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Texture analysis

H Kuno, M M Qureshi, M N Chapman, B Li, V C Andreu-Arasa, K Onoue, M T Truong, O Sakai
BACKGROUND AND PURPOSE: The accurate prediction of prognosis and failure is crucial for optimizing treatment strategies for patients with cancer. The purpose of this study was to assess the performance of pretreatment CT texture analysis for the prediction of treatment failure in primary head and neck squamous cell carcinoma treated with chemoradiotherapy. MATERIALS AND METHODS: This retrospective study included 62 patients diagnosed with primary head and neck squamous cell carcinoma who underwent contrast-enhanced CT examinations for staging, followed by chemoradiotherapy...
October 12, 2017: AJNR. American Journal of Neuroradiology
Virginia Byers Kraus, Jamie E Collins, H Cecil Charles, Carl F Pieper, Lawrence Whitley, Elena Losina, Michael Nevitt, Steve Hoffmann, Frank Roemer, Ali Guermazi, David J Hunter
OBJECTIVE: To evaluate radiographic subchondral trabecular bone texture (TBT) as a predictor of clinically relevant osteoarthritis (OA) progression (combination of symptom and structure worsening). METHODS: The FNIH OA Biomarkers Consortium undertook a study of progressive knee OA cases (n=194 knees with both radiographic and pain progression over 24-48 months) and comparators (n=406 OA knees not meeting the case definition). TBT parameters were extracted from a medial subchondral tibial region of interest by fractal signature analysis of radiographs using a validated semi-automated software...
October 12, 2017: Arthritis & Rheumatology
Rumiyati, Sismindari, Endang Semiarti, Asri Fajar Milasari, Dheatika Karina Sari, Nia Fitriana, Sekar Galuh
BACKGROUND AND OBJECTIVE: Dragon fruit (Hylocereus spp.), apple (Malus sylvestris Mill.) and tomato (Solanum lycopersicum L.) are high potential sources of antioxidant compounds such as phenolics. The compounds have the capability of protecting cells and tissues against free radicals. Secondary metabolite produced by callus cell culture from plant organs also acts as a source of antioxidants. This study aimed to determine the optimal ratio of sucrose and 2,4-D in Murashige and Skoog (MS) medium for callus induction from different plant organ explants...
2017: Pakistan Journal of Biological Sciences: PJBS
Mengli Zhang, Xiangdong Gong, Tong Lin, Qiuju Wu, Yiping Ge, Yuqing Huang, LiYu Ge
BACKGROUND AND OBJECTIVE: Q-switched (QS) lasers are the gold standard for tattoo removal. The purpose of the present study was to gain a more comprehensive understanding of the factors that influence the efficacy of QS lasers and their associated complications in the removal of tattoos in China. PATIENTS AND METHODS: Clinical data of 266 patients were analyzed retrospectively. The tattoo clearance rate was evaluated using the 4-point scale. The Cox regression model was applied to analyze the factors that affected the efficacy of QS lasers in tattoo removal...
October 11, 2017: Journal of Cosmetic and Laser Therapy: Official Publication of the European Society for Laser Dermatology
Giovanni Montesano, Davide Allegrini, Leonardo Colombo, Luca M Rossetti, Alfredo Pece
The main objective of our work is to perform an in depth analysis of the structural features of normal choriocapillaris imaged with OCT Angiography. Specifically, we provide an optimal radius for a circular Region of Interest (ROI) to obtain a stable estimate of the subfoveal choriocapillaris density and characterize its textural properties using Markov Random Fields. On each binarized image of the choriocapillaris OCT Angiography we performed simulated measurements of the subfoveal choriocapillaris densities with circular Regions of Interest (ROIs) of different radii and with small random displacements from the center of the Foveal Avascular Zone (FAZ)...
2017: PloS One
Stephanie Luzia da Costa Pedretti, Cícero de Lima Rena, Maria Christina Marques Nogueira Castãnon, Ana Paula do Nascimento Duque, Fernando Henrique Pereira, Tarcizo Afonso Nunes
OBJECTIVES: to verify the influence of dimethylsulfoxide and pentoxifylline on the vitality of cutaneous flaps in rats and the tissue repair process. METHODS: were studied 30 Wistar rats, submitting them to a 2cm wide by 8cm long dorsal cutaneous flap, of caudal base. We distributed the animals in three groups: Control Group (n=10) with application gauze moistened with 0.9% Saline in the flap bed for 30 seconds; Dimethylsulfoxide group (n=10), with administration of 1ml of 5% dimethylsulfoxide divided into five injections of 0...
