1.Applications of Machine Learning in Bone and Mineral Research
Endocrinology and Metabolism 2021;36(5):928-937
In this unprecedented era of the overwhelming volume of medical data, machine learning can be a promising tool that may shed light on an individualized approach and a better understanding of the disease in the field of osteoporosis research, similar to that in other research fields. This review aimed to provide an overview of the latest studies using machine learning to address issues, mainly focusing on osteoporosis and fractures. Machine learning models for diagnosing and classifying osteoporosis and detecting fractures from images have shown promising performance. Fracture risk prediction is another promising field of research, and studies are being conducted using various data sources. However, these approaches may be biased due to the nature of the techniques or the quality of the data. Therefore, more studies based on the proposed guidelines are needed to improve the technical feasibility and generalizability of artificial intelligence algorithms.
3.Clinical Experience of 15 cases of Modified McDonald cerclage using Beriplast TM in Incompetent Internal Os of Cervix.
Moon Il PARK ; Moon Hwi LEE ; Mi Sook KONG ; Jung Hye HWANG ; Sung Ro JUNG ; Hyung MOON
Korean Journal of Obstetrics and Gynecology 2000;43(8):1407-1413
No abstract available.
Cervix Uteri*
;
Female
;
Fibrin Tissue Adhesive*
5.The Effect of MK801 on SSEP and Patholoy in Chronic Spinal Cord Injured Rat.
Sung Woo ROH ; Young Soo KIM ; Do Heum YOON ; Seung Chul RHIM ; Kyung Yup KONG ; Sung Hye PARK ; Kyung Hee LEE
Journal of Korean Neurosurgical Society 2000;29(9):1153-1160
No abstract available.
Animals
;
Dizocilpine Maleate*
;
Rats*
;
Spinal Cord*
6.Thrombotic Microangiopathy Score as a New Predictor of Neurologic Outcomes in Patients after Out-of-Hospital Cardiac Arrest
Je Sung YOU ; Hye Sun LEE ; Soyoung JEON ; Jong Wook LEE ; Hyun Soo CHUNG ; Sung Phil CHUNG ; Taeyoung KONG
Yonsei Medical Journal 2022;63(5):461-469
Purpose:
Given the morphological characteristics of schistocytes, thrombotic microangiopathy (TMA) score can be beneficial as it can be automatically and accurately measured. This study aimed to investigate whether serial TMA scores until 48 h post admission are associated with clinical outcomes in patients undergoing targeted temperature management (TTM) after out-of-hospital cardiac arrest (OHCA).
Materials and Methods:
We retrospectively evaluated a cohort of 185 patients using a prospective registry. We analyzed TMA scores at admission and after 12, 24, and 48 hours. The primary outcome measures were poor neurological outcome at discharge and 30-day mortality.
Results:
Increased TMA scores at all measured time points were independent predictors of poor neurological outcomes and 30-day mortality, with TMA score at time-12 showing the strongest correlation [odds ratio (OR), 3.008; 95% confidence interval (CI), 1.707–5.300; p<0.001 and hazard ratio (HR), 1.517; 95% CI, 1.196–1.925; p<0.001]. Specifically, a TMA score ≥2 at time-12 was closely associated with an increased predictability of poor neurological outcomes (OR, 6.302; 95% CI, 2.841–13.976; p<0.001) and 30-day mortality (HR, 2.656; 95% CI, 1.675–4.211; p<0.001).
Conclusion
Increased TMA scores predicted neurological outcomes and 30-day mortality in patients undergoing TTM after OHCA. In addition to the benefit of being serially measured using an automated hematology analyzer, TMA score may be a helpful tool for rapid risk stratification and identification of the need for intensive care in patients with return of spontaneous circulation after OHCA.
7.Expression of p53 Protein and Ki-67 in Atypical Ductal Hyperplasia, Ductal Carcinoma in Situ, and Microinvasive Ductal Carcinoma of the Breast.
Yi Kyeong CHUN ; Hye Sun KIM ; Yee Jeong KIM ; Sung Ran HONG ; Hy Sook KIM ; Byung Jun PARK ; Sung Su KANG ; Ji Hyun LEE ; Sung Kong LEE ; Sun Hee SUNG ; Woon Sup HAN
Korean Journal of Pathology 2000;34(9):665-672
Mutation of the p53 gene is one of the most common genetic alterations in invasive breast carcinoma. However, it is unclear that the mutation usually occurs in noninvasive breast lesions. It might be expected that there is a correlation between histologic progression of breast lesions and proliferative rate. We investigated the expression of p53 protein and Ki-67 labelling index (LI) using immunohistochemistry in 16 ductal carcinoma in situ with microinvasion (DCIS-Mi), 56 DCIS, 15 atypical ductal hyperplasia (ADH), and 7 intraductal hyperplasia (IDH). Expression of p53 protein was detected in 33.9% of DCIS and 56.3% of DCIS-Mi and was confined exclusively in Van Nuys DCIS group 2 and 3. In ADH and IDH, no expression of p53 protein was found. There was no significant correlation between Van Nuys DCIS groups and Ki-67 LI. In conclusion, p53 mutation may be involved in the neoplastic progression from ADH to DCIS and is directly related to high nuclear grade and associated necrosis of DCIS.
