Search Results - "Papaioannou, Thanassis"

In vivo detection of macrophages in a rabbit atherosclerotic model by time-resolved laser-induced fluorescence spectroscopy by Marcu, Laura, Fang, Qiyin, Jo, Javier A., Papaioannou, Thanassis, Dorafshar, Amir, Reil, Todd, Qiao, Jian-Hua, Baker, J. Dennis, Freischlag, Julie A., Fishbein, Michael C.

“…Accumulation of numerous macrophages in the fibrous cap is a key identifying feature of plaque inflammation and vulnerability. This study investigates the use…”
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Effects of fiber-optic probe design and probe-to-target distance on diffuse reflectance measurements of turbid media: an experimental and computational study at 337 nm by Papaioannou, Thanassis, Preyer, Norris W, Fang, Qiyin, Brightwell, Adam, Carnohan, Michael, Cottone, Greg, Ross, Russel, Jones, Linda R, Marcu, Laura

“…Fiber-optic probes are widely used in optical spectroscopy of biological tissues and other turbid media. Only limited information exists, however, on the ways…”
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Performance of a diaphragmed microlens for a packaged microspectrometer by Lo, Joe, Chen, Shih-Jui, Fang, Qiyin, Papaioannou, Thanassis, Kim, Eun-Sok, Gundersen, Martin, Marcu, Laura

“…This paper describes the design, fabrication, packaging and testing of a microlens integrated in a multi-layered MEMS microspectrometer. The microlens was…”
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Detection of rupture-prone atherosclerotic plaques by time-resolved laser-induced fluorescence spectroscopy by Marcu, Laura, Jo, Javier A, Fang, Qiyin, Papaioannou, Thanassis, Reil, Todd, Qiao, Jian-Hua, Baker, J. Dennis, Freischlag, Julie A, Fishbein, Michael C

“…Abstract Objective Plaque with dense inflammatory cells, including macrophages, thin fibrous cap and superficial necrotic/lipid core is thought to be…”
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Intraluminal fluorescence spectroscopy catheter with ultrasound guidance by Stephens, Douglas N, Park, Jesung, Sun, Yang, Papaioannou, Thanassis, Marcu, Laura

“…We demonstrate the feasibility of a time-resolved fluorescence spectroscopy (TRFS) technique for intraluminal investigation of arterial vessel composition…”
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Fast model-free deconvolution of fluorescence decay for analysis of biological systems by Jo, Javier A, Fang, Qiyin, Papaioannou, Thanassis, Marcu, Laura

“…For complex biological systems, conventional analysis of fluorescence intensity decay in terms of discrete exponential components cannot readily provide a true…”
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Laguerre-based method for analysis of time-resolved fluorescence data: application to in-vivo characterization and diagnosis of atherosclerotic lesions by Jo, Javier A, Fang, Qiyin, Papaioannou, Thanassis, Baker, J Dennis, Dorafshar, Amir H, Reil, Todd, Qiao, Jian-Hua, Fishbein, Michael C, Freischlag, Julie A, Marcu, Laura

“…We report the application of the Laguerre deconvolution technique (LDT) to the analysis of in-vivo time-resolved laser-induced fluorescence spectroscopy…”
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Distinction of brain tissue, low grade and high grade glioma with time-resolved fluorescence spectroscopy by Yong, William H, Butte, Pramod V, Pikul, Brian K, Jo, Javier A, Fang, Qiyin, Papaioannou, Thanassis, Black, Keith, Marcu, Laura

“…Neuropathology frozen section diagnoses are difficult in part because of the small tissue samples and the paucity of adjunctive rapid intraoperative stains…”
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Utility of Quantum Dots for Labeling and Tracking Leukemic Cell Lines, Human Bone Marrow and CD 34+ Umbilical Cord Blood by Garon, Edward B., Crooks, Gay M., Tcherniantchouk, Oxana, Luong, Quang T., Papaioannou, Thanassis, Marcu, Laura, Koeffler, H. Phillip

