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189 results on '"Choi, Jin Woong"'

2. LAD: A Hybrid Deep Learning System for Benign Paroxysmal Positional Vertigo Disorders Diagnostic

Author

Pham, Trung Xuan, Choi, Jin Woong, Mina, Rusty John Lloyd, Nguyen, Thanh, Madjid, Sultan Rizky, and Yoo, Chang Dong

Subjects
Computer Science - Computer Vision and Pattern Recognition
Abstract

Herein, we introduce "Look and Diagnose" (LAD), a hybrid deep learning-based system that aims to support doctors in the medical field in diagnosing effectively the Benign Paroxysmal Positional Vertigo (BPPV) disorder. Given the body postures of the patient in the Dix-Hallpike and lateral head turns test, the visual information of both eyes is captured and fed into LAD for analyzing and classifying into one of six possible disorders the patient might be suffering from. The proposed system consists of two streams: (1) an RNN-based stream that takes raw RGB images of both eyes to extract visual features and optical flow of each eye followed by ternary classification to determine left/right posterior canal (PC) or other; and (2) pupil detector stream that detects the pupil when it is classified as Non-PC and classifies the direction and strength of the beating to categorize the Non-PC types into the remaining four classes: Geotropic BPPV (left and right) and Apogeotropic BPPV (left and right). Experimental results show that with the patient's body postures, the system can accurately classify given BPPV disorder into the six types of disorders with an accuracy of 91% on the validation set. The proposed method can successfully classify disorders with an accuracy of 93% for the Posterior Canal disorder and 95% for the Geotropic and Apogeotropic disorder, paving a potential direction for research with the medical data., Comment: Accepted to IEEE Access 2022, 13 pages, 14 figures

Published
2022

8. Investigating ischemia and reperfusion-induced organ damage in severe cardiac arrest: A comprehensive proteomics perspective.

Author

Lee, Ju Yeon, Shoaib, Muhammad, Choi, Jin-Woong, Choudhary, Rishabh C., Yin, Tai, Yoon, Nara, Hayashida, Kei, Baek, Seunguk J., Miyara, Santiago J., Becker, Lance B., and Kim, Junhwan

Subjects
CARDIAC arrest, PROTEOMICS, ISCHEMIA, POWER resources
Abstract

[Display omitted] • Proteomics analysis was used to explore post-cardiac arrest (CA) pathology. • Significant protein alterations specific to each organ were observed. • The study provides proteomic evidence for impaired brain function after CA. • The data suggest that sustained energy supply is crucial for neuroprotection. [ABSTRACT FROM AUTHOR]

Published
2024
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10. Treatment Efficacy of Various Maneuvers for Lateral Canal Benign Paroxysmal Positional Vertigo With Apogeotropic Nystagmus: A Randomized Controlled Trial

Author

Lee, Hyun Jin, primary, Jeon, Eun-Ju, additional, Nam, Sungil, additional, Mun, Seog-Kyun, additional, Yoo, Shin-Young, additional, Bu, Seong Hyun, additional, Choi, Jin Woong, additional, Chung, Jae Ho, additional, Hong, Seok Min, additional, Lee, Seung-Hwan, additional, Kim, Min-Beom, additional, Koo, Ja-Won, additional, Kim, Hyun Ji, additional, Seo, Jae-Hyun, additional, Ahn, Seong-Ki, additional, Park, Shi Nae, additional, Kim, Minbum, additional, and Chung, Won-Ho, additional

Published
2023
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15. Bilateral Congenital Ossicular Anomalies: Are the Anomalies Symmetric for Both Ears?

