keyword
MENU ▼
Read by QxMD icon Read
search

3d photography

keyword
https://www.readbyqxmd.com/read/28432681/retrospective-single-center-study-of-the-efficacy-of-large-spot-532%C3%A2-nm-laser-for-the-treatment-of-facial-capillary-malformations-in-44-patients-with-the-use-of-three-dimensional-image-analysis
#1
Bartłomiej Kwiek, Michał Rożalski, Cezary Kowalewski, Marcin Ambroziak
OBJECTIVE: We wanted to asses the efficacy of large spot 532 nm laser for the treatment of facial capillary malformations with the use of three-dimensional (3D) image analysis. STUDY DESIGN AND METHODS: Retrospective single center study on previously non-treated patients with facial capillary malformations (CM) was performed. A total of 44 consecutive Caucasian patients aged 5-66 were included. Patients had 3D photography performed before and after and had at least one single session of treatment with 532 nm neodymium-doped yttrium aluminum garnet (Nd:YAG) laser with contact cooling, fluencies ranging from 8 to 11...
April 22, 2017: Lasers in Surgery and Medicine
https://www.readbyqxmd.com/read/28350816/multi-channel-mri-segmentation-of-eye-structures-and-tumors-using-patient-specific-features
#2
Carlos Ciller, Sandro De Zanet, Konstantinos Kamnitsas, Philippe Maeder, Ben Glocker, Francis L Munier, Daniel Rueckert, Jean-Philippe Thiran, Meritxell Bach Cuadra, Raphael Sznitman
Retinoblastoma and uveal melanoma are fast spreading eye tumors usually diagnosed by using 2D Fundus Image Photography (Fundus) and 2D Ultrasound (US). Diagnosis and treatment planning of such diseases often require additional complementary imaging to confirm the tumor extend via 3D Magnetic Resonance Imaging (MRI). In this context, having automatic segmentations to estimate the size and the distribution of the pathological tissue would be advantageous towards tumor characterization. Until now, the alternative has been the manual delineation of eye structures, a rather time consuming and error-prone task, to be conducted in multiple MRI sequences simultaneously...
2017: PloS One
https://www.readbyqxmd.com/read/28344899/a-multidisciplinary-approach-to-digital-mapping-of-dinosaurian-tracksites-in-the-lower-cretaceous-valanginian-barremian-broome-sandstone-of-the-dampier-peninsula-western-australia
#3
Anthony Romilio, Jorg M Hacker, Robert Zlot, George Poropat, Michael Bosse, Steven W Salisbury
The abundant dinosaurian tracksites of the Lower Cretaceous (Valanginian-Barremian) Broome Sandstone of the Dampier Peninsula, Western Australia, form an important part of the West Kimberley National Heritage Place. Previous attempts to document these tracksites using traditional mapping techniques (e.g., surface overlays, transects and gridlines combined with conventional photography) have been hindered by the non-trivial challenges associated with working in this area, including, but not limited to: (1) the remoteness of many of the tracksites; (2) the occurrence of the majority of the tracksites in the intertidal zone; (3) the size and complexity of many of the tracksites, with some extending over several square kilometres...
2017: PeerJ
https://www.readbyqxmd.com/read/28300713/low-cost-smartphone-based-photogrammetry-for-the-analysis-of-cranial-deformation-in-infants
#4
Inés Barbero-García, José Luis Lerma, Ángel Marqués-Mateu, Pablo Miranda
BACKGROUND: Cranial deformation, including deformational plagiocephaly, brachycephaly and craniosynostosis, is a condition that affects a large number of infants. Despite of its prevalence there are no standards for the systematic evaluation of the cranial deformation. Usually, the deformation is manually measured using callipers. However, experts do not agree on the suitability of these measurements to correctly represent the deformation. Other methodologies for evaluation include 3D photography and radiologic scanners...