Breast Neoplasms
;
Breast*
;
Carcinoma, Ductal*
;
Carcinoma, Intraductal, Noninfiltrating*
;
Genes, p53
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Hyperplasia*
;
Immunohistochemistry
;
Necrosis
8.Therapeutic Response to Radioactive Iodine Treatment in Graves' Disease.
Hye Young PARK ; Hee Sang KONG ; Yon Sil JUNG ; Sung Kwang LEE ; Hong Kyu KIM ; Moon Ho KANG
Journal of Korean Society of Endocrinology 1999;14(4):679-687
BACKGROUND: Prediction of therapeutic response to radioactive iodine (RAI) in Graves disease is poorly understood. Although thyrotropin binding inhibitor immunoglobulin (TBII) level is a strong index for relapse after antithyroid drug treatment, conflicting results are described regarding its prognostic significance in Graves disease treated with RAI. This study is to evaluate possible prognostic factors including TBII wbich affect the outcome of RAI therapy in Graves disease. METHODS: Two hundred and one patients with Graves disease who were followed for over 12 months after RAI treatment were studied retrospectively. The subjects were divided into hypothyroid, euthyroid and hyperthyroid groups, based on the thyroid function evaluated at 12 months after RAI therapy. We evaluated the association of clinical parameters including patients age, goiter size, degree of hyperthyroidism and TBII index with outcome of RAI treatment. RESULTS: In Graves disease, response rate to RAI was 70.1% (hypothyroid 22.4% and euthyroid 47.7%) until 12th month. The mean age of hypothyroid group was 40+/-11 years, significantly older than that other groups (euthyroid: 33+/-12, hyperthyroid: 35+/-13, p<0.05). Initial level of thyroid function, duration of antithyroid drug treatment prior to RAI, goiter size and dosage of RAI were not significantly different between the groups. There were 61 patients who had both TBII tests before and after RAI. Twelve had negative TBII and 49 had positive TBII before RAI admini-stration. The rate of unremitted hyperthyroidism after RAI therapy was significantly lower in patients with negative TBII than in those with positive TBII prior to RAI treatment( 0% versus 46.9%, p<0.05). CONCLUSION: Graves patients with positive TBII prior to RAI therapy were associated with lower therapeutic response to RAI than those with negatve TBII. And old age was associated with the development of early hypothyroidism after RAI therapy. These results suggest these factors be also considered in the treatment of Graves disease with RAI.
Goiter
;
Graves Disease*
;
Humans
;
Hyperthyroidism
;
Hypothyroidism
;
Immunoglobulins
;
Iodine*
;
Recurrence
;
Retrospective Studies
;
Thyroid Gland
;
Thyrotropin
9.Papillary Thyroid Carcinoma Presented as a Hot Nodule with Hyperthyroidism.
Sung Hye KONG ; Seo Young LEE ; Ye Seul YANG ; Jae Hoon MOON
International Journal of Thyroidology 2016;9(1):47-50
We report a case of a 74-year-old woman who was incidentally found to have a single thyroid nodule. Laboratory evaluation showed undetectable serum thyroid stimulating hormone and elevated free thyroxine levels. (99m)Tc thyroid scan showed a hyperfunctioning autonomous nodule in a right lobe of the thyroid. Thyroid ultrasonography showed a 2.2 cm sized nonhomogeneous spiculated nodule with microcalcification, and which was identical with the hyperfunctioning nodule confirmed in thyroid scan by (99m)Tc single photon emission computed tomography/computed tomography. Fine needle aspiration was done, and cytology reported as suspicious of malignancy. The patient underwent total thyroidectomy with central neck dissection, and pathology was consistent with papillary thyroid carcinoma. This case report demonstrates that diagnosis of a hyperfunctioning autonomous thyroid nodule does not preclude the possibility of thyroid cancer. Clinicians should consider further evaluation such as ultrasonography and fine needle aspiration in patients with hyperfunctioning autonomous nodules.
Aged
;
Biopsy, Fine-Needle
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Diagnosis
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Female
;
Humans
;
Hyperthyroidism*
;
Neck Dissection
;
Pathology
;
Radionuclide Imaging
;
Thyroid Gland*
;
Thyroid Neoplasms*
;
Thyroid Nodule
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Thyroidectomy
;
Thyrotropin
;
Thyroxine
;
Ultrasonography
10.Response: Efficacy of Moderate Intensity Statins in the Treatment of Dyslipidemia in Korean Patients with Type 2 Diabetes Mellitus (Diabetes Metab J 2017;41:23-30).
Sung Hye KONG ; Bo Kyung KOO ; Min Kyong MOON
Diabetes & Metabolism Journal 2017;41(2):152-153
No abstract available.
Diabetes Mellitus, Type 2*
;
Dyslipidemias*
;
Humans
;
Hydroxymethylglutaryl-CoA Reductase Inhibitors*