R.M. Lewitt

University of Pennsylvania — United States

Medicine · Health Sciences

30h-index3.9kcitations79works0.02yr avg
OpenAlex↗Google Scholar↗Lab page↗

Accepting Students?

No reports yet. Know if this professor is taking students?

Research Topics

Medical Imaging Techniques and Applications(70), Advanced MRI Techniques and Applications(26), Advanced X-ray and CT Imaging(24), Radiation Detection and Scintillator Technologies(17), Medical Image Segmentation Techniques(13)

Publications79 total

Modeling and simulation of Compton scatter image formation in positron emission tomography
Journal of Inverse and Ill-Posed Problems·2020· 2 citedOpen Access
System models for PET statistical iterative reconstruction: A review
Computerized Medical Imaging and Graphics·2015· 50 cited
Efficient 3-D TOF PET Reconstruction Using View-Grouped Histo-Images: DIRECT—Direct Image Reconstruction for TOF
IEEE Transactions on Medical Imaging·2009· 87 citedOpen Access
Preliminary assessment of multislit-slat collimation for cardiac SPECT
2007· 1 cited
Small nodule detectability evaluation using a generalized scan-statistic model
Physics in Medicine and Biology·2006· 43 cited
PET energy-based scatter estimation and image reconstruction with energy-dependent corrections
Physics in Medicine and Biology·2006· 47 cited
Energy-Based Scatter Correction and Energy Dependent Image Reconstruction for PET Scanners
2006
Optimization of 3D TOF PET Reconstruction Using a Limited Number of 2D Histoprojections
2006· 6 cited
Mathematical Aspects of 2D PET Using Dual Curvilinear Detectors
2006
Fast reconstruction of 3D time-of-flight PET data by axial rebinning and transverse mashing
Physics in Medicine and Biology·2006· 85 cited
Inversion of 2D planogram data for finite-length detectors
IEEE Transactions on Nuclear Science·2006· 1 cited
Geometric model of single scatter in PET
2006 IEEE Nuclear Science Symposium Conference Record·2006· 4 cited
Comparison between TOF and non-TOF PET using a scan statistic numerical observer
2006 IEEE Nuclear Science Symposium Conference Record·2006· 8 cited
Resolution Improvement In Spect By Spatial Filtering
2005· 3 cited
Iterative Correction For Spatial Collimator Blurring In SPECT
1990 IEEE Nuclear Science Symposium Conference Record·2005· 6 cited
Study of different pinhole configurations for small animal tumor imaging
IEEE Symposium Conference Record Nuclear Science 2004.·2005· 21 cited
Inversion of 2D planogram data for finite-length detectors
IEEE Symposium Conference Record Nuclear Science 2004.·2005· 1 cited
Ray tracing through a grid of blobs
IEEE Symposium Conference Record Nuclear Science 2004.·2005· 29 cited
Iterative image reconstruction using geometrically ordered subsets with list-mode data
IEEE Symposium Conference Record Nuclear Science 2004.·2005· 99 cited
Optimal Ordering of Projections using Permutation Matrices and Angles between Projection Subspaces
Electronic Notes in Discrete Mathematics·2005· 24 cited
page 1 of 4Next →

Frequent Co-authors

Samuel Matej(18), Gábor T. Herman(12), Joel S. Karp(12), G. Muehllehner(6), Lucreţiu M. Popescu(6), Paul E. Kinahan(5), P. Edholm(4), Margaret E. Daube-Witherspoon(4), Yair Censor(4), Weishi Xia(3), T. K. Narayan(3), S.S. Furuie(2), T.M. Peters(2), R. Freifelder(2), Michael Geagan(2), R. Marabini(2), Martin D. Altschuler(2), Hoàng Tụy(2), Jayaram K. Udupa(2), Russell Bates(2)