“…Quantum dots (QDs) are nanometer scale fluorescent semiconductors that have recently garnered much interest as agents for imaging. QDs have several advantages…”
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On the photobleaching of native and exogenous (BPD-MA) fluorescence: Quantification of kinetics and its role in diagnostics in tumor and atherosclerotic animal models by Papaioannou, Thanassis

“…Fluorescence photobleaching (Phbl) is a process via which molecules, gradually loose their ability to fluoresce. It is present, to a lesser or greater degree,…”
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Results of excimer laser photorefractive keratectomy for the correction of myopia by Maguen, E, Salz, J J, Nesburn, A B, Warren, C, Macy, J I, Papaioannou, T, Hofbauer, J, Berlin, M S

“…This report summarizes the authors' 3-year experience with excimer laser photorefractive keratectomy on 240 eyes of 161 patients. With constant laser emission…”
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A two-year experience with excimer laser photorefractive keratectomy for myopia by Salz, J J, Maguen, E, Nesburn, A B, Warren, C, Macy, J I, Hofbauer, J D, Papaioannou, T, Berlin, M

“…This report summarizes the authors' 2-year experience with excimer laser photorefractive keratectomy (PRK) on 160 eyes of 128 patients. All eyes were treated…”
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XeCl EXCIMER LASER-INDUCED FLUORESCENCE FOR SELECTIVE ABLATION OF ATHEROMATOUS TISSUE by ARAKAWA, KOH, PAPAZOGLOU, THEDORE, PAPAIOANNOU, THANASSIS, SHI, WEI QIANG, FISHBEIN, MICHAEL, LITVACK, FRANK, FORRESTER, JAMES S, GRUNDFEST, WARREN S

“…In order to develop a reliable laser-induced fluorescence (LIF) guided laser angioplasty system, real time, pulse-by-pulse fluorescence spectra were recorded…”
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Optical nonlinearities at the band gap of InAs at 3.39 m by Papaioannou, Thanassis

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Role of laser and thermal ablation devices in the treatment of vascular diseases by Litvack, Frank, Grundfest, Warren S., Papaioannou, Thanassis, Mohr, Friedrich W., Jakubowski, Andrew T., Forrester, James S.

“…Since the first coronary angioplasty in 1977, both the number and complexity of interventional procedures have grown dramatically. Continuous-wave and pulsed…”
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Excimer laser ablation of fibrocartilage: an in vitro and in vivo study by Buchelt, M, Papaioannou, T, Fishbein, M, Peters, W, Beeder, C, Grundfest, W S

“…To date, lasers have found only limited applications in orthopedics. We employed a 308 nm XeCl excimer laser for ablation of fibrocartilage, in order to…”
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Excimer ablation of human intervertebral disc at 308 nanometers by Wolgin, M, Finkenberg, J, Papaioannou, T, Segil, C, Soma, C, Grundfest, W

“…Excimer laser energy, which has been shown to photoablate tissue at a precisely controllable rate with minimal thermal damage, was applied to human…”
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Laser-induced fluorescence guided laser angioplasty using exogenous probe (tetracycline) by Arakawa, Koh, Papazoglou, Theodore, Papaioannou, Thanassis, Shi, Weiqiang, Litvack, Frank, Fishbein, Michael, Forrester, James S., Grundfest, Warren S.

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Excimer laser ablation of the human lens at 308 nm with a fiber delivery system by Maguen, E, Martinez, M, Grundfest, W, Papaioannou, T, Berlin, M, Nesburn, A B

“…A 308 nm excimer laser has been used with a fiber delivery system to perform ablation of the human lens. Preliminary results demonstrate the system's ability…”
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Fragmentation of biliary stones with a 308 nm excimer laser by Shi, W, Papaioannou, T, Daykhovsky, L, Vari, S G, Grundfest, W S

“…The use of a XeCl excimer laser (308 nm) for biliary stone fragmentation is reported. Laser energy is delivered via UV grade fused silica fibers to the target…”
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