1.Side- and patient-based performance of a deep learning system based on the results of individual detection of carotid artery calcifications on panoramic radiographs
Yuta MITSUYA ; Chiaki KUWADA ; Sujin YANG ; Yoshitaka KISE ; Mizuho MORI ; Yukiko TAKASHI ; Masako NISHIYAMA ; Natsuho ISHIKAWA ; Munetaka NAITOH ; Eiichiro ARIJI
Imaging Science in Dentistry 2026;56(1):83-92
Purpose:
The present study aimed to develop 2 deep learning (DL) systems incorporating detection functions for the diagnosis of carotid artery calcifications (CACs) on panoramic radiographs and to compare their diagnostic performances using CAC-based, side-based, and patient-based evaluations.
Materials and Methods:
Panoramic radiographs from 290 patients with CACs and 290 control patients without CACs were used to develop 2 detection models: one designed to detect individual CACs across the entire radiograph (System 1) and another designed to detect CACs within the limited bilateral cervical areas (System 2). CAC-based performance was evaluated using recall, precision, and F1-score. Side-based and patient-based performances were assessed usingsensitivity, specificity, positive predictive value, negative predictive value, accuracy, and the area under the receiveroperating characteristic curve (AUC).
Results:
For System 1, CAC-based recall, precision, and F1-score were 0.81, 0.68, and 0.74, respectively. For System 2,the corresponding values were 0.90, 0.67, and 0.77. Side-based sensitivity, specificity, and AUC were 0.87, 0.80, and 0.83 for System 1, and 0.93, 0.84, and 0.89 for System 2. Patient-based sensitivity, specificity, and AUC were 0.93, 0.73,and 0.83 for System 1, and 0.95, 0.70, and 0.83 for System 2. Although a relatively large number of false positives were observed in CAC-based assessments, side-based and patient-based performances showed improvement.
Conclusion
Side-based and patient-based performances were sufficient when calculated on the basis of CAC-basedevaluations for diagnosing CACs on panoramic radiographs. When conducting studies of this type, performance assessments should include side-based and patient-based evaluations in addition to CAC-based analyses.
2.Comparison of postoperative adjuvant platinum-based chemotherapy and no further therapy after radical surgery in intermediate-risk early-stage cervical cancer
Hiroki NISHIMURA ; Tsukuru AMANO ; Yutaka YONEOKA ; Shunichiro TSUJI ; Yukiko TAGA ; Megumi AKI ; Masaya UNO ; Suzuko MORITANI ; Ryusuke MURAKAMI ; Tomoyasu KATO ; Takashi MURAKAMI
Journal of Gynecologic Oncology 2025;36(1):e2-
Objective:
To identify a relatively high-risk population in postoperative intermediate-risk cervical cancer and evaluate the effect of platinum-based adjuvant chemotherapy (CT).
Methods:
We retrospectively reviewed the medical records of patients with stage IA2-IIA cervical cancer who had been treated with radical hysterectomy and pelvic lymphadenectomy and classified as the intermediate-risk group for recurrence by postoperative pathological examination from January 2007 to December 2018 at 3 medical centers in Japan. First, patients with intermediate-risk were stratified by histological type and the number of intermediaterisk factors (IRF; large tumor diameter, lymph vascular space invasion, and deep cervical stromal invasion) and then divided into 2 groups: high and low-risk population (estimated 5-year recurrence-free survival [RFS] rate with no further therapy [NFT] <90% and ≥90%, respectively). Second, the efficacy of CT for the high-risk population was evaluated by comparing RFS and overall survival (OS) between the patients receiving CT and those with NFT.
Results:
In total, 133 patients were included in the analysis. Among patients with squamous cell carcinoma (SCC) with all IRF or those with non-SCC with 2 to 3 IRF, the 5-year estimated RFS was <90% when treated with NFT. In this population, adjuvant CT was significantly superior to NFT regarding RFS (log-rank, p=0.014), although there was no statistical difference in OS.
Conclusion
Patients with SCC with all 3 IRFs and those with non-SCC with 2 to 3 IRFs were at high risk for recurrence. Adjuvant CT is a valid treatment option for these populations.
3.Comparison of postoperative adjuvant platinum-based chemotherapy and no further therapy after radical surgery in intermediate-risk early-stage cervical cancer
Hiroki NISHIMURA ; Tsukuru AMANO ; Yutaka YONEOKA ; Shunichiro TSUJI ; Yukiko TAGA ; Megumi AKI ; Masaya UNO ; Suzuko MORITANI ; Ryusuke MURAKAMI ; Tomoyasu KATO ; Takashi MURAKAMI
Journal of Gynecologic Oncology 2025;36(1):e2-
Objective:
To identify a relatively high-risk population in postoperative intermediate-risk cervical cancer and evaluate the effect of platinum-based adjuvant chemotherapy (CT).