Author

Yeon, Eun‐Kyeong, Son, Hyo One, Sung, Hanwool John, and Choi, Jin Woong

Abstract

Objective: To evaluate whether bilateral congenital ossicular anomalies (COAs) differ regarding ossicular anomalies and hearing loss severities between the ears of the individual. Study Design: Retrospective case review. Setting: Tertiary referral academic center. Methods: Between March 2012 and December 2022, 7 consecutive patients (14 ears) with surgically confirmed bilateral COAs were included in the study. Preoperative pure‐tone thresholds, COA classification according to the Teunissen and Cremers system, surgical procedures, and postoperative audiometric results were compared between the 2 ears of each patient. Results: The median age of the patients was 11.5 (range: 6‐25) years. Both ears of each patient were categorized based on the same classification. Three patients possessed class III COAs and the other 4 had class I COAs. The interaural differences in preoperative bone and air conduction thresholds were within 15 dB for all patients. Differences in postoperative air‐bone gaps between ears were not statistically significant. The surgical procedures required for ossicular reconstruction were almost identical for both ears. Conclusion: The severity of ossicular abnormalities and hearing loss in patients with bilateral COAs were symmetrical between ears, thereby enabling prediction of the characteristics of the contralateral ear based on the findings observed in 1 ear. These symmetric clinical features can aid surgeons when operating on the contralateral ear. [ABSTRACT FROM AUTHOR]

Published
2023
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19. A Giant Congenital Mastoid Cholesteatoma With Extension to the Occipital Condyle.

Author

Heo, Jae Hyung and Choi, Jin Woong

Subjects
*SKULL, *MASTOID process, *OCCIPITAL lobe, *CHOLESTEATOMA
Abstract

A congenital mastoid cholesteatoma (CMC) is a keratinizing epithelium originating from embryological epithelial tissue of the mastoid. It is often not diagnosed until it becomes large because of its rarity and indolent nature. Although there are a few reports on giant CMC, its exact extensions have not been well described, and detailed information regarding surgical methods is lacking, especially in giant CMC involving the occipital condyle and the middle and posterior cranial fossae. In this article, we report a case involving a 70-year-old woman with a giant CMC that extended inferiorly to the occipital condyle. The CMC eroded the middle and posterior cranial fossae, sigmoid sinus plate, and fallopian canal of the facial nerve. For complete removal, we used a subtotal petrosectomy in conjunction with an exposure of the cranial cervical junction and a wide decompression of the suboccipit. The boundaries of exposure were similar to those of a petro-occipital transsigmoid approach which is usually used for management of tumor involving the jugular foramen. The wide exposure allowed for complete removal of the lesion without any complications. Thus, we recommend this surgical approach for management of the giant CMC involving the occipital condyle and the middle and posterior cranial fossae. [ABSTRACT FROM AUTHOR]

Published
2023
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22. Results of Active Middle Ear Implantation in Patients With Mixed Hearing Loss After Middle Ear Surgery: A Prospective Multicenter Study (the ROMEO Study)

Author

Song, Chan Il, primary, Cho, Hyong-Ho, additional, Choi, Byung Yoon, additional, Choi, Jae Young, additional, Choi, Jin Woong, additional, Choung, Yun-Hoon, additional, Chung, Jong Woo, additional, Chung, Won-Ho, additional, Hong, Sung Hwa, additional, Kim, Yehree, additional, Lee, Byung Don, additional, Lee, Il-Woo, additional, Lee, Jong Dae, additional, Lee, Jun Ho, additional, Lee, Kyu-Yup, additional, Moon, Il Joon, additional, Moon, In Seok, additional, Oh, Seung-Ha, additional, Park, Hong Ju, additional, Park, Shi Nae, additional, and Seo, Ji Won, additional

Published
2022
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41. Translation and Linguistic Validation of Korean Version of Musical Background Questionnaire

Author

An, Yong-Hwi, primary, Choi, Byung Yoon, additional, Kim, Bong Jik, additional, Choi, Jin Woong, additional, Park, Moo Kyun, additional, Han, Gyu Cheol, additional, Cheon, Byung Chul, additional, Shim, Hyun Joon, additional, Chai, Min Suk, additional, Gfeller, Kate, additional, Ahn, Jungmin, additional, Moon, Il Joon, additional, and Cho, Yang-Sun, additional

Published
2019
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49. Transcanal endoscopic ear surgery for traumatic ossicular injury.

Author

Kim, Min-Su, Chung, Jaein, Kang, Jae-Yoon, and Choi, Jin Woong

Subjects
EAR ossicle surgery, HEAD injury complications, AUDIOMETRY, EAR surgery, EAR ossicles, ENDOSCOPES, ENDOSCOPY, HEARING, HEARING levels, MASTOIDECTOMY, SURGICAL complications, PLASTIC surgery, TREATMENT effectiveness, RETROSPECTIVE studies, PREOPERATIVE period
Abstract

Copyright of Acta Oto-Laryngologica is the property of Taylor & Francis Ltd and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Published
2020
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