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Methods and Early Clinical Results of Percutaneous Lumbar Interbody Fusion

Nakamura S, Ito F, Ito Z, Shibayama M

Objective: Percutaneous lumbar interbody fusion (PELIF) is a procedure that includes the use of new devices, which allow minimally invasive diskectomy under the percutaneous full-endoscopic guidance and safe percutaneous insertion...
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Use of an Internal Retractor for Percutaneous Full-Endoscopic Resection in Cervical Intervertebral Disc Herniation with a Posterior Approach

Nakamura S, Taguchi M

Study Design: A preliminary case series study. Purpose: For the safety of performing a posterior percutaneous full-endoscopic cervical discectomy. Overview of Literature: Because of the lack of space for inserting an outer...
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Low Iodine Dose is Related with Overestimation of Extracellular Volume Derived from Cardiac CT

Arakawa H, Tomizawa N, Chou S, Matsuoka S, Yamamoto K, Inoh S, Nojo T, Kumamaru KK, Fujimoto S, Nakamura S

Objective: To assess the relationship between the amount of injected contrast medium and the extracellular volume (ECV) value during cardiac CT and to propose a minimum amount of contrast medium...
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Review of a novel disease entity, immunoglobulin G4-related disease

Maehara T, Moriyama M, Nakamura S

Immunoglobulin G4 (IgG4)-related dacryoadenitis and sialoadenitis (IgG4-DS) are part of a multiorgan fibroinflammatory condition of unknown etiology termed IgG4-related disease (IgG4-RD), which has been recognized as a single diagnostic entity...
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Microvascular density under magnifying narrow-band imaging endoscopy in colorectal epithelial neoplasms

Gonai T, Kawasaki K, Nakamura S, Yanai S, Akasaka R, Sato K, Toya Y, Asakura K, Urushikubo J, Fujita Y, Eizuka M, Uesugi N, Sugai T, Matsumoto

Background/Aims: Magnifying endoscopic classification systems, such as the Japan narrow-band imaging (NBI) Expert Team (JNET) classification, have been widely used for predicting the histologic diagnosis and invasion depth of colorectal...
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Myocardial Coverage and Radiation Dose in Dynamic Myocardial Perfusion Imaging Using Third-Generation Dual-Source CT

Takafuji M, Kitagawa K, Ishida M, Goto Y, Nakamura S, Nagasawa N, Sakuma H

OBJECTIVE: Third-generation dual-source computed tomography (3rd-DSCT) allows dynamic myocardial CT perfusion imaging (dynamic CTP) with a 10.5-cm z-axis coverage. Although the increased radiation exposure associated with the 50% wider scan...
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Clinical importance of preoperative and postoperative prognostic nutritional index in patients with pancreatic ductal adenocarcinoma

Ikeguchi M, Goto K, Watanabe J, Urushibara S, Osaki T, Endo K, Tatebe S, Nakamura S

BACKGROUNDS/AIMS: The prognostic nutritional index (PNI) is based on the albumin concentration and absolute lymphocyte count and is designed to assess the nutritional and immunological status of patients. In this...
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Optimizing Contrast Medium Injection for Coronary CT Angiography Using Myocardial CT Perfusion Data

Tomizawa N, Chou S, Matsuoka S, Yamamoto K, Inoh S, Nojo T, Kumamaru K, Fujimoto S, Nakamura S

OBJECTIVE: To derive and validate a formula to predict the optimal amount of contrast medium for coronary CT angiography (CTA) from CT perfusion (CTP) data during comprehensive cardiac CT. MATERIALS AND...
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Efficacy and safety of abrilumab, an α4β7 integrin inhibitor, in Japanese patients with moderate-to-severe ulcerative colitis: a phase II study

Hibi T, Motoya S, Ashida T, Sai S, Sameshima , Nakamura S, Maemoto A, Nii M, Sullivan B, Gasser Jr , Suzuki Y

BACKGROUND/AIMS: Inhibition of α4β7 integrin has been shown to be effective for induction and maintenance therapy in patients with ulcerative colitis (UC). We investigated the effects of varying doses of...
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Step-by-Step Sublaminar Approach With a Newly-Designed Spinal Endoscope for Unilateral-Approach Bilateral Decompression in Spinal Stenosis

Ito F, Ito Z, Shibayama , Nakamura S, Yamada M, Yoshimatu , Takeuchi M, Shimizu K, Miura Y

OBJECTIVE: Spinal stenosis is increasingly common due to population aging. In elderly patients with lumbar central canal stenosis (LCCS), minimizing muscle damage and bone resection is particularly important. We performed...
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A Multivariate Analysis on the Effect of No Closed Suction Drain on the Length of Hospital Stay in Total Knee Arthroplasty