Methods:
We retrospectively reviewed the medical records of patients with stage IA2-IIA cervical cancer who had been treated with radical hysterectomy and pelvic lymphadenectomy and classified as the intermediate-risk group for recurrence by postoperative pathological examination from January 2007 to December 2018 at 3 medical centers in Japan. First, patients with intermediate-risk were stratified by histological type and the number of intermediaterisk factors (IRF; large tumor diameter, lymph vascular space invasion, and deep cervical stromal invasion) and then divided into 2 groups: high and low-risk population (estimated 5-year recurrence-free survival [RFS] rate with no further therapy [NFT] <90% and ≥90%, respectively). Second, the efficacy of CT for the high-risk population was evaluated by comparing RFS and overall survival (OS) between the patients receiving CT and those with NFT.
Results:
In total, 133 patients were included in the analysis. Among patients with squamous cell carcinoma (SCC) with all IRF or those with non-SCC with 2 to 3 IRF, the 5-year estimated RFS was <90% when treated with NFT. In this population, adjuvant CT was significantly superior to NFT regarding RFS (log-rank, p=0.014), although there was no statistical difference in OS.
Conclusion
Patients with SCC with all 3 IRFs and those with non-SCC with 2 to 3 IRFs were at high risk for recurrence. Adjuvant CT is a valid treatment option for these populations.
4.Comparison of postoperative adjuvant platinum-based chemotherapy and no further therapy after radical surgery in intermediate-risk early-stage cervical cancer
Hiroki NISHIMURA ; Tsukuru AMANO ; Yutaka YONEOKA ; Shunichiro TSUJI ; Yukiko TAGA ; Megumi AKI ; Masaya UNO ; Suzuko MORITANI ; Ryusuke MURAKAMI ; Tomoyasu KATO ; Takashi MURAKAMI
Journal of Gynecologic Oncology 2025;36(1):e2-
Objective:
To identify a relatively high-risk population in postoperative intermediate-risk cervical cancer and evaluate the effect of platinum-based adjuvant chemotherapy (CT).
Methods:
We retrospectively reviewed the medical records of patients with stage IA2-IIA cervical cancer who had been treated with radical hysterectomy and pelvic lymphadenectomy and classified as the intermediate-risk group for recurrence by postoperative pathological examination from January 2007 to December 2018 at 3 medical centers in Japan. First, patients with intermediate-risk were stratified by histological type and the number of intermediaterisk factors (IRF; large tumor diameter, lymph vascular space invasion, and deep cervical stromal invasion) and then divided into 2 groups: high and low-risk population (estimated 5-year recurrence-free survival [RFS] rate with no further therapy [NFT] <90% and ≥90%, respectively). Second, the efficacy of CT for the high-risk population was evaluated by comparing RFS and overall survival (OS) between the patients receiving CT and those with NFT.
Results:
In total, 133 patients were included in the analysis. Among patients with squamous cell carcinoma (SCC) with all IRF or those with non-SCC with 2 to 3 IRF, the 5-year estimated RFS was <90% when treated with NFT. In this population, adjuvant CT was significantly superior to NFT regarding RFS (log-rank, p=0.014), although there was no statistical difference in OS.
Conclusion
Patients with SCC with all 3 IRFs and those with non-SCC with 2 to 3 IRFs were at high risk for recurrence. Adjuvant CT is a valid treatment option for these populations.
5.Study on Adherence and Safety of Patients Taking Molnupiravir Capsules
Yukiko FUKUDA ; Kouichi HOSOMI ; Shouhei OKANO ; Takahiro YAMAGUCHI ; Hirohisa SHINDOU ; Daichi OKUDA ; Takashi MURATA
Japanese Journal of Social Pharmacy 2024;43(1):40-47
To assess the safety of molnupiravir capsules (MOV) and the adherence of patients taking these capsules, we conducted a survey of patients who were dispensed MOV at the Maruzen Pharmacy from January 1st to September 30th, 2022. In the survey, a sample of 134 patients were requested to complete a questionnaire, from whom we received 56 responses (response rate: 41.8%). Among the respondents, 11 (19.6%) failed to complete their medication, and those aged 60 years or older tended to have poor adherence (P<0.001). Apart from age, we detected no statistical differences with respect to other assessed factors (gender, capsule size, occurrence of side effects, and evaluation of pharmacist’s explanations). Side effects were reported by 11 individuals (19.6%) taking the drug, although these were mainly consistent with those that have been reported in clinical trials. In addition, 20 individuals (35.7%) experienced COVID-19 after-effects after taking MOV. When requested to evaluate pharmacies and pharmacists, five individuals (8.9%) reported feeling dissatisfied. Although the results obtained in this survey are based on a limited number of patients, they do reveal a concerning lack of adherence among patients over 60 years of age; and there are needs for future improvements in the size of MOV capsules.
