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  1. Article ; Online: Spontaneous spinal subarachnoid haemorrhage and subdural haematoma upon customary bowing: a case report.

    Hong, Ji Hyun

    British journal of neurosurgery

    2020  Volume 37, Issue 3, Page(s) 343–344

    Abstract: Spinal subarachnoid haemorrhage is a rare clinical condition, and a spinal subarachnoid haemorrhage associated with subdural haematoma is extremely infrequent. Iatrogenic causes such as trauma and lumbar puncture, coagulopathy, arteriovenous malformation, ...

    Abstract Spinal subarachnoid haemorrhage is a rare clinical condition, and a spinal subarachnoid haemorrhage associated with subdural haematoma is extremely infrequent. Iatrogenic causes such as trauma and lumbar puncture, coagulopathy, arteriovenous malformation, spinal artery aneurysm, vasculitis or neoplasm are known predisposing factors. Minor effort or trauma can be a cause of spontaneous spinal subarachnoid haemorrhage. Herein, we report a rare case of spontaneous spinal subarachnoid haemorrhage and subdural haematoma that occurred when the patient engaged in a kneeling bow on the floor.
    MeSH term(s) Humans ; Subarachnoid Hemorrhage/diagnostic imaging ; Subarachnoid Hemorrhage/etiology ; Subarachnoid Hemorrhage/surgery ; Hematoma, Subdural/diagnostic imaging ; Hematoma, Subdural/etiology ; Hematoma, Subdural/surgery ; Spinal Puncture ; Arteriovenous Malformations ; Arteries
    Language English
    Publishing date 2020-04-29
    Publishing country England
    Document type Case Reports ; Journal Article
    ZDB-ID 639029-8
    ISSN 1360-046X ; 0268-8697
    ISSN (online) 1360-046X
    ISSN 0268-8697
    DOI 10.1080/02688697.2020.1759778
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Non-small cell lung cancer disparities in stage at presentation and treatment for Asian American, Native Hawaiian, and Pacific Islander women.

    Hong, Ji Hyun / Swami, Nishwant / Dee, Edward Christopher / Gomez, Scarlett Lin / Lam, Miranda B

    Journal of surgical oncology

    2023  Volume 127, Issue 5, Page(s) 882–890

    Abstract: Background and objectives: Asian Americans, Native Hawaiians, and Pacific Islanders (AANHPI) represent the fastest-growing group in the United States. While described in aggregate, great variations exist within the community. We aimed to determine ... ...

    Abstract Background and objectives: Asian Americans, Native Hawaiians, and Pacific Islanders (AANHPI) represent the fastest-growing group in the United States. While described in aggregate, great variations exist within the community. We aimed to determine whether there were differences in stage at presentation and treatment status among AANHPI women with non-small cell lung cancer (NSCLC).
    Methods: Between 2004 and 2016, we identified 522 361 female patients with newly diagnosed NSCLC from the National Cancer Database. Multivariable logistic regression models were used to define adjusted odds ratios (aORs) of presenting with stage IV disease and not receiving treatment.
    Results: AANHPI women were more likely to present with stage IV disease compared to White (54.32% vs. 40.28%, p < 0.001). Aside from Hawaiian, Pakistani, and Hmong women, all other ethnic groups had greater odds of presenting with stage IV disease than White women. AANHPI women <65 years were more likely to present with stage IV disease (p = 0.030). Only Vietnamese women showed a significant difference (aOR = 1.30 [1.06-1.58], p = 0.010) for likelihood of receiving treatment compared to White.
    Conclusions: Differences in stage at presentation and treatment status in women with NSCLC were observed among AANHPI ethnic groups when populations were disaggregated.
    MeSH term(s) Female ; Humans ; Carcinoma, Non-Small-Cell Lung/etiology ; Carcinoma, Non-Small-Cell Lung/therapy ; Lung Neoplasms/ethnology ; Lung Neoplasms/therapy ; United States/epidemiology ; Asian American Native Hawaiian and Pacific Islander ; Health Status Disparities ; Healthcare Disparities
    Language English
    Publishing date 2023-01-31
    Publishing country United States
    Document type Journal Article
    ZDB-ID 82063-5
    ISSN 1096-9098 ; 0022-4790
    ISSN (online) 1096-9098
    ISSN 0022-4790
    DOI 10.1002/jso.27204
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  3. Article ; Online: Emphysematous osteomyelitis of spine.

