Publications by authors named "Sekino H"

: We aimed to clarify the clinical characteristics of global and regional myocardial perfusion in patients with transthyretin type of cardiac amyloidosis (ATTR) using dual single-photon emission computed tomography (SPECT) with Tc pyrophosphate (PYP) and TL (TL). : Consecutive 178 (mean age 78±12, male 79) patients known or suspect of ATTR who underwent PYP-TL dual SPECT were retrospectively enrolled. Patients were categorized according to the visual grading for planar PYP uptake using Perugini grading, and the patients with grade greater than or equal to 2 were analyzed.

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Despite the importance of T-weighted image in clinical practice, artifacts can significantly degrade image quality and affect diagnosis. This study quantitatively analyzed uterine displacement and surveyed the relationship between the image quality of fast-spin-echo-T-weighted image of the female pelvis and quantitative value of uterine displacement. Overall, 147 women (mean age, 46.

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ASP8302 is an orally administered positive allosteric modulator of the muscarinic M receptor. Two Phase 1 studies were conducted, a first-in-human study in Europe and a Japanese phase 1 study. Both were randomized, participant- and investigator-blinded, placebo-controlled, single and multiple ascending oral doses, parallel group, clinical studies in healthy volunteers.

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  • The study investigates the use of two different methods for collecting T1-weighted imaging (T1WI) during amyloid-β PET scans, comparing simultaneous acquisitions during PET/MRI and separate examinations during PET + MRI.
  • By analyzing data from 49 patients who underwent both types of PET scans, researchers aimed to understand the correlation and differences in Centiloid (CL) values, which are important for assessing amyloid levels in the brain.
  • Results showed a strong linear correlation in CL values between both imaging methods across different PET tracers, with no significant differences found, suggesting both methods are reliable for analyzing amyloid-β.
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This paper presents the first converged frequency-dependent HF polarizability results for general molecules, on a set of 89 closed-shell atoms and molecules. The solver employs multiresolution analysis (MRA) in a multiwavelet basis to compute both ground and response states to a guaranteed precision, which are validated against independent numerical grid calculations on atoms and linear molecules. The MRA ground-state energies and response properties are used to evaluate results in correlation-consistent basis sets up to 5Z augmented with either single or double diffuse functions and core-polarization functions.

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  • Remote cardiac rehabilitation (RCR) is a method designed for patients recovering from cardiovascular diseases, utilizing real-time monitoring and technology for safety and effectiveness.
  • A study in Japan involved 53 RCR patients exercising at home for 2-3 months, with real-time support, and compared their results to 103 patients who underwent traditional center-based rehabilitation.
  • The findings showed that RCR was just as safe and effective in improving exercise capacity as traditional methods, with no significant complications reported in the RCR group.
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  • Chronic kidney disease and anemia are important factors in heart failure, and recent treatments include HIF-PH inhibitors for renal anemia.
  • A study with 40 patients compared the effects of switching from CERA to four different HIF-PH inhibitors, focusing on changes in hemoglobin levels and other health markers.
  • Results showed no significant overall difference in hemoglobin levels between treatments, but roxadustat was superior to others after six months; however, due to the small sample size, further research is needed to understand the full impact of HIF-PH inhibitors.
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  • - The study investigates how respiratory movements affect the positioning of the right adrenal vein (RAV) in order to improve the accuracy of adrenal venous sampling (AVS) for diagnosing primary aldosteronism.
  • - CT scans taken at different respiratory phases (inhalation vs. exhalation) were analyzed alongside venograms of the RAV to measure variations in its location, particularly in relation to the thoracic vertebrae.
  • - Findings revealed significant differences in the RAV's measured distances and angles between the two respiratory phases, indicating that the timing of CT scanning is critical for accurately locating the RAV during procedures.
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Coil migration can occur when coil embolization is used for treating pseudoaneurysms associated with large arteries. The double microcatheter technique is useful for preventing coil migration; the balloon catheter can reduce blood flow and active bleeding upon balloon inflation, and can also compress the bleeding point and arrest bleeding temporarily. We report a case describing the management of a pseudoaneurysm with coil embolization using double microcatheters and a balloon catheter to control blood flow and prevent coil migration.

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  • Paravalvular leakage (PVL) is a complication that can occur after transcatheter aortic valve implantation (TAVI), negatively affecting patient outcomes.
  • A study assessed the relationship between preoperative aortic valve calcium volume (Ca-Vol) and the occurrence of PVL in 59 patients who underwent TAVI, finding higher Ca-Vol in those with PVL.
  • The research indicated that total and specific cusp Ca-Vols were significant predictors of PVL, with specific cut-off values established for predicting the risk of leakage post-surgery.
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Objectives: To investigate the relationship between conventionally obtained serum-based biochemical indices and intravoxel incoherent motion imaging (IVIM) parameters compared with magnetic resonance elastography (MRE).

Methods: Patients with hepatocellular carcinoma who underwent ≥2 liver magnetic resonance imaging (MRI) scan, including IVIM and MRE, between 2017 and 2020 and biochemical testing within 1 week before or after MRI were included in this study. Biochemical tests were performed to determine the albumin-bilirubin (ALBI) score and modified ALBI (mALBI) grade, aspartate aminotransferase to platelet ratio index (APRI), and fibrosis-4 index (FIB-4).

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Purpose: Edaravone is a neuroprotective agent approved as an intravenous treatment for amyotrophic lateral sclerosis (ALS). The intravenous administration of edaravone places a burden on patients and there is a clinical need for oral agents for the treatment of ALS. This report aimed to assess the pharmacokinetics and safety of an edaravone oral suspension in patients with ALS after oral and percutaneous endoscopic gastrostomy (PEG) tube administration.

