Publications by authors named "Maehara C"

Purpose This study aimed to determine the costs associated with prostatic artery embolization (PAE) performed in hospital and outpatient-based lab (OBL) settings. Methods Procedures were performed in similarly equipped procedure suites located within a tertiary hospital or OBL. Time-driven activity-based costing (TDABC) was utilized to calculate procedural costs incurred by the institution.

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Aim: To determine the costs associated with endovascular pulmonary embolism (PE) interventions.

Materials And Methods: Procedural costs were determined utilising time-driven activity-based costing (TDABC). A multidisciplinary team created process maps describing personnel, space, equipment, materials, and time required for each procedural step.

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Background And Aims: Determining surveillance intervals for patients with colorectal polyps is critical but time-consuming and challenging to do reliably. We present the development and assessment of a pipeline that leverages natural language processing techniques to automatically extract and analyze relevant polyp findings from free-text colonoscopy and pathology reports. Using this information, we categorized individual patients into 6 postcolonoscopy surveillance intervals defined by the U.

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Individuals diagnosed with colorectal adenomas with high-risk features during screening colonoscopy have increased risk for the development of subsequent adenomas and colorectal cancer. While US guidelines recommend surveillance colonoscopy at 3 years in this high-risk population, surveillance uptake is suboptimal. To inform future interventions to improve surveillance uptake, we sought to assess surveillance rates and identify facilitators of uptake in a large integrated health system.

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Background: Takotsubo syndrome (TS) is an acute, reversible form of heart failure, often mimicking an acute coronary syndrome (ACS). Data regarding racial differences in TS are inconsistent. The aim is to assess clinical features associated with unfavorable in-hospital outcomes between African American (AA) and Caucasian (CAU) patients.

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Purpose: The efficacy of infliximab (IFX) and adalimumab (ADA) for treating Behçet's syndrome (BS) and sarcoidosis has not been compared adequately.

Methods: We reviewed the medical records of patients with uveitis diagnosed at Tokyo Medical University Hospital and compared the efficacy of IFX and ADA for BS and the efficacy of ADA for sarcoidosis and BS.

Results: 68 patients in IFX group and 63 patients in ADA group were analyzed.

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Article Synopsis
  • * A 64-year-old diabetic patient developed keratoconjunctivitis due to S. argenteus, which did not respond to levofloxacin eye drops but improved significantly after switching to vancomycin.
  • * The strain isolated from the patient was confirmed to be S. argenteus and belonged to sequence type 1223, with various virulence genes similar to those of S. aureus, highlighting the need for more research on this organism.
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The objective of our study was to determine the performance of 3-T multiparametric MRI (mpMRI) for prostate cancer (PCa) detection and localization, stratified by anatomic zone and level, using Prostate Imaging Reporting and Data System version 2 (PI-RADSv2) and whole-mount histopathology (WMHP) as reference. Multiparametric MRI examinations of 415 consecutive men were compared with thin-section WMHP results. A genitourinary radiologist and pathologist collectively determined concordance.

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The purpose of this study is to determine the overall and sector-based performance of 3-T multiparametric MRI for prostate cancer (PCa) detection and localization by using Prostate Imaging-Reporting and Data System version 2 (PI-RADSv2) scoring and segmentation compared with whole-mount histopathologic analysis. Multiparametric 3-T MRI examinations of 415 consecutive men were compared with thin-section whole-mount histopathologic analysis. A genitourinary radiologist and pathologist collectively determined concordance.

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Background: Multiparametric magnetic resonance imaging (mpMRI) undoubtedly affects the diagnosis and treatment of localized prostate cancer (CaP). However, clinicians need a better understanding of its accuracy and limitations in detecting individual CaP foci to optimize management.

Objective: To determine the per-lesion detection rate for CaP foci by mpMRI and identify predictors of tumor detection.

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Natural Language Processing (NLP) is essential for concept extraction from narrative text in electronic health records (EHR). To extract numerous and diverse concepts, such as data elements (i.e.

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Objective: Delayed diagnosis of Kawasaki disease (KD) may lead to serious cardiac complications. We sought to create and test the performance of a natural language processing (NLP) tool, the KD-NLP, in the identification of emergency department (ED) patients for whom the diagnosis of KD should be considered.

Methods: We developed an NLP tool that recognizes the KD diagnostic criteria based on standard clinical terms and medical word usage using 22 pediatric ED notes augmented by Unified Medical Language System vocabulary.

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The presence of IgG against pathogens in the cord blood (CB) of vaccinated mothers is attributed to transplacental transfer. However, previous studies using lymphocytotoxicity assay showed anti-HLA IgG in mother's blood (MB) but not in CB, perhaps due to non-transfer of anti-HLA IgG or assay limitations in detecting anti-HLA IgG. Anti-HLA IgG of native and purified sera of 16 MB and CB pairs were measured using an array of microbeads coated with HLA-I/-II molecules on a Luminex platform.

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In recent years, there have been multiple studies published on longitudinal and retrospective analysis of anti-human leukocyte antigen (anti-HLA) antibodies. The focus of these reports was to determine specific characteristics of the impact of donor specific anti-HLA antibodies (DSA) in organ transplantation. There has been a growing concern about DSA in a multitude of organ transplants.

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Objective: The purpose of this study was to assess radiologists' adherence to published guidelines for managing renal masses detected at abdominal CT at one institution and to a critical results communication policy.

Materials And Methods: A validated natural language processing tool supplemented by manual review was used to randomly assemble a cohort of 97 radiology reports from all abdominal CT reports (n = 11,952) generated from July 2010 to June 2011. Critical renal mass findings warranted consideration for surgery, intervention, or imaging follow-up and required direct, separate, and timely communication to the referrer in addition to the radiology report.

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Intravenous immunoglobulin (IVIg) reacted with a wide array of human leucocyte antigen (HLA) alleles, in contrast to normal sera, due possibly to the purification of IgG from the pooled plasma. The reactivity of IgG purified from normal sera was compared with that of native sera to determine whether any serum factors mask the HLA reactivity of anti-HLA IgG and whether IgG purified from sera can recognize the HLA types of the corresponding donors. The purified IgG, unlike native sera, mirrored IVIg reactivity to a wide array of HLA-I/-II alleles, indicating that anti-HLA IgG may be masked in normal sera - either by peptides derived from soluble HLA or by those from antibodies.

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The aim of this study was to confirm the daptomycin (DAP) susceptibility of bacteria isolated before the launch of DAP in Japan. DAP showed good activity against all 833 isolates (MIC90 = 0.25-0.

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Purpose: To determine renal cancer incidence in simple cyst-appearing renal masses detected at unenhanced computed tomography (CT).

Materials And Methods: Institutional review board approval and an informed consent waiver for this retrospective HIPAA-compliant study were obtained. Patients who had renal masses with homogeneous water attenuation, hairline-thin smooth walls, and no calcifications or septations were identified by applying a validated natural language processing algorithm to radiology reports for 15 695 unique patients who underwent unenhanced abdominal CT at our institution between 2000 and 2005.

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Purpose: Bedside chest radiography (CXR) represents a substantial fraction of the volume of medical imaging for inpatient health care facilities. However, its image quality is limited compared with posterior-anterior/lateral (PA/LAT) acquisitions taken in radiographic rooms. The aim of this study was to evaluate the utilization of bedside CXR and other chest imaging modalities before and after placing a radiography room within a thoracic surgical inpatient ward.

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Between January and April 2002, a total of 271 strains of Staphylococcus aureus were isolated from clinical specimens at Toho University Omori Hospital, Japan, including 201 (74.2 %) which were identified as meticillin-resistant S. aureus (MRSA).

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