Sangtae Ahn
Sangtae Ahn
GE Research
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Globally convergent image reconstruction for emission tomography using relaxed ordered subsets algorithms
S Ahn, JA Fessler
IEEE Transactions on Medical Imaging 22 (5), 613-626, 2003
Zero TE MR bone imaging in the head
F Wiesinger, LI Sacolick, A Menini, SS Kaushik, S Ahn, P Veit‐Haibach, ...
Magnetic Resonance in Medicine 75 (1), 107-114, 2016
Standard errors of mean, variance, and standard deviation estimators
S Ahn, JA Fessler
Technical Report 413, Communications and Signal Processing Lab., Univ. of …, 2003
A simple model to estimate the impact force induced by piston slap
SH Cho, ST Ahn, YH Kim
Journal of Sound and Vibration 255 (2), 229-242, 2002
Convergent incremental optimization transfer algorithms: Application to tomography
S Ahn, JA Fessler, D Blatt, AO Hero
IEEE Transactions on Medical Imaging 25 (3), 283-296, 2006
Joint L1 and total variation regularization for fluorescence molecular tomography
J Dutta, S Ahn, C Li, SR Cherry, RM Leahy
Physics in Medicine and Biology 57 (6), 1459-1476, 2012
Quantitative comparison of OSEM and penalized likelihood image reconstruction using relative difference penalties for clinical PET
S Ahn, SG Ross, E Asma, J Miao, X Jin, L Cheng, SD Wollenweber, ...
Physics in Medicine and Biology 60 (15), 5733-5751, 2015
A three-dimensional multispectral fluorescence optical tomography imaging system for small animals based on a conical mirror design
C Li, GS Mitchell, J Dutta, S Ahn, RM Leahy, SR Cherry
Optics Express 17 (9), 7571-7585, 2009
A genome-wide map of human genetic interactions inferred from radiation hybrid genotypes
A Lin, RT Wang, S Ahn, CC Park, DJ Smith
Genome Research 20 (8), 1122-1132, 2010
Zero TE‐based pseudo‐CT image conversion in the head and its application in PET/MR attenuation correction and MR‐guided radiation therapy planning
F Wiesinger, M Bylund, J Yang, S Kaushik, D Shanbhag, S Ahn, ...
Magnetic resonance in medicine 80 (4), 1440-1451, 2018
Fast iterative image reconstruction methods for fully 3D multispectral bioluminescence tomography
S Ahn, AJ Chaudhari, F Darvas, CA Bouman, RM Leahy
Physics in Medicine and Biology 53 (14), 3921-3942, 2008
A fast fully 4D incremental gradient reconstruction algorithm for list mode PET data
Q Li, E Asma, S Ahn, RM Leahy
IEEE Transactions on Medical Imaging 26 (1), 58-67, 2007
Analysis of resolution and noise properties of nonquadratically regularized image reconstruction methods for PET
S Ahn, RM Leahy
IEEE Transactions on Medical Imaging 27 (3), 413-424, 2008
Illumination pattern optimization for fluorescence tomography: theory and simulation studies
J Dutta, S Ahn, AA Joshi, RM Leahy
Physics in Medicine and Biology 55 (10), 2961-2982, 2010
Quantitative statistical methods for image quality assessment
J Dutta, S Ahn, Q Li
Theranostics 3 (10), 741-756, 2013
Impact of PSF modelling on the convergence rate and edge behaviour of EM images in PET
K Thielemans, E Asma, S Ahn, RM Manjeshwar, T Deller, SG Ross, ...
IEEE Nuclear Science Symposuim & Medical Imaging Conference (NSS-MIC), 3267-3272, 2010
Excitation spectroscopy in multispectral optical fluorescence tomography: methodology, feasibility and computer simulation studies
AJ Chaudhari, S Ahn, R Levenson, RD Badawi, SR Cherry, RM Leahy
Physics in Medicine and Biology 54 (15), 4687-4704, 2009
Accurate and consistent lesion quantitation with clinically acceptable penalized likelihood images
E Asma, S Ahn, SG Ross, A Chen, RM Manjeshwar
IEEE Nuclear Science Symposium & Medical Imaging Conference (NSS-MIC), 4062-4066, 2012
Fine mapping of regulatory loci for mammalian gene expression using radiation hybrids
CC Park, S Ahn, JS Bloom, A Lin, RT Wang, T Wu, A Sekar, AH Khan, ...
Nature Genetics 40 (4), 421-429, 2008
Joint estimation of activity and attenuation for PET using pragmatic MR-based prior: application to clinical TOF PET/MR whole-body data for FDG and non-FDG tracers
S Ahn, L Cheng, DD Shanbhag, H Qian, SS Kaushik, FP Jansen, ...
Physics in Medicine & Biology 63 (4), 045006, 2018
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