Grant Gullberg, PhD | Physics Research Lab

de Souza ACDAH, Harms HJ, Martell L, Bibbo C, Harrington M, Sullivan K, Hainer J, Dorbala S, Blankstein R, Taqueti VR, Foley Kijewski M, Park MA, Meretta A, Breault C, Roth N, Poitrasson-Rivière A, Soman P, Gullberg GT, Di Carli MF

Compton and proximity imaging of 225Ac in vivo with a CZT gamma camera: a proof of principle with simulations.

IEEE transactions on radiation and plasma medical sciences

Caravaca J, Huh Y, Gullberg GT, Seo Y

Data Management and Network Architecture Effect on Performance Variability in Direct Attenuation Correction via Deep Learning for Cardiac SPECT: A Feasibility Study.

IEEE transactions on radiation and plasma medical sciences

Torkaman M, Yang J, Shi L, Wang R, Miller EJ, Sinusas AJ, Liu C, Gullberg GT, Seo Y

X-ray bi-prism interferometry-A design study of proposed novel hardware.

Medical physics

Gullberg GT, Shrestha U, Kim SJW, Seo Y, Fuller M

Tomography of dark-field scatter including single-exposure Moiré fringe analysis with X-ray biprism interferometry-A simulation study.

Medical physics

Tao W, Sung Y, Kim SJW, Huang Q, Gullberg GT, Seo Y, Fuller M

Novel Methodology for Measuring Regional Myocardial Efficiency.

IEEE transactions on medical imaging

Gullberg GT, Shrestha UM, Veress AI, Segars WP, Liu J, Ordovas K, Seo Y

Evaluation of a variable-aperture full-ring SPECT system using large-area pixelated CZT modules: A simulation study for brain SPECT applications.

Medical physics

Huh Y, Yang J, Dim OU, Cui Y, Tao W, Huang Q, Gullberg GT, Seo Y

Direct Attenuation Correction Using Deep Learning for Cardiac SPECT: A Feasibility Study.

Journal of nuclear medicine : official publication, Society of Nuclear Medicine

Yang J, Shi L, Wang R, Miller EJ, Sinusas AJ, Liu C, Gullberg GT, Seo Y

Direct Image-Based Attenuation Correction using Conditional Generative Adversarial Network for SPECT Myocardial Perfusion Imaging.

Proceedings of SPIE--the International Society for Optical Engineering

Torkaman M, Yang J, Shi L, Wang R, Miller EJ, Sinusas AJ, Liu C, Gullberg GT, Seo Y

CT-less Direct Correction of Attenuation and Scatter in the Image Space Using Deep Learning for Whole-Body FDG PET: Potential Benefits and Pitfalls.

Radiology. Artificial intelligence

Yang J, Sohn JH, Behr SC, Gullberg GT, Seo Y

Assessment of late-term progression of cardiac allograft vasculopathy in patients with orthotopic heart transplantation using quantitative cardiac 82Rb PET.

The international journal of cardiovascular imaging

Shrestha UM, Sciammarella M, Pampaloni MH, Botvinick EH, Gullberg GT, DeMarco T, Seo Y

Transmural Remodeling of Cardiac Microstructure in Aged Spontaneously Hypertensive Rats by Diffusion Tensor MRI.

Frontiers in physiology

Giannakidis A, Gullberg GT

Multiresolution spatiotemporal mechanical model of the heart as a prior to constrain the solution for 4D models of the heart.

Proceedings of SPIE--the International Society for Optical Engineering

Gullberg GT, Veress AI, Shrestha UM, Liu J, Ordovas K, Segars WP, Seo Y

Joint correction of attenuation and scatter in image space using deep convolutional neural networks for dedicated brain 18F-FDG PET.

Physics in medicine and biology

Yang J, Park D, Gullberg GT, Seo Y

PET imaging of glucose and fatty acid metabolism for NAFLD patients.

Journal of nuclear cardiology : official publication of the American Society of Nuclear Cardiology

Gullberg GT, Shrestha UM, Seo Y

Tensor Tomography of Dark Field Scatter using X-ray Interferometry with Bi-prisms.