    Ko, Il Kwon / Hong, Ji Hyun

    British journal of neurosurgery

    2019  Volume 37, Issue 3, Page(s) 292–293

    MeSH term(s) Humans ; Spine/diagnostic imaging ; Spine/surgery ; Osteomyelitis/diagnostic imaging ; Osteomyelitis/surgery
    Language English
    Publishing date 2019-10-18
    Publishing country England
    Document type Journal Article
    ZDB-ID 639029-8
    ISSN 1360-046X ; 0268-8697
    ISSN (online) 1360-046X
    ISSN 0268-8697
    DOI 10.1080/02688697.2019.1678739
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Tumor grade in soft-tissue sarcoma: Prediction with magnetic resonance imaging texture analysis.

    Hong, Ji Hyun / Jee, Won-Hee / Jung, Chan-Kwon / Chung, Yang-Guk

    Medicine

    2020  Volume 99, Issue 27, Page(s) e20880

    Abstract: To determine the value of 3T magnetic resonance imaging (MRI) texture analysis in differentiating high- from low-grade soft-tissue sarcoma.Forty-two patients with soft-tissue sarcomas who underwent 3T MRI were analyzed. Qualitative and texture analysis ... ...

    Abstract To determine the value of 3T magnetic resonance imaging (MRI) texture analysis in differentiating high- from low-grade soft-tissue sarcoma.Forty-two patients with soft-tissue sarcomas who underwent 3T MRI were analyzed. Qualitative and texture analysis were performed on T1-, T2- and fat-suppressed contrast-enhanced (CE) T1-weighted images. Various features of qualitative and texture analysis were compared between high- and low-grade sarcoma. Areas under the receiver operating characteristic curves (AUC) were calculated for texture features. Multivariate logistic regression analysis was used to analyze the value of qualitative and texture analysis.There were 11 low- and 31 high-grade sarcomas. Among qualitative features, signal intensity on T1-weighted images, tumor margin on T2-weighted images, tumor margin on fat-suppressed CE T1-weighted images and peritumoral enhancement were significantly different between high- and low-grade sarcomas. Among texture features, T2 mean, T1 SD, CE T1 skewness, CE T1 mean, CE T1 difference variance and CE T1 contrast were significantly different between high- and low-grade sarcomas. The AUCs of the above texture features were > 0.7: T2 mean, .710 (95% confidence interval [CI] .543-.876); CE T1 mean, .768 (.590-.947); T1 SD, .730 (.554-.906); CE T1 skewness, .751 (.586-.916); CE T1 difference variance, .721 (.536-.907); and CE T1 contrast, .727 (.530-.924). The multivariate logistic regression model of both qualitative and texture features had numerically higher AUC than those of only qualitative or texture features.Texture analysis at 3T MRI may provide additional diagnostic value to the qualitative MRI imaging features for the differentiation of high- and low-grade sarcomas.
    MeSH term(s) Adolescent ; Adult ; Aged ; Aged, 80 and over ; Female ; Humans ; Image Processing, Computer-Assisted/methods ; Magnetic Resonance Imaging/methods ; Male ; Middle Aged ; Neoplasm Grading ; Pattern Recognition, Automated ; Sarcoma/diagnostic imaging ; Sarcoma/pathology ; Soft Tissue Neoplasms/diagnostic imaging ; Soft Tissue Neoplasms/pathology ; Young Adult
    Keywords covid19
    Language English
    Publishing date 2020-07-06
    Publishing country United States
    Document type Journal Article
    ZDB-ID 80184-7
    ISSN 1536-5964 ; 0025-7974
    ISSN (online) 1536-5964
    ISSN 0025-7974
    DOI 10.1097/MD.0000000000020880
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Tenosynovial giant cell tumor of the upper cervical spine arising from the posterior atlanto-occipital membrane: a case report.

    Kim, Yun Ji / Hong, Ji Hyun / Park, Jong Hwa / Cho, Seong Jin

    Skeletal radiology

    2020  Volume 50, Issue 2, Page(s) 451–455

    Abstract: A tenosynovial giant cell tumor is a benign proliferative disease, mostly arising from the synovial membrane of tendon sheaths, bursae, and joints. Axial skeleton involvement is very rare, but it is often found in the cervical spine. Spinal tenosynovial ... ...

