Mr. Ming-Liang Wei Profile

Ming-Liang Wei

Research Assistant at National Taiwan Univ

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Publications (5)

Proceedings Article | 19 July 2019 Paper

Rapid intraoperative margin assessment by using multi-modal third-harmonic generation and three-photon fluorescence microscopy

Chi-Kuang Sun, Chien-Ting Kao, Yi-Hua Liao, Ming-Liang Wei

Proceedings Volume 11073, 110730X (2019) https://doi.org/10.1117/12.2525658

KEYWORDS: Microscopy, Tissues, Pathology, Tumors, Surgery, Harmonic generation, Confocal microscopy, Skin

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Proceedings Article | 30 April 2019 Presentation + Paper

Slide-free histopathological imaging of hematoxylin-eosin-stained whole mount tissues using Cr:forsterite laser-based nonlinear microscopy

Chi-Kuang Sun, Chien-Ting Kao, Ming-Liang Wei, Yi-Hua Liao

Proceedings Volume 11026, 110260T (2019) https://doi.org/10.1117/12.2520417

KEYWORDS: Tissues, Microscopy, Skin, Femtosecond phenomena, Pathology, Luminescence, Glasses, Spectroscopy, Harmonic generation

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Proceedings Article | 24 April 2017 Open Access

Molecular imaging of melanin distribution in vivo and quantitative differential diagnosis of human pigmented lesions using label-free harmonic generation biopsy (Conference Presentation)

Chi-Kuang Sun, Ming-Liang Wei, Yu-Hsiang Su, Wei-Hung Weng, Yi-Hua Liao

Proceedings Volume 10069, 1006905 (2017) https://doi.org/10.1117/12.2256340

KEYWORDS: Tumors, Skin, Harmonic generation, Biopsy, Microscopy, Molecular imaging, In vivo imaging, 3D image processing, Image resolution, Resonance enhancement

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Proceedings Article | 19 April 2017 Presentation

3D imaging of hematoxylin and eosin stained thick tissues with a sub-femtoliter resolution by using Cr:forsterite-laser-based nonlinear microscopy (Conference Presentation)

Chien-Ting Kao, Ming-Liang Wei, Yi-Hua Liao, Chi-Kuang Sun

Proceedings Volume 10037, 100370G (2017) https://doi.org/10.1117/12.2250191

KEYWORDS: Tumors, Photonics, Tissues, Microscopy, Pathology, Stereoscopy, Image resolution, Surgery, Confocal microscopy, Luminescence

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Intraoperative assessment of excision tissues during cancer surgery is clinically important. The assessment is used to be guided by the examination for residual tumor with frozen pathology, while it is time consuming for preparation and is with low accuracy for diagnosis. Recently, reflection confocal microscopy (RCM) and nonlinear microscopy (NLM) were demonstrated to be promising methods for surgical border assessment. Intraoperative RCM imaging may enable detection of residual tumor directly on skin cancers patients during Mohs surgery. The assessment of benign and malignant breast pathologies in fresh surgical specimens was demonstrated by NLM. Without using hematoxylin and eosin (H and E) that are common dyes for histopathological diagnosis, RCM was proposed to image in vivo by using aluminum chloride for nuclear contrast on surgical wounds directly, while NLM was proposed to detect two photon fluorescence nuclear contrast from acrdine orange staining. In this paper, we propose and demonstrate 3D imaging of H and E stained thick tissues with a sub-femtoliter resolution by using Cr:forsterite-laser-based NLM. With a 1260 nm femtosecond Cr:forsterite laser as the excitation source, the hematoxylin will strongly enhance the third-harmonic generation (THG) signals, while eosin will illuminate strong fluorescence under three photon absorption. Compared with previous works, the 1260 nm excitation light provide high penetration and low photodamage to the exercised tissues so that the possibility to perform other follow-up examination will be preserved. The THG and three-photon process provides high nonlinearity so that the super resolution in 3D is now possible. The staining and the contrast of the imaging is also fully compatible with the current clinical standard on frozen pathology thus facilitate the rapid intraoperative assessment of excision tissues. This work is sponsored by National Health Research Institutes and supported by National Taiwan University Hospital.

SPIE Journal Paper | 18 July 2016 Open Access

Differentiating intratumoral melanocytes from Langerhans cells in nonmelanocytic pigmented skin tumors in vivo by label-free third-harmonic generation microscopy

Wei-Hung Weng, Yi-Hua Liao, Ming-Rung Tsai, Ming-Liang Wei, Hsin-Yi Huang, Chi-Kuang Sun

JBO, Vol. 21, Issue 07, 076009, (July 2016) https://doi.org/10.1117/12.10.1117/1.JBO.21.7.076009

KEYWORDS: Tumors, Skin, Liquid crystals, In vivo imaging, Microscopy, Melanoma, Dendrites, Third-harmonic generation, Image enhancement, Signal processing

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