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Thermionic emission (TE)-type X-ray generators have been exclusively used in medicine, but there are many difficulties in making these X-ray sources compact. A field emission (FE)-type X-ray generator using carbon nanotubes is a newly-developed compact system that can be as small as several cm in length. Considering the compactness of the equipment, the(More)
The computerization of the clinical record and the realization of the multimedia has brought improvement of the medical service in medical facilities. It is very important for the patients to obtain comprehensible informed consent. Therefore, the doctor should plainly explain the purpose and the content of the diagnoses and treatments for the patient. We(More)
A theoretical framework for the electron field emission from carbon nanotubes (CNTs) is discussed. Using the tunneling theory, the influence of the detailed electron energy dispersion is proven to be of little importance for the electron field emission. By means of numerical computations in a simplified model, the influence of the environment on the local(More)
An electron gun constructed using carbon-nanofiber (CNF) emitters and an electrostatic Einzel lens system has been characterized for the development of a high-resolution x-ray source. The CNFs used were grown on tungsten and palladium tips by plasma-enhanced chemical-vapor deposition. Electron beams with the energies of 10<E<20 keV were focused by the(More)
hh tt tt Abstract— Optical Coherence Tomography (OCT) image is very useful to the diagnosis and the follow up evaluation of the response to treatment using either medication or surgery, and it is an emerging medical imaging technology for performing high resolution cross-sectional images. In ophthalmology, this technology can provide 3D images of retinal(More)
d m L E T c t m c T R t i m m e s t a t e c a 1 t C u i b i r w u [ m f b g Auto A G 1577 K y In the field of retina and i diagnosis of measurement Limiting Me Epithelium (R Tomography (conventional techniques and most cases of n cannot be app This paper pro RPE using two-dimension images to imp method, retina morphologica extract RPE structure of th the(More)
Informed consent for patients becomes important clinics where the doctor explains diseases and treatments. But patients have difficulty understanding medical images, i.e. X-rays, CT or MRI because the patient is not expert in reading these medical images. In this paper, we tried to reconstruct the stereoscopic image of CT and MRI and display these using a(More)
Optical Coherence Tomography (OCT) has emerged as a new technology that enables high-resolution cross-sectional images of the retina for identifying, and quantitatively assessing of the retina disease. Quantitative information of retina is needed for tracking progression of ocular disease and evaluatesthe efficacy of treatment. In this paper, we propose a(More)