Dr. Charles F. Bunting Profile

Dr. Charles F. Bunting

Associate Professor at Oklahoma State Univ

SPIE Involvement:

Author

Publications (11)

Proceedings Article | 23 February 2011 Paper

Forward model of thermally-induced acoustic signal specific to intralumenal detection geometry

Sovanlal Mukherjee, Charles Bunting, Daqing Piao

Proceedings Volume 7899, 789936 (2011) https://doi.org/10.1117/12.874939

KEYWORDS: Acoustics, Tissues, Microwave radiation, Absorption, Signal detection, Tomography, Thermal modeling, Reconstruction algorithms, Bessel functions, Fourier transforms

Read Abstract +

Proceedings Article | 17 February 2011 Paper

"Spiral-planar equivalence" of steady state photon diffusion associated with a cylindrical applicator

Anqi Zhang, Daqing Piao, Charles Bunting

Proceedings Volume 7896, 78960V (2011) https://doi.org/10.1117/12.874898

KEYWORDS: Diffusion, Sensors, Finite element methods, Interfaces, Radium, Tissues, Tissue optics, Optical sensing, Rubidium, Diffuse optical imaging

Read Abstract +

We predict the phenomenon of "spiral-planar equivalence" for steady-state photon diffusion associated with a cylindrical applicator. Recently we have derived a unified theory of steady-state photon diffusion in a homogenous medium bounded either externally (referred to as a concave geometry) or internally (referred to as a convex geometry) by an infinitely long circular cylindrical applicator [JOSAA, 27(3): 648-662 (2010)]. Despite the idealization of the geometry by assuming an infinite length of the applicator, the analytic prediction withholds the quantitative examinations based on experimental measurements, and finite-element solution of photon diffusion. An interesting finding is that the decay of photon fluence in a concave boundary is smaller in the azimuth direction but greater along the longitudinal direction, in comparison with that in a semi-infinite geometry along a straight line, for the same line-of-sight distance between the source and the detector. Conversely, the decay of photon fluence in a convex boundary is greater in the azimuth direction but smaller along the longitudinal direction, in comparison with that in a semi-infinite geometry along a straight line, for the same line-of-sight source-detector distance. These findings suggest that on the cylindrical applicator interface there should exist a spiral direction (oblique to both the azimuthal and longitudinal directions), along which the rate of photon fluence decay follows that along a straight line on a planar semi-infinite interface---which is called the "spiral-planar equivalence". The "spiral-planar equivalence" is derivable analytically, and subject to quantitative evaluations. Validating the "spiral-planar equivalence" not only enriches the understanding of photon diffusion in cylindricalinterface geometry, but also provides unique semi-infinite-based imaging application in trans-lumenal diffuse optical sensing. The "spiral-planar equivalence" may be applicable to time-resolved photon-diffusion.

Proceedings Article | 17 February 2011 Paper

Optical biopsy of the prostate: can we TRUST (trans-rectal ultrasound-coupled spectral tomography)?

Daqing Piao, Zhen Jiang, Kenneth Bartels, G. Reed Holyoak, Jerry Ritchey, Kendra Rock, Charlotte Ownby, Charles Bunting, Gennady Slobodov

Proceedings Volume 7895, 78950I (2011) https://doi.org/10.1117/12.876527

KEYWORDS: Prostate, Near infrared, Tumors, Tissues, Tissue optics, Prostate cancer, Tomography, Ultrasonography, Optical tomography, Absorption

Read Abstract +

Proceedings Article | 10 February 2011 Paper

Different optical spectral characteristics in a necrotic transmissible venereal tumor and a cystic lesion in the same canine prostate observed by triple-band trans-rectal optical tomography under trans-rectal ultrasound guidance

Zhen Jiang, G. Reed Holyoak, Jerry Ritchey, Kenneth E. Bartels, Kendra Rock, Charlotte Ownby, Gennady Slobodov, Charles Bunting, Daqing Piao

