Prof. Ulas Sunar Profile

Prof. Ulas Sunar

Associate Professor at Stony Brook University

SPIE Involvement:

Author

Area of Expertise:

diffuse optical imaging , diffuse correlation spectroscopy , fluorescence lifetime imaging , speckle imaging , functional near infrared spectroscopy , spatial frequency domain imaging

Websites:

Personal Website | Company Website

Publications (17)

Proceedings Article | 15 June 2023 Presentation

Time-gated diffuse correlation spectroscopy system at 1064nm using superconducting nanowire single photon detectors for monitoring of traumatic brain injury

Ulas Sunar

Proceedings Volume PC12512, PC1251207 (2023) https://doi.org/10.1117/12.2663934

KEYWORDS: Superconductors, Single photon detectors, Nanowires, Traumatic brain injury, Spectroscopy, Temporal resolution, Diffusion

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Proceedings Article | 14 February 2020 Presentation + Paper

Time-resolved mesoscopic imaging of a whole animal by FastFLIM

Yuansheng Sun, Chien-Sing Poon, Hailin Qiu, Ulas Coskun, Shih-chu Liao, Sunil Shah, Beniamino Barbieri, Ulas Sunar

Proceedings Volume 11244, 112441C (2020) https://doi.org/10.1117/12.2546110

KEYWORDS: Luminescence, Photons, Tissues, Fluorescence lifetime imaging, Imaging systems, Absorption, Whole body imaging, Near infrared spectroscopy

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Proceedings Article | 14 August 2019 Presentation

Optical imaging guided photodynamic therapy monitoring and optimization (Conference Presentation)

Ulas Sunar

Proceedings Volume 11070, 110704N (2019) https://doi.org/10.1117/12.2527344

KEYWORDS: Photodynamic therapy, Optical imaging, Blood circulation, Luminescence, Picosecond phenomena, Cancer, Optimization (mathematics), Tumor growth modeling, Phototherapy, Visualization

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SPIE Journal Paper | 14 September 2018 Open Access

Review of structured light in diffuse optical imaging

Joseph Angelo, Sez-Jade Chen, Marien Ochoa, Ulas Sunar, Sylvain Gioux, Xavier Intes

JBO, Vol. 24, Issue 07, 071602, (September 2018) https://doi.org/10.1117/12.10.1117/1.JBO.24.7.071602

KEYWORDS: Imaging systems, Tomography, Structured light, Diffuse optical imaging, Sensors, Tissue optics, Luminescence, Scattering, Spatial frequencies, Photons

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SPIE Journal Paper | 18 January 2016 Open Access

Intraoperative optical assessment of photodynamic therapy response of superficial oral squamous cell carcinoma

Daniel Rohrbach, Erin Tracy, Michele Cooper, Barbara Henderson, Ulas Sunar, Nestor Rigual, Hassan Arshad, Gal Shafirstein, Gregory Wilding, Mihai Merzianu, Heinz Baumann

JBO, Vol. 21, Issue 01, 018002, (January 2016) https://doi.org/10.1117/12.10.1117/1.JBO.21.1.018002

KEYWORDS: Photodynamic therapy, Picosecond phenomena, Tissues, Biopsy, Tissue optics, Blood circulation, Optical testing, Luminescence, Oxygen, Biomedical optics

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Proceedings Article | 13 March 2013 Paper

Imaging nonmelanoma skin cancers with combined ultrasound-photoacoustic microscopy

Ulas Sunar, Daniel Rohrbach, Janet Morgan, Natalie Zeitouni

Proceedings Volume 8568, 856816 (2013) https://doi.org/10.1117/12.2005104

KEYWORDS: Ultrasonography, Tumors, Photodynamic therapy, Photoacoustic spectroscopy, Skin cancer, Microscopy, Transducers, Photoacoustic imaging, Skin, Tumor growth modeling

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Proceedings Article | 13 March 2013 Paper

Noninvasive imaging of absolute PpIX concentration distribution in nonmelanoma skin tumors at pre-PDT

Ulas Sunar, Daniel Rohrbach, Janet Morgan, Natalie Zeitouni

Proceedings Volume 8568, 85680C (2013) https://doi.org/10.1117/12.2005078

KEYWORDS: Tumors, Luminescence, Photodynamic therapy, In vivo imaging, Picosecond phenomena, Tissues, Optical properties, Tumor growth modeling, Absorption, Skin

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Proceedings Article | 13 March 2013 Paper

A probe specific empirical light transport model for improved quantification of optical parameters for accurate PDT dosimetry

Daniel Rohrbach, Andrew Kowalczewski, Bouri Chen, Ulas Sunar

Proceedings Volume 8568, 856815 (2013) https://doi.org/10.1117/12.2005051

KEYWORDS: Scattering, Tissue optics, Absorption, Optical properties, Photodynamic therapy, Data modeling, Diffusion, Light scattering, Sensors, Radon

