Nirmala Ramanujam - Publications

Affiliations: 
Biomedical Engineering Duke University, Durham, NC 
Area:
Biomedical Engineering, Radiology

130 high-probability publications. We are testing a new system for linking publications to authors. You can help! If you notice any inaccuracies, please sign in and mark papers as correct or incorrect matches. If you identify any major omissions or other inaccuracies in the publication list, please let us know.

Year Citation  Score
2019 Madonna MC, Fox DB, Crouch BT, Lee J, Zhu C, Martinez AF, Alvarez JV, Ramanujam N. Optical imaging of glucose uptake and mitochondrial membrane potential to characterize Her2 breast tumor metabolic phenotypes. Molecular Cancer Research : McR. PMID 30902832 DOI: 10.1158/1541-7786.MCR-18-0618  0.32
2018 Palmer GM, Zhang H, Lee CT, Mikati H, Herbert JA, Krieger M, von Windheim J, Koester D, Stevenson D, Rocke DJ, Esclamado R, Erkanli A, Ramanujam N, Dewhirst MW, Lee WT. Assessing effects of pressure on tumor and normal tissue physiology using an automated self-calibrated, pressure-sensing probe for diffuse reflectance spectroscopy. Journal of Biomedical Optics. 23: 1-8. PMID 29766688 DOI: 10.1117/1.JBO.23.5.057004  0.64
2018 Martinez AF, McCachren SS, Lee M, Murphy HA, Zhu C, Crouch BT, Martin HL, Erkanli A, Rajaram N, Ashcraft KA, Fontanella AN, Dewhirst MW, Ramanujam N. Metaboloptics: Visualization of the tumor functional landscape via metabolic and vascular imaging. Scientific Reports. 8: 4171. PMID 29520098 DOI: 10.1038/s41598-018-22480-w  0.64
2017 Hu F, Martin H, Martinez AF, Everitt J, Erkanli A, Lee WT, Dewhirst MW, Ramanujam N. Distinct angiogenic changes during carcinogenesis defined by novel label-free dark field imaging in a hamster cheek pouch model. Cancer Research. PMID 29021136 DOI: 10.1158/0008-5472.CAN-17-1058  0.52
2017 Morhard R, Nief C, Barrero Castedo C, Hu F, Madonna M, Mueller JL, Dewhirst MW, Katz DF, Ramanujam N. Development of enhanced ethanol ablation as an alternative to surgery in treatment of superficial solid tumors. Scientific Reports. 7: 8750. PMID 28821832 DOI: 10.1038/s41598-017-09371-2  0.52
2015 Nichols BS, Schindler CE, Brown JQ, Wilke LG, Mulvey CS, Krieger MS, Gallagher J, Geradts J, Greenup RA, Von Windheim JA, Ramanujam N. A Quantitative Diffuse Reflectance Imaging (QDRI) System for Comprehensive Surveillance of the Morphological Landscape in Breast Tumor Margins. Plos One. 10: e0127525. PMID 26076123 DOI: 10.1371/journal.pone.0127525  0.64
2015 Rajaram N, Reesor AF, Mulvey CS, Frees AE, Ramanujam N. Non-invasive, simultaneous quantification of vascular oxygenation and glucose uptake in tissue. Plos One. 10: e0117132. PMID 25635865 DOI: 10.1371/journal.pone.0117132  0.64
2015 Bydlon TM, Nachabé R, Ramanujam N, Sterenborg HJ, Hendriks BH. Chromophore based analyses of steady-state diffuse reflectance spectroscopy: current status and perspectives for clinical adoption. Journal of Biophotonics. 8: 9-24. PMID 24760790 DOI: 10.1002/jbio.201300198  0.64
2015 Leitgeb RA, Andersen PE, Popp J, Ramanujam N, Svanberg K. Special Section Guest Editorial: Light for Life: International Year of Light 2015 Journal of Biomedical Optics. 20. DOI: 10.1117/1.JBO.20.6.061101  0.64
2014 Frees AE, Rajaram N, McCachren SS, Fontanella AN, Dewhirst MW, Ramanujam N. Delivery-corrected imaging of fluorescently-labeled glucose reveals distinct metabolic phenotypes in murine breast cancer. Plos One. 9: e115529. PMID 25526261 DOI: 10.1371/journal.pone.0115529  0.64
2014 Hu F, Vishwanath K, Wolfgang Beumer H, Puscas L, Afshari HR, Esclamado RM, Scher R, Fisher S, Lo J, Mulvey C, Ramanujam N, Lee WT. Assessment of the sensitivity and specificity of tissue-specific-based and anatomical-based optical biomarkers for rapid detection of human head and neck squamous cell carcinoma. Oral Oncology. 50: 848-56. PMID 25037162 DOI: 10.1016/j.oraloncology.2014.06.015  0.36
2014 Yu B, Shah A, Wang B, Rajaram N, Wang Q, Ramanujam N, Palmer GM, Dewhirst MW. Measuring tumor cycling hypoxia and angiogenesis using a side-firing fiber optic probe Journal of Biophotonics. 7: 552-564. PMID 23242854 DOI: 10.1002/jbio.201200187  0.64
