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https://www.readbyqxmd.com/read/28640836/craniofacial-similarity-analysis-through-sparse-principal-component-analysis
#1
Junli Zhao, Fuqing Duan, Zhenkuan Pan, Zhongke Wu, Jinhua Li, Qingqiong Deng, Xiaona Li, Mingquan Zhou
The computer-aided craniofacial reconstruction (CFR) technique has been widely used in the fields of criminal investigation, archaeology, anthropology and cosmetic surgery. The evaluation of craniofacial reconstruction results is important for improving the effect of craniofacial reconstruction. Here, we used the sparse principal component analysis (SPCA) method to evaluate the similarity between two sets of craniofacial data. Compared with principal component analysis (PCA), SPCA can effectively reduce the dimensionality and simultaneously produce sparse principal components with sparse loadings, thus making it easy to explain the results...
2017: PloS One
https://www.readbyqxmd.com/read/28636823/how-bacteria-respond-to-material-stiffness-during-attachment-a-role-of-escherichia-coli-flagellar-motility
#2
Fangchao Song, Megan E Brasch, Hao Wang, James H Henderson, Karen Sauer, Dacheng Ren
Material stiffness has been shown to have potent effects on bacterial attachment and biofilm formation, but the mechanism is still unknown. In this study, response to material stiffness by Escherichia coli during attachment was investigated with biofilm assays and cell tracking using the Automated Contour-base Tracking for In Vitro Environments (ACTIVE) computational algorithm. By comparing the movement of E. coli cells attached on poly(dimethylsiloxane) (PDMS) surfaces of different Young's moduli (0.1 and 2...
June 21, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28635587/ictv-virus-taxonomy-profile-ophioviridae
#3
María Laura García, Elena Dal Bó, John V da Graça, Selma Gago-Zachert, John Hammond, Pedro Moreno, Tomohide Natsuaki, Vicente Pallás, Jose A Navarro, Carina A Reyes, Gabriel Robles Luna, Takahide Sasaya, Ioannis E Tzanetakis, Anna María Vaira, Martin Verbeek, Ictv Report Consortium
The Ophioviridae is a family of filamentous plant viruses, with single-stranded negative, and possibly ambisense, RNA genomes of 11.3-12.5 kb divided into 3-4 segments, each encapsidated separately. Virions are naked filamentous nucleocapsids, forming kinked circles of at least two different contour lengths. The sole genus, Ophiovirus, includes seven species. Four ophioviruses are soil-transmitted and their natural hosts include trees, shrubs, vegetables and bulbous or corm-forming ornamentals, both monocots and dicots...
June 21, 2017: Journal of General Virology
https://www.readbyqxmd.com/read/28634702/rectus-abdominis-fat-transfer-raft-in-lipoabdominoplasty-a-new-technique-to-achieve-fitness-body-contour-in-patients-that-require-tummy-tuck
#4
Stefan Danilla
OBJECTIVE: To describe a new technique to achieve a fit-look in lipoabdominoplasty patients through liposculpture and rectus abdominis fat transfer (RAFT). METHODS: Patients with a body mass index under 26 and of both genders scheduled for abdominoplasty or body lift were selected for this procedure. Fat was transferred directly to the rectus abdominis muscle after flap elevation during lipoabdominoplasty. RESULTS: A total of 26 patients were operated on with this technique...
June 20, 2017: Aesthetic Plastic Surgery
https://www.readbyqxmd.com/read/28634700/management-of-tuberous-breast-deformities-review-of-long-term-outcomes-and-patient-satisfaction-with-breast-q
#5
Stefania Tenna, Barbara Cagli, Beniamino Brunetti, Mauro Barone, Paolo Persichetti
BACKGROUND: The treatment of a tuberous breast deformity has changed over the years, with a large variety of procedures described. However, maintaining a long-lasting breast contour is an ongoing challenge. The aim of this study was to evaluate the long-term results of tuberous breast corrections, focusing on the incidence of secondary procedures and patient satisfaction. MATERIALS AND METHODS: Forty-six patients who underwent correction of a tuberous breast deformity from 2000 through 2013 were considered...
