An iterative reconstruction algorithm for single photon emission computed tomography with cone beam geometry. - Grant T. Gullberg; Gengsheng L. Zeng; Benjamin M. W. Tsui; John T. Hagius (Int. J. Imaging Syst. Technol., 1989)

Short-scan cone beam algorithm for circular and noncircular detector orbits. - Gengsheng Larry Zeng; Grant T. Gullberg (Image Processing, 1990)

Cone Beam Single Photon Emission Computed Tomography Using Two Orbits. - R. Clack; Gengsheng L. Zeng; Y. Weng; Paul E. Christian; Grant T. Gullberg (IPMI, 1991)

The use of computer-assisted diagnosis in cardiac-perfusion nuclear medicine studies: A review. - Frederick L. Datz; Frank V. Gabor; Paul E. Christian; Grant T. Gullberg; Carol E. Menzel; Kathryn A. Morton (J. Digit. Imaging, 1992)

A cone-beam filtered backprojection reconstruction algorithm for cardiac single photon emission computed tomography. - Grant T. Gullberg; Gengsheng Lawrence Zeng (IEEE Trans. Medical Imaging, 1992)

The use of computer-assisted diagnosis in cardiac perfusion nuclear medicine studies: A review (Part 2). - Frederick L. Datz; Frank V. Gabor; Paul E. Christian; Grant T. Gullberg; Carol E. Menzel; Kathryn A. Morton (J. Digit. Imaging, 1993)

The use of computer-assisted diagnosis in cardiac perfusion nuclear medicine studies: A review (part 3). - Frederick L. Datz; Charles Rosenberg; Frank V. Gabor; Paul E. Christian; Grant T. Gullberg; Raj Ahluwalia; Kathryn A. Morton (J. Digit. Imaging, 1993)

Fan-beam reconstruction algorithm for a spatially varying focal length collimator. - Gengsheng Lawrence Zeng; Grant T. Gullberg; Ronald J. Jaszczak; Jianying Li (IEEE Trans. Medical Imaging, 1993)

A backprojection filtering algorithm for a spatially varying focal length collimator. - Gengsheng L. Zeng; Grant T. Gullberg (IEEE Trans. Medical Imaging, 1994)

Parallel Least Squares Estimates of 2-D SPECT Image Reconstructions on the SGI Power Challenge. - Stefano Foresti; Larry Zeng; Grant T. Gullberg; Ronald H. Huesman (PARA, 1996)

Toward Accurate Attenuation Correction in SPECT Without Transmission Measurements. - Andy Welch; R. Clack; Frank Natterer; Grant T. Gullberg (IEEE Trans. Medical Imaging, 1997)

Implementation of a Model-Based Nonuniform Scatter Correction Scheme for SPECT. - Andy Welch; Grant T. Gullberg (IEEE Trans. Medical Imaging, 1997)

Projection Space Image Reconstruction using Strip Functions to Calculate Pixels More "Natural" for Modeling the Geometric Response of the SPECT Collimator. - Yu-Lung Hsieh; Gengsheng L. Zeng; Grant T. Gullberg (IEEE Trans. Medical Imaging, 1998)

Reconstruction from Slow Rotation Dynamic SPECT Using a Factor Model. - Arkadiusz Sitek; Edward V. R. Di Bella; Grant T. Gullberg (IPMI, 1999)

A Projector/Backprojector with Slice-to-Slice Blurring for Efficient 3D Scatter Modeling. - Gengsheng L. Zeng; Chuanyong Bai; Grant T. Gullberg (IEEE Trans. Medical Imaging, 1999)

Direct Least Squares Estimation of Spatiotemporal Distributions from Dynamic Cone Beam SPECT Projections . - Bryan W. Reutter; Grant T. Gullberg; Ronald H. Huesman (IEEE Trans. Medical Imaging, 2000)

Unmatched projector/backprojector pairs in an iterative reconstruction algorithm. - Gengsheng L. Zeng; Grant T. Gullberg (IEEE Trans. Medical Imaging, 2000)

Cone-beam image reconstruction from equiangular sampling using spherical harmonics. - Katsuyuki Taguchi; Gengsheng Larry Zeng; Grant T. Gullberg (Image Processing, 2001)

Correction for ambiguous solutions in factor analysis using a penalized least squares objective. - Arkadiusz Sitek; Grant T. Gullberg; Ronald H. Huesman (IEEE Trans. Medical Imaging, 2002)

Dynamic SPECT Imaging: Exploring A New Frontier in Medical Imaging. - Grant T. Gullberg (ISBI, 2004)

Edge-preserving smoothing and segmentation of 4D images via transversely isotropic scale-space processing and fingerprint analysis. - Bryan W. Reutter; V. Ralph Algazi; Grant T. Gullberg; Ronald H. Huesman (Image Processing, 2004)

