Work

Diffuse optical tomography using multi-directional sources and detectors

Year: 2016

Type: article

Abstract: Diffuse optical tomography (DOT) is an advanced imaging method used to visualize the internal state of biological tissues as 3D images. However, current continuous-wave DOT requires high-density probe arrays for measurement (less than 15-mm interval) to gather enough information for 3D image reconstruction, which makes the experiment time-consuming. In this paper, we propose a novel DOT measurement system using multi-directional light sources and multi-directional photodetectors instead of high-density probe arrays. We evaluated this system's multi-directional DOT through computer simulation and a phantom experiment. From the results, we achieved DOT with less than 5-mm localization error up to a 15-mm depth with low-density probe arrays (30-mm interval), indicating that the multi-directional measurement approach allows DOT without requiring high-density measurement.

Source: Biomedical Optics Express

DOI: 10.1364/boe.7.002623

Authors: Takeaki Shimokawa, Toshihiro Ishii, Yoichiro Takahashi, Satoru Sugawara, Masa-aki Sato, Okito Yamashita

Institutions: Advanced Telecommunications Research Institute International, Ricoh (Japan)

Language: English

Topic: Optical Imaging and Spectroscopy Techniques

Subfield: Radiology, Nuclear Medicine and Imaging

Field: Medicine

Domain: Health Sciences

Open Access status: gold

Estimated APC paid: $1,913

Funders: Iran Telecommunication Research Center, National Institute of Information and Communications Technology