March 11, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28299700/dynamic-antibiotic-susceptibility-test-via-a-3d-microfluidic-culture-device
#5
Zining Hou, Yu An, Zhigang Wu
This study presents a novel microfluidic approach to the investigation of bacterial susceptibility against antibiotics gradient concentration in a quantitative way. A linear concentration gradient of antibiotics in a microfluidic chamber is used with time-lapse photography. This approach provides high-resolution information in real time. Traditional tests for this type of study involve Clinical and Laboratory Standard Institute (CLSI) recommended test and Etest. All of these tests need different trials to present different concentrations...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28286520/acetylcholinesterase-inhibitors-assay-using-colorimetric-ph-sensitive-strips-and-image-analysis-by-a-smartphone
#6
Adam Kostelnik, Alexander Cegan, Miroslav Pohanka
Smartphones are widely spread and their usage does not require any trained personnel. Recently, smartphones were successfully used in analytical chemistry as a simple detection tool in some applications. This paper focuses on immobilization of acetylcholinesterase (AChE) onto commercially available pH strips with stabilization in the gelatin membrane. AChE degrades acetylcholine into choline and acetic acid which causes color change of acid-base indicator. Smartphone served as a tool for measurement of indicator color change from red to orange while inhibitors blocked this process...
2017: International Journal of Analytical Chemistry
https://www.readbyqxmd.com/read/28241560/measurement-of-static-convergence-and-accommodation-responses-to-images-of-integral-photography-and-binocular-stereoscopy
#7
Hitoshi Hiura, Kazuteru Komine, Jun Arai, Tomoyuki Mishina
Static convergence and accommodation responses were measured by comparing integral photography images, binocular stereoscopic images, and real objects in a measurement range from 450 to 900 mm. The experimental results were evaluated with a multiple comparison test. It was found that six of the ten observers did not have an accommodation-convergence conflict in viewing integral photography in the range. Moreover, the required resolution was found to be 0.7 or more and less than 1.4 cycles per degree for inducing accommodation...
February 20, 2017: Optics Express
https://www.readbyqxmd.com/read/28237427/three-dimensional-eye-shape-myopic-maculopathy-and-visual-acuity-the-zhongshan-ophthalmic-center-brien-holden-vision-institute-high-myopia-cohort-study
#8
Xinxing Guo, Ou Xiao, Yanxian Chen, Huawang Wu, Linxing Chen, Ian G Morgan, Mingguang He
PURPOSE: To investigate the relationship among eye shape, myopic maculopathy, and visual acuity in highly myopic eyes using 3-dimensional (3D) magnetic resonance imaging (MRI). DESIGN: Observational case series. PARTICIPANTS: The study included 190 eyes of 95 participants with bilateral high myopia from the Zhongshan Ophthalmic Center-Brien Holden Vision Institute High Myopia Cohort Study, with spherical power ≤-6.00 diopters (D) in both eyes...
February 22, 2017: Ophthalmology
https://www.readbyqxmd.com/read/28203510/midface-osteotomies-for-feminization-of-the-facial-skeleton
#9
T Kalle Lundgren, Filip Farnebo
Facial feminization surgery is a term to describe the surgical alteration of a masculine facial appearance to a more feminine appearance, which is most commonly performed for male-to-female transsexual individuals. To alter the midfacial relations, segmentalized osteotomies were performed in selected patients expanding on the established techniques for facial feminization surgery. All patients underwent a preoperative 3D computerized tomography scan and 3D photography before and after the surgery. The inclusion of the midface in surgery was determined based on the relative projection and angle of the zygomatic body compared with the supraorbital region (the supraorbital region was reduced in all patients)...
January 2017: Plastic and Reconstructive Surgery. Global Open
https://www.readbyqxmd.com/read/28203007/-diagnossis-and-treatment-of-complicated-anterior-teeth-esthetic-defects-by-combination-of-whole-process-digital-esthetic-rehabilitation-with-periodontic-surgery
#10
Z Li, Y S Liu, H Q Ye, Y S Liu, W J Hu, Y S Zhou
OBJECTIVE: To explore a new method of whole-process digital esthetic prosthodontic rehabilitation combined with periodontic surgery for complicated anterior teeth esthetic defects accompanied by soft tissue morphology, to provide an alternative choice for solving this problem under the guidance of three-dimensional (3D) printing digital dental model and surgical guide, thus completing periodontic surgery and digital esthetic rehabilitation of anterior teeth. METHODS: In this study, 12 patients with complicated esthetic problems accompanied by soft tissue morphology in their anterior teeth were included...
