이재석 교수

INTRODUCTION: There are relatively few studies that compare the use of transrectal ultrasound (TRUS) to magnetic resonance imaging (MRI) to estimate the prostate volume. In this study, we compared the prostate volumes measured with MRI and TRUS with a surgical specimen volume. PATIENTS AND METHODS: Seventy-three patients underwent TRUS examination of the prostate prior to radical prostatectomy. All specimens were weighed and measured when freshly excised. The corresponding volume measurements ca

N-confused and N-fused porphyrins revealed quite unique photophysical properties arising from their perturbed pi-conjugation pathways induced by structural modifications such as confusion and fusion of pyrrole rings compared with their parent porphyrin molecules.

Although it is not rare to find sputum that is positive acid-fast bacilli (AFB) smear but subsequent culture fails to isolate mycobacteria in clinical practice, the incidence and clinical implication of those sputa from new patients has not been clearly elucidated. The aim of this study was to determine the incidence and clinical implication of sputum with positive AFB smear but negative in mycobacterial culture. All sputa that were positive AFB smear requested during diagnostic work up for new

OBJECTIVE: The morphological interpretation of liquid-based preparation (LBP) remains a diagnostic challenge due to altered cytomorphology with technical reason. Only a few published accounts of the cytopathological features needed for diagnosis of papillary thyroid carcinoma (PTC) on an LBP exist. We utilized the SurePath LBP system to evaluate conventional and newly recognized cytomorphologic features on histologically confirmed PTC to identify their potent diagnostic significance compared to

BACKGROUND: We investigated the diagnostic and prognostic usefulness of anaplastic lymphoma kinase (ALK) expression in Asian rhabdomyosarcoma (RMS) patients. PATIENTS AND METHODS: A total of 38 RMS tissue samples were collected over a 14-year period (1998-2012). ALK protein expression and gene copy number were analysed by immunohistochemistry (IHC) and fluorescence in situ hybridisation (FISH). RESULTS: Ten of the 38 RMS patients (26.3%) showed positive ALK protein expression. ALK protein expres

Cerium-doped nanophosphor particles were synthesized using flame spray pyrolysis (FSP) from urea-added nitrate liquid precursor with different molar ratios of yttrium to aluminum. The effect of urea and Y:Al molar ratio in the liquid precursor on the crystallinity and luminescence properties of nanophosphors was studied. The cubic YAG structure was obtained after heat-treatment of as-prepared particles. The addition of urea leads to a higher flame temperature and helps in the formation of crysta

Zn2SiO4:Mn2+ nanophosphors were synthesized by flame spray pyrolysis (FSP) from different liquid precursors. Luminescence and crystalline properties were investigated as different Zn-source materials in aqueous precursor. Mn-doped zinc silicate (Zn2SiO4:Mn2+) crystalline structures were annealed low temperature of 1000° for 1hr. The emission peak was found at 525 nm for green emitting phosphor. The influence of different experimental conditions such as liquid precursor from different Zn-source a