    Abstract A tenosynovial giant cell tumor is a benign proliferative disease, mostly arising from the synovial membrane of tendon sheaths, bursae, and joints. Axial skeleton involvement is very rare, but it is often found in the cervical spine. Spinal tenosynovial giant cell tumors often arise at the facet joints; a completely extra-articular spinal tenosynovial giant cell tumor is rare. We report an extremely rare case of tenosynovial giant cell tumor in the upper cervical spine that extended from the posterior atlanto-occipital membrane rather than the facet joint. Herein, the clinical and radiological findings will be reviewed to better our understanding of the characteristics of spinal tenosynovial giant cell tumors, and to help improve their diagnosis despite their non-typical locations of origin.
    MeSH term(s) Cervical Vertebrae/diagnostic imaging ; Cervical Vertebrae/surgery ; Giant Cell Tumor of Tendon Sheath ; Giant Cell Tumors/diagnostic imaging ; Giant Cell Tumors/surgery ; Humans ; Neck ; Synovial Membrane/diagnostic imaging ; Zygapophyseal Joint
    Language English
    Publishing date 2020-08-07
    Publishing country Germany
    Document type Case Reports ; Journal Article
    ZDB-ID 527592-1
    ISSN 1432-2161 ; 0364-2348
    ISSN (online) 1432-2161
    ISSN 0364-2348
    DOI 10.1007/s00256-020-03569-8
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: Lymphangitis Carcinomatosa in Neck Soft Tissue: Computed Tomography Findings With Emphasis on Differentiation From Cellulitis.

    Kim, Dae Geun / Yoon, Dae Young / Hong, Ji Hyun / Moon, Ji Yoon / Yun, Eun Joo / Kim, Eun Soo / Lee, Yul

    Journal of computer assisted tomography

    2022  Volume 46, Issue 1, Page(s) 140–144

    Abstract: Objective: Lymphangitis carcinomatosa (LC) is a rare form of metastasis. The purposes of this study were to evaluate computed tomography (CT) findings associated with LC in neck soft tissue and to determine those that were useful in distinguishing LC ... ...

    Abstract Objective: Lymphangitis carcinomatosa (LC) is a rare form of metastasis. The purposes of this study were to evaluate computed tomography (CT) findings associated with LC in neck soft tissue and to determine those that were useful in distinguishing LC from cellulitis.
    Methods: Contrast-enhanced CT images of 26 patients with pathologically confirmed LC (n = 5) and clinically proven cellulitis (n = 21) were reviewed retrospectively. The following CT findings were evaluated and compared between the 2 groups: subcutaneous fat infiltration, enlargement of muscle, thick irregular enhancement of the superficial cervical fascia, grouping of micronodules, focal intramuscular enhancement, localized fluid collection, and nodular skin thickening.
    Results: Thick irregular enhancement of the superficial cervical fascia (80.0% vs 0%, P < 0.0005), grouping of micronodules (60.0% vs 0%, P < 0.005), and focal intramuscular enhancement (60.0% vs 4.8%, P < 0.05) were significantly more frequent in LC than in cellulitis. Other findings did not show statistical significance between both groups.
    Conclusions: When soft tissue swelling is present in the neck with either thick irregular enhancement of the superficial cervical fascia, grouping of micronodules, or focal intramuscular enhancement, the possibility of LC should be considered especially in patients with underlying malignancy.
    MeSH term(s) Adult ; Aged ; Aged, 80 and over ; Carcinoma/diagnostic imaging ; Carcinoma/pathology ; Cellulitis/diagnostic imaging ; Cellulitis/pathology ; Diagnosis, Differential ; Female ; Humans ; Lymphangitis/diagnostic imaging ; Lymphangitis/pathology ; Lymphatic Metastasis/diagnostic imaging ; Lymphatic Metastasis/pathology ; Male ; Middle Aged ; Neck/diagnostic imaging ; Neck/pathology ; Retrospective Studies ; Tomography, X-Ray Computed ; Young Adult
    Language English
    Publishing date 2022-01-31
    Publishing country United States
    Document type Journal Article
    ZDB-ID 80392-3
    ISSN 1532-3145 ; 0363-8715
    ISSN (online) 1532-3145
    ISSN 0363-8715
    DOI 10.1097/RCT.0000000000001234
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: Importance of lymph node ratio in HPV-related oropharyngeal cancer patients treated with surgery and adjuvant treatment.