2014 Frees A, Rajaram N, McCachren S, Vaz A, Dewhirst M, Ramanujam N. Optical monitoring of glucose demand and vascular delivery in a preclinical murine model Progress in Biomedical Optics and Imaging - Proceedings of Spie. 8947. DOI: 10.1117/12.2040950  0.64
2013 Hu F, Vishwanath K, Lo J, Erkanli A, Mulvey C, Lee WT, Ramanujam N. Rapid determination of oxygen saturation and vascularity for cancer detection. Plos One. 8: e82977. PMID 24358243 DOI: 10.1371/journal.pone.0082977  0.64
2013 Rajaram N, Frees AE, Fontanella AN, Zhong J, Hansen K, Dewhirst MW, Ramanujam N. Delivery rate affects uptake of a fluorescent glucose analog in murine metastatic breast cancer. Plos One. 8: e76524. PMID 24204635 DOI: 10.1371/journal.pone.0076524  0.64
2013 Barrott JJ, Hughes PF, Osada T, Yang XY, Hartman ZC, Loiselle DR, Spector NL, Neckers L, Rajaram N, Hu F, Ramanujam N, Vaidyanathan G, Zalutsky MR, Lyerly HK, Haystead TA. Optical and radioiodinated tethered Hsp90 inhibitors reveal selective internalization of ectopic Hsp90 in malignant breast tumor cells. Chemistry & Biology. 20: 1187-97. PMID 24035283 DOI: 10.1016/j.chembiol.2013.08.004  0.64
2013 Brown JQ, Bydlon TM, Kennedy SA, Caldwell ML, Gallagher JE, Junker M, Wilke LG, Barry WT, Geradts J, Ramanujam N. Optical spectral surveillance of breast tissue landscapes for detection of residual disease in breast tumor margins. Plos One. 8: e69906. PMID 23922850 DOI: 10.1371/journal.pone.0069906  0.64
2013 Lo JY, Brown JQ, Dhar S, Yu B, Palmer GM, Jokerst NM, Ramanujam N. Wavelength optimization for quantitative spectral imaging of breast tumor margins. Plos One. 8: e61767. PMID 23613927 DOI: 10.1371/journal.pone.0061767  0.64
2013 Zhong J, Rajaram N, Brizel DM, Frees AE, Ramanujam N, Batinic-Haberle I, Dewhirst MW. Radiation induces aerobic glycolysis through reactive oxygen species. Radiotherapy and Oncology : Journal of the European Society For Therapeutic Radiology and Oncology. 106: 390-6. PMID 23541363 DOI: 10.1016/j.radonc.2013.02.013  0.64
2013 Fu HL, Mueller JL, Javid M, Kirsch DG, Ramanujam N, Brown JQ. Optimization of illumination frequency and preclinical validation of a wide-field structured illumination microscope designed for imaging in situ tumor margins Cleo: Applications and Technology, Cleo_at 2013 0.64
2013 Fu HL, Mueller JL, Javid M, Kirsch DG, Ramanujam N, Brown JQ. Optimization of illumination frequency and preclinical validation of a wide-field structured illumination microscope designed for imaging in situ tumor margins Cleo: Applications and Technology, Cleo_at 2013. ATh1N.3.  0.64
2012 Bydlon TM, Barry WT, Kennedy SA, Brown JQ, Gallagher JE, Wilke LG, Geradts J, Ramanujam N. Advancing optical imaging for breast margin assessment: an analysis of excisional time, cautery, and patent blue dye on underlying sources of contrast. Plos One. 7: e51418. PMID 23251526 DOI: 10.1371/journal.pone.0051418  0.64
2012 Dhar S, Lo JY, Palmer GM, Brooke MA, Nichols BS, Yu B, Ramanujam N, Jokerst NM. A diffuse reflectance spectral imaging system for tumor margin assessment using custom annular photodiode arrays. Biomedical Optics Express. 3: 3211-22. PMID 23243571 DOI: 10.1364/BOE.3.003211  0.64
2012 Liu C, Rajaram N, Vishwanath K, Jiang T, Palmer GM, Ramanujam N. Experimental validation of an inverse fluorescence Monte Carlo model to extract concentrations of metabolically relevant fluorophores from turbid phantoms and a murine tumor model. Journal of Biomedical Optics. 17: 077012. PMID 22894524 DOI: 10.1117/1.JBO.17.7.077012  0.64
2012 Lo JY, Dhar S, Yu B, Brooke MA, Kuech TF, Jokerst NM, Ramanujam N. Diffuse reflectance spectral imaging for breast tumor margin assessment Progress in Biomedical Optics and Imaging - Proceedings of Spie. 8214. DOI: 10.1117/12.909259  0.64
2012 Jiang T, Rajaram N, Liu C, Hu F, Ramanujam N. In vivo quantification of tumor metabolic demand in preclinical models using optical spectroscopy Digital Holography and Three-Dimensional Imaging, Dh 2012 0.64
2012 Hu F, Vishwanath K, Phelps JE, Lo J, Lee WT, Ramanujam N. Rapid determination of tissue hemoglobin concentration and oxygen saturation of head and neck cancers for global health applications Biomedical Optics, Biomed 2012. BW3B.4.  0.64