June 20, 2017: Aesthetic Plastic Surgery
https://www.readbyqxmd.com/read/28634673/b-mode-and-doppler-ultrasound-of-chronic-kidney-disease-in-dogs-and-cats
#6
REVIEW
Nathália Bragato, Naida Cristina Borges, Maria Clorinda Soares Fioravanti
Ultrasound is the imaging test of choice for renal evaluation, because it provides information about the position, size, shape, internal architecture and hemodynamics of the kidneys without harming the patient. In chronic kidney disease, the main findings observed in B-mode ultrasound images are increased cortical echogenicity, loss of corticomedullary differentiation, reduced renal volume and irregular renal contour, and when these changes are associated, they are indicative of end-stage renal disease. However, the cause of kidney disease cannot be determined by ultrasonography, but must be confirmed by means of biopsy, although the presence of ultrasonographic changes indicative of the end-stage of the disease may contraindicate this procedure...
June 21, 2017: Veterinary Research Communications
https://www.readbyqxmd.com/read/28633959/characterization-of-the-superior-olivary-complex-of-canis-lupus-domesticus
#7
Tatiana Fech, Lilian Calderón-Garcidueñas, Randy J Kulesza
The superior olivary complex (SOC) is a collection of brainstem auditory nuclei which play essential roles in the localization of sound sources, temporal coding of vocalizations and descending modulation of the cochlea. Notwithstanding, the SOC nuclei vary considerably between species in accordance with the auditory needs of the animal. The canine SOC was subjected to anatomical and physiological examination nearly 50 years ago and was then virtually forgotten. Herein, we aimed to characterize the nuclei of the canine SOC using quantitative morphometrics, estimation of neuronal number, histochemistry for perineuronal nets and immunofluorescence for the calcium binding proteins calbindin and calretinin...
June 15, 2017: Hearing Research
https://www.readbyqxmd.com/read/28633674/primary-tumor-volume-delineation-in-head-and-neck-cancer-missing-the-tip-of-the-iceberg
#8
Olgun Elicin, Dario Terribilini, Mohamed Shelan, Werner Volken, Etienne Mathier, Alan Dal Pra, Daniel M Aebersold, Michael K Fix, Peter Manser
BACKGROUND: The aim was to evaluate the geometric and corresponding dosimetric differences between two delineation strategies for head and neck tumors neighboring air cavities. METHODS: Primary gross and clinical tumor volumes (GTV and CTV) of 14 patients with oropharynx or larynx tumors were contoured using a soft tissue window (S). In a second strategy, the same volumes were contoured with an extension to include the parts which became visible on lung window (L)...
June 20, 2017: Radiation Oncology
https://www.readbyqxmd.com/read/28632640/response-to-facial-contouring-by-targeted-restoration-of-facial-fat-compartment-volume-the-midface
#9
Wang Wenjin, Xie Yun, Huang Ru-Lin, Zhou Jia, Tanja Herrler, Zhao Peijuan, Cheng Chen, Zhou Sizheng, Lee L Q Pu, Li Qingfeng
No abstract text is available yet for this article.
June 15, 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28631106/transthoracic-3d-echocardiographic-left-heart-chamber-quantification-in-patients-with-bicuspid-aortic-valve-disease
#10
Allard T van den Hoven, Jackie S Mc-Ghie, Raluca G Chelu, Anthonie L Duijnhouwer, Vivan J M Baggen, Adriaan Coenen, Wim B Vletter, Marcel L Dijkshoorn, Annemien E van den Bosch, Jolien W Roos-Hesselink
Integration of volumetric heart chamber quantification by 3D echocardiography into clinical practice has been hampered by several factors which a new fully automated algorithm (Left Heart Model, (LHM)) may help overcome. This study therefore aims to evaluate the feasibility and accuracy of the LHM software in quantifying left atrial and left ventricular volumes and left ventricular ejection fraction in a cohort of patients with a bicuspid aortic valve. Patients with a bicuspid aortic valve were prospectively included...