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Pharmacological studies have demonstrated antibody production and infection prevention with an intradermal coronavirus disease 2019 (COVID-19) DNA vaccine (AG0302-COVID-19). This clinical trial aimed to investigate the safety and immunogenicity of high doses of AG0302-COVID19 when injected intramuscularly and intradermally. Healthy adults were randomly divided into three intramuscular vaccination groups (2 mg, three times at 2-week intervals; 4 mg, twice at 4-week intervals; and 8 mg, twice at 4-week intervals) and two intradermal groups (1 mg, three times at 2-week intervals or twice at 4-week intervals).

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Surgical resection is recommended for advanced-stage, resectable glottic cancer. However, total laryngectomy results in the loss of vocal function and reduces patients' quality of life. At our institution, patients with cT3N0M0 stage III resectable glottic cancer who wish to preserve their larynx are treated with super-selective cisplatin infusion with concomitant radiotherapy (RADPLAT) to improve local control over systemic chemotherapy.

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We investigated humoral immune responses in 222 unvaccinated Japanese people after recovery from severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection in 2021. Anti-spike-protein IgG antibody levels and neutralizing antibody titers were measured in serum samples obtained within 20-180 days after diagnosis. The geometric mean of antibody titers was 1555 ELU/mL (95% confidence interval (CI) = 1257-1923), and the neutralizing activity (50% inhibitory dilution) was 253 (95% CI = 204-313).

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Objective: The aim of the study is to evaluate whether the prediction of anemia is possible using quantitative analyses of unenhanced cranial computed tomography (CT) with deep learning reconstruction (DLR) compared with conventional methods.

Methods: This cross-sectional retrospective study included 116 participants (76 males; mean age, 66.7) who had hemoglobin (Hb) levels obtained within 24 hours of unenhanced cranial CT, which included 2 reconstruction methods: DLR and hybrid iterative reconstruction.

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Purpose: The aim of this study was to investigate the incidence of bowel wall swelling after iodine-contrast media injection and its relationship with gastrointestinal symptoms.

Methods: The incidence of bowel wall swelling was examined in 75 patients who showed adverse reactions to iodine-contrast media (AR[+] group) and 75 controls without adverse reactions (AR[-] group). Bowel wall swelling was identified if there was increased wall thickness on postcontrast computed tomography when compared with precontrast computed tomography.

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Background: Oral beta-blockers are effective for heart failure and hypertension. Here, we conducted a prospective study to investigate the efficacy of the beta-blocker bisoprolol in patients switching from the oral tablet to the transdermal patch.

Methods: We studied 50 outpatients receiving oral bisoprolol for chronic heart failure and hypertension.

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  • A study compared the safety and effectiveness of aspiration-type and non-aspiration-type semi-automatic cutting biopsy needles during CT-guided core needle biopsies in 106 patients with chest lesions.
  • Results showed that while both needle types had comparable diagnostic accuracy, the aspiration-type needle required fewer needle passes and shorter procedure times.
  • Complications like pneumothorax and pulmonary hemorrhage were observed in both groups, but their incidence was not significantly different.
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Erythropoiesis-stimulating agents improve the NYHA functional class and decrease the hospital readmission rates for heart failure; however, little is known about the influence of continuous erythropoietin receptor activator (CERA) on the heart. Therefore, a prospective study was conducted to investigate the effects of CERA on cardiac and renal function and oxidative stress in chronic heart failure with renal anemia. Sixty patients with chronic heart failure and renal anemia were enrolled and received CERA for 12 months.

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  • The study aimed to compare phase analysis from positron emission tomography (PA) with magnetic resonance feature tracking (FT) for assessing left ventricular mechanical dyssynchrony in patients with ischemic heart disease.
  • Significant correlations were found between measures of dyssynchrony like histogram bandwidth and phase standard deviation from both techniques, particularly with global longitudinal strain and short axis circumferential strain.
  • The results highlighted a good overall agreement between the dyssynchrony indices derived from PET phase analysis and MR strain, indicating that both methods can effectively assess ventricular synchrony.
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Imeglimin is a diabetic drug excreted mainly in the urine; therefore, the impact of renal impairment on its pharmacokinetics (PK) is of interest. We assessed the PK and safety of imeglimin in Japanese patients with impaired renal function. This was an uncontrolled, open-label, single-dose, phase 1 study.

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  • * The case report describes two patients: the first, a 40-year-old male with high FDG uptake and aggressive tumor characteristics, who sadly passed away 2 years after diagnosis.
  • * In contrast, a 65-year-old female with low FDG uptake had a lower-grade tumor that was successfully removed and remained relapse-free two years post-surgery, suggesting FDG uptake could indicate tumor severity and outcomes.
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Objective: To confirm the relationship between lumbar spinal stenosis (LSS) and cauda equina movement during the Valsalva maneuver.

Materials And Methods: Two radiologists at our institution independently evaluated cauda equina movement on pelvic cine MRI, which was performed for urethrorrhea after prostatectomy or pelvic prolapse in 105 patients (99 males; mean age: 69.0 [range: 50-78] years), who also underwent abdominopelvic CT within 2 years before or after the MRI.

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The current status of cardiac rehabilitation (CR) after cardiac surgery and the introduction of early CR (E-CR) in Japan are not fully understood. In this study, the current status of E-CR and its efficacy were investigated by the Academic Committee of the Japanese Association of Cardiac Rehabilitation. We examined the rate of introduction of E-CR and its effects among 220,122 patients who underwent major cardiac and thoracic vascular surgery, as registered in the Diagnosis Procedure Combination (DPC) classification system, between April 2012 and March 2018.

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