2011 Chang VT, Merisier D, Yu B, Walmer DK, Ramanujam N. Towards a field-compatible optical spectroscopic device for cervical cancer screening in resource-limited settings: effects of calibration and pressure. Optics Express. 19: 17908-24. PMID 21935155  0.64
2011 Vishwanath K, Chang K, Klein D, Deng YF, Chang V, Phelps JE, Ramanujam N. Portable, Fiber-Based, Diffuse Reflection Spectroscopy (DRS) Systems for Estimating Tissue Optical Properties. Applied Spectroscopy. 62: 206-215. PMID 21499501 DOI: 10.1366/10-06052  0.64
2011 Yu B, Fu HL, Ramanujam N. Instrument independent diffuse reflectance spectroscopy. Journal of Biomedical Optics. 16: 011010. PMID 21280897 DOI: 10.1117/1.3524303  0.64
2011 Millon SR, Ostrander JH, Brown JQ, Raheja A, Seewaldt VL, Ramanujam N. Uptake of 2-NBDG as a method to monitor therapy response in breast cancer cell lines. Breast Cancer Research and Treatment. 126: 55-62. PMID 20390344 DOI: 10.1007/s10549-010-0884-1  0.64
2011 Harmany ZT, Mueller J, Brown Q, Ramanujam N, Willett R. Tissue quantification in photon-limited microendoscopy Proceedings of Spie - the International Society For Optical Engineering. 8138. DOI: 10.1117/12.892856  0.64
2011 Chang VTC, Merisier D, Yu B, Walmer DK, Ramanujam N. Calibration schemes of a field-compatible optical spectroscopic system to quantify neovascular changes in the dysplastic cervix Progress in Biomedical Optics and Imaging - Proceedings of Spie. 7891. DOI: 10.1117/12.875855  0.64
2011 Kennedy S, Mueller J, Bydlon T, Brown JQ, Ramanujam N. Using wide-field quantitative diffuse reflectance spectroscopy in combination with high-resolution imaging for margin assessment Progress in Biomedical Optics and Imaging - Proceedings of Spie. 7890. DOI: 10.1117/12.875735  0.64
2011 Lo JY, Yu B, Kuech TF, Ramanujam N. A compact, cost-effective diffuse reflectance spectroscopic imaging system for quantitative tissue absorption and scattering Progress in Biomedical Optics and Imaging - Proceedings of Spie. 7890. DOI: 10.1117/12.873617  0.64
2011 Dhar S, Lo JY, Yu B, Brooke MA, Ramanujam N, Jokerst NM. Custom annular photodetector arrays for breast cancer margin assessment using diffuse reflectance spectroscopy 2011 Ieee Biomedical Circuits and Systems Conference, Biocas 2011. 440-443. DOI: 10.1109/BioCAS.2011.6107822  0.64
2011 Ramanujam N, Popp J. Introduction Progress in Biomedical Optics and Imaging - Proceedings of Spie. 8087.  0.64
2010 Brown JQ, Bydlon TM, Richards LM, Yu B, Kennedy SA, Geradts J, Wilke LG, Junker M, Gallagher J, Barry W, Ramanujam N. Optical assessment of tumor resection margins in the breast. Ieee Journal of Selected Topics in Quantum Electronics : a Publication of the Ieee Lasers and Electro-Optics Society. 16: 530-544. PMID 21544237  0.44
2010 Chang VT, Bean SM, Cartwright PS, Ramanujam N. Visible light optical spectroscopy is sensitive to neovascularization in the dysplastic cervix. Journal of Biomedical Optics. 15: 057006. PMID 21054122 DOI: 10.1117/1.3495730  0.64
2010 Phelps JE, Vishwanath K, Chang VT, Ramanujam N. Rapid ratiometric determination of hemoglobin concentration using UV-VIS diffuse reflectance at isosbestic wavelengths. Optics Express. 18: 18779-92. PMID 20940771 DOI: 10.1364/OE.18.018779  0.64
2010 Bydlon TM, Kennedy SA, Richards LM, Brown JQ, Yu B, Junker MK, Gallagher J, Geradts J, Wilke LG, Ramanujam N. Performance metrics of an optical spectral imaging system for intra-operative assessment of breast tumor margins. Optics Express. 18: 8058-76. PMID 20588651  0.64
2010 Fu HL, Yu B, Lo JY, Palmer GM, Kuech TF, Ramanujam N. A low-cost, portable, and quantitative spectral imaging system for application to biological tissues. Optics Express. 18: 12630-45. PMID 20588390 DOI: 10.1364/OE.18.012630  0.64
2010 Ostrander JH, McMahon CM, Lem S, Millon SR, Brown JQ, Seewaldt VL, Ramanujam N. Optical redox ratio differentiates breast cancer cell lines based on estrogen receptor status. Cancer Research. 70: 4759-66. PMID 20460512 DOI: 10.1158/0008-5472.CAN-09-2572  0.64
2010 Millon SR, Ostrander JH, Yazdanfar S, Brown JQ, Bender JE, Rajeha A, Ramanujam N. Preferential accumulation of 5-aminolevulinic acid-induced protoporphyrin IX in breast cancer: a comprehensive study on six breast cell lines with varying phenotypes. Journal of Biomedical Optics. 15: 018002. PMID 20210488 DOI: 10.1117/1.3302811  0.64