IEEE Nuclear Science Symposium conference record. Nuclear Science Symposium

Gullberg GT, Fuller M, Shrestha U, Seo Y

Comparison of sparse domain approaches for 4D SPECT dynamic image reconstruction.

Medical physics

Mitra D, Abdalah M, Boutchko R, Chang H, Shrestha U, Botvinick E, Seo Y, Gullberg GT

Dynamic cardiac PET imaging: Technological improvements advancing future cardiac health.

Journal of nuclear cardiology : official publication of the American Society of Nuclear Cardiology

Gullberg GT, Shrestha UM, Seo Y

Sparse domain approaches in dynamic SPECT imaging with high-performance computing.

American journal of nuclear medicine and molecular imaging

Pan H, Chang H, Mitra D, Gullberg GT, Seo Y

A combined static-dynamic single-dose imaging protocol to compare quantitative dynamic SPECT with static conventional SPECT.

Journal of nuclear cardiology : official publication of the American Society of Nuclear Cardiology

Sciammarella M, Shrestha UM, Seo Y, Gullberg GT, Botvinick EH

Design of a short nonuniform acquisition protocol for quantitative analysis in dynamic cardiac SPECT imaging - a retrospective 123 I-MIBG animal study.

Medical physics

Zan Y, Long Y, Chen K, Li B, Huang Q, Gullberg GT

Noninvasive PET quantitative myocardial blood flow with regadenoson for assessing cardiac allograft vasculopathy in orthotopic heart transplantation patients.

Journal of nuclear cardiology : official publication of the American Society of Nuclear Cardiology

Pampaloni MH, Shrestha UM, Sciammarella M, Seo Y, Gullberg GT, Botvinick EH

Longitudinal Evaluation of Myocardial Fatty Acid and Glucose Metabolism in Fasted and Nonfasted Spontaneously Hypertensive Rats Using MicroPET/CT.

Molecular imaging

Huber JS, Hernandez AM, Janabi M, O'Neil JP, Brennan KM, Murphy ST, Seo Y, Gullberg GT

Quantitative analysis of hypertrophic myocardium using diffusion tensor magnetic resonance imaging.

Journal of medical imaging (Bellingham, Wash.)

Tran N, Giannakidis A, Gullberg GT, Seo Y

On the averaging of cardiac diffusion tensor MRI data: the effect of distance function selection.

Physics in medicine and biology

Giannakidis A, Melkus G, Yang G, Gullberg GT

Value of Formalin Fixation for the Prolonged Preservation of Rodent Myocardial Microanatomical Organization: Evidence by MR Diffusion Tensor Imaging.

Anatomical record (Hoboken, N.J. : 2007)

Giannakidis A, Gullberg GT, Pennell DJ, Firmin DN

Measurement of absolute myocardial blood flow in humans using dynamic cardiac SPECT and 99mTc-tetrofosmin: Method and validation.

Journal of nuclear cardiology : official publication of the American Society of Nuclear Cardiology

Shrestha U, Sciammarella M, Alhassen F, Yeghiazarians Y, Ellin J, Verdin E, Boyle A, Seo Y, Botvinick EH, Gullberg GT

Image reconstruction in higher dimensions: myocardial perfusion imaging of tracer dynamics with cardiac motion due to deformation and respiration.

Physics in medicine and biology

Shrestha UM, Seo Y, Botvinick EH, Gullberg GT

Clustering-initiated factor analysis application for tissue classification in dynamic brain positron emission tomography.

Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism

Boutchko R, Mitra D, Baker SL, Jagust WJ, Gullberg GT

The direct incorporation of perfusion defect information to define ischemia and infarction in a finite element model of the left ventricle.

Journal of biomechanical engineering

Veress AI, Fung GS, Lee TS, Tsui BM, Kicska GA, Paul Segars W, Gullberg GT

Longitudinal Evaluation of Sympathetic Nervous System and Perfusion in Normal and Spontaneously Hypertensive Rat Hearts with Dynamic Single-Photon Emission Computed Tomography.

Molecular imaging

Zan Y, Boutchko R, Huang Q, Li B, Chen K, Gullberg GT

Handling Big Data in Medical Imaging: Iterative Reconstruction with Large-Scale Automated Parallel Computation.