    Choi, Kyu Hye / Song, Jin Ho / Hong, Ji Hyun / Lee, Youn Soo / Kang, Jin Hyoung / Sun, Dong-Il / Kim, Min-Sik / Kim, Yeon-Sil

    PloS one

    2022  Volume 17, Issue 8, Page(s) e0273059

    Abstract: Objectives: The pathologic nodal stage of human papillomavirus (HPV)-related oropharyngeal cancer (OPC) patients is classified according to the number of lymph nodes (LNs), as revised in 2018. Previous studies showed that the LN ratio (LNR) could be ... ...

    Abstract Objectives: The pathologic nodal stage of human papillomavirus (HPV)-related oropharyngeal cancer (OPC) patients is classified according to the number of lymph nodes (LNs), as revised in 2018. Previous studies showed that the LN ratio (LNR) could be also a significant prognostic factor in head and neck cancer, but there are few studies on the LNR in HPV-related [HPV(+)] OPC. The aim of the present study was to analyze the predictive value of the LNR for survival and recurrence in HPV(+) OPC patients.
    Materials and methods: HPV(+) OPC patients treated with surgery with or without postoperative radiotherapy from January 2000 to March 2019 were evaluated. The patients were divided into two sets of three groups, according to LN numbers based on pathologic nodal stages, and LNRs by a cutoff value of 0.05. The medical records were reviewed, and the overall survival (OS), disease-free survival, locoregional recurrence, and distant metastasis incidence were analyzed.
    Results: Ninty patients were included and the median follow-up period was 38.2 months. There were no significant differences in OS in the LN number groups. However, there was a significant difference in OS in the LNR groups (P = 0.010). The incidence of distant metastasis in the LNR groups was significantly different (P = 0.005).
    Conclusion: The LNR in HPV(+) OPC patients may be a more useful tool to predict survival and distant metastasis than the LN number. Additional research and consensus on surgical pathology are needed before applying the LNR to adjuvant treatment decisions and pathologic nodal staging.
    MeSH term(s) Alphapapillomavirus ; Humans ; Lymph Node Excision ; Lymph Node Ratio ; Lymph Nodes/pathology ; Lymphatic Metastasis/pathology ; Neoplasm Staging ; Oropharyngeal Neoplasms/pathology ; Oropharyngeal Neoplasms/surgery ; Papillomaviridae ; Papillomavirus Infections/pathology ; Prognosis ; Retrospective Studies
    Language English
    Publishing date 2022-08-12
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2267670-3
    ISSN 1932-6203 ; 1932-6203
    ISSN (online) 1932-6203
    ISSN 1932-6203
    DOI 10.1371/journal.pone.0273059
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  8. Article: Tumor grade in soft-tissue sarcoma: Prediction with magnetic resonance imaging texture analysis

    Hong, Ji Hyun / Jee, Won-Hee / Jung, Chan-Kwon / Chung, Yang-Guk

    Medicine (Baltimore)

    Abstract: To determine the value of 3T magnetic resonance imaging (MRI) texture analysis in differentiating high- from low-grade soft-tissue sarcoma.Forty-two patients with soft-tissue sarcomas who underwent 3T MRI were analyzed. Qualitative and texture analysis ... ...

    Abstract To determine the value of 3T magnetic resonance imaging (MRI) texture analysis in differentiating high- from low-grade soft-tissue sarcoma.Forty-two patients with soft-tissue sarcomas who underwent 3T MRI were analyzed. Qualitative and texture analysis were performed on T1-, T2- and fat-suppressed contrast-enhanced (CE) T1-weighted images. Various features of qualitative and texture analysis were compared between high- and low-grade sarcoma. Areas under the receiver operating characteristic curves (AUC) were calculated for texture features. Multivariate logistic regression analysis was used to analyze the value of qualitative and texture analysis.There were 11 low- and 31 high-grade sarcomas. Among qualitative features, signal intensity on T1-weighted images, tumor margin on T2-weighted images, tumor margin on fat-suppressed CE T1-weighted images and peritumoral enhancement were significantly different between high- and low-grade sarcomas. Among texture features, T2 mean, T1 SD, CE T1 skewness, CE T1 mean, CE T1 difference variance and CE T1 contrast were significantly different between high- and low-grade sarcomas. The AUCs of the above texture features were > 0.7: T2 mean, .710 (95% confidence interval [CI] .543-.876); CE T1 mean, .768 (.590-.947); T1 SD, .730 (.554-.906); CE T1 skewness, .751 (.586-.916); CE T1 difference variance, .721 (.536-.907); and CE T1 contrast, .727 (.530-.924). The multivariate logistic regression model of both qualitative and texture features had numerically higher AUC than those of only qualitative or texture features.Texture analysis at 3T MRI may provide additional diagnostic value to the qualitative MRI imaging features for the differentiation of high- and low-grade sarcomas.
    Keywords covid19
    Publisher WHO
    Document type Article
    Note WHO #Covidence: #32629676
    Database COVID19

