Abstract:
:Correlation of parametrized image texture features (ITF) analyses conducted in different regions of interest (ROIs) overcomes limitations and reliably reflects image quality. The aim of this study is to propose a nonparametrical method and classify the quality of a magnetic resonance (MR) image that has undergone controlled degradation by using textural features in the image. Images of 41 patients, 17 women and 24 men, aged between 23 and 56 years were analyzed. T2-weighted sagittal sequences of the lumbar spine, cervical spine, and knee and T2-weighted coronal sequences of the shoulder and wrist were generated. The implementation of parallel imaging with the use of GRAPPA2, GRAPPA3, and GRAPPA4 led to a substantial reduction in the scanning time but also degraded image quality. The number of degraded image textural features was correlated with the scanning time. Longer scan times correlated with markedly higher ITF image persistence in comparison with images computed with reduced scan times. Higher ITF preservation was observed in images of bones in the spine and femur as compared to images of soft tissues, i.e., tendons and muscles. Finally, a nonparametrized image quality assessment based on an analysis of the ITF, computed for different tissues, correlating with the changes in acquisition time of the MR images, was successfully developed. The correlation between acquisition time and the number of reproducible features present in an MR image was found to yield the necessary assumptions to calculate the quality index.
journal_name
Biomed Res Intjournal_title
BioMed research internationalauthors
Obuchowicz R,Piórkowski A,Urbanik A,Strzelecki Mdoi
10.1155/2019/3706581subject
Has Abstractpub_date
2019-11-20 00:00:00pages
3706581eissn
2314-6133issn
2314-6141journal_volume
2019pub_type
杂志文章abstract::Cancer treatment is undergoing a significant revolution from "one-size-fits-all" cytotoxic therapies to tailored approaches that precisely target molecular alterations. Precision strategies for drug development and patient stratification, based on the molecular features of tumors, are the next logical step in a long h...
journal_title:BioMed research international
pub_type: 杂志文章,评审
doi:10.1155/2017/9620870
更新日期:2017-01-01 00:00:00
abstract::Introduction. Infection and apoptosis are combined triggers for inflammation in dental tissues. Octamer-binding transcription factor 4-B1 (OCT4B1), a novel spliced variant of OCT4 family, could respond to the cellular stress and possess antiapoptotic property. However, its specific role in dental pulpitis remains unkn...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2017/2756891
更新日期:2017-01-01 00:00:00
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journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2020/9127610
更新日期:2020-09-23 00:00:00
abstract::Nontuberculous mycobacteria (NTM) are ubiquitous in the environment and exist as an important cause of pulmonary infections in humans. Pulmonary involvement is the most common disease manifestation of NTM and the incidence of NTM is growing in North America. Susceptibility to NTM infection is incompletely understood; ...
journal_title:BioMed research international
pub_type: 杂志文章,评审
doi:10.1155/2014/919474
更新日期:2014-01-01 00:00:00
abstract::Oral mucosa is an attractive region for the local and systemic application of many drugs. Oral mucoadhesive films are preferred for their prolonged time of residence, the improved bioavailability of the drug they contain, their painless application, their protection against lesions, and their nonirritating properties....