September 2017: Revista do Colégio Brasileiro de Cirurgiões
Sophie Chopinet, David Fuks, Mathieu Rinaudo, Julien Massol, Emilie Gregoire, Christian Lamer, Ajay Belgaumkar, Jean Hardwigsen, Yves-Patrice Le Treut, Brice Gayet
BACKGROUND: Laparoscopic pancreaticoduodenectomy (LPD) is technically demanding, and its impact on postoperative outcomes remains controversial. OBJECTIVE: To compare short-term outcomes between laparoscopic versus open pancreaticoduodenectomy (OPD) in order to assess the safety of LPD. METHODS: From 2002 to 2014, all consecutive patients undergoing LPD or OPD at two tertiary centers were retrospectively analyzed. Patients were matched for demographics, comorbidities, pathological diagnosis, and pancreatic texture...
October 10, 2017: World Journal of Surgery
Claudia Symmank, Susann Zahn, Harald Rohm
One reason for the significant amount of food that is wasted in developed countries is that consumers often expect visually suboptimal food as being less palatable. Using bananas as example, the objective of this study was to determine how appearance affects consumer overall liking, the rating of sensory attributes, purchase intention, and the intended use of bananas. The ripeness degree (RD) of the samples was adjusted to RD 5 (control) and RD 7 (more ripened, visually suboptimal). After preliminary experiments, a total of 233 participants were asked to judge their satisfaction with the intensity of sensory attributes that referred to flavor, taste, and texture using just-about-right scales...
October 7, 2017: Appetite
Yanjun Zhang, Meijie Hu, Kexue Zhu, Gang Wu, Lehe Tan
Jackfruit is now receiving extensive attention as a new source of starch. However, jackfruit seeds are discarded as waste, although they are rich in starch. The functional properties of the starches were investigated from new Chinese jackfruit species. All the starches have a high amylose (26.56-38.34%) with a potential to become functional foods rich in resistant starch. The jackfruit starches varied from trigonal and tetragonal, round to semi-oval/bell shapes and showed significant variations in particle sizes (5...
October 7, 2017: International Journal of Biological Macromolecules
Timothy Rossman, Susheil Uthamaraj, Asghar Rezaei, Sean McEligot, Hugo Giambini, Iwona Jasiuk, Michael J Yaszemski, Lichun Lu, Dan Dragomir-Daescu
This protocol describes the method using digital image correlation to estimate cortical strain from high speed video images of the cadaveric femoral surface obtained from mechanical testing. This optical method requires a texture of many contrasting fiduciary marks on a solid white background for accurate tracking of surface deformation as loading is applied to the specimen. Immediately prior to testing, the surface of interest in the camera view is painted with a water-based white primer and allowed to dry for several minutes...
September 14, 2017: Journal of Visualized Experiments: JoVE
Alice M Percher, Gildas Merceron, Gontran Nsi Akoue, Jordi Galbany, Alejandro Romero, Marie Je Charpentier
OBJECTIVES: Dental microwear is a promising tool to reconstruct animals' diet because it reflects the interplay between the enamel surface and the food items recently consumed. This study examines the sources of inter-individual variations in dietary habits in a free-ranging population of mandrills (Mandrillus sphinx) using a combination of feeding monitoring and in vivo dental microwear textural analysis (DMTA). METHODS: We investigated the impact of seasonality and individual traits on four DMTA parameters...
October 9, 2017: American Journal of Physical Anthropology
O B A Agbaje, R Wirth, L F G Morales, K Shirai, M Kosnik, T Watanabe, D E Jacob
Tridacna derasa shells show a crossed lamellar microstructure consisting of three hierarchical lamellar structural orders. The mineral part is intimately intergrown with 0.9 wt% organics, namely polysaccharides, glycosylated and unglycosylated proteins and lipids, identified by Fourier transform infrared spectrometry. Transmission electron microscopy shows nanometre-sized grains with irregular grain boundaries and abundant voids. Twinning is observed across all spatial scales and results in a spread of the crystal orientation angles...
September 2017: Royal Society Open Science
Khalid H Al-Samadani
BACKGROUND AND OBJECTIVE: The objective of the study was to find whether energy beverages have an erosive effect, leading to a risk in the clinical performance of glass ionomer restorative materials. AIM: This study evaluated the influence of energy beverages on the surface texture of glass ionomer restorative materials. MATERIALS AND METHODS: Glass ionomer materials used were Ionofil Plus AC, GC EQUIA, and Ketac Molar; energy beverages are Code Red, Red Bull, and Power Horse...