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  9. Article: The Most Widely Disseminated COVID-19-Related Scientific Publications in Online Media: A Bibliometric Analysis of the Top 100 Articles with the Highest Altmetric Attention Scores.

    Moon, Ji Yoon / Yoon, Dae Young / Hong, Ji Hyun / Lim, Kyoung Ja / Baek, Sora / Seo, Young Lan / Yun, Eun Joo

    Healthcare (Basel, Switzerland)

    2021  Volume 9, Issue 2

    Abstract: The novel coronavirus disease 2019 (COVID-19) is a global pandemic. This study's aim was to identify and characterize the top 100 COVID-19-related scientific publications, which had received the highest Altmetric Attention Scores (AASs). Hence, we ... ...

    Abstract The novel coronavirus disease 2019 (COVID-19) is a global pandemic. This study's aim was to identify and characterize the top 100 COVID-19-related scientific publications, which had received the highest Altmetric Attention Scores (AASs). Hence, we searched Altmetric Explorer using search terms such as "COVID" or "COVID-19" or "Coronavirus" or "SARS-CoV-2" or "nCoV" and then selected the top 100 articles with the highest AASs. For each article identified, we extracted the following information: the overall AAS, publishing journal, journal impact factor (IF), date of publication, language, country of origin, document type, main topic, and accessibility. The top 100 articles most frequently were published in journals with high (>10.0) IF (
    Language English
    Publishing date 2021-02-23
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2721009-1
    ISSN 2227-9032
    ISSN 2227-9032
    DOI 10.3390/healthcare9020239
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article ; Online: 연조직 육종의 종양 가장자리 침윤: 3T 자기공명영상 텍스처 분석을 통한 예측.

    Kim, Minji / Jee, Won-Hee / Lee, Youngjun / Hong, Ji Hyun / Jung, Chan Kwon / Chung, Yang-Guk / Lee, So-Yeon

    Taehan Yongsang Uihakhoe chi

    2021  Volume 83, Issue 1, Page(s) 112–126

    Abstract: Purpose: To determine the value of 3 Tesla (T) MRI texture analysis for predicting tumor margin infiltration in soft tissue sarcomas.: Materials and methods: Thirty-one patients who underwent 3T MRI and had a pathologically confirmed diagnosis of ... ...

    Title translation Tumor Margin Infiltration in Soft Tissue Sarcomas: Prediction Using 3T MRI Texture Analysis.
    Abstract Purpose: To determine the value of 3 Tesla (T) MRI texture analysis for predicting tumor margin infiltration in soft tissue sarcomas.
    Materials and methods: Thirty-one patients who underwent 3T MRI and had a pathologically confirmed diagnosis of soft tissue sarcoma were included in this study. Margin infiltration on pathology was used as the gold standard. Texture analysis of soft tissue sarcomas was performed on axial T1-weighted images (WI) and T2WI, fat-suppressed contrast-enhanced (CE) T1WI, diffusion-weighted images (DWI) with b-value of 800 s/mm
    Results: Among the 31 patients with soft tissue sarcomas, 23 showed tumor margin infiltration on pathology. There were significant differences in kurtosis with the spatial scaling factor (SSF) of 0 and 6 on T1WI, kurtosis (SSF, 0) on CE-T1WI, skewness (SSF, 0) on DWI, and skewness (SSF, 2, 4) on ADC between sarcomas with infiltrative margins and those with circumscribed margins (
    Conclusion: MR texture analysis is reliable and accurate for the prediction of infiltrative margins of soft tissue sarcomas.
    Language Korean
    Publishing date 2021-09-16
    Publishing country Korea (South)
    Document type English Abstract ; Journal Article
    ISSN 2288-2928
    ISSN (online) 2288-2928
    DOI 10.3348/jksr.2021.0037
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