February 18, 2017: Beijing da Xue Xue Bao. Yi Xue Ban, Journal of Peking University. Health Sciences
https://www.readbyqxmd.com/read/28011182/dynamic-facial-asymmetry-in-patients-with-repaired-cleft-lip-using-4d-imaging-video-stereophotogrammetry
#11
Rami R Hallac, Jennifer Feng, Alex A Kane, James R Seaward
BACKGROUND: Unilateral cleft lip is a profoundly asymmetrical condition affecting all hard and soft tissue layers from the nose to the upper lip. Although the asymmetry is minimized through cleft lip repair, a degree of asymmetry inevitably persists. Studies investigating asymmetry in patients with cleft lip have used facial measurements, and static 2D and 3D photography. The nose/lip/mouth area, however, is rarely static in our day to day social interactions. METHODS: Non-syndromic patients with cleft lip and palate, and a control group without orofacial clefts underwent 50 frames per second 4D imaging while generating facial expressions including smiling and pouting...
January 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/28005766/three-dimensional-handheld-scanning-to-quantify-head-shape-changes-in-spring-assisted-surgery-for-sagittal-craniosynostosis
#12
Maik Tenhagen, Jan L Bruse, Naiara Rodriguez-Florez, Freida Angullia, Alessandro Borghi, Maarten J Koudstaal, Silvia Schievano, Owase Jeelani, David Dunaway
Three-dimensional (3D) imaging is an important tool for diagnostics, surgical planning, and evaluation of surgical outcomes in craniofacial procedures. Gold standard for acquiring 3D imaging is computed tomography that entails ionizing radiations and, in young children, a general anaesthesia. Three-dimensional photographic imaging is an alternative method to assess patients who have undergone calvarial reconstructive surgery. The aim of this study was to assess the utility of 3D handheld scanning photography in a cohort of patients who underwent spring-assisted correction surgery for scaphocephaly...
November 2016: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/27992234/using-dental-gps-to-navigate-implant-placement
#13
Byran T Harris, William C Scarfe, Daniel R Llop, Wei-Shao Lin
Digital advances have changed implant planning to improve outcomes in placement and restoration. Layering multiple image inputs, such as volumetric radiology, photography, and 3-dimensional (3D) surface scans, has allowed better assessment of patients with partial or complete edentulism, and this can aid in producing 3D visual predictions, implant guides, and prosthetics to execute the proposed plan.
September 2016: Compendium of Continuing Education in Dentistry
https://www.readbyqxmd.com/read/27965978/rebamipide-an-amino-acid-analog-of-2-1h-quinolinone-inhibits-the-formation-of-human-osteoclasts
#14
Yuki Nanke, Tsuyoshi Kobashigawa, Toru Yago, Manabu Kawamoto, Hisashi Yamanaka, Shigeru Kotake
Objectives. Drug repositioning or drug reprofiling (DR) has recently been growing in importance. DR has a significant advantage over traditional drug development because the repositioned drug has already passed toxicity tests; its safety is known, and the risk of adverse toxicology is reduced. In the current study, we investigated the role of rebamipide, a mucosa-protecting agent, with recently reported anti-inflammatory function, in human osteoclastogenesis. Methods. Peripheral blood mononuclear cells (PBMCs) were cultured in the presence of M-CSF and sRANKL...
2016: BioMed Research International
https://www.readbyqxmd.com/read/27965487/accuracy-of-three-shade-matching-devices-in-replicating-the-shade-of-metal-ceramic-restorations-an-in-vitro-study
#15
Shruti Lakhanpal, Menon S Neelima
INTRODUCTION: In restorative dentistry, the clinician commonly encounters the challenge of replicating the color of natural teeth due to the subjectivity of perceptual evaluation. Recent advances in photography and computing have resulted in the widespread use of the digital camera for color imaging. These instruments can be used effectively for shade matching and communication to yield predictable results. MATERIALS AND METHODS: The study sample consisted of 20 freshly extracted noncarious premolars...