Tomographic reconstruction using an adaptive tetrahedral mesh defined by a point cloud. - Arkadiusz Sitek; Ronald H. Huesman; Grant T. Gullberg (IEEE Trans. Medical Imaging, 2006)

Normal and Pathological NCAT Image and Phantom Data Based on Physiologically Realistic Left Ventricle Finite-Element Models. - Alexander I. Veress; William Paul Segars; Jeffrey A. Weiss; Benjamin M. W. Tsui; Grant T. Gullberg (IEEE Trans. Medical Imaging, 2006)

An Analytical Inversion of the 180degree Exponential Radon Transform with a Numerically Generated Kernel. - Qiu Huang; Gengsheng L. Zeng; Grant T. Gullberg (Int. J. Image Graph., 2007)

Two finite inverse Hilbert transform formulae for region-of-interest tomography. - Gengsheng L. Zeng; Jiangsjemg You; Qiu Huang; Grant T. Gullberg (Int. J. Imaging Syst. Technol., 2007)

Reconstruction From Uniformly Attenuated SPECT Projection Data Using the DBH Method. - Qiu Huang; Jiangsheng You; Gengsheng L. Zeng; Grant T. Gullberg (IEEE Trans. Medical Imaging, 2009)

SinoCor: a clinical tool for sinogram-level patient motion correction in SPECT. - Debasis Mitra 003; Daniel Eiland; Thomas Walsh 003; Rostyslav Boutchko; Grant T. Gullberg; Norberto S. Schechtmann (Image Processing, 2011)

Incorporation of a Left Ventricle Finite Element Model Defining Infarction Into the XCAT Imaging Phantom. - Alexander I. Veress; William Paul Segars; Benjamin M. W. Tsui; Grant T. Gullberg (IEEE Trans. Medical Imaging, 2011)

SinoCor: motion correction in SPECT. - Debasis Mitra 003; Daniel Eiland; Mahmoud Abdallah; Rostyslav Boutchko; Grant T. Gullberg; Norberto S. Schechtmann (Image Processing, 2012)

A Comparison of Hyperelastic Warping of PET Images with Tagged MRI for the Analysis of Cardiac Deformation. - Alexander I. Veress; Gregory Klein; Grant T. Gullberg (Int. J. Biomed. Imaging, 2013)

R-clustering technique for initialization of factor analysis of dynamic PET images. - Debasis Mitra 003; Rostyslav Boutchko; Bo Li; William J. Jagust; Grant T. Gullberg (ISBI, 2015)

Improved factor analysis of dynamic PET images to estimate arterial input function and tissue curves. - Rostyslav Boutchko; Debasis Mitra 003; Hui Pan; William J. Jagust; Grant T. Gullberg (Biomedical Applications in Molecular, Structural, and Functional Imaging, 2015)

Reconstruction of 4-D Dynamic SPECT Images From Inconsistent Projections Using a Spline Initialized FADS Algorithm (SIFADS). - Mahmoud Abdallah; Rostyslav Boutchko; Debasis Mitra 003; Grant T. Gullberg (IEEE Trans. Medical Imaging, 2015)

Joint Correction of Attenuation and Scatter Using Deep Convolutional Neural Networks (DCNN) for Time-of-Flight PET. - Jaewon Yang; Dookun Park; Jae Ho Sohn; Zhen Jane Wang 003; Grant T. Gullberg; Youngho Seo (CoRR, 2018)

Direct image-based attenuation correction using conditional generative adversarial network for SPECT myocardial perfusion imaging. - Mahsa Torkaman; Jaewon Yang; Luyao Shi; Rui Wang; Edward J. Miller; Albert J. Sinusas; Chi Liu 001; Grant T. Gullberg; Youngho Seo (Biomedical Applications in Molecular, Structural, and Functional Imaging, 2021)

Novel Methodology for Measuring Regional Myocardial Efficiency. - Grant T. Gullberg; Uttam M. Shrestha; Alexander I. Veress; William Paul Segars; Jing Liu; Karen Ordovas; Youngho Seo (IEEE Trans. Medical Imaging, 2021)

An Analytical Algorithm for Tensor Tomography From Projections Acquired About Three Axes. - Weijie Tao; Damien Rohmer; Grant T. Gullberg; Youngho Seo; Qiu Huang (IEEE Trans. Medical Imaging, 2022)

A Technique to Quantify Very Low Activities in Regions of Interest With a Collimatorless Detector. - Javier Caravaca; Kondapa Naidu Bobba; Shixian Du; Robin Peter; Grant T. Gullberg; Anil P. Bidkar; Robert R. Flavell; Youngho Seo (IEEE Trans. Medical Imaging, 2024)