6.The Significance of New Chapter of Traditional Medicine in the Eleventh Revision of the International Statistical Classification of Diseases and Related Health Problems (ICD-11)
Takashi ITO ; Mika WATARI ; Munenori SAITO ; Takayuki HOSHINO ; Yukiko YOKOBORI ; Shuji YAKUBO ; Ikuro WAKAYAMA
Kampo Medicine 2021;72(4):461-472
A commemorative lecture meeting on the inclusion of a new chapter of traditional medicine in ICD-11 was held in Tokyo in February 2020. The head of the Collaborating Centre for WHO-FIC in Japan explained the process of the project, which started in 2006 to increase WHO's data collection from developing countries and expressed gratitude to the concerned persons who made efforts to obtain consensus with China and Korea. WHO promoted integrated coding between traditional medicine and Western medicine. In the field of acupuncture, meridian and collateral patterns proposed by Japan were adopted and research activities have begun. In the field of Kampo medicine, the prescription content is often used in a fixed form as a representative formula pattern in Japan, so clinically high-level research will be possible under this new classification. In the field of medical information, it has been pointed out that there are high hurdles for medical information managers to understand traditional medicine. It is expected that the progress of mutual understanding of both medicines. From now on, activities in research, translation, education and dissemination of this new classification should be promoted.
7.Associations of socioeconomic status and lifestyle factors with dental neglect of elementary school children: the MEXT Super Shokuiku School Project.
Yukiko ASAKA ; Michikazu SEKINE ; Masaaki YAMADA ; Takashi TATSUSE
Environmental Health and Preventive Medicine 2020;25(1):73-73
BACKGROUND:
Despite the fact that there are parents who do not take children with untreated dental caries to a dental clinic, few studies have been conducted to identify the responsible underlying social and family factors. The aim of this study was to investigate whether socioeconomic status and lifestyle factors are associated with dental neglect in elementary school children.
METHODS:
This study was conducted in 2016 with 1655 children from the Super Shokuiku School Project in Toyama. Using Breslow's seven health behaviors, the survey assessed: the grade, sex, and lifestyle of the children; parental internet and game use and lifestyle; socioeconomic status. The odds ratios (OR) and 95% confidence intervals (CIs) for having untreated dental caries were calculated using logistic regression analysis.
RESULTS:
Among the children participating, 152 (3.2%) had untreated dental caries. Among them, 53 (34.9%) had not been taken to a dental clinic despite the school dentist's advice. Dental neglect was significantly associated with children in higher grades (OR, 2.08; 95% CI, 1.14-3.78), father's Internet and game use ≥ 2 h/day (OR, 1.99; 95% CI, 1.02-3.88), not being affluent (OR, 2.78; 95% CI, 1.14-6.81), and non-engagement in afterschool activities (OR, 1.99; 95% CI, 1.10-3.62).
CONCLUSIONS
Socioeconomic status was the strongest factor associated with dental neglect despite the fact that the children's medical expenses are paid in full by the National Health Insurance in Toyama, Japan. Future studies should investigate what factors prevent parents of non-affluent families from taking their children to dental clinics and how they can be socially supported to access adequate medical care.
Age Factors
;
Child
;
Dental Caries/psychology*
;
Female
;
Humans
;
Japan/epidemiology*
;
Life Style
;
Male
;
Prevalence
;
Social Class
8.Association between lifestyle, parental smoke, socioeconomic status, and academic performance in Japanese elementary school children: the Super Diet Education Project.
Masaaki YAMADA ; Michikazu SEKINE ; Takashi TATSUSE ; Yukiko ASAKA
Environmental Health and Preventive Medicine 2019;24(1):22-22
BACKGROUND:
Health and education are closely linked. However, few studies have explored the correlates of children's academic performance in Japan. We aimed to investigate comprehensively the associations of low academic performance among school children with lifestyles, parental smoke, and socioeconomic status.
METHODS:
In 2016, children aged 6 to 13 years from the Super Diet Education School Project were surveyed using questionnaires. The survey explored the lifestyles and subjective academic performance of 1663 children and asked their parents about parental smoke and subjective socioeconomic status. Academic performance and socioeconomic status were divided into three levels. Then, we defined subjective academic performance in the lower two levels as low academic performance. The odds ratios (OR) were analyzed by logistic regression analysis.
