KEYWORDS: Positron emission tomography, Magnetic resonance imaging, Brain, High dynamic range imaging, Image processing, Tomography, Dementia, Proteins, Digital image processing, Medicine
In this paper, we investigated 18F-THK5351 PET/CT image of normal Thai population for the optimized time of radioactive tracer PET/CT. Twenty-five volunteers without neurological or psychiatric illnesses and all of them have no abnormalities detected on neurologic examination. All subject were underdiagnosed on 18F-THK5351 PET/CT and 3.0 Tesla MR imaging. THK5351 PET/CT were operated on the co-registered MRI comprised for drawing an ROI. The DICOM file was converted to .img file, .hdr file and then merge with each other for obtaining an fmridata.mat. Position of ROI and fmridata.mat were used to plot graph showing the relationship between quantitative uptake with the frame of image. The optimized time of 18F-THK5351 PET/CT in normal Thai population is 50 to 70 minutes.
KEYWORDS: Corrosion, Beam splitters, Metals, Charge-coupled devices, 3D modeling, 3D image reconstruction, Free space optics, Interferometers, Digital holography, Polarization
In this research, phase retrieval using transport of intensity equation (TIE) and transport of phase equation (TPE) have been used for determine the surface of corrosion behavior of electrodeposited Co-Fe alloys, an important component in hard disk drive. Without interferometer as used in digital holography technique, by using TIE and TPE, our observing setup is simple and compact. The experimental results show the capability of TIE and TPE for observing the pitting corrosion. The pitting corrosion of Co-Fe image results have also shown. The dynamic process of microstructure surface system would be conducted and may be applied to hard disk drive industry in the future.
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