2010 Gill EM, Straseski JA, Rasmussen CA, Liliensiek SJ, Eliceiri KW, Ramanujam N, White JG, Allen-Hoffmann BL. Visualization of morphological and molecular features associated with chronic ischemia in bioengineered human skin. Microscopy and Microanalysis : the Official Journal of Microscopy Society of America, Microbeam Analysis Society, Microscopical Society of Canada. 16: 117-31. PMID 20199713 DOI: 10.1017/S1431927610000103  0.64
2010 Skala M, Ramanujam N. Multiphoton redox ratio imaging for metabolic monitoring in vivo. Methods in Molecular Biology (Clifton, N.J.). 594: 155-62. PMID 20072916 DOI: 10.1007/978-1-60761-411-1_11  0.64
2009 Bender JE, Shang AB, Moretti EW, Yu B, Richards LM, Ramanujam N. Noninvasive monitoring of tissue hemoglobin using UV-VIS diffuse reflectance spectroscopy: a pilot study. Optics Express. 17: 23396-409. PMID 20052047 DOI: 10.1364/OE.17.023396  0.64
2009 Ramanujam N, Brown J, Bydlon TM, Kennedy SA, Richards LM, Junker MK, Gallagher J, Barry WT, Wilke LG, Geradts J. Quantitative spectral reflectance imaging device for intraoperative breast tumor margin assessment. Conference Proceedings : ... Annual International Conference of the Ieee Engineering in Medicine and Biology Society. Ieee Engineering in Medicine and Biology Society. Annual Conference. 2009: 6554-6. PMID 19964903 DOI: 10.1109/IEMBS.2009.5334501  0.64
2009 Vishwanath K, Klein D, Chang K, Schroeder T, Dewhirst MW, Ramanujam N. Quantitative optical spectroscopy can identify long-term local tumor control in irradiated murine head and neck xenografts. Journal of Biomedical Optics. 14: 054051. PMID 19895152 DOI: 10.1117/1.3251013  0.64
2009 Wilke LG, Brown JQ, Bydlon TM, Kennedy SA, Richards LM, Junker MK, Gallagher J, Barry WT, Geradts J, Ramanujam N. Rapid noninvasive optical imaging of tissue composition in breast tumor margins. American Journal of Surgery. 198: 566-74. PMID 19800470 DOI: 10.1016/j.amjsurg.2009.06.018  0.64
2009 Vishwanath K, Yuan H, Barry WT, Dewhirst MW, Ramanujam N. Using optical spectroscopy to longitudinally monitor physiological changes within solid tumors. Neoplasia (New York, N.Y.). 11: 889-900. PMID 19724683 DOI: 10.1593/neo.09580  0.64
2009 Bender JE, Vishwanath K, Moore LK, Brown JQ, Chang V, Palmer GM, Ramanujam N. A robust Monte Carlo model for the extraction of biological absorption and scattering in vivo. Ieee Transactions On Bio-Medical Engineering. 56: 960-8. PMID 19423425 DOI: 10.1109/TBME.2008.2005994  0.64
2009 Palmer GM, Viola RJ, Schroeder T, Yarmolenko PS, Dewhirst MW, Ramanujam N. Quantitative diffuse reflectance and fluorescence spectroscopy: tool to monitor tumor physiology in vivo. Journal of Biomedical Optics. 14: 024010. PMID 19405740 DOI: 10.1117/1.3103586  0.64
2009 Chang VT, Cartwright PS, Bean SM, Palmer GM, Bentley RC, Ramanujam N. Quantitative physiology of the precancerous cervix in vivo through optical spectroscopy. Neoplasia (New York, N.Y.). 11: 325-32. PMID 19308287  0.64
2009 Brown JQ, Wilke LG, Geradts J, Kennedy SA, Palmer GM, Ramanujam N. Quantitative optical spectroscopy: a robust tool for direct measurement of breast cancer vascular oxygenation and total hemoglobin content in vivo. Cancer Research. 69: 2919-26. PMID 19293184 DOI: 10.1158/0008-5472.CAN-08-3370  0.64
2009 Zhu C, Burnside ES, Sisney GA, Salkowski LR, Harter JM, Yu B, Ramanujam N. Fluorescence spectroscopy: an adjunct diagnostic tool to image-guided core needle biopsy of the breast. Ieee Transactions On Bio-Medical Engineering. 56: 2518-28. PMID 19272976 DOI: 10.1109/TBME.2009.2015936  0.32
2009 Brown JQ, Vishwanath K, Palmer GM, Ramanujam N. Advances in quantitative UV-visible spectroscopy for clinical and pre-clinical application in cancer. Current Opinion in Biotechnology. 20: 119-31. PMID 19268567 DOI: 10.1016/j.copbio.2009.02.004  0.64
2009 Lo JY, Yu B, Fu HL, Bender JE, Palmer GM, Kuech TF, Ramanujam N. A strategy for quantitative spectral imaging of tissue absorption and scattering using light emitting diodes and photodiodes. Optics Express. 17: 1372-84. PMID 19188966 DOI: 10.1364/OE.17.001372  0.64
2008 Yu B, Lo JY, Kuech TF, Palmer GM, Bender JE, Ramanujam N. Cost-effective diffuse reflectance spectroscopy device for quantifying tissue absorption and scattering in vivo. Journal of Biomedical Optics. 13: 060505. PMID 19123646 DOI: 10.1117/1.3041500  0.64