Proceedings Volume 7892, 78920P (2011) https://doi.org/10.1117/12.873144

KEYWORDS: Prostate, Tumors, Near infrared, Ultrasonography, Prostate cancer, Doppler tomography, Optical tomography, Tissues, Imaging systems, Oxygen

Read Abstract +

SPIE Journal Paper | 1 May 2009 Open Access

In vivo trans-rectal ultrasound-coupled optical tomography of a transmissible venereal tumor model in the canine pelvic canal

Zhen Jiang, G. Reed Holyoak, Kenneth Bartels, Jerry Ritchey, Guan Xu, Charles Bunting, Gennady Slobodov, Daqing Piao

JBO, Vol. 14, Issue 03, 030506, (May 2009) https://doi.org/10.1117/12.10.1117/1.3149852

KEYWORDS: Near infrared, Tumors, Prostate, In vivo imaging, Optical tomography, Tissues, Absorption, Tomography, Ultrasonography, Scattering

Read Abstract +

DOWNLOAD PAPER

Proceedings Article | 20 February 2009 Paper

A hierarchical spatial prior approach for prostate image reconstruction in trans-rectal optical tomography

Guan Xu, Charles Bunting, Hamid Dehghani, Daqing Piao

Proceedings Volume 7171, 71710S (2009) https://doi.org/10.1117/12.808208

KEYWORDS: Prostate, Tissues, Near infrared, Tumors, Optical properties, Rectum, Optical tomography, Absorption, Tomography, Tissue optics

Read Abstract +

Proceedings Article | 12 February 2009 Paper

In vivo trans-rectal ultrasound coupled trans-rectal near-infrared optical tomography of canine prostate bearing transmissible venereal tumor

Zhen Jiang, G. Reed Holyoak, Kenneth Bartels, Jerry Ritchey, Guan Xu, Charles Bunting, Gennady Slobodov, Jerzy Krasinski, Daqing Piao

Proceedings Volume 7174, 71741U (2009) https://doi.org/10.1117/12.807990

KEYWORDS: Near infrared, Prostate, Tumors, In vivo imaging, Absorption, Scattering, Ultrasonography, Tissue optics, Tomography, Tissues

Read Abstract +

Proceedings Article | 12 February 2009 Paper

Forward modeling of axial trans-lumenal diffuse optical imaging with a cylindrical applicator using continuous-wave photon-illumination

Anqi Zhang, Daqing Piao, Gang Yao, Charles Bunting, Jerzy Krasinski, Brian Pogue

Proceedings Volume 7174, 717404 (2009) https://doi.org/10.1117/12.808012

KEYWORDS: Diffusion, Photon transport, Diffuse optical imaging, Sensors, Continuous wave operation, Monte Carlo methods, Calibration, Bessel functions, Optical tomography, Ions

Read Abstract +

Proceedings Article | 20 February 2008 Paper

Approach of trans-rectal NIR optical tomography probing for the imaging of prostate with trans-rectal ultrasound correlation

Daqing Piao, Zhen Jiang, Guan Xu, Cameron Musgrove, Charles Bunting

Proceedings Volume 6850, 68500E (2008) https://doi.org/10.1117/12.778329

KEYWORDS: Near infrared, Prostate, Tomography, Tissues, Optical tomography, Transducers, Sensors, Optical fibers, Prostate cancer, Data modeling

Read Abstract +

Proceedings Article | 20 February 2007 Paper

Near-infrared optical tomography: endoscopic imaging approach

Daqing Piao, Hao Xie, Cameron Musgrove, Charles Bunting, Weili Zhang, Guolong Zhang, Ellen Domnick-Davidsion, Kenneth Bartels, G. Reed Holyoak, Sreenivas Vemulapalli, Hamid Dehghani, Brian Pogue

Proceedings Volume 6431, 643103 (2007) https://doi.org/10.1117/12.695217

KEYWORDS: Near infrared, Tomography, Endoscopy, Prostate, Optical tomography, Light, Light sources, Imaging systems, In vivo imaging, Tissues

Read Abstract +