IEEE Nuclear Science Symposium conference record. Nuclear Science Symposium

Lee JH, Yao Y, Shrestha U, Gullberg GT, Seo Y

Multipinhole collimator with 20 apertures for a brain SPECT application.

Medical physics

Lee TC, Ellin JR, Huang Q, Shrestha U, Gullberg GT, Seo Y

Quantitative Signature of Coronary Steal in a Patient with Occluded Coronary Arteries Supported by Collateral Circulation Using Dynamic SPECT.

IEEE Nuclear Science Symposium conference record. Nuclear Science Symposium

Shrestha U, Botvinick EH, Yeghiazarians Y, Seo Y, Gullberg GT

Reconstruction of 4-D dynamic SPECT images from inconsistent projections using a Spline initialized FADS algorithm (SIFADS).

IEEE transactions on medical imaging

Abdalah M, Boutchko R, Mitra D, Gullberg GT

Improved trabecular bone structure of 20-month-old male spontaneously hypertensive rats.

Calcified tissue international

Lee TC, Burghardt AJ, Yao W, Lane NE, Majumdar S, Gullberg GT, Seo Y

Preclinical and Translational PET/MR Imaging.

Journal of nuclear medicine : official publication, Society of Nuclear Medicine

Wehrl HF, Wiehr S, Divine MR, Gatidis S, Gullberg GT, Maier FC, Rolle AM, Schwenck J, Thaiss WM, Pichler BJ

Myocardial blood flow measurement with a conventional dual-head SPECT/CT with spatiotemporal iterative reconstructions - a clinical feasibility study.

American journal of nuclear medicine and molecular imaging

Alhassen F, Nguyen N, Bains S, Gould RG, Seo Y, Bacharach SL, Song X, Shao L, Gullberg GT, Aparici CM

Longitudinal evaluation of left ventricular substrate metabolism, perfusion, and dysfunction in the spontaneously hypertensive rat model of hypertrophy using small-animal PET/CT imaging.

Journal of nuclear medicine : official publication, Society of Nuclear Medicine

Hernandez AM, Huber JS, Murphy ST, Janabi M, Zeng GL, Brennan KM, O'Neil JP, Seo Y, Gullberg GT

Design and performance evaluation of a 20-aperture multipinhole collimator for myocardial perfusion imaging applications.

Physics in medicine and biology

Bowen JD, Huang Q, Ellin JR, Lee TC, Shrestha U, Gullberg GT, Seo Y

Fast direct estimation of the blood input function and myocardial time activity curve from dynamic SPECT projections via reduction in spatial and temporal dimensions.

Medical physics

Zan Y, Boutchko R, Huang Q, Li B, Chen K, Gullberg GT

Imaging and modeling of flow in porous media using clinical nuclear emission tomography systems and computational fluid dynamics.

Journal of applied geophysics

Boutchko R, Rayz VL, Vandehey NT, O'Neil JP, Budinger TF, Nico PS, Druhan JL, Saloner DA, Gullberg GT, Moses WW

Investigation of dynamic SPECT measurements of the arterial input function in human subjects using simulation, phantom and human studies.

Physics in medicine and biology

Winant CD, Aparici CM, Zelnik YR, Reutter BW, Sitek A, Bacharach SL, Gullberg GT

Development of a model of the coronary arterial tree for the 4D XCAT phantom.

Physics in medicine and biology

Fung GS, Segars WP, Gullberg GT, Tsui BM

MR-based keyhole SPECT for small animal imaging.

Physics in medicine and biology

Lee KS, Roeck WW, Gullberg GT, Nalcioglu O

Longitudinal Evaluation of Fatty Acid Metabolism in Normal and Spontaneously Hypertensive Rat Hearts with Dynamic MicroSPECT Imaging.

International journal of molecular imaging

Reutter BW, Huesman RH, Brennan KM, Boutchko R, Hanrahan SM, Gullberg GT

Measuring regional changes in the diastolic deformation of the left ventricle of SHR rats using microPET technology and hyperelastic warping.

Annals of biomedical engineering

Veress AI, Weiss JA, Huesman RH, Reutter BW, Taylor SE, Sitek A, Feng B, Yang Y, Gullberg GT

Assessment of the sources of error affecting the quantitative accuracy of SPECT imaging in small animals.