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Proceedings Article | 13 March 2013 Paper

Monitoring PDT response of head and neck lesions with diffuse optical spectroscopies

Daniel Rohrbach, Nestor Rigual, Erin Tracy, Ken Keymel, Michele Cooper, Heinz Baumann, Barbara Henderson, Ulas Sunar

Proceedings Volume 8568, 856814 (2013) https://doi.org/10.1117/12.2005024

KEYWORDS: Photodynamic therapy, Blood circulation, Blood, Blood oxygen saturation, Head, Neck, Cancer, Oncology, Diffuse optical spectroscopy, Picosecond phenomena

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SPIE Journal Paper | 16 May 2012 Open Access

Imaging a photodynamic therapy photosensitizer in vivo with a time-gated fluorescence tomography system

Weirong Mo, Daniel Rohrbach, Ulas Sunar

JBO, Vol. 17, Issue 7, 071306, (May 2012) https://doi.org/10.1117/12.10.1117/1.JBO.17.7.071306

KEYWORDS: Photodynamic therapy, Luminescence, Tumors, In vivo imaging, Imaging systems, Image restoration, Image intensifiers, Tissues, Tissue optics, CCD cameras

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Proceedings Article | 13 July 2009 Paper

Potentiation of ALA-PDT antitumor activity in mice using topical DMXAA

Allison Marrero, Ulas Sunar, Theresa Sands, Allan Oseroff, David Bellnier

Proceedings Volume 7380, 738071 (2009) https://doi.org/10.1117/12.829644

KEYWORDS: Tumors, Blood circulation, Photodynamic therapy, Colon, Control systems, Cancer, Spectroscopy, Blood, Oxygen, Sensors

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Proceedings Article | 18 February 2009 Paper

Imaging of a targeted PDT drug with fluorescence tomography

Dan Muffoletto, Anurag Gupta, Zhiqiang Xu, Chris Mahrer, Gretchen Bauer, Scott Galas, Ravindra Pandey, Ulas Sunar

Proceedings Volume 7164, 716409 (2009) https://doi.org/10.1117/12.809526

KEYWORDS: Tumors, Luminescence, Photodynamic therapy, Fluorescence tomography, Sensors, Tomography, Absorption, CCD image sensors, In vivo imaging, Liver

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Proceedings Article | 18 February 2009 Paper

Monitoring blood flow and photobleaching during topical ALA PDT treatment

Theresa Sands, Ulas Sunar, Thomas Foster, Allan Oseroff

Proceedings Volume 7164, 71640U (2009) https://doi.org/10.1117/12.809217

KEYWORDS: Photodynamic therapy, Blood circulation, Tumors, Oxygen, Sensors, Skin, Luminescence, Cell death, Light, Optical fibers

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Proceedings Article | 13 February 2007 Paper

Pharmacokinetic assessment of a polymersome-based molecular beacon by in vivo fluorescence monitoring

Ulas Sunar, P. Peter Ghoroghchian, Xavier Intes, Michael Therien, Daniel Hammer, Arjun Yodh

Proceedings Volume 6434, 64342I (2007) https://doi.org/10.1117/12.700802

KEYWORDS: Tumors, Luminescence, Polymers, Optical filters, Tissues, In vivo imaging, Sensors, Semiconductor lasers, Liver, Blood

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SPIE Journal Paper | 1 November 2006 Open Access

Noninvasive diffuse optical measurement of blood flow and blood oxygenation for monitoring radiation therapy in patients with head and neck tumors: a pilot study

Ulas Sunar, H. Quon, Turgut Durduran, Jun Zhang, Juan Du, Chao Zhou, Guoqiang Yu, Regine Choe, Alex Kilger, Robert Lustig, Laurie Loevner, Shoko Nioka, Britton Chance, Arjun Yodh

JBO, Vol. 11, Issue 06, 064021, (November 2006) https://doi.org/10.1117/12.10.1117/1.2397548

KEYWORDS: Tumors, Blood circulation, Neck, Tissue optics, Optical testing, Tissues, Radiotherapy, Head, Sensors, Blood

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Proceedings Article | 8 October 2005 Paper

Monitoring of radiation therapy response of head and neck tumors by non-invasive optical blood flow measurements

U. Sunar, H. Quon, J. Zhang, J. Du, T. Durduran, C. Zhou, G. Yu, A. Kilger, R. Lustig, L. Loevner, S. Nioka, A. Yodh, B. Chance

Proceedings Volume 5859, 58590I (2005) https://doi.org/10.1117/12.632838

KEYWORDS: Tumors, Blood circulation, Neck, Head, Radiotherapy, Optical testing, Sensors, Cancer, Positron emission tomography, Magnetic resonance imaging

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