08-13 00:00:00
abstract::One of the most important tasks of a living organism is to maintain its genetic integrity with respect to stress. Endoplasmic reticulum (ER) has a crucial role in sensing cellular homeostasis by controlling metabolism, proteostasis, and several signaling processes. ER stressors can induce autophagy-dependent survival;...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2015/319589
更新日期:2015-01-01 00:00:00
abstract::Functional connectivity has been correlated with a patient's level of consciousness and has been found to be altered in several neuropsychiatric disorders. Absence epilepsy patients, who experience a loss of consciousness, are assumed to suffer from alterations in thalamocortical networks; however, previous studies ha...
journal_title:BioMed research international
pub_type: 临床试验,杂志文章
doi:10.1155/2013/734893
更新日期:2013-01-01 00:00:00
abstract::Liquid and solid samples from two wastewater treatment plants (WWTPs) on Gran Canaria Island (Spain) have been tested for the presence of compounds with endocrine-disrupting properties. The selected degradation stages were sampled bimonthly from each WWTP over the 12-month period from July 2010 to July 2011. The analy...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2013/790570
更新日期:2013-01-01 00:00:00
abstract::The 13 million nurses worldwide constitute most of the global healthcare workforce and are uniquely positioned to engage with others to address disparities in healthcare to achieve the goal of better health for all. A new vision for nurses involves active participation and collaboration with international colleagues a...
journal_title:BioMed research international
pub_type: 杂志文章,评审
doi:10.1155/2016/3127543
更新日期:2016-01-01 00:00:00
abstract::Skin reaction is major problem during whole breast radiotherapy. To identify factors related to skin reactions during whole breast radiotherapy, various personal, clinical, and radiation dosimetric parameters were evaluated. From January 2012 to December 2013, a total of 125 patients who underwent breast conserving su...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2016/3656574
更新日期:2016-01-01 00:00:00
abstract::The impairment of wound healing in diabetic patients is an important clinical problem affecting millions of patients worldwide. Various clinical and basic science studies show that stem cell therapy, as a regenerative medical therapy, can be a good solution. In this paper, we begin with an introduction of the cellular...
journal_title:BioMed research international
pub_type: 杂志文章,评审
doi:10.1155/2013/462179
更新日期:2013-01-01 00:00:00
abstract::Craniofacial reconstruction is to estimate a person's face model from the skull. It can be applied in many fields such as forensic medicine, archaeology, and face animation. Craniofacial reconstruction is based on the relationship between the skull and the face to reconstruct the facial appearance from the skull. Howe...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2020/8835179
更新日期:2020-12-04 00:00:00
abstract:Background:sCD30 and sCD26 are correlated with autoimmune diseases. However, little research has been done on the relationship between them and primary immune thrombocytopenia (ITP). Methods:This study enrolled 47 patients diagnosed with ITP in the Institute of Hematology and Blood Disease Hospital, Chinese Academy of...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2020/1279371
更新日期:2020-03-31 00:00:00
abstract:Background:Identification of potential molecular targets of acute myocardial infarction is crucial to our comprehensive understanding of the disease mechanism. However, studies of gene coexpression analysis via jointing multiple microarray data of acute myocardial infarction still remain restricted. Methods:Microarray...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2019/5742608
更新日期:2019-02-11 00:00:00
abstract::A number of statistical methods for detecting gene-gene interactions have been developed in genetic association studies with binary traits. However, many phenotype measures are intrinsically quantitative and categorizing continuous traits may not always be straightforward and meaningful. Association of gene-gene inter...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2015/523641
更新日期:2015-01-01 00:00:00
abstract::The characteristics of FDG uptake in the physiologic and malignant nasopharynx were investigated in the paper which was correlated with either pathologic findings or clinical follow-up. Three patients had pathologically established nasopharyngeal malignancy. In the 3 nasopharyngeal malignancies, 2 had diffusely and ex...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2015/354970
更新日期:2015-01-01 00:00:00
abstract::Anterior cruciate ligament injuries are common in humans, though cellular components of the knee have little regenerative or proliferation potential. This study investigated the differentiation of human amnion-derived mesenchymal stem cells (hAMSCs) into human anterior cruciate ligament fibroblasts (hACLFs) in vitro t...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2017/7360354
更新日期:2017-01-01 00:00:00
abstract::Aging is the principal risk factor for the development of Alzheimer's disease (AD). The hallmarks of AD are accumulation of the amyloid-β peptide 1-42 (Aβ42) and abnormal hyperphosphorylation of Tau (p-Tau) protein in different areas of the brain and, more recently reported, in the visual cortex. Recently, Aβ42 peptid...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2017/3706018
更新日期:2017-01-01 00:00:00
abstract::Objective. This study was aimed at analyzing the expressions of long noncoding RNAs (lncRNAs) in Botulinum Toxin Type A (BoNTA) treated human dermal fibroblasts (HDFs) in vitro. Methods. We used RNA sequencing to characterize the lncRNAs and mRNAs transcriptome in the control and BoNTA treated group, in conjunction wi...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2017/2957941
更新日期:2017-01-01 00:00:00
abstract::Lung cancer consists of two main subtypes: small-cell lung cancer (SCLC) and non-small-cell lung cancer (NSCLC) that are classified according to their physiological phenotypes. In this study, we have developed a network-based approach to identify molecular biomarkers that can distinguish SCLC from NSCLC. By identifyin...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2015/685303
更新日期:2015-01-01 00:00:00
abstract:Background:Ankylosing spondylitis (AS) is a chronic inflammatory disease characterized by sacroiliitis and spinal rigidity of the axial joints. The role of oxidative stress and increased proinflammatory cytokines is well documented in AS pathogenesis. Punicalagin (2,3-hexahydroxydiphenoyl-gallagyl-D-glucose), an ellagi...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2020/4918239
更新日期:2020-09-23 00:00:00
abstract::Big data bioinformatics aims at drawing biological conclusions from huge and complex biological datasets. Added value from the analysis of big data, however, is only possible if the data is accompanied by accurate metadata annotation. Particularly in high-throughput experiments intelligent approaches are needed to kee...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2015/958302
更新日期:2015-01-01 00:00:00
abstract:BACKGROUND:The presence of common risk factors suggests that there is a relationship between osteoporosis and cardiovascular disease, possibly via dyslipidemia and inflammation. We investigated the relationships among the lipid profile, the inflammation marker high-sensitivity C-reactive protein (hsCRP), bone turnover ...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2014/398397
更新日期:2014-01-01 00:00:00
abstract::The aim of the present study was to evaluate the antitumor potential of iminoflavones in in vitro and in vivo anticancer models. Preliminary screening in various cancer cell lines revealed four potential iminoflavones out of which IMF-8 was taken based on its activity against colon cancer cells. This was further confi...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2014/569130
更新日期:2014-01-01 00:00:00
abstract:Introduction:The aim of the study was to analyze which variables influenced the completion of a cold loop hysteroscopic myomectomy in a one-step procedure in a large cohort of patients. Materials and Methods:A retrospective cohort study of 1434 cold loop resectoscopic myomectomies consecutively performed. The study po...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2018/8429047
更新日期:2018-05-20 00:00:00