No abstract available.

No abstract available.
Infection Control*

No abstract available.
Embryo Transfer* ; Embryonic Structures* ; Fertilization in Vitro* ; Gangwon-do*

No abstract available.
Pregnancy* ; Spermatozoa*

No abstract available.
Pancreatitis*

No abstract available.
Surgery, Plastic

No abstract available.
Clavicle* ; Humans ; Infant, Newborn*

No abstract available.
Clavicle* ; Humans ; Infant, Newborn*

PURPOSE: To date, the high spatial frequency algorithm (HSFA) which reduces image smoothing and increases spatial resolution has been used for the evaluation of parenchymal lung diseases in thin-section high-resolution CT. In this study, we compared the ultrahigh spatial frequency algorithm (UHSFA) with the high spatial frequency algorithm in the assessment of thin section images of the lung parenchyma. METHODS AND MATERIALS: Three radiologists compared the UHSFA and HSFA on identical CT images in a line-pair resolution phantom, one lung specimen, 2 patients with normal lung and 18 patients with abnormal lung parenchyma. RESULTS: Scanning of a line-pair resolution phantom demonstrated no difference in resolution between two techniques but it showed that outer lines of the line pairs with maximal resolution looked thicker on UHSFA than those on HSFA. Lung parenchymal detail with UHSFA was judged equal or superior to HSFA in 95% of images. Lung parenchymal sharpness was improved with UHSFA in all images. Although UHSFA resulted in an increase in visible noise, observers did not found that image noise interfered with image interpretation. The visual CT attenuation of normal lung parenchyma is minimally increased in images with HSFA. The overall visual preference of the images reconstructed on UHSFA was considered equal to or greater than that of those reconstructed on HSFA in 78% of images. CONCLUSION: The ultrahigh spatial frequency algorithm improved the overall visual quality of the images in pulmonary parenchymal high-resolution CT.
Humans ; Lung Diseases ; Lung* ; Noise

Typical nephroblastoma arise within the renal parenchyme and have pseudocapsules composed of compressed renal tissue, renal capsule and adjacent perirenal tissue. Therefore, it is rarely possible to determine whether the tumor arose from the cortex or medulla. Many authors believe that they are probably cortical in origin and arise from nodular renal blastema just beneath the renal capsule or in the centers of columns of Bertin. We experienced a nephroblastoma supposed to arise from peripelvic region. The patient was a 7 months old male infant with an abdominal mass. Left nephrectomy was done under the impression of nephroblastoma. Received specimen was a diffusely enlarged kidney with preserved normal outline, so it looked like a hydronephrotic kidney. On section, the pelvis and calyceal system were dilated and totally filled with a gray white soft mass. Most portion of the mass was floating freely in the calyces and pelvis, and only a small portion was attached to the renal parenchyme but without invasion to it. Microscopically the mass was a nephroblastoma containing many well developed glomeruli and tubules. We presumed that the tumor arose from a nodular renal blastema in the peripelvic region, because the tumor had no connection to the renal cortex.
Infant ; Male ; Female ; Humans