2008 Lazebnik M, Zhu C, Palmer GM, Harter J, Sewall S, Ramanujam N, Hagness SC. Electromagnetic spectroscopy of normal breast tissue specimens obtained from reduction surgeries: comparison of optical and microwave properties. Ieee Transactions On Bio-Medical Engineering. 55: 2444-51. PMID 18838370 DOI: 10.1109/TBME.2008.925700  0.64
2008 Zhu C, Breslin TM, Harter J, Ramanujam N. Model based and empirical spectral analysis for the diagnosis of breast cancer. Optics Express. 16: 14961-78. PMID 18795033 DOI: 10.1364/OE.16.014961  0.64
2008 Yu B, Fu H, Bydlon T, Bender JE, Ramanujam N. Diffuse reflectance spectroscopy with a self-calibrating fiber optic probe. Optics Letters. 33: 1783-5. PMID 18709086 DOI: 10.1364/OL.33.001783  0.64
2008 Zhu C, Palmer GM, Breslin TM, Harter J, Ramanujam N. Diagnosis of breast cancer using fluorescence and diffuse reflectance spectroscopy: a Monte-Carlo-model-based approach. Journal of Biomedical Optics. 13: 034015. PMID 18601560 DOI: 10.1117/1.2931078  0.64
2008 Palmer GM, Ramanujam N. Monte-Carlo-based model for the extraction of intrinsic fluorescence from turbid media. Journal of Biomedical Optics. 13: 024017. PMID 18465980 DOI: 10.1117/1.2907161  0.64
2008 Yu B, Fu H, Bydlon T, Bender J, Ramanujam N. A self-calibrating fiber optic probe for tissue optical spectroscopy Optics Infobase Conference Papers. DOI: 10.1109/CLEO.2008.4551409  0.64
2008 Ramanujam N. Optical biomarkers in breast cancer Biomedical Optics, Biomed 2008 0.64
2008 Bender JE, Moore LK, Vishwanath K, Ramanujam N. Factors influencing the accuracy of determining tissue physiology quantitatively using optical spectroscopy Biomedical Optics, Biomed 2008 0.64
2008 Lo JY, Yu B, Palmer GM, Kuech TF, Ramanujam N. A miniature optical device for noninvasive, fast characterization of tumor pathology Biomedical Optics, Biomed 2008. BTuF55.  0.64
2008 Vishwanath K, Yuan H, Moore L, Bender J, Dewhirst M, Ramanujam N. Longitudinal monitoring of 4t1-tumor physiology in vivo with doxorubicin treatment via diffuse optical spectroscopy Biomedical Optics, Biomed 2008 0.64
2007 Yu B, Burnside ES, Sisney GA, Harter JM, Zhu C, Dhalla AH, Ramanujam N. Feasibility of near-infrared diffuse optical spectroscopy on patients undergoing imageguided core-needle biopsy. Optics Express. 15: 7335-50. PMID 19547057  0.32
2007 Skala MC, Riching KM, Gendron-Fitzpatrick A, Eickhoff J, Eliceiri KW, White JG, Ramanujam N. In vivo multiphoton microscopy of NADH and FAD redox states, fluorescence lifetimes, and cellular morphology in precancerous epithelia. Proceedings of the National Academy of Sciences of the United States of America. 104: 19494-9. PMID 18042710 DOI: 10.1073/pnas.0708425104  0.64
2007 Skala MC, Palmer GM, Vrotsos KM, Gendron-Fitzpatrick A, Ramanujam N. Comparison of a physical model and principal component analysis for the diagnosis of epithelial neoplasias in vivo using diffuse reflectance spectroscopy. Optics Express. 15: 7863-75. PMID 17912337 DOI: 10.1364/OE.15.007863  0.64
2007 Palmer GM, Ramanujam N. Use of genetic algorithms to optimize fiber optic probe design for the extraction of tissue optical properties. Ieee Transactions On Bio-Medical Engineering. 54: 1533-5. PMID 17694876 DOI: 10.1109/TBME.2006.889779  0.64
2007 Skala MC, Riching KM, Bird DK, Gendron-Fitzpatrick A, Eickhoff J, Eliceiri KW, Keely PJ, Ramanujam N. In vivo multiphoton fluorescence lifetime imaging of protein-bound and free nicotinamide adenine dinucleotide in normal and precancerous epithelia. Journal of Biomedical Optics. 12: 024014. PMID 17477729 DOI: 10.1117/1.2717503  0.64
2007 Liu Q, Ramanujam N. Scaling method for fast Monte Carlo simulation of diffuse reflectance spectra from multilayered turbid media. Journal of the Optical Society of America. a, Optics, Image Science, and Vision. 24: 1011-25. PMID 17361287 DOI: 10.1364/JOSAA.24.001011  0.64
2007 Liu Q, Ramanujam N. A scaling Monte Carlo method for diffuse reflectance computation from multi-layered media Progress in Biomedical Optics and Imaging - Proceedings of Spie. 6435. DOI: 10.1117/12.708574  0.64
