Pooyan Sahbaee

Works (7)

Updated: July 5th, 2023 15:42

2016 article

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

MEDICAL IMAGING 2016: PHYSICS OF MEDICAL IMAGING, Vol. 9783.

By: P. Sahbaee n, E. Abadi *, J. Sanders *, M. Becchetti*, Y. Zhang *, G. Agasthya *, P. Segars*, E. Samei *

author keywords: Computed Tomography; Contrast Material; Compartmental Model; Contrast Enhanced; Patient Specific; Iodine; Radiation dose; CTDI; Image Quality
TL;DR: The purpose of this study was to substantiate the interdependency of image quality, radiation dose, and contrast material dose in CT towards the patient-specific optimization of the imaging protocols and showed that the presence of contrast material could have a profound impact on optimization results. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Source: Web Of Science
Added: August 6, 2018

2016 article

Development and Comparison of Projection and Image Space 3D Nodule Insertion Techniques

MEDICAL IMAGING 2016: PHYSICS OF MEDICAL IMAGING, Vol. 9783.

By: M. Robins*, J. Solomon*, P. Sahbaee n & E. Samei *

author keywords: Computed Tomography; Lesion; 3D Quantification; Volume; Accuracy
TL;DR: Data imply that these techniques can confidently be used as a means of inserting virtual nodules in CT datasets and can be instrumental in building hybrid CT datasets composed of patient images with virtually inserted nodules. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Source: Web Of Science
Added: August 6, 2018

2016 article

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

MEDICAL IMAGING 2016: PHYSICS OF MEDICAL IMAGING, Vol. 9783.

By: P. Sahbaee n, M. Robins*, J. Solomon* & E. Samei *

author keywords: Computed Tomography; Lesion; 3D Quantification; Hausdorff Distance; Morphology
TL;DR: A 3D quantification technique to assess the impact of imaging system on depiction of lesion morphology was developed and the Hausdorff Distance was calculated from each pair of “virtual” and “physical” nodules. (via Semantic Scholar)
Source: Web Of Science
Added: August 6, 2018

2016 article

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

MEDICAL IMAGING 2016: PHYSICS OF MEDICAL IMAGING, Vol. 9783.

By: W. Fu *, X. Tian *, P. Sahbaee n, Y. Zhang *, W. Segars * & E. Samei *

author keywords: computed tomography; Monte Carlo; tube current modulation; organ dose; effective dose; iOS app
TL;DR: A population-based mathematical model can provide a comprehensive organ dose estimation given body size and CTDIvol, and is integrated into an iPhone app XCATdose version 2, enhancing the 1st version based upon fixed tube current modulation. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Source: Web Of Science
Added: August 6, 2018

2015 article

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

MEDICAL IMAGING 2015: PHYSICS OF MEDICAL IMAGING, Vol. 9412.

By: P. Sahbaee n, Y. Li *, P. Segars*, D. Marin*, R. Nelson* & E. Samei *

author keywords: CT; Computed Tomography; Contrast Material; Compartmental Model; Contrast Enhanced; Patient Specific
TL;DR: This work is one of the first attempts to predict the contrast material injection function for a desired organ enhancement curve and can be useful in optimizing contrast medium injection function as well as the scan timing to provide more consistency in the way that the contrast enhanced CT examinations are performed. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Source: Web Of Science
Added: August 6, 2018

2014 journal article

An X-ray scatter system for material identification in cluttered objects: A Monte Carlo simulation study

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, 335, 31–38.

By: M. Lakshmanan*, A. Kapadia *, P. Sahbaee n, S. Wolter*, B. Harrawood*, D. Brady *, E. Samei *

author keywords: Coherent scatter; X-ray imaging; Suitcase clutter; Material identification
UN Sustainable Development Goal Categories
Source: Web Of Science
Added: August 6, 2018

2014 journal article

Patient-based estimation of organ dose for a population of 58 adult patients across 13 protocol categories

MEDICAL PHYSICS, 41(7).

By: P. Sahbaee n, W. Segars * & E. Samei *

author keywords: CT; computed tomography; Monte Carlo; radiation; dose; patient-specific; dose calculator; iOS app
MeSH headings : Adolescent; Adult; Aged; Algorithms; Body Size / radiation effects; Computer Simulation; Female; Humans; Male; Middle Aged; Models, Theoretical; Monte Carlo Method; Phantoms, Imaging; Radiation Dosage; Tomography, X-Ray Computed / instrumentation; Tomography, X-Ray Computed / methods; Young Adult
TL;DR: While the most accurate estimation of a patient dose requires specific modeling of the patient anatomy, a first order approximation of organ and effective doses from routine CT scan protocols can be reasonably estimated using size specific factors. (via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being (Web of Science; OpenAlex)
Source: Web Of Science
Added: August 6, 2018

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