A5021092819- Advanced X-ray and CT Imaging
- Radiation Dose and Imaging
- Medical Imaging Techniques and Applications
- Neonatal Health and Biochemistry
- Dental Radiography and Imaging
- Lung Cancer Diagnosis and Treatment
- ATP Synthase and ATPases Research
- Urological Disorders and Treatments
- Obsessive-Compulsive Spectrum Disorders
- Infectious Diseases and Tuberculosis
- Biochemical and Molecular Research
- Respiratory Support and Mechanisms
- Vibrio bacteria research studies
- Adenosine and Purinergic Signaling
- Abdominal vascular conditions and treatments
- HIV/AIDS oral health manifestations
- Chronic Obstructive Pulmonary Disease (COPD) Research
- Renal Diseases and Glomerulopathies
- Pediatric Urology and Nephrology Studies
- Oral microbiology and periodontitis research
- COVID-19 diagnosis using AI
- Ion Transport and Channel Regulation
- Cardiac Imaging and Diagnostics
- Arsenic contamination and mitigation
- Ear Surgery and Otitis Media
Kyushu University Hospital
2018-2024
Kyoto Katsura Hospital
2023-2024
Kyushu University
2022
Hamamatsu University School of Medicine
2020
Nippon Dental University
2004-2014
Nagoya University
2011
Toyama Prefectural University
2011
Nissan Tamagawa Hospital
2002-2006
Tsuchiura Kyodo General Hospital
2006
Tokyo Medical and Dental University
2006
Abstarct Measurements of the chemical composition snow pits at Murododaira (2450m a.s.l.), Mount Tateyama, near coast Japan Sea in central Japan, were performed each spring from 2005 through 2008. The mean concentrations nssSO 4 2– and NO 3 – are higher than those snowpack 1990s. pH nssCa 2+ usually high upper parts 2–3m deposited spring, when Asian dust (Kosa) particles frequently transported. High detected both winter layers. high-nssCa layers contained . results show that not only Kosa...
Abstract Purpose In an ultrahigh‐resolution CT (U‐HRCT), deep learning‐based reconstruction (DLR) is expected to drastically reduce image noise without degrading spatial resolution. We assessed a new algorithm's effect on quality at different radiation doses assuming abdominal protocol. Methods For the normal‐sized models, Catphan 600 was scanned by U‐HRCT with 100%, 50%, and 25% doses. all acquisitions, DLR compared model‐based iterative (MBIR), filtered back projection (FBP), hybrid (HIR)....
Objectives The lung nodule volume determined by CT is used for diagnoses and monitoring tumor responses to therapy. Increased image noise on low-dose degrades the measurement accuracy of volume. We compared volumetric among deep-learning reconstruction (DLR), model-based iterative (MBIR), hybrid (HIR) at an ultra-low-dose setting. Methods Artificial ground-glass nodules (6 mm 10 diameters, −660 HU) placed lung-apex middle-lung field in chest phantom were scanned 320-row with setting 6.3 mAs....
An 83-year-old woman was suspected to have lung cancer in the right lung. However, diffuse opacities only appeared left lung, and she urgently hospitalized due severe respiratory failure. The deteriorated, died despite treatments including antibiotics steroids. autopsy revealed pleomorphic carcinoma upper lobe, stenosis of pulmonary artery compression hilar lymph nodes, alveolar damage (DAD) throughout lobes. Acute distress syndrome (ARDS), which a histological feature is DAD, consists...
SUMMARY: Vibrio parahaemolyotcis utilized ATP, ADP or AMP as the sole source of carbon. About three times higher activity membrane-bound 5'-nucleotidase was observed in cells grown presence these nucleotides than their absence: and therefore enzyme seems to be inducible. Since could measured with whole cells, active site this appears outwardly oriented. Both Mg2+ CL− were required for activity. Among divalent cations tested, Mn2+ Co2+ replace some extent, whereas Zn2+ strongly inhibited...