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2014/179568
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journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2020/5246350
更新日期:2020-02-27 00:00:00
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journal_title:BioMed research international
pub_type: 杂志文章,评审
doi:10.1155/2018/4785089
更新日期:2018-12-05 00:00:00
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journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2013/574934
更新日期:2013-01-01 00:00:00
abstract::The recombinant catalase-peroxidase HPI from E. coli was used as an alternative enzyme in polymerization reactions for the production of (-) epicatechin oligomers and their biological activity was characterized. The enzyme was prepared in two forms: a purified and an immobilized form. Both were tested for their activi...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2018/3828627
更新日期:2018-04-23 00:00:00
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journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2019/2721578
更新日期:2019-04-24 00:00:00
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journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2015/783592
更新日期:2015-01-01 00:00:00
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journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2013/872739
更新日期:2013-01-01 00:00:00
abstract::Energy dispersive X-ray spectroscopy microanalysis (EDX), scanning electron microscopy (SEM), and Archimedes' Principle were used to determine the characteristics of inorganic filler particles in five dental alginates, including Cavex ColorChange (C), Hydrogum 5 (H5), Hydrogum (H), Orthoprint (O), and Jeltrate Plus (J...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2014/178064
更新日期:2014-01-01 00:00:00
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journal_title:BioMed research international
pub_type: 临床试验,杂志文章
doi:10.1155/2018/1571807
更新日期:2018-05-15 00:00:00
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journal_title:BioMed research international
pub_type: 杂志文章,评审
doi:10.1155/2015/951081
更新日期:2015-01-01 00:00:00
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journal_title:BioMed research international
pub_type: 杂志文章,评审
doi:10.1155/2018/9652305
更新日期:2018-06-13 00:00:00
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journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2020/8930968
更新日期:2020-08-15 00:00:00
abstract:Background:Although sleeve gastrectomy results in good weight loss and metabolic improvements, it is an irreversible procedure. Therefore, we attempted to assess the possibility of creating a sleeved stomach without resection. Material and Methods. A total of 22 male Sprague-Dawley rats with type 2 diabetes were random...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2020/9024923
更新日期:2020-05-01 00:00:00
abstract::The proper methylation status of histones is essential for appropriate cell lineage and organogenesis. EZH2, a methyltransferase catalyzing H3K27me3, has been abundantly studied in human and mouse embryonic development. The pig is an increasing important animal model for molecular study and pharmaceutical research. Ho...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2020/5315930
更新日期:2020-10-05 00:00:00
abstract::The aim of the study was to assess the granulocyte colony-stimulating factor (G-CSF) effects on unresponsive thin (<7 mm) endometrium in women undergoing in vitro fertilization (IVF). We included thirty-seven subjects who had thin unresponsive endometrium on the day of triggering ovulation. These patients also failed ...
journal_title:BioMed research international
pub_type: 临床试验,杂志文章
doi:10.1155/2014/913235
更新日期:2014-01-01 00:00:00
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journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2015/673018
更新日期:2015-01-01 00:00:00
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journal_title:BioMed research international
pub_type: 杂志文章,评审
doi:10.1155/2015/690492
更新日期:2015-01-01 00:00:00
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journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2013/387673
更新日期:2013-01-01 00:00:00
abstract::Protein phosphorylation is one of the most widespread regulatory mechanisms in eukaryotes. Over the past decade, phosphorylation site prediction has emerged as an important problem in the field of bioinformatics. Here, we report a new method, termed Random Forest-based Phosphosite predictor 2.0 (RF-Phos 2.0), to predi...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2016/3281590
更新日期:2016-01-01 00:00:00
abstract::Targeting nanoparticles by conjugating various specific ligands has shown potential therapeutic efficacy in nanomedicine. However, poor penetration of antitumor drugs into solid tumors remains a major obstacle. Here, we describe a targeting strategy for antitumor drug delivery by conjugating a crosslinked multilamella...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2013/378380
更新日期:2013-01-01 00:00:00
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journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2020/2061509
更新日期:2020-03-23 00:00:00
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journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2014/537941
更新日期:2014-01-01 00:00:00
abstract:Background:The kaya business is known to pose significant health-related risks to female migrants. This study sought to explore the health-related concerns of female head porters in the Mallam Atta market, Accra, Ghana. Methods:A qualitative study was conducted in which twenty female head porters at the Mallam Atta ma...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2018/6201837
更新日期:2018-02-13 00:00:00
abstract:Objectives:The study aimed to compare the accuracy of different methods of data acquisition and data reconstruction and to assess their usefulness for 3D printing of tooth replicas. Methods:3-dimensional models of molar and canine teeth obtain utilizing CBCT examination with different protocols, and optical scanning w...
journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2019/4985121
更新日期:2019-04-10 00:00:00
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journal_title:BioMed research international
pub_type: 杂志文章
doi:10.1155/2018/7279036
更新日期:2018-07-26 00:00:00