Publications by authors named "Kito S"

Objectives: This study aimed to measure the volume of the third cervical vertebra using head and neck multi-detector computed tomography (MDCT) and establish a sex determination model based on sex differences in volume.

Methods: Head and neck CT images of 85 patients were obtained for dental diagnostic and therapeutic purposes. Digital Imaging and Communications in Medicine (DICOM) data obtained from head and neck CT were constructed using a three-dimensional image analysis software.

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The objective of this study was to reveal the effectiveness of repetitive transcranial magnetic stimulation (rTMS) for Japanese patients with treatment-resistant depression (TRD) in clinical practice, based on real-world data from a nationwide multicenter observational study in Japan. Clinical data of patients with TRD treated with rTMS (NeuroStar TMS treatment system) under public insurance coverage were retrospectively collected from 21 institutes nationwide between June 2019 and December 2023. Depression severity was assessed by the 17-item Hamilton Depression Rating Scale (HAMD-17).

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Aim: This study aimed to elucidate the effects of repetitive transcranial magnetic stimulation (rTMS) on weight, body mass index (BMI), and lipid metabolism in patients with treatment-resistant depression (TRD).

Methods: This retrospective observational study included patients with TRD who received rTMS treatment at the Jikei University Hospital from September 2018 to August 2021. The patients were diagnosed based on the DSM-5 and ICD-10 criteria and treated using the NeuroStar TMS System.

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Background: To identify risk factors for mental distress and investigate whether the factors were different between men and women during the coronavirus disease 2019 (COVID-19), using KOKOROBO data, which is an online platform that aims to facilitate access to mental health services.

Methods: We used baseline data on KOKOROBO users 13 years of age or older in Japan who accessed it from October 11, 2021, to April 6, 2023, excluding those receiving treatment for mental health problems. Global severity, based on the most severe measure on Patient Health Questionnaire-9 (PHQ-9), Generalized Anxiety Disorder-7 (GAD-7), and Insomnia Severity Index (ISI), was analyzed using multivariable logistic regression with baseline characteristics for each gender, and for under 30 and 30 years of age or older in women.

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Prepubertal animals are often preferred as sources of oocytes for assisted reproductive technologies (ARTs) in laboratory mice, but the normality and developmental competence of these oocytes remain controversial. This study systematically examined in vitro fertilization competence, embryo development, and fetal development after embryo transfer (ET) using oocytes from C57BL/6J mice aged 3 to 10 weeks. Oocytes were collected from superovulated females, fertilized, and cultured in vitro for 96 h or transferred at 2-cell stage to recipient females.

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Importance: To date, several theta burst stimulation (TBS) protocols, such as intermittent TBS (iTBS), have been proposed; however, previous systematic reviews have revealed inconsistent efficacy findings in individual TBS studies for schizophrenia.

Objective: To examine which TBS protocols are associated with the most favorable and acceptable outcomes in adults with schizophrenia.

Data Sources: The Cochrane Library, PubMed, and Embase databases were searched for studies published before May 22, 2024.

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In planning the treatment of spinal metastases using stereotactic body radiotherapy (SBRT), the optimal blocking of the spinal cord to match the leaf travel can be achieved with a first-arc collimator angle of approximately 90°. We aim to clarify the optimal second-arc collimator angles when the first-arc collimator angle is fixed to 90° in dual-arc volumetric modulated arc therapy (VMAT). For this retrospective study, we considered 37 spinal segments with spinal metastases and created dual-arc VMAT plans.

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Background: Delusional ideations, one of neuropsychiatric symptoms (NPSs), are frequently shown in the long-term progression of Alzheimer's disease (AD), and comorbid with other NPSs including depression or agitation. Despite various types of delusional ideations, the comorbidity between each delusional ideation and depressive symptoms has not been discussed.

Objective: The present cross-sectional study is aimed at testing the hypothetical mechanism of comorbid pattern in AD.

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The aim of this scoping review was to synthesize published studies and ongoing clinical trials of psychological interventions for mental health problems associated with COVID-19 infection. The study protocol was developed according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) Extension for Scoping Reviews. We conducted systematic searches for studies published or registered between January 2020 and October 2022 using eight scientific databases and clinical trial registries, which identified 40 complete published studies and 53 ongoing clinical trials.

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Introduction: The clinical efficacy of repetitive transcranial magnetic stimulation (rTMS) for treatment-resistant depression (TRD) in Japan has not been adequately investigated. Furthermore, the relationship between stimulation-site pain and the antidepressant effects of rTMS has not been thoroughly examined. Therefore, this study aimed to clarify (1) the real-world efficacy and safety of rTMS for TRD in Japan and (2) the relationship between stimulation-site pain and clinical improvement of depressive symptoms.

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Article Synopsis
  • - Theta burst stimulation (TBS) is studied as a more efficient and effective alternative to traditional repetitive transcranial magnetic stimulation (rTMS) for treating depression, allowing for greater stimulus delivery in shorter sessions.
  • - A systematic review examined various TBS protocols in 23 randomized controlled trials involving 960 participants, with a focus on response rates, symptom improvement, and remission, finding significant advantages for certain TBS combinations.
  • - The analysis revealed that cTBS combined with iTBS and iTBS targeting the left-DLPFC showed the highest improvement rates, while none of the TBS methods significantly increased the risk of side effects like discontinuation or transitioning to mania compared to sham treatments.
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Background: Obsessive slowness, a symptom of obsessive-compulsive disorder (OCD), is characterized by compulsive behavior and significant slowness of movement. Primary obsessive slowness (POS) is defined as a condition in which a series of actions are segmented, and the patient spends an unlimited amount of time performing each action while checking each action, resulting in cessation or slowness of movement. It is often difficult to treat POS with exposure and response prevention, which is considered effective in general OCD, and no treatment has been established.

