Browsing OSU - Faculty and Staff Publications by Author "Bartels, Kenneth E."
Now showing items 1-9 of 9
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A low-cost needle-based single-fiber reflectance spectroscopy method to probe scattering changes associated with mineralization in intervertebral discs in chondrodystrophoid canine species - A pilot study
Piao, Daqing; McKeirnan, Kelci; Jiang, Yuanyuan; Breshears, Melanie A.; Bartels, Kenneth E. (De Gruyter, 2012-05-01)Background and objectives: Intervertebral disc herniation is a common disease in chondrodystrophic dogs, and a similar neurologic condition also occurs in humans. Percutaneous laser disc ablation (PLDA) is a minimally ... -
Freehand diffuse optical spectroscopy imaging for intraoperative identification of major venous and arterial vessels underlying peritoneal fat: An in vivo demonstration in a pig model
Piao, Daqing; Ramadan, M; Park, A; Bartels, Kenneth E.; Patel, SG (SPIE, the international society for optics and photonics, 2017-10-30)Inadvertent injury to important anatomic structures is a significant risk in minimally invasive surgery (MIS) that potentially requires conversion to an open procedure, which results in increased morbidity and mortality. ... -
In vivo assessment of diet-induced rat hepatic steatosis development by percutaneous single-fiber spectroscopy detects scattering spectral changes due to fatty infiltration
Piao, Daqing; Sultana, Nigar; Holyoak, G. Reed; Ritchey, Jerry W.; Wall, Corey R.; Murray, Jill K.; Bartels, Kenneth E. (SPIE, the international society for optics and photonics, 2015-11-05)This study explores percutaneous single-fiber spectroscopy (SfS) of rat livers undergoing fatty infiltration. Eight test rats were fed a methionine-choline-deficient (MCD) diet, and four control rats were fed a normal diet. ... -
In vivo percutaneous reflectance spectroscopy of fatty liver development in rats suggests that the elevation of the scattering power is an early indicator of hepatic steatosis
Piao, Daqing; Ritchey, Jerry W.; Reed Holyoak, G; Wall, Corey R.; Sultana, Nigar; Murray, Jill K.; Bartels, Kenneth E. (World Scientific Publishing, 2018-05-11)This study assessed whether there was a scattering spectral marker quantifiable by reflectance measurements that could indicate early development of hepatic steatosis in rats for potential applications to pre-procurement ... -
In vivo trans-rectal ultrasound-coupled near-infrared optical tomography of intact normal canine prostate
Piao, Daqing; Jiang, Zhen; Bartels, Kenneth E.; Reed Holyoak, G; Ritchey, Jerry W.; Xu, Guan; Bunting, Charles F.; Slobodov, Gennady (World Scientific Publishing, 2009-07-01)This is the first tomography-presentation of the optical properties of a normal canine prostate, in vivo, in its native intact environment in the pelvic canal. The imaging was performed by trans-rectal near-infrared (NIR) ... -
In vivo trans-rectal ultrasound-coupled optical tomography of a transmissible venereal tumor model in the canine pelvic canal
Jiang, Zhen; Holyoak, G. Reed; Bartels, Kenneth E.; Ritchey, Jerry W.; Xu, Guan; Bunting, Charles F.; Slobodov, Gennady; Piao, Daqing (SPIE, the international society for optics and photonics, 2009-05-01)In vivo trans-rectal near-infrared (NIR) optical tomography was performed concurrently with, albeit reconstructed without spatial a prior of, trans-rectal ultrasound (US) on transmissible venereal tumor (TVT) developed as ... -
Toward transduodenal diffuse optical tomography of proximal pancreas
Piao, Daqing; Bartels, Kenneth E.; Postier, Russell G.; Holyoak, G. Reed; Ritchey, Jerry W. (Optica Publishing Group, 2013-10-10)We demonstrate the feasibility of diffuse optical tomography (DOT) of the proximal pancreas by using optical applicator channels deployed longitudinally along the exterior surface of a duodenoscope. As the duodenum that ... -
Trans-rectal ultrasound-coupled near-infrared optical tomography of the prostate. Part II: Experimental demonstration
Jiang, Zhen; Piao, Daqing; Xu, Guan; Ritchey, Jerry W.; Reed Holyoak, G; Bartels, Kenneth E.; Bunting, Charles F.; Slobodov, Gennady; Krasinki, Jerzy S. (Optica Publishing Group, 2008-10-15)We demonstrate trans-rectal optical tomography of the prostate using an endo-rectal near-infrared (NIR) applicator integrated with a transrectal ultrasound (TRUS) probe. The endo-rectal NIR applicator incorporated a design ... -
Transrectal ultrasound-integrated spectral optical tomography of hypoxic progression of a regressing tumor in a canine prostate
Jiang, Zhen; Piao, Daqing; Bartels, Kenneth E.; Holyoak, G. Reed; Ritchey, Jerry W.; Ownby, CL; Rock, K; Slobodov, Gennady (SAGE Publications, 2011-12-01)The objective of this study was to evaluate if transrectal optical tomography implemented at three wavelength bands for spectral detection could monitor changes of the hemoglobin oxygen saturation (SₜO₂) in addition to ...