Lung-Kwang Pan

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The effective half-life of radioactive iodine for (near) thyroidectomy patients was evaluated using an in vivo gamma camera approach. Five patients with post administered iodine for remnant ablation of thyroid were thoroughly scanned in vivo for one to four weeks. Derived data were analyzed in a MATLAB program to revise the ICRP recommended effective(More)
Parkinson's disease (PD) is a neurodegenerative disease characterized by progressive loss of dopaminergic neurons in the basal ganglia. Single photon emission computed tomography (SPECT) scans using [99mTc]TRODAT-1 can image dopamine transporters and provide valuable diagnostic information of PD. In this study, we optimized the scanning parameters for(More)
The aim of this work tried to optimize the spider view of the coronary angiograph for the clinical diagnosis of cardiac artery disease by cardiologists. A qualified spider view in coronary angiography must be exactly a “quasi-spider” image, which can help to diagnose a lesion in left main coronary artery and related regions. Coronary artery phantom was(More)
PURPOSE To evaluate the annual effective dose per capita attributed to computed tomography (CT) examinations in 2013 and to predict the population effective dose from 2000 to 2013 in Taiwan. METHODS A CT examination database collected from 30 hospitals was divided into 22 procedures and classified into six regions: head, neck, chest, abdomen, pelvis, and(More)
The radioactivity along the central thimble hole of a decommissioned heavy water research reactor, TRR, was evaluated using TLD approach. The decay radionuclide was verified to be Co-60. The dose along the TRR central thimble hole was detected and revised by performing an unfolding analysis. The revised data reduced to 70-90% of the original data (for(More)
This study evaluated spatial Phi(th) inside a 70kg water phantom using the NAA method. Fifty indium foils were placed inside the water phantom and exposed under 15MV LINAC for 2.5min to yield the 10Gy X-ray dose. The Phi(th) value at the isocenter of the water was 1.03x10(6)ncm(-2)/Gy-X, and the maximum quantity of Phi(th) appeared at the water surface(More)
This study analyzed multiple biokinetic models using a dynamic water phantom. The phantom was custom-made with acrylic materials to model metabolic mechanisms in the human body. It had 4 spherical chambers of different sizes, connected by 8 ditches to form a complex and adjustable water loop. One infusion and drain pole connected the chambers to an(More)
This work analyzed metal concentrations and potential sources of sediment pollutants in the Tamsui River, Taiwan, by instrumental neutron activation analysis. The Tamsui River, the second longest of Taiwan's three major rivers, flows through metropolitan Taipei City in northern Taiwan and is renowned for its preserved mangrove wetlands. In total 11 elements(More)
This work demonstrated the improvement of the visualization of lesions by modulating the factors of an X-ray mammography imaging system using Taguchi analysis. Optimal combinations of X-ray operating factors in each group of level combination were determined using the Taguchi method, in which all factors were organized into only 18 groups, yielding(More)
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