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Controlling the ion velocity in an ion sheath by applying an alternating current (AC) voltage to an electrode and/or a substrate is critical in plasma material processes. To externally control the velocity distribution of incident ions on a substrate, the application of tailored-waveform AC voltages instead of sinusoidal voltages has garnered interest in recent years. In this study, to investigate temporal changes in ion-velocity distributions, we developed a time-resolved laser-induced fluorescence spectroscopy (LIF) system using a continuous-wave diode laser as an excitation-laser source.

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Purpose: Stereotactic body radiotherapy (SBRT) boost is a promising treatment for cervical cancer patients who are ineligible for intracavitary brachytherapy (ICBT). The aim of this multicenter, single-arm, phase I/II study was to prospectively evaluate the efficacy and toxicity of SBRT boost.

Materials And Methods: ICBT-ineligible patients with untreated cervical cancer were enrolled.

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Article Synopsis
  • FMEA (Failure Mode and Effects Analysis) is gaining traction in radiotherapy for its effectiveness in preventing errors and can be carried out by individuals or groups online.
  • A web-based FMEA risk analysis worksheet was developed using Google tools to make it more accessible and user-friendly for various purposes.
  • The worksheet proved effective for both individual and group settings, allowing simultaneous online editing and automation to streamline the analysis process, ultimately enhancing collaboration and safety.
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  • Previous plan competitions primarily assessed dose metrics, but the actual quality assurance (QA) aspects of submitted plans were uncertain.
  • This study aimed to explore the relationship between plan complexity metrics (PCMs) in volumetric modulated arc therapy (VMAT) competition plans and clinically verified treatment plans through patient-specific QA.
  • The findings indicated that while there was a weak correlation between dose distribution quality and PCMs, high-quality competition plans showed increased complexity, suggesting that the submitted plans can be considered realistic and reasonable from a QA perspective.
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  • - This study is the first to investigate imaging doses in radiotherapy planning computed tomography (RTCT) in Japan, aiming to establish baseline data for national diagnostic reference levels (DRLs).
  • - A survey sent to RT institutions collected data on various imaging parameters and techniques, resulting in 328 responses that highlight differences in imaging doses among different treatments.
  • - The findings indicate that institutions using auto exposure image control (AEC) or image-improving reconstruction options (IIRO) report lower dose values, and specific techniques for lung treatments show varying dose lengths, contributing to future efforts to reduce imaging doses in Japan.
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Repetitive transcranial magnetic stimulation (rTMS) for patients with treatment-resistant depression (TRD) became covered by the National Health Insurance (NHI) in Japan since 2019. Although the evidence of rTMS for TRD is well established, the cost-effectiveness of rTMS versus antidepressants has not been thoroughly analyzed in Japan. Thus, we aimed to evaluate the cost-effectiveness of rTMS for TRD under the NHI system using a microsimulation model to compare the direct costs and quality-adjusted life years (QALYs).

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Background/aim: The COVID-19 pandemic led to the rapid spread of the use of ultraviolet C (UVC) sterilizers in many public facilities. Considering the harmful effects of prolonged exposure to UVC, manufacturing of safe skin care products is an important countermeasure. In continuation of our recent study of water-soluble herbal extracts, the present study aimed at searching for anti-UVC components from fat-soluble herbal extracts.

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Background: The clinical usefulness of cognitive behavioral therapy (CBT) for patients with depression who do not remit with pharmacotherapy has been recognized. However, the longer time burden on health care providers associated with conducting CBT and the lack of a system for providing CBT lead to inadequate CBT provision to patients who wish to receive it.

Objective: We aim to evaluate the feasibility of introducing virtual reality (VR) into CBT for patients with depression.

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Article Synopsis
  • The study focused on managing radiation doses from a portable dental panoramic radiography system by measuring scattered radiation levels.
  • Using the LPX7007 system and various phantoms, the research assessed radiation exposure at different angles and heights.
  • Results indicated higher radiation doses at 120° and 240° angles, suggesting safety can be improved by maintaining distance and avoiding certain positions relative to the machine.
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Article Synopsis
  • A meta-analysis found that intermittent theta burst stimulation (iTBS) and high-frequency repetitive transcranial magnetic stimulation (HF-rTMS) are equally effective and safe for treating treatment-resistant major depressive disorder (AD-TRD).
  • Even when excluding studies focused on older adults, iTBS and HF-rTMS showed similar efficacy outcomes.
  • iTBS may be a preferable treatment method since it requires less stimulation intensity and shorter treatment time compared to HF-rTMS.
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The objective of this study was to study the dose reduction effect on occupational exposure of operators and public exposure other than operators when a backscatter shield and a rectangular collimator are used in conjunction with a handheld intraoral X-ray unit. The occupational exposure was reduced to 40% when the backscatter shield was attached to the cone-tip, to 13% when the rectangular collimator was attached and to 7.7% when the backscatter shield and rectangular collimator were used together.

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