December 1, 2016: Journal of Contemporary Dental Practice
https://www.readbyqxmd.com/read/27913880/forensic-3d-documentation-of-skin-injuries
#16
Chiara Villa
An accurate and precise documentation of injuries is fundamental in a forensic pathological context. Photographs and manual measurements are taken of all injuries during autopsies, but ordinary photography projects a 3D wound on a 2D space. Using technologies such as photogrammetry, it is possible to create 3D detailed, to-scale, true-color documentation of skin injuries from 2D pictures. A comparison between the measurements of 165 lesions taken during autopsies and on photogrammetrically processed pictures was performed...
December 2, 2016: International Journal of Legal Medicine
https://www.readbyqxmd.com/read/27906262/light-field-and-holographic-three-dimensional-displays-invited
#17
Masahiro Yamaguchi
A perfect three-dimensional (3D) display that satisfies all depth cues in human vision is possible if a light field can be reproduced exactly as it appeared when it emerged from a real object. The light field can be generated based on either light ray or wavefront reconstruction, with the latter known as holography. This paper first provides an overview of the advances of ray-based and wavefront-based 3D display technologies, including integral photography and holography, and the integration of those technologies with digital information systems...
December 1, 2016: Journal of the Optical Society of America. A, Optics, Image Science, and Vision
https://www.readbyqxmd.com/read/27893632/the-evolution-of-photography-and-three-dimensional-imaging-in-plastic-surgery
#18
Jason M Weissler, Carrie S Stern, Jillian Schreiber, Bardia Amirlak, Oren M Tepper
Throughout history, the technological advancements of conventional clinical photography in plastic surgery have refined not only the plastic surgeon's armamentarium, but have invigorated the profession through technology. The technology of the once traditional two-dimensional photograph has since been revolutionized and refashioned to incorporate novel applications, which have since become the standard in clinical photography.Contrary to traditional standardized two-dimensional photographs, three-dimensional photography provides the surgeon with an invaluable volumetric and morphological analysis by demonstrating true surface dimensions both pre and postoperatively...
November 21, 2016: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/27812721/assessment-of-facial-soft-tissue-profiles-based-on-lateral-photographs-versus-three-dimensional-face-scans
#19
Martin Fink, Ursula Hirschfelder, Veronika Hirschinger, Matthias Schmid, Caroline Spitzl, Andreas Detterbeck, Elisabeth Hofmann
OBJECTIVES: The purpose of this study was to compare two-dimensional (2D) lateral photographs versus three-dimensional (3D) face scans in analyzing facial profiles using Schwarz's concept of the jaw profile field (JPF) in its original 2D and in a modified 3D version. In addition, the distribution of the facial profile types described by Schwarz were examined. MATERIALS AND METHODS: Of 75 adult volunteers recruited specifically for this study, we obtained both photographs (Nikon D 300S; Nikon, Düsseldorf, Germany) and scans (FaceSCAN(3D) Scientific Photolab 60 Hz; 3D-Shape, Erlangen, Germany) in a standardized setting...
January 2017: Journal of Orofacial Orthopedics, Fortschritte der Kieferorthopädie
https://www.readbyqxmd.com/read/27681360/targeting-of-sebaceous-glands-to-treat-acne-by-micro-insulated-needles-with-radio-frequency-in-a-rabbit-ear-model
#20
Tae-Rin Kwon, Eun Ja Choi, Chang Taek Oh, Dong-Ho Bak, Song-I Im, Eun Jung Ko, Hyuck Ki Hong, Yeon Shik Choi, Joon Seok, Sun Young Choi, Gun Young Ahn, Beom Joon Kim
BACKGROUND AND OBJECTIVES: Many studies have investigated the application of micro-insulated needles with radio frequency (RF) to treat acne in humans; however, the use of a micro-insulated needle RF applicator has not yet been studied in an animal model. The purpose of this study was to evaluate the effectiveness of a micro-insulated needle RF applicator in a rabbit ear acne (REA) model. STUDY DESIGN/MATERIALS AND METHODS: In this study, we investigated the effect of selectively destroying the sebaceous glands using a micro-insulated needle RF applicator on the formation of comedones induced by application of 50% oleic acid and intradermal injection of P...
September 29, 2016: Lasers in Surgery and Medicine
keyword
keyword
61383
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"