2007 Chang VTC, Cartwright P, Ramanujam N. In Vivo estimation of total hemoglobin concentration and hemoglobin saturation in the detection of cervical epithelial pre-cancers Optics Infobase Conference Papers 0.64
2006 Millon SR, Roldan-Perez KM, Riching KM, Palmer GM, Ramanujam N. Effect of optical clearing agents on the in vivo optical properties of squamous epithelial tissue. Lasers in Surgery and Medicine. 38: 920-7. PMID 17163473 DOI: 10.1002/lsm.20451  0.64
2006 Zhu C, Palmer GM, Breslin TM, Harter J, Ramanujam N. Diagnosis of breast cancer using diffuse reflectance spectroscopy: Comparison of a Monte Carlo versus partial least squares analysis based feature extraction technique. Lasers in Surgery and Medicine. 38: 714-24. PMID 16799981 DOI: 10.1002/lsm.20356  0.64
2006 Liu Q, Ramanujam N. Sequential estimation of optical properties of a two-layered epithelial tissue model from depth-resolved ultraviolet-visible diffuse reflectance spectra. Applied Optics. 45: 4776-90. PMID 16799693 DOI: 10.1364/AO.45.004776  0.64
2006 Palmer GM, Zhu C, Breslin TM, Xu F, Gilchrist KW, Ramanujam N. Monte Carlo-based inverse model for calculating tissue optical properties. Part II: Application to breast cancer diagnosis. Applied Optics. 45: 1072-8. PMID 16512551 DOI: 10.1364/AO.45.001072  0.64
2006 Palmer GM, Ramanujam N. Monte Carlo-based inverse model for calculating tissue optical properties. Part I: Theory and validation on synthetic phantoms. Applied Optics. 45: 1062-71. PMID 16512550 DOI: 10.1364/AO.45.001062  0.64
2006 Liu Q, Ramanujam N. Angled probe design for scattering measurements from a small tissue volume Optics Infobase Conference Papers 0.64
2006 Liu Q, Ramanujam N. Sequential estimation of optical properties of a two-layered epithelial tissue model from depth-sensitive ultraviolet-visible diffuse reflectance spectra Optics Infobase Conference Papers 0.64
2006 Ramanujam N, Brown JQ. Physiologic, metabolic, and structural alterations in breast cancer: Assessment via optical technologies Optics Infobase Conference Papers 0.64
2006 Palmer GM, Ramanujam N. Monte carlo based model of fluorescence: Theory and application to breast cancer diagnosis Optics Infobase Conference Papers 0.64
2006 Zhu C, Burnside E, Sisney G, Harter J, Ramanujam N. In vivo fluorescence spectroscopy during breast core needle biopsy Optics Infobase Conference Papers 0.64
2005 Bird DK, Yan L, Vrotsos KM, Eliceiri KW, Vaughan EM, Keely PJ, White JG, Ramanujam N. Metabolic mapping of MCF10A human breast cells via multiphoton fluorescence lifetime imaging of the coenzyme NADH. Cancer Research. 65: 8766-73. PMID 16204046 DOI: 10.1158/0008-5472.CAN-04-3922  0.64
2005 Zhu C, Palmer GM, Breslin TM, Xu F, Ramanujam N. Use of a multiseparation fiber optic probe for the optical diagnosis of breast cancer. Journal of Biomedical Optics. 10: 024032. PMID 15910105 DOI: 10.1117/1.1897398  0.64
2005 Skala MC, Squirrell JM, Vrotsos KM, Eickhoff JC, Gendron-Fitzpatrick A, Eliceiri KW, Ramanujam N. Multiphoton microscopy of endogenous fluorescence differentiates normal, precancerous, and cancerous squamous epithelial tissues. Cancer Research. 65: 1180-6. PMID 15735001 DOI: 10.1158/0008-5472.CAN-04-3031  0.64
2004 Liu Q, Ramanujam N. Experimental proof of the feasibility of using an angled fiber-optic probe for depth-sensitive fluorescence spectroscopy of turbid media. Optics Letters. 29: 2034-6. PMID 15455771 DOI: 10.1364/OL.29.002034  0.64
2004 Lubawy C, Ramanujam N. Endoscopically compatible near-infrared photon migration probe. Optics Letters. 29: 2022-4. PMID 15455767 DOI: 10.1364/OL.29.002022  0.64
2004 Skala MC, Palmer GM, Zhu C, Liu Q, Vrotsos KM, Marshek-Stone CL, Gendron-Fitzpatrick A, Ramanujam N. Investigation of fiber-optic probe designs for optical spectroscopic diagnosis of epithelial pre-cancers. Lasers in Surgery and Medicine. 34: 25-38. PMID 14755422 DOI: 10.1002/lsm.10239  0.64
2004 Breslin TM, Xu F, Palmer GM, Zhu C, Gilchrist KW, Ramanujam N. Autofluorescence and diffuse reflectance properties of malignant and benign breast tissues. Annals of Surgical Oncology. 11: 65-70. PMID 14699036 DOI: 10.1007/BF02524348  0.64
2003 Palmer GM, Keely PJ, Breslin TM, Ramanujam N. Autofluorescence spectroscopy of normal and malignant human breast cell lines. Photochemistry and Photobiology. 78: 462-9. PMID 14653577 DOI: 10.1562/0031-8655(2003)078<0462:ASONAM>2.0.CO;2  0.64