June 19, 2017: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/28629955/correlation-study-between-dki-and-conventional-dwi-in-brain-and-head-and-neck-tumors
#11
Silvia Minosse, Simona Marzi, Francesca Piludu, Antonello Vidiri
PURPOSE: To investigate the relationship between the Diffusion Kurtosis Imaging (DKI) parameters and conventional metrics provided by Diffusion-weighted imaging (DWI) in patients affected by Brain or Head and Neck (HN) cancer. METHODS: Ten patients affected by brain tumor and nine patients with HN tumor underwent a pre-treatment MR examination at 3 T. The largest tumor section was manually contoured by two expert neuroradiologists. The apparent diffusion coefficient (Dapp) and apparent diffusional kurtosis (Kapp) parameters were determined at the voxel level by using the DKI model, and compared to the apparent diffusion coefficient (ADC) and the tissue diffusion coefficient (Dmono) obtained from mono-exponential fitting methods...
June 16, 2017: Magnetic Resonance Imaging
https://www.readbyqxmd.com/read/28629258/implementation-and-preliminary-evaluation-of-c-tone-a-novel-algorithm-to-improve-lexical-tone-recognition-in-mandarin-speaking-cochlear-implant-users
#12
Lichuan Ping, Ningyuan Wang, Guofang Tang, Thomas Lu, Li Yin, Wenhe Tu, Qian-Jie Fu
OBJECTIVES: Because of limited spectral resolution, Mandarin-speaking cochlear implant (CI) users have difficulty perceiving fundamental frequency (F0) cues that are important to lexical tone recognition. To improve Mandarin tone recognition in CI users, we implemented and evaluated a novel real-time algorithm (C-tone) to enhance the amplitude contour, which is strongly correlated with the F0 contour. METHODS: The C-tone algorithm was implemented in clinical processors and evaluated in eight users of the Nurotron NSP-60 CI system...
June 20, 2017: Cochlear Implants International
https://www.readbyqxmd.com/read/28629184/determination-of-structural-requirements-of-n-substituted-tetrahydro-%C3%AE-carboline-imidazolium-salt-derivatives-using-in-silico-approaches-for-designing-mek-1-inhibitors
#13
Jingwei Liang, Mingyang Wang, Xinyang Li, Xin He, Chong Cao, Fanhao Meng
Novel N-substituted tetrahydro-β-carboline imidazolium salt derivatives proved to have potent antitumor activity in past research. The Topomer CoMFA and CoMSIA function in Sybyl-X 2.0 software was applied for the identification of important features of N-substituted tetrahydro-β-carboline-imidazolium salt derivative moieties. In the case of Topomer CoMFA, all the compounds were split into two fragments which were used to generate a 3D invariant representation, the statistical results of the Topomer CoMFA model: q² value of 0...
June 19, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28629025/polycaprolactone-and-polycaprolactone-ceramic-based-3d-bioplotted-porous-scaffolds-for-bone-regeneration-a-comparative-study
#14
K K Gómez-Lizárraga, C Flores-Morales, M L Del Prado-Audelo, M A Álvarez-Pérez, M C Piña-Barba, C Escobedo
One of the critical challenges that scaffolding faces in the organ and tissue regeneration field lies in mimicking the structure, and the chemical and biological properties of natural tissue. A high-level control over the architecture, mechanical properties and composition of the materials in contact with cells is essential to overcome such challenge. Therefore, definition of the method, materials and parameters for the production of scaffolds during the fabrication stage is critical. With the recent emergence of rapid prototyping (RP), it is now possible to create three-dimensional (3D) scaffolds with the essential characteristics for the proliferation and regeneration of tissues, such as porosity, mechanical strength, pore size and pore interconnectivity, and biocompatibility...
October 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28628774/a-segmentation-method-for-myocardial-ischemia-infarction-applicable-in-heart-photos
#15
Salety Ferreira Baracho, Daniel José Lins Leal Pinheiro, Carlos Marcelo Gurjão de Godoy, Regina Célia Coelho
The myocardial infarction, known as heart attack, is the ultimate result of a prolonged/untreated cardiac ischemia. The accurate segmentation of the myocardial infarction or ischemia in images obtained from diversified sources, such as Magnetic Resonance Images or Echocardiograph, is worthwhile for the medical area or the animal experimentation. An alternative image source for ischemia/infarction segmentation is the photo, which can depict the actual heart image. This work presents a method for ischemia segmentation in rat heart photos...
