Influences of target size and contrast on near infrared diffuse optical tomography: a comparison between featured-data and full time-resolved schemes

2006 ◽  
Author(s):  
Feng Gao ◽  
Huijuan Zhao ◽  
Yukari Tanikawa ◽  
Kazuhiro Homma ◽  
Yukio Yamada
Keyword(s):  
Near Infrared ◽  
Optical Tomography ◽  
Diffuse Optical Tomography ◽  
Target Size ◽  
Full Time ◽  
Time Resolved

A self-normalized full time-resolved scheme for fluorescence diffuse optical tomography

2008 ◽  
Author(s):  
Feng Gao ◽  
Limin Zhang ◽  
Huiyuan He ◽  
Huijuan Zhao ◽  
Jingying Jiang ◽  
...  
Keyword(s):  
Optical Tomography ◽  
Diffuse Optical Tomography ◽  
Full Time ◽  
Time Resolved ◽  
Fluorescence Diffuse Optical Tomography

scholarly journals A self-normalized, full time-resolved method for fluorescence diffuse optical tomography

2008 ◽  
Vol 16 (17) ◽  
pp. 13104 ◽  
Author(s):  
Feng Gao ◽  
Huijuan Zhao ◽  
Limin Zhang ◽  
Yukari Tanikawa ◽  
Andhi Marjono ◽  
...  
Keyword(s):  
Optical Tomography ◽  
Diffuse Optical Tomography ◽  
Full Time ◽  
Time Resolved ◽  
Fluorescence Diffuse Optical Tomography

Time-Resolved Diffuse Optical Tomography of Human Forearm Under Exercise

2011 ◽  
Author(s):  
Yasuomi Endo ◽  
Yukari Tanikawa ◽  
Shinpei Okawa ◽  
Kazuto Masamoto ◽  
Hidetaka Okada ◽  
...  
Keyword(s):  
Near Infrared ◽  
Optical Tomography ◽  
Diffuse Optical Tomography ◽  
Biological Tissues ◽  
Magnetic Resonance Images ◽  
Time Resolved ◽  
Tomographic Images ◽  
Infrared Wavelength ◽  
Flexion And Extension ◽  
Absorption Characteristics

Light in the near-infrared wavelength range can penetrate deeping into biological tissues because the absorption by both water and hemoglobin is much smaller than in the other wavelength ranges. Oxygenated and deoxygenated hemoglobins have different light absorption characteristics. Therefore, by obtaining tomographic images of the absorption characteristics, it will be possible to know the hemodynamics inside deep tissues. Thus, the diffuse optical tomography (DOT) is expected as a new modality of biomedical imaging. In this study, we try to obtain DOT images of the forearms by conducting two types of exercise, and their differences caused by the muscle activity are discussed. By comparing the reconstructed DOT images with the magnetic resonance images of the forearm at the same position, the activated muscles can be identified in detail. As a result, the hemodynamics in the dominant muscles when performing flexion and extension of wrist are observed.

Fluorescence diffuse optical tomography by full time-resolved scheme

2007 ◽  
Author(s):  
Feng Gao ◽  
Hui Miao ◽  
Huijuan Zhao ◽  
Yukari Tanikawa ◽  
Yukio Yamada
Keyword(s):  
Optical Tomography ◽  
Diffuse Optical Tomography ◽  
Full Time ◽  
Time Resolved ◽  
Fluorescence Diffuse Optical Tomography
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