October 1, 2017: Journal of Contemporary Dental Practice
Hans-Jonas Meyer, Stefan Schob, Anne Kathrin Höhn, Alexey Surov
OBJECT: Thyroid cancer represents the most frequent malignancy of the endocrine system with an increasing incidence worldwide. Novel imaging techniques are able to further characterize tumors and even predict histopathology features. Texture analysis is an emergent imaging technique to extract extensive data from an radiology images. The present study was therefore conducted to identify possible associations between texture analysis and histopathology parameters in thyroid cancer. METHODS: The radiological database was retrospectively reviewed for thyroid carcinoma...
October 5, 2017: Translational Oncology
Hao-Chung Chia, Hwo-Shuenn Sheu, Yu-Yun Hsiao, Shao-Sian Li, Yi-Kang Lan, Chung-Yao Lin, Je-Wei Chang, Yen-Chien Kuo, Chia-Hao Chen, Shih-Chang Weng, Chun-Jen Su, An-Chung Su, Chun-Wei Chen, U-Ser Jeng
We have identified an often observed yet unresolved intermediate structure in a popular processing with dimethylformamide solutions of lead chloride and methylammonium iodide for perovskite solar cells. With sub-second time-resolved grazing-incidence X-ray scattering (GIXS) and X-ray photoemission spectroscopy, supplemental with ab initio calculation, the resolved intermediate structure (CH3NH3)2PbI2Cl2 CH3NH3I features in 2D perovskite bilayers of zigzagged lead-halide octahedra and sandwiched CH3NH3I layers...
October 6, 2017: ACS Applied Materials & Interfaces
Foucauld Chamming's, Yoshiko Ueno, Romuald Ferré, Ellen Kao, Anne-Sophie Jannot, Jaron Chong, Atilla Omeroglu, Benoît Mesurolle, Caroline Reinhold, Benoit Gallix
Purpose To evaluate whether features from texture analysis of breast cancers were associated with pathologic complete response (pCR) after neoadjuvant chemotherapy and to explore the association between texture features and tumor subtypes at pretreatment magnetic resonance (MR) imaging. Materials and Methods Institutional review board approval was obtained. This retrospective study included 85 patients with 85 breast cancers who underwent breast MR imaging before neoadjuvant chemotherapy between April 10, 2008, and March 12, 2015...
October 4, 2017: Radiology
Shigeru Kiryu, Hiroyuki Akai, Masanori Nojima, Kiyoshi Hasegawa, Hiroji Shinkawa, Norihiro Kokudo, Koichiro Yasaka, Kuni Ohtomo
We assessed the relationship between the heterogeneity of HCC on preoperative non-contrast-enhanced CT and patient prognosis. The heterogeneity of CT images from 122 patients was assessed and texture feature parameters such as mean, standard deviation (SD), entropy, mean of the positive pixels (MPP), skewness, and kurtosis were obtained using filtration. The relationship between CT texture features and 5-year overall survival (OS) or disease-free survival (DFS) was assessed. Multivariate regression analysis was performed to evaluate the independence of texture feature from clinical or pathological parameters...
October 4, 2017: Scientific Reports
Emi Watanabe, Masami Maeno, Jun Kayashita, Ken-Ichi Miyamoto, Miho Kogirima
Undernutrition caused by difficulties in masticating is of growing concern among the elderly. Soft diets are often served at nursing homes; however, the styles differ with nursing homes. Improperly modified food texture and consistency may lead to further loss of nutritive value. Therefore, we developed a method to produce a soft diet using chicken. The texture-modified chicken was prepared by boiling a mixture of minced chicken and additive foodstuff that softened the meat. The best food additive was determined through testing cooking process, size after modification and texture...
2017: Journal of Nutritional Science and Vitaminology
Shuo Jin, Xiao-Ju Shi, Si-Yuan Wang, Ping Zhang, Guo-Yue Lv, Xiao-Hong Du, Guang-Yi Wang
AIM: To investigate potential biomarkers for predicting postoperative pancreatic fistula (POPF) after pancreaticoduodenectomy (PD). METHODS: We prospectively recruited 83 patients to this study. All patients underwent PD (Child's procedure) at the Division of Hepatobiliary and Pancreas Surgery at the First Bethune Hospital of Jilin University between June 2011 and April 2015. Data pertaining to demographic variables, clinical characteristics, texture of pancreas, surgical approach, histopathological results, white blood cell count, amylase and choline levels in the serum, pancreatic/gastric drainage fluid, and choline and amylase levels in abdominal drainage fluid were included in the analysis...
September 14, 2017: World Journal of Gastroenterology: WJG
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