Measurement of human-body-window spectra using a white power light-emitting diode and its application to high-spatial-resolution computed tomography

Jun
24
2019

European Conferences on Biomedical Optics (ECBO) > Preclinical and Clinical Optical Diagnostics > Lunch Break and Poster Session - Monday

24. Jun 2019
12:45-14:15 h  |  Hall B0 Hall B0, ICM

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Subjects: 

Biophotonics and Medical Engineering

Participants: 

Hodaka Moriyama 

(Toho University)

Type:
Poster
Speech: English
Human body mainly consists of muscle, bone and air, and we name penetrating photons the human-body-window (HBW) rays. The HBW spectra were measured using a white power light-emitting diode (LED) and a spectrometer. The photons from the LED penetrate the human body, and reflect, refract and scatter. Therefore, we measured only penetrating HBW spectra from the human body. In the HBW-CT, we used two 1.0-mm-diam copper pinholes and a 1.0-mm-diam polyacetal collimator. The white rays from the LED is focused by a lens, the white beam diameter is reduced using the pinhole, and the 1.0-mm-diam beam is exposed to the object. The penetrating HBW photons are selected out using the pinhole behind the object and detected by the phototransistor through the collimator. HBW-CT is accomplished by repeated translations and rotations of the object. The peak wavelength of the HBW spectra was 610 nm. The translation and rotation steps were 0.25 mm and 1.0º, respectively, and the spatial resolutions were determined as 1.0×1.0 mm2. The scanning time and a total rotation angle for CT were 9.8 min and 180º, respectively.

Author
Hodaka Moriyama, Toho University Show Profile

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EntranceEast
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Outdoor areas
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ConferenceCenter Nord
ICM
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EntranceWest
Atrium
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Jun
24
2019

European Conferences on Biomedical Optics (ECBO) > Preclinical and Clinical Optical Diagnostics > Lunch Break and Poster Session - Monday

Analysis of modern non-invasive methods of optoelectronic control of the skin

24. Jun 2019
12:45-14:15 h  |  Hall B0 Hall B0, ICM

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Jun
24
2019

European Conferences on Biomedical Optics (ECBO) > Preclinical and Clinical Optical Diagnostics > Lunch Break and Poster Session - Monday

Clinical use of contrast agents to enhance skin structures in reflectance and fluorescence confocal microscopy and optical coherence tomography: a systematic review and patient cases

24. Jun 2019
12:45-14:15 h  |  Hall B0 Hall B0, ICM

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Jun
24
2019

European Conferences on Biomedical Optics (ECBO) > Preclinical and Clinical Optical Diagnostics > Lunch Break and Poster Session - Monday

In vivo multimodal fibre-probe spectroscopy for glioblastoma detection in mouse model

24. Jun 2019
12:45-14:15 h  |  Hall B0 Hall B0, ICM

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Jun
24
2019

European Conferences on Biomedical Optics (ECBO) > Diffuse Optical Spectroscopy and Imaging > Lunch Break and Poster Session - Monday

Spatial-frequency-domain optical tomography in the radiative transport regime

24. Jun 2019
12:45-14:15 h  |  Hall B0 Hall B0, ICM

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Jun
24
2019

European Conferences on Biomedical Optics (ECBO) > Diffuse Optical Spectroscopy and Imaging > Lunch Break and Poster Session - Monday

Pathlength distribution of (sub)diffusively reflected light

24. Jun 2019
12:45-14:15 h  |  Hall B0 Hall B0, ICM

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