2003 Palmer GM, Zhu C, Breslin TM, Xu F, Gilchrist KW, Ramanujam N. Comparison of multiexcitation fluorescence and diffuse reflectance spectroscopy for the diagnosis of breast cancer (March 2003). Ieee Transactions On Bio-Medical Engineering. 50: 1233-42. PMID 14619993 DOI: 10.1109/TBME.2003.818488  0.64
2003 Choe R, Durduran T, Yu G, Nijland MJ, Chance B, Yodh AG, Ramanujam N. Transabdominal near infrared oximetry of hypoxic stress in fetal sheep brain in utero. Proceedings of the National Academy of Sciences of the United States of America. 100: 12950-4. PMID 14563919 DOI: 10.1073/pnas.1735462100  0.64
2003 Gill EM, Malpica A, Alford RE, Nath AR, Follen M, Richards-Kortum RR, Ramanujam N. Relationship between collagen autofluorescence of the human cervix and menopausal status. Photochemistry and Photobiology. 77: 653-8. PMID 12870852 DOI: 10.1562/0031-8655(2003)077<0653:RBCAOT>2.0.CO;2  0.64
2003 Zhu C, Liu Q, Ramanujam N. Effect of fiber optic probe geometry on depth-resolved fluorescence measurements from epithelial tissues: a Monte Carlo simulation. Journal of Biomedical Optics. 8: 237-47. PMID 12683849 DOI: 10.1117/1.1559058  0.64
2003 Liu Q, Zhu C, Ramanujam N. Experimental validation of Monte Carlo modeling of fluorescence in tissues in the UV-visible spectrum. Journal of Biomedical Optics. 8: 223-36. PMID 12683848 DOI: 10.1117/1.1559057  0.64
2003 Gill EM, Palmer GM, Ramanujam N. Steady-state fluorescence imaging of neoplasia. Methods in Enzymology. 361: 452-81. PMID 12624924 DOI: 10.1016/S0076-6879(03)61023-2  0.64
2003 Palmer GM, Ramanujam N. Diagnosis of Breast Cancer Using Optical Spectroscopy Medical Laser Application. 18: 233-248. DOI: 10.1078/1615-1615-00106  0.64
2002 Quan L, Ramanujam N. Relationship between depth of a target in a turbid medium and fluorescence measured by a variable-aperture method. Optics Letters. 27: 104-6. PMID 18007726  0.64
2002 Palmer GM, Marshek CL, Vrotsos KM, Ramanujam N. Optimal methods for fluorescence and diffuse reflectance measurements of tissue biopsy samples. Lasers in Surgery and Medicine. 30: 191-200. PMID 11891738 DOI: 10.1002/lsm.10026  0.64
2002 Gu Y, Qian Z, Chen J, Blessington D, Ramanujam N, Chance B. High-resolution three-dimensional scanning optical image system for intrinsic and extrinsic contrast agents in tissue Review of Scientific Instruments. 73: 172. DOI: 10.1063/1.1424907  0.64
2002 Ramanujam N, Palmer G, Breslin T, Gichrist K. Diagnosis of breast cancer using auto fluorescence and diffuse reflectance spectroscopy Annual International Conference of the Ieee Engineering in Medicine and Biology - Proceedings. 3: 2279-2280.  0.64
2001 Ramanujam N, Chen J, Gossage K, Richards-Kortum R, Chance B. Fast and noninvasive fluorescence imaging of biological tissues in vivo using a flying-spot scanner. Ieee Transactions On Bio-Medical Engineering. 48: 1034-41. PMID 11534839 DOI: 10.1109/10.942594  0.64
2001 Vishnoi G, Choe R, Ramanujam N, Rode ME, Chance B. On-line monitoring of oxy- and deoxy-hemoglobin using Near Infra-red spectroscopic techniques Proceedings of Spie - the International Society For Optical Engineering. 4417: 493-499. DOI: 10.1117/12.441341  0.64
2001 Vishnoi G, Choe R, Ramanujam N, Rode ME, Nioka S, Chance B. Quantification of fetal blood parameters using non-invasive optical techniques Pacific Rim Conference On Lasers and Electro-Optics, Cleo - Technical Digest. 1: I380-I381.  0.64
2001 Ramanujam N, Richards-Kortum R, Thomsen S, Mahadevan-Jansen A, Follen M, Chance B. Low temperature fluorescence imaging of freeze-trapped human cervical tissues Optics Express. 8: 335-343.  0.64
2000 Jacques SL, Ramanujam N, Vishnoi G, Choe R, Chance B. Modeling photon transport in transabdominal fetal oximetry. Journal of Biomedical Optics. 5: 277-82. PMID 10958612 DOI: 10.1117/1.429996  0.64
2000 Ramanujam N, Vishnoi G, Hielscher A, Rode M, Forouzan I, Chance B. Photon migration through fetal head in utero using continuous wave, near infrared spectroscopy: clinical and experimental model studies. Journal of Biomedical Optics. 5: 173-84. PMID 10938781 DOI: 10.1117/1.429984  0.64