Physics in medicine and biology

Hwang AB, Franc BL, Gullberg GT, Hasegawa BH

Reconstruction and visualization of fiber and laminar structure in the normal human heart from ex vivo diffusion tensor magnetic resonance imaging (DTMRI) data.

Investigative radiology

Rohmer D, Sitek A, Gullberg GT

A Fourier reconstruction algorithm with constant attenuation compensation using 180 degrees acquisition data for SPECT.

Physics in medicine and biology

Tang Q, Zeng GL, Gullberg GT

Normal and pathological NCAT image and phantom data based on physiologically realistic left ventricle finite-element models.

IEEE transactions on medical imaging

Veress AI, Segars WP, Weiss JA, Tsui BM, Gullberg GT

An FDK-like cone-beam SPECT reconstruction algorithm for non-uniform attenuated projections acquired using a circular trajectory.

Physics in medicine and biology

Huang Q, Zeng GL, You J, Gullberg GT

Effects of temporal modelling on the statistical uncertainty of spatiotemporal distributions estimated directly from dynamic SPECT projections.

Physics in medicine and biology

Reutter BW, Gullberg GT, Huesman RH

A three-dimensional ray-driven attenuation, scatter and geometric response correction technique for SPECT in inhomogeneous media.

Physics in medicine and biology

Laurette I, Zeng GL, Welch A, Christian PE, Gullberg GT

A slice-by-slice blurring model and kernel evaluation using the Klein-Nishina formula for 3D scatter compensation in parallel and converging beam SPECT.

Physics in medicine and biology

Bai C, Zeng GL, Gullberg GT

Direct least-squares estimation of spatiotemporal distributions from dynamic SPECT projections using a spatial segmentation and temporal B-splines.

IEEE transactions on medical imaging

Reutter BW, Gullberg GT, Huesman RH

Projection space image reconstruction using strip functions to calculate pixels more "natural" for modeling the geometric response of the SPECT collimator.

IEEE transactions on medical imaging

Hsieh YL, Zeng GL, Gullberg GT

An investigation into the effect of input function shape and image acquisition interval on estimates of washin for dynamic cardiac SPECT.

Physics in medicine and biology

Ross SG, Welch A, Gullberg GT, Huesman RH

Toward accurate attenuation correction in SPECT without transmission measurements.

IEEE transactions on medical imaging

Welch A, Clack R, Natterer F, Gullberg GT

Reduction of geometric and intensity distortions in echo-planar imaging using a multireference scan.

Magnetic resonance in medicine

Wan X, Gullberg GT, Parker DL, Zeng GL

Experimental verification of technetium 99m-labeled teboroxime kinetic parameters in the myocardium with dynamic single-photon emission computed tomography: reproducibility, correlation to flow, and susceptibility to extravascular contamination.

Journal of nuclear cardiology : official publication of the American Society of Nuclear Cardiology

Smith AM, Gullberg GT, Christian PE

An investigation of the effect of finite system resolution and photon noise on the bias and precision of dynamic cardiac SPECT parameters.

Medical physics

Welch A, Smith AM, Gullberg GT

A simulation of emission and transmission noise propagation in cardiac SPECT imaging with nonuniform attenuation correction.

Medical physics

Tung CH, Gullberg GT

Application of convergent-beam collimation and simultaneous transmission emission tomography to cardiac single-photon emission computed tomography.

Seminars in nuclear medicine

Datz FL, Gullberg GT, Zeng GL, Tung CH, Christian PE, Welch A, Clack R

Evaluation of cardiac cone-beam single photon emission computed tomography using observer performance experiments and receiver operating characteristic analysis.

Investigative radiology

Tsui BM, Terry JA, Gullberg GT

An analytical approach to quantify uniformity artifacts for circular and noncircular detector motion in single photon emission computed tomography imaging.

Medical physics

Gullberg GT

Regional distribution of myocardial blood flow measured by single-photon emission tomography: comparison with in vitro counting.

Journal of nuclear medicine : official publication, Society of Nuclear Medicine

Caldwell JH, Williams DL, Hamilton GW, Ritchie JL, Harp GD, Eisner RL, Gullberg GT, Nowak DJ

Publications