Dr. Pooyan Sahbaee Profile

Dr. Pooyan Sahbaee

Research Scientist at Siemens Healthineers

SPIE Involvement:

Author

Publications (12)

Proceedings Article | 1 April 2024 Poster + Paper

Dual-source photon-counting CT: impact of residual cross-scatter on quantitative spectral results

Leening Liu, Edgar Salazar, Pooyan Sahbaee, Harold Litt, Peter Noël

Proceedings Volume 12925, 129252N (2024) https://doi.org/10.1117/12.3006109

KEYWORDS: Collimation, Iodine, Photon counting, Computed tomography, Image quality

Read Abstract +

Proceedings Article | 18 October 2022 Open Access

Dual-source photon-counting CT: consistency in spectral results at different acquisition modes and heart rates

Leening Liu, Nadav Shapira, Pooyan Sahbaee, Harold Litt, Marcus Chen, Peter Noël

Proceedings Volume 12304, 123040I (2022) https://doi.org/10.1117/12.2646718

KEYWORDS: Spectral computed tomography, Photon counting, Heart, Iodine, X-ray computed tomography, Computed tomography, Radiology

Read Abstract +

DOWNLOAD PAPER

Proceedings Article | 15 February 2021 Poster + Presentation + Paper

An experimental evaluation of material separability in photon-counting CT

Jayasai Rajagopal, Faraz Farhadi, Ayele Negussie, Ehsan Abadi, Pooyan Sahbaee, Babak Saboury, Ashkan Malayeri, William Pritchard, Elizabeth Jones, Ehsan Samei

Proceedings Volume 11595, 115954K (2021) https://doi.org/10.1117/12.2581081

KEYWORDS: Scanners, Mahalanobis distance, Iodine, Gadolinium, Receivers, Photon counting, Computed tomography

Read Abstract +

Proceedings Article | 15 February 2021 Poster + Presentation + Paper

Multivariate SNR in spectral computed tomography

Jayasai Rajagopal, Faraz Farhadi, Ayele Negussie, Ehsan Abadi, Pooyan Sahbaee, Babak Saboury, Ashkan Malayeri, William Pritchard, Elizabeth Jones, Ehsan Samei

Proceedings Volume 11595, 115954I (2021) https://doi.org/10.1117/12.2581079

KEYWORDS: Signal to noise ratio, Spectral computed tomography, CT reconstruction, Iodine, Scanners, Photons, Matrices, Computing systems, Computed tomography

Read Abstract +

Proceedings Article | 1 March 2019 Paper

Impact of energy threshold on material quantification of contrast agents in photon-counting CT

Jayasai Rajagopal, Pooyan Sahbaee, Ehsan Abadi, Ayele Negussie, William Pritchard, Brad Wood, Elizabeth Jones, Ehsan Samei

Proceedings Volume 10948, 109484N (2019) https://doi.org/10.1117/12.2512944

KEYWORDS: Photon counting, Iodine, Gadolinium, Bismuth, X-ray computed tomography, Computed tomography, Radiology

Read Abstract +

Proceedings Article | 4 April 2016 Paper

Development and comparison of projection and image space 3D nodule insertion techniques

Marthony Robins, Justin Solomon, Pooyan Sahbaee, Ehsan Samei

Proceedings Volume 9783, 97835X (2016) https://doi.org/10.1117/12.2216930

KEYWORDS: Modulation transfer functions, Computed tomography, 3D image processing, 3D modeling, Data modeling, Reconstruction algorithms, Imaging systems, Solid modeling, Image segmentation, Infrared imaging

Read Abstract +

Proceedings Article | 4 April 2016 Paper

Development of a Hausdorff distance based 3D quantification technique to evaluate the CT imaging system impact on depiction of lesion morphology

Pooyan Sahbaee, Marthony Robins, Justin Solomon, Ehsan Samei

Proceedings Volume 9783, 97835V (2016) https://doi.org/10.1117/12.2216503

KEYWORDS: 3D modeling, 3D image processing, Computed tomography, Imaging systems, Image segmentation, Spherical lenses, Scanners, Shape analysis, Cones, Distance measurement, Physics

Read Abstract +

Proceedings Article | 31 March 2016 Paper

A technique for multi-dimensional optimization of radiation dose, contrast dose, and image quality in CT imaging

Pooyan Sahbaee, Ehsan Abadi, Jeremiah Sanders, Marc Becchetti, Yakun Zhang, Greeshma Agasthya, Paul Segars, Ehsan Samei

Proceedings Volume 9783, 97833F (2016) https://doi.org/10.1117/12.2216516

KEYWORDS: Image quality, Computed tomography, Optimization (mathematics), CT reconstruction, Scanners, 3D modeling, 3D acquisition, Iodine, Physics, Nanoparticles, Mercury, Monte Carlo methods, X-ray computed tomography

Read Abstract +

Proceedings Article | 31 March 2016 Paper

Organ dose conversion coefficients for tube current modulated CT protocols for an adult population

Wanyi Fu, Xiaoyu Tian, Pooyan Sahbaee, Yakun Zhang, William Paul Segars, Ehsan Samei

Proceedings Volume 9783, 97833E (2016) https://doi.org/10.1117/12.2217271

KEYWORDS: Modulation, Monte Carlo methods, Computed tomography, Liver, Kidney, Bladder, Skin, Neuroimaging, Brain, Esophagus

Read Abstract +

SPIE Journal Paper | 20 January 2016

Determination of contrast media administration to achieve a targeted contrast enhancement in computed tomography

Pooyan Sahbaee, Paul Segars, Daniele Marin, Rendon Nelson, Ehsan Samei

JMI, Vol. 3, Issue 01, 013501, (January 2016) https://doi.org/10.1117/12.10.1117/1.JMI.3.1.013501

KEYWORDS: Computed tomography, Kidney, Liver, Data modeling, Stomach, Intestine, Heart, Arteries, Blood, Veins

Read Abstract +

Proceedings Article | 18 March 2015 Paper

Determination of contrast media administration to achieve a targeted contrast enhancement in CT

Pooyan Sahbaee, Yuan Li, Paul Segars, Daniele Marin, Rendon Nelson, Ehsan Samei

Proceedings Volume 9412, 941205 (2015) https://doi.org/10.1117/12.2082261

KEYWORDS: Iodine, Kidney, Liver, Computed tomography, Intestine, Stomach, Blood, Error analysis, Heart, Data modeling

Read Abstract +

Proceedings Article | 6 March 2013 Paper

Monte-Carlo simulations of a coded-aperture x-ray scatter imaging system for molecular imaging

Anuj Kapadia, Manu Lakshmanan, Kalyani Krishnamurthy, Pooyan Sahbaee, Amarpreet Chawla, Scott Wolter, Ken Maccabe, David Brady, Ehsan Samei

Proceedings Volume 8668, 86680B (2013) https://doi.org/10.1117/12.2008484

KEYWORDS: Diffraction, X-rays, Monte Carlo methods, X-ray imaging, Coded apertures, Imaging systems, Sensors, X-ray diffraction, Aluminum, Scattering

Read Abstract +

Showing 5 of 12 publications

View contact details

UPDATE YOUR PROFILE

Is this your profile? Update it now.

Sign into your SPIE.org account

Don’t have a profile and want one?

Create an account on SPIE.org

Keywords/Phrases

Search In:

Publication Years