2000 Vishnoi G, Hielscher AH, Ramanujam N, Chance B. Photon migration through fetal head in utero using continuous wave, near-infrared spectroscopy: development and evaluation of experimental and numerical models. Journal of Biomedical Optics. 5: 163-72. PMID 10938780 DOI: 10.1117/1.429983  0.64
2000 Ramanujam N. Fluorescence spectroscopy of neoplastic and non-neoplastic tissues Neoplasia. 2: 89-117. PMID 10933071  0.64
1999 Ramanujam N, Long H, Rode M, Forouzan I, Morgan M, Chance B. Antepartum, transabdominal near infrared spectroscopy: feasibility of measuring photon migration through the fetal head in utero. The Journal of Maternal-Fetal Medicine. 8: 275-88. PMID 10582862 DOI: 10.1002/(SICI)1520-6661(199911/12)8:6<275::AID-MFM8>3.0.CO;2-X  0.64
1999 Mitchell MF, Cantor SB, Ramanujam N, Tortolero-Luna G, Richards-Kortum R. Fluorescence spectroscopy for diagnosis of squamous intraepithelial lesions of the cervix Obstetrics and Gynecology. 93: 462-470. PMID 10075001 DOI: 10.1016/S0029-7844(98)00385-8  0.64
1999 Yazdi Y, Ramanujam N, Lotan R, Mitchell MF, Hittelman W, Richards-Kortum R. Resonance Raman spectroscopy at 257 nm excitation of normal and malignant cultured breast and cervical cells Applied Spectroscopy. 53: 82-85.  0.64
1999 Zourabian A, Siegel A, Ramanujam N, Chance B, Boas DA, Vishnoi BG, Choe R. Non-invasive trans-abdominal monitoring of fetal cerebral oxygenation using pulse oximetry Proceedings of Spie - the International Society For Optical Engineering. 3597: 669-675.  0.64
1998 Mahadevan-Jansen A, Mitchell MF, Ramanujam N, Utzinger U, Richards-Kortum R. Development of a Fiber Optic Probe to Measure NIR Raman Spectra of Cervical Tissue in Vivo Photochemistry and Photobiology. 68: 427-431. PMID 9747597  0.64
1998 Turner K, Ramanujam N, Ghosh J, Richards-Kortum R. Ensembles of radial basis function networks for spectroscopic detection of cervical precancer Ieee Transactions On Biomedical Engineering. 45: 953-961. PMID 9691570 DOI: 10.1109/10.704864  0.64
1998 Chance B, Cope M, Gratton E, Ramanujam N, Tromberg B. Phase measurement of light absorption and scatter in human tissue Review of Scientific Instruments. 69: 3457-3481. DOI: 10.1063/1.1149123  0.64
1998 Ramanujam N, Du C, Ma HY, Chance B. Sources of phase noise in homodyne and heterodyne phase modulation devices used for tissue oximetry studies Review of Scientific Instruments. 69: 3042-3054.  0.64
1998 Trujillo EV, Sandison DR, Utzinger U, Ramanujam N, Mitchell MF, Richards-Kortum R. Method to determine tissue fluorescence efficiency in vivo and predict signal-to-noise ratio for spectrometers Applied Spectroscopy. 52: 943-951.  0.64
1997 Turner K, Ramanujam N, Richards-Kortum R, Ghosh J. Spectroscopic detection of cervical pre-cancer through radial basis function networks Advances in Neural Information Processing Systems. 981-987.  0.64
1996 Richards-Kortum R, Mahadevan-Jansen A, Ramanujam N. Optical spectroscopy vs. the surgical suite Ieee Circuits and Devices Magazine. 12: 34-40. DOI: 10.1109/101.526878  0.64
1996 Trujillo EV, Sandison D, Ramanujam N, Follen-Mitchell M, Cantor S, Richards-Kortum R. Development of a cost-effective optical system for detection of cervical pre-cancer Annual International Conference of the Ieee Engineering in Medicine and Biology - Proceedings. 191-193.  0.64
1995 Atkinson EN, Mitchell MF, Ramanujam N, Richards-Kortum R. Statistical techniques for diagnosing CIN using fluorescence spectroscopy: SVD and CART Journal of Cellular Biochemistry. 59: 125-130. PMID 8747386  0.64
1994 Ramanujam N, Mitchell MF, Mahadevan A, Thomsen S, Silva E, Richards-Kortum R. Fluorescence Spectroscopy: A Diagnostic Tool for Cervical Intraepithelial Neoplasia (CIN) Gynecologic Oncology. 52: 31-38. PMID 8307499 DOI: 10.1006/gyno.1994.1007  0.64
1994 Richards-Kortum R, Mitchell MF, Ramanujam N, Mahadevan A, Thomsen S. In vivo fluorescence spectroscopy: potential for non-invasive, automated diagnosis of cervical intraepithelial neoplasia and use as a surrogate endpoint biomarker Journal of Cellular Biochemistry. Supplement. 19: 111-119. PMID 7823582  0.64
1994 Durkin AJ, Jaikumar S, Ramanujam N, Richards-Kortum R. Relationship between fluorescence spectra of dilute and turbid samples Applied Optics. 33: 414-423. DOI: 10.1364/AO.33.000414  0.64
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