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329 results on '"Chang, Jin Ho"'

4. USG-Net: Deep Learning-based Ultrasound Scanning-Guide for an Orthopedic Sonographer

Author

Lee, Kyungsu, Yang, Jaeseung, Lee, Moon Hwan, Chang, Jin Ho, Kim, Jun-Young, Hwang, Jae Youn, Goos, Gerhard, Founding Editor, Hartmanis, Juris, Founding Editor, Bertino, Elisa, Editorial Board Member, Gao, Wen, Editorial Board Member, Steffen, Bernhard, Editorial Board Member, Yung, Moti, Editorial Board Member, Wang, Linwei, editor, Dou, Qi, editor, Fletcher, P. Thomas, editor, Speidel, Stefanie, editor, and Li, Shuo, editor

Published
2022
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7. Ultrasound‐Assisted Photothermal Therapy (ULTRA‐PTT) for the Treatment of Deep‐Seated Tumors.

Author

Kim, Haemin, Kim, Jinwoo, Seo, An Na, and Chang, Jin Ho

Subjects
LIGHT propagation, TUMOR treatment, LIGHT scattering, MICROBUBBLE diagnosis, TISSUES, LASER ultrasonics, HIGH-intensity focused ultrasound
Abstract

Photothermal therapy (PTT) has garnered considerable attention as an attractive treatment tool for cancer due to precisely selective treatment and minimal side effects. The primary challenge of PTT, which hinders its widespread application, is the limited therapeutic depth. This limitation arises from optical scattering in biological tissues, causing inadequate heat distribution within the deep tissue. To overcome this challenge, ultrasound‐assisted PTT (ULTRA‐PTT) is proposed that leverages the temporary formation of gas bubbles induced by ultrasound within the light propagation path. These bubbles act as optical clearing agents, effectively reducing optical scattering in biological tissues. To facilitate ULTRA‐PTT, a dedicated handpiece consisting of a ring‐shaped ultrasound transducer and a laser delivery module is developed. In‐vivo experiments show that ULTRA‐PTT statistically outperforms conventional PTT in melanoma treatment, mostly due to its ability to deliver sufficient laser energy to deep‐seated cancer cells. These findings underscore the potential of ULTRA‐PTT to expand the clinical applications of PTT beyond local tumors occurring in superficial tissue. [ABSTRACT FROM AUTHOR]

Published
2024
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8. Gas bubbles induced by combined optical and ultrasound energies for high-resolution deep optical microscopy.

Author

Kim, Jinwoo, Kim, Juhwan, Kim, Haemin, and Chang, Jin Ho

Subjects
MICROSCOPY, LIGHT scattering, OPTICAL images, TISSUES, ULTRASONIC imaging, MICROBUBBLE diagnosis
Abstract

Ultrasound-induced optical clearing microscopy (US-OCM) addresses limited imaging depth in optical microscopy, caused by light scattering in biological tissues. It uses ultrasound-induced gas bubbles to better image biological samples. However, controlling the bubble location using only ultrasound is challenging. This study introduces a novel method, "optrasound," combining optical and ultrasound energies for precise bubble control. It presents the ultrasound field and uses a focused laser to trigger bubble formation. Optrasound-induced deep microscopy improves light beam width by 3.39 times at a depth of 350 µm because the gas bubbles reduce light scattering. This technique can precisely localize a bubble cloud while matching the US-OCM performance. [ABSTRACT FROM AUTHOR]

Published
2024
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26. Robust Path Design of Biomechanical Systems Using the Concept of Allowable Load Set

Author

Chang, Jin Ho, Kim, Jae Hyun, Kwak, Byung Man, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Dough, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Bubak, Marian, editor, van Albada, Geert Dick, editor, Sloot, Peter M. A., editor, and Dongarra, Jack, editor

Published
2004
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47. Multifunctional Theranostic Nanomedicine for Photoacoustic Imaging-Guided Combination Tumor Treatment

Author

Moon Hyungwon, Kim Jungwook, Kim Haemin, Lee Hohyeon, Kim Hyuncheol, Chang Jin Ho, and Kim Jamin

Subjects
Materials science, Theranostic Nanomedicine, Biomedical Engineering, Tumor therapy, Photoacoustic imaging in biomedicine, Bioengineering, 02 engineering and technology, General Chemistry, 010402 general chemistry, 021001 nanoscience & nanotechnology, Condensed Matter Physics, 01 natural sciences, 0104 chemical sciences, General Materials Science, 0210 nano-technology, Biomedical engineering
Published
2016

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