RESULTS:
Among all participants, 299 (18.0%) children reported low academic performance. In general, low academic performance was significantly associated with late wakeup time (OR = 1.36 for 6:30 to < 7 a.m. and OR = 2.48 for ≥ 7 a.m.), screen time ≥ 2 h (OR = 1.35), studying at home < 1 h (OR = 1.82), paternal smoke (OR = 1.47), maternal smoke (OR = 1.87), and low socioeconomic status (OR = 1.48). Analyses stratified by grade showed stronger associations between academic performance and socioeconomic status in senior (OR = 1.62 for middle, OR = 1.52 for low in grades 4 to 6) than in junior children (OR = 1.15 for middle, OR = 1.38 for low in grades 1 to 3).
CONCLUSIONS
Children's lifestyles, parental smoke, and socioeconomic status were significantly associated with low academic performance among Japanese children. Parents and health care providers should take these findings into consideration to prevent children from having low academic performance.
Academic Performance
;
statistics & numerical data
;
Adolescent
;
Child
;
Cross-Sectional Studies
;
Female
;
Health Surveys
;
Humans
;
Japan
;
Life Style
;
Male
;
Parents
;
Risk Factors
;
School Health Services
;
statistics & numerical data
;
Smoke
;
adverse effects
;
Social Class
9.Establishment of Team Approach to Removal of Aspiration Objects at Time of Video fluoroscopic Examination of Swallowing and These Progress
Mayu MATSUOKA ; Kyoko NAKANISHI ; Minako SAITO ; Yukiko ITO ; Takashi SUZUKI ; Taku FUDEYA ; Mitsuru YASUE ; Shigeki HIRAO ; Hirotaka WATABE
Journal of the Japanese Association of Rural Medicine 2013;62(1):41-49
The removal of aspiration objects is often required for aspiration, which takes place at the time of a video fluoroscopic examination of swallowing (VF) for the assessment of dysphagia rehabilitation. We report our approach against correspondence for aspiration at VF. As subjects for this report, we sampled 6 patients (average age: 78.3±3.0, four males and two females) from 19 patients, who had aspiration of barium sulfate or meal with barium contrast medium at the time of VF form October 1, 2009, to March 31, 2011. For the first step of correspondence for aspiration at VF, we dealt with coughing, huffing, suction and postural drainage under the guidance of a Speech-Language-Hearing Therapist and, depending on the case, a Physical Therapist who dealt with chest physical therapy. When expectoration was found impossible, we checked to see if it was necessary to perform biphasic cuirass ventilation with a clinical engineer. We assessed the chest X-ray films and existence or non-existence of expectoration immediately after aspiration, and fever, inflammatory response, respiratory symptoms and gastrointestinal symptoms one week after the examination, and retrospectively checked the influence of aspiration. As a result, three patients had residue as revealed on chest X-ray films, and the three remaining patients had none. For the former three patients, we intervened in a team approach and succeeded in removing the residue from two patients (one with initial correspondence, and the other with execution by the Physical Therapist). Though two patients had fever and inflammatory response one week later, It was hardly possible that aspiration at the time of VF became a direct cause. No patient had either the respiratory or gastrointestinal symptom. Correspondence for aspiration was attained by establishing a team approach system. Even if a patient had heavy aspiration, it was not reflected on chest X-ray films, depending on the case, and therefore deliberation was required for correspondence.
10.The report of the palliative care cooperation in Tsurumi ward, Yokohama city aiming at reducing the number of “cancer refugees”, who can't find the place they receive the palliative care, to “zero”
Osamu Takahashi ; Toshihiko Katou ; Michiko Hayashi ; Kazuko Shimizu ; Yasuko Chiba ; Akimi Shirahama ; Takamichi Kubokura ; Keigo Sasaki ; Atushi Nagashima ; Takashi Hara ; Yukiko Kurihara
Palliative Care Research 2013;8(2):901-906
Introduction: We perform our trials in Tsurumi ward, Yokohama city aiming at reducing the number of “cancer refugees” to zero. State: There are many patients who receive cancer therapy outside their hometown. Once their treatment is finished due to progressive disease or deteriorating condition, they are told to leave the hospital and to get palliative care in their district. And they become so-called “cancer refugees”. The beds of palliative care units are limited so the ability to accept patients in case of emergencies is poor. In Tsurumi ward, here are a lot of home care clinics providing palliative care but the place patients want to be or receive palliative care when their condition deteriorates isn't fixed. We organized the “Tsurumi Homecare Network” as the core of medical cooperation, and have worked on improving palliative care and increasing patients who die at home. Specifically, our hospital has played a central role as a special place for palliative care, we send out our original questionnaire to home care clinics to find out how they perform palliative care and introduce patients to the appropriate clinic. Patients who are in need of hospitalization are assured acceptance. On the other hand, we propose the cancer treatment hospitals to follow their patients together with us from their early stage of cancer treatment. Problem: To maintain a good relationship for regional palliative care, improving the management for outpatients, strict and timely backup system, advanced quality of homecare-supporting staff for palliative care and cooperation between home care clinic doctors are necessary.


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