June 7, 2017: Computers in Biology and Medicine
https://www.readbyqxmd.com/read/28628686/off-face-usage-of-poly-l-lactic-acid-for-body-rejuvenation
#16
Ahmad Jabbar, Suleima Arruda, Neil Sadick
<p>Injectable soft-tissue augmentation agents have become popular alternatives to surgical procedures for the aging face and body. In contrast to temporary, space-occupying replacement fillers such as collagen-based and hyaluronic acid products, poly-l-lactic acid (PLLA) has been demonstrated to gradually promotes deposition of collagen via a biostimulatory response, with therapeutic effects lasting approximately two years. In 2004, the FDA approved its use for rejuvenation of facial contours secondary to lipoatrophy associated with antiretroviral therapy for HIV infection...
May 1, 2017: Journal of Drugs in Dermatology: JDD
https://www.readbyqxmd.com/read/28628684/megasessions-efficacy-of-fewer-longer-treatment-sessions-for-fat-reduction-in-noninvasive-body-contouring-using-a-radiofrequency-based-device
#17
Diane Duncan
<p>While the field of noninvasive body contouring is booming, many patients still note a lesser result than they might achieve with a single session of liposuction or dermolipectomy. The duration of a noninvasive fat reduction treatment series can be daunting. Patients have questioned the worth of these procedures when the expected benefit is modest and the time they devote to the project is significant. An eight-patient mini-study was performed to see if two or three "megasessions" could be substituted for eight weekly sessions of bipolar radiofrequency based fat reduction treatments...
May 1, 2017: Journal of Drugs in Dermatology: JDD
https://www.readbyqxmd.com/read/28628381/monoclonal-immunoglobulin-associated-proliferative-glomerulonephritis-characterized-by-organized-deposits-of-striated-ultra-substructures-a-case-report
#18
Shigeo Hara, Hiroyasu Tsukaguchi, Tastufumi Oka, Makiko Kusabe, Masayuki Mizui, Kensuke Joh
We herein report the case of a 64-year-old male who presented with progressive glomerulonephritis notable for organized and striated ultra-substructures. The patient was diagnosed with hypertension and proteinuria 3 years prior to admission and subsequently developed nephrotic syndrome and impairment of renal function. Laboratory tests did not reveal any evidence of infections or autoimmune diseases. Monoclonal gammopathy was not detected in serum or urine, although a small population of abnormal plasma cell clones was detected by flow cytometry...
June 19, 2017: Ultrastructural Pathology
https://www.readbyqxmd.com/read/28627007/optical-molecular-imaging-guided-radiation-therapy-part-1-integrated-x-ray-and-bioluminescence-tomography
#19
Junwei Shi, Thirupandiyur S Udayakumar, Zhiqun Wang, Nesrin Dogan, Alan Pollack, Yidong Yang
PURPOSE: X-ray CT faces challenges in differentiating tumors from surrounding healthy tissues. A bioluminescence tomography (BLT) system which can directly reconstruct the internal luminescent tumors, was developed and integrated with CT system to accurately guide radiation dose delivery. METHODS: The BLT system, employing a lens-coupled CCD camera, was physically registered with an onboard cone beam CT system in an image guided small animal arc radiation treatment system (iSMAART)...
June 19, 2017: Medical Physics
https://www.readbyqxmd.com/read/28626876/optical-molecular-imaging-guided-radiation-therapy-part-2-integrated-x-ray-and-fluorescence-molecular-tomography
#20
Junwei Shi, Thirupandiyur S Udayakumar, Zhiqun Wang, Nesrin Dogan, Alan Pollack, Yidong Yang
PURPOSE: Differentiating tumor from its surrounding soft tissues is challenging for x-ray computed tomography (CT). Fluorescence molecular tomography (FMT) can directly localize the internal tumors targeted with specific fluorescent probes. A FMT system was developed and integrated onto a CT guided irradiator to improve tumor localization for image guided radiation. METHODS: The FMT system was aligned orthogonal to the cone beam CT onboard our previously developed image guided small animal arc radiation treatment system (iSMAART)...
June 19, 2017: Medical Physics
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