Results 191 to 200 of about 745 (237)

Color based segmentation in monocular system for prosthesis pose estimation during total hip replacement surgery

2016 IEEE Biomedical Circuits and Systems Conference (BioCAS), 2016
Safe-zone in total hip replacements (THR) means that the acetabular cup is placed within 30 to 50° of abduction and 5 to 25° of anteversion. To help surgeons with prosthesis placement into the safe zone and real-time prosthesis pose estimation, a femoral head prosthesis with a camera mounted inside is designed.
Shaojie Su, Guangli Jiang, Hong Chen, Zhihua Wang   +3 more
openaire   +1 more source

[A primary study of color tolerance of anterior tooth crown prosthesis].

Hua xi kou qiang yi xue za zhi = Huaxi kouqiang yixue zazhi = West China journal of stomatology, 2015
To study the color tolerance of anterior ceramic crown and seek an effective approach for color-matching of oral prostheses.30 single maxillary incisor ceramic prostheses and the corresponding nature teeth were measured by a digital camera in a steady environment for image taking and color measurement, which based on the standard recommended by CIE ...
Qi-min, Ge, Fu-qiang, Zhang
openaire   +1 more source

[Effects of cleaners on the color stability of prosthesis silicone rubbers].

Zhonghua kou qiang yi xue za zhi = Zhonghua kouqiang yixue zazhi = Chinese journal of stomatology, 2014
To evaluate the effect of different cleaners on the color stability of two silicone rubbers used for maxillofacial prosthesis, and to provide recommendations for clinical use.Thirty skin-color columniform specimens (12 mm diameter, 10 mm height) of two silicone rubber (A:A-2000; Z:ZY-1) were prepared, randomly divided into 6 groups according to the ...
Zhe-wu, Xu, Jie, Jiang, Xian-xian, Zhang, Guo-bin, Liang, Yan, Li   +4 more
openaire   +1 more source

Color stability of the artificial iris button in an ocular prosthesis before and after acrylic resin polymerization

Contact Lens and Anterior Eye, 2015
This study investigated the effects of the ocular prosthesis fabrication technique and the paint on the color stability of the artificial iris button before and after polymerization of the colorless resin. Sixty samples simulating artificial eyes were made, including 30 samples with blue- and 30 samples with sepia-colored artificial irises. Ten samples
Amália Moreno, Marcelo Coelho Goiato, Kamila Freitas Oliveira, Mariana Garib Iyda, Marcela Filié Haddad, Stefan Fiuza de Carvalho Dekon, Daniela Micheline dos Santos   +6 more
openaire   +3 more sources

Value of Color Doppler Three-Dimensional Transesophageal Echocardiography in the Percutaneous Closure of Mitral Prosthesis Paravalvular Leak

The American Journal of Cardiology, 2010
We investigated the clinical value of three-dimensional (3D) transesophageal echocardiography (TEE) color flow Doppler (TEE-CFD) for percutaneous transcatheter closure of mitral valve prosthesis paravalvular leaks (PVLs) compared to two-dimensional (2D) TEE.
Simon, Biner, Saibal, Kar, Robert J, Siegel, Asim, Rafique, Takahiro, Shiota   +4 more
openaire   +2 more sources

[A study of color matching of maxillofacial prosthesis]

Shanghai kou qiang yi xue = Shanghai journal of stomatology
OBJECTIVE:The color difference between the patient's facial prosthesis and the surrounding skin have long puzzled both of dentist and patient.The purpose of the study was to introduce spectrophotometer into the color matching and set up a set of equations to increase the accuracy of the color matching,Referring to increase the accuracy of the color ...
H F, Zhou, W, Yu, C Y, Yang
openaire   +1 more source

Color Change of The Iris During Ocular Prosthesis Fabrication and After Accelerated Aging

Natural and Life Sciences Communications
This study aims to investigate the color change of the brown iris of the three-layer acrylic resin ocular prosthesis during the fabrication process and after accelerated aging. Four groups of ocular specimens were created using combinations of heat-cured (H) and chemical-cured (C) acrylic resin: HHH, HCH, CCH, and CCC (n=10 each).
Lapon Mutthapong, Panarat Kodkeaw
openaire   +1 more source

[Transesophageal color-coded Doppler echocardiography: diagnosis of regurgitation of mitral valve prosthesis].

Cardiologia (Rome, Italy), 1989
In patients with mechanical mitral prosthesis, the presence of dysfunction and regurgitation of the prosthesis may be difficult to assess by standard precordial color flow Doppler. Moreover, the kind of mitral prosthesis regurgitant jet is often impossible to determine.
G A, Barletta, F, Mori, G, De Saint-Pierre, A, Palminiello   +3 more
openaire   +1 more source

[Thrombosis on a mitral valve prosthesis: treatment with urokinase and color-Doppler monitoring].

Cardiologia (Rome, Italy), 1991
A case of thrombolytic treatment with urokinase on a Sorin mitral prosthesis is described. Thrombolytic therapy, that is an alternative to valvular replacement was effective. Color-Doppler showed as a reliable method to monitor therapy effectiveness. However, a serious complication was cerebral embolism.
G, Mobilia, I, Maragno, L, Cacciavillani, R, Scognamiglio, G, Fasoli, F, Maddalena   +5 more
openaire   +1 more source

Comparative analysis of smartphone colorimeter apps and spectrophotometry for measuring forehead skin color in maxillofacial prosthesis fabrication

Journal of Prosthodontics
AbstractPurposeThis study aimed to evaluate the accuracy and precision of two smartphone colorimeter apps, Color Grab, and Color Picker, in measuring forehead skin color and to compare their readings with those from a spectrophotometer.Materials and MethodsFifty participants (26 males, 24 females; median age 23 years, range 21–45) were included.
Somayeh Niakan, Mahdi Safi, Shima Younespour, Shayan Khoshtarkib   +3 more
openaire   +2 more sources