Nishitani , Kuriyama S, Nakamura S, Ito H, Matsuda S

PURPOSE: Despite the long history of drain use in total knee arthroplasty (TKA), no drain has been gaining popularity. The purpose of this study was to investigate whether drainage is...
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Distinction between Chronic Enteropathy Associated with the SLCO2A1 Gene and Crohn's Disease

Yanai S, Yamaguchi , Nakamura S, Kawasaki K, Toya Y, Yamada N, Eizuka M, Uesugi N, Umeno J, Esaki M, Okimoto E, Ishihara S, Sugai T, Matsumoto

BACKGROUND/AIMS: We recently identified recessive mutations in the solute carrier organic anion transporter family member 2A1 gene (SLCO2A1) as causative variants of chronic nonspecific multiple ulcers of the small intestine...
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Usefulness of fecal calprotectin by monoclonal antibody testing in adult Japanese with inflammatory bowel diseases: a prospective multicenter study

Nakamura S, Imaeda H, Nishikawa , Iimuro M, Matsuura M, Oka H, Oku J, Miyazaki T, Honda H, Watanabe K, Nakase H, Andoh A

BACKGROUND/AIMS: Noninvasive objective monitoring is advantageous for optimizing treatment strategies in patients inflammatory bowel disease (IBD). Fecal calprotectin (FCP) is superior to traditional biomarkers in terms of assessing the activity...
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Effect of elemental diet combined with infliximab dose escalation in patients with Crohn's disease with loss of response to infliximab: CERISIER trial

Hisamatsu , Kunisaki R, Nakamura S, Tsujikawa , Hirai F, Nakase H, Watanabe K, Yokoyama K, Nagahori M, Kanai T, Naganuma M, Michimae H, Andoh A, Yamada A, Yokoyama T, Kamata N, Tanaka S, Suzuki Y, Hibi T, Watanabe M, CERISIER Trial group

No abstract available.
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Immunohistochemical differentiation between chronic enteropathy associated with SLCO2A1 gene and other inflammatory bowel diseases

Yamaguchi , Yanai S, Nakamura S, Kawasaki K, Eizuka M, Uesugi N, Sugai T, Umeno J, Esaki M, Matsumoto

BACKGROUND/AIMS: We recently identified recessive mutations in the solute carrier organic anion transporter family member 2A1 gene (SLCO2A1) as causative variants of chronic enteropathy associated with SLCO2A1 (CEAS). The aim...
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Dynamic CT Perfusion Imaging: State of the Art

Kitagawa K, Goto Y, Nakamura S, Takafuji M, Hamdy A, Ishida M, Sakuma H

Recent advances in computed tomography (CT) technology have enabled stress dynamic CT perfusion (CTP) imaging of the entire myocardium to be performed with high temporal resolution and reasonable radiation dose....
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Predicting outcomes to optimize disease management in inflammatory bowel disease in Japan: their differences and similarities to Western countries

Kobayashi , Hisamatsu , Suzuki Y, Ogata H, Andoh A, Araki T, Hokari R, Iijima H, Ikeuchi H, Ishiguro Y, Kato S, Kunisaki R, Matsumoto , Motoya S, Nagahori M, Nakamura S, Nakase H, Tsujikawa , Sasaki M, Yokoyama K, Yoshimura , Watanabe K, Katafuchi , Watanabe M, Hibi T

Inflammatory bowel disease (IBD), including Crohn's disease (CD) and ulcerative colitis (UC), is a chronic inflammatory disease of the gastrointestinal tract, with increasing prevalence worldwide. IBD Ahead is an international...
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Percutaneous Endoscopic Cervical Discectomy: Surgical Approaches and Postoperative Imaging Changes

Nakamura S, Taguchi M

STUDY DESIGN: Retrospective clinical study. PURPOSE: This study investigated the relationship between surgical approaches and surgical outcomes in patients undergoing percutaneous endoscopic cervical discectomy (PECD), including the reduction in intervertebral disc...
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Area of Ostectomy in Posterior Percutaneous Endoscopic Cervical Foraminotomy: Images and Mid-term Outcomes

Nakamura S, Taguchi M

STUDY DESIGN: Retrospective. PURPOSE: To analyze whether the cross-sectional area of the intervertebral foramen at the outermost edge of the resection site is associated with postoperative outcomes and whether our fluoroscopic...
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Characteristics of Primary and Metachronous Gastric Cancers Discovered after Helicobacter pylori Eradication: A Multicenter Propensity Score-Matched Study

Maehata Y, Nakamura S, Esaki M, Ikeda F, Moriyama T, Hida R, Washio E, Umeno J, Hirahashi , Kitazono T, Matsumoto

BACKGROUND/AIMS: Gastric cancers develop even after successful Helicobacter pylori eradication. We aimed to clarify the characteristics of early gastric cancers discovered after H. pylori eradication. METHODS: A total of 1,053 patients...
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