To demonstrate the effect of an improved deep learning-based reconstruction (DLR) algorithm on Ultra-High-Resolution Computed Tomography (U-HRCT) scanners.
The patient was hospitalized due to rapidly undulant fever and sore throat. Empirical antibiotic therapy started, however, headache also occurred. Lumbar puncture disclosed polynuclear leukocyte-predominant pleocytosis indicating that the suffered from bacterial meningitis. antibiotics increased, consciousness became impaired erythema multiforme-like skin lesions appeared. T2-weighted brain magnetic resonance imaging showed high signal intensity in brainstem. HLA testing revealed B54 Cw1....
This study aimed to improve the impact of metal artefact reduction (MAR) algorithm for oral cavity by assessing effect acquisition and reconstruction parameters on an ultra-high-resolution CT (UHRCT) scanner.The mandible tooth phantom with without lesion was scanned using super-high-resolution, high-resolution (HR), normal-resolution (NR) modes. Images were reconstructed deep learning-based (DLR) hybrid iterative (HIR) MAR algorithm. Two dental radiologists independently graded degree (1,...
Journal Article Purification and Characterization of Membrane-Bound 5'-Nucleotidase Vibrio parahaemolyticus Get access Hiroko Itami, Itami Department Microbiology, Faculty Pharmaceutical Sciences, Okayama UniversityOkayama, 700 Search for other works by this author on: Oxford Academic PubMed Google Scholar Yuki Sakai, Sakai Tadashi Shimamoto, Shimamoto Hama, Hama Masaaki Tsuda, Tsuda Tomofusa Tsuchiya 2 To whom correspondence should be addressed. The Biochemistry, Volume 105, Issue 5, May...
Journal Article Cloning and Expression of the 5'-Nucleotidase Gene Vibrio parahaemolyticus in Escherichia coli Overproduction Enzyme Get access Yuki Sakai, Sakai Department Microbiology, Faculty Pharmaceutical Sciences, Okayama University, OkayamaOkayama 700 Search for other works by this author on: Oxford Academic PubMed Google Scholar Yumi Tamao, Tamao Tadashi Shimamoto, Shimamoto Hiroko Hama, Hama Masaaki Tsuda, Tsuda Tomofusa Tsuchiya 2 To whom correspondence should be addressed. The...
Arterial connection between the left and right kidneys is extremely rare. Only eight cases of such anomalous conditions have been reported in world literature all were confirmed by invasive angiography or dissection. We report a patient with this vascular anomaly clearly demonstrated 16-slice multidetector computed tomography.
The serum concentration of thyrotropin (thyroid stimulating hormone, TSH) is drastically reduced by small increase in the levels thyroid hormones (T3 and its prohormone, T4); however, mechanism underlying this relationship unknown. TSH consists chorionic gonadotropin α (CGA) β chain (TSHβ). expression both peptides induced transcription factor GATA2, a determinant thyrotroph gonadotroph differentiation pituitary. We previously reported that liganded T3 receptor (TR) inhibits transactivation...
Although idiopathic membranous nephropathy (IMN) is thought to represent a diffuse glomerulopathy, it was found that three of 31 children histologically diagnosed as IMN showed focal and segmental deposition immunoglobulin G (IgG) C3 on the glomerular capillary walls. The present study attempted comparatively investigate clinical pathological features group in children. Immunofluorescence revealed 28 exhibited granular IgG along In contrast, noted with IMN. addition, electron-dense deposits...
Abstract Objectives The purpose of this study was to compare the image quality ultra-high-resolution computed tomography (U-HRCT) with that conventional multi-detector row CT (convCT) and demonstrate its usefulness in dentomaxillofacial region. Methods Phantoms were helically scanned U-HRCT convCT scanners using clinical protocols. In U-HRCT, phantoms super-high-resolution (SHR) mode, hybrid iterative reconstruction (HIR) filtered-back projection (FBP) techniques performed a bone kernel...