Zobrazeno 1 - 10
of 68
pro vyhledávání: '"Ahmed F, Halaweish"'
Autor:
Roy P. Marcus, Jonathan M. Morris, Jane M. Matsumoto, Amy E. Alexander, Ahmed F. Halaweish, James A Kelly, Joel G. Fletcher, Cynthia H. McCollough, Shuai Leng
Publikováno v:
3D Printing in Medicine, Vol 3, Iss 1, Pp 1-8 (2017)
Abstract Background To assess the impact of metal artifact reduction techniques in 3D printing by evaluating image quality and segmentation time in both phantom and patient studies with dental restorations and/or other metal implants. An acrylic dent
Externí odkaz:
https://doaj.org/article/3251f5302eac4830b95500e22f824816
Autor:
Yong S Lee, Irene Duba, Akitoshi Inoue, Shuai Leng, Ahmed F. Halaweish, Nikkole M. Weber, Cynthia H. McCollough, Terri J. Vrtiska, Eric E. Williamson, Joel G. Fletcher, Rogerio N. Vasconcelos
Publikováno v:
Vascular. 29:927-937
Objective This study aims to determine if low iodine dynamic computed tomography angiography performed after a fixed delay or test bolus acquisition demonstrates high concordance with clinical computed tomography angiography (using a routine amount o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f65a9b198791924c366de7f7930cfc83
https://doi.org/10.1177/1708538120986304
https://doi.org/10.1177/1708538120986304
Autor:
Joseph Mammarappallil, MD, PhD, Richard E. Moon MD, Neil R. MacIntyre MD, W. Michael Foster PhD, Samantha J. Womack MS, Maureen D. Ainslie MS RT(R)MR, H. Page McAdams, MD, Ahmed F. Halaweish PhD, Kingshuk Choudury PhD, H. Cecil Charles PhD
Publikováno v:
Journal of Lung, Pulmonary & Respiratory Research. 7:107-115
Rationale: Recent advances in perfluoropropane magnetic resonance imaging of the lung have provided the means to assess pulmonary ventilation and gas distribution throughout the pulmonary airways and acini in a non-invasive manner. Objectives: The in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1839dd5d3c066968731406ab0bdf18bc
https://doi.org/10.15406/jlprr.2020.07.00239
https://doi.org/10.15406/jlprr.2020.07.00239
Autor:
Mark C. Adkins, Joel G. Fletcher, Ahmed F. Halaweish, Katrina N. Glazebrook, Christin A. Tiegs-Heiden, Zaiyang Long, Julian Hagen, Tara L. Anderson, Cynthia H. McCollough
Publikováno v:
Skeletal Radiology. 50:149-157
To evaluate a new adaptive iterative metal artifact reduction algorithm (AiMAR) in whole-body low-dose CT (WBLDCT) skeletal survey examinations. Projection data were retrospectively obtained from 25 clinical WBLDCT skeletal survey patients, each with
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::97cec2ad3253011d9390fc77d6e74f27
https://doi.org/10.1007/s00256-020-03547-0
https://doi.org/10.1007/s00256-020-03547-0
Autor:
Payam Mohammadinejad, Ashish Khandelwal, Akitoshi Inoue, Hiroaki Takahashi, Mariana Yalon, Zaiyang Long, Ahmed F. Halaweish, Shuai Leng, Lifeng Yu, Yong S. Lee, Cynthia H. McCollough, Joel G. Fletcher
Publikováno v:
Abdominal radiology (New York). 47(6)
To compare the utility of a novel metal artifact reduction algorithm to standard imaging in improving visualization of key structures, diagnostic confidence, and patient-level confidence in malignancy in patients with suspected bladder cancer.Patient
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::53a1626f9b394b98f29236c44be88d4f
https://pubmed.ncbi.nlm.nih.gov/35320381
https://pubmed.ncbi.nlm.nih.gov/35320381
Autor:
Ahmed F. Halaweish, David J. Bartlett, Cynthia H. McCollough, Brian J. Bartholmai, Joel G. Fletcher, Chi Wan Koo, Kishore Rajendran, Shuai Leng, Jayse M. Weaver
Publikováno v:
Investigative Radiology. 54:129-137
OBJECTIVES The aim of this study was to evaluate if a high-resolution photon-counting detector computed tomography (PCD-CT) system with a 1024×1024 matrix reconstruction can improve the visualization of fine structures in the lungs compared with con
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3ffc4edf147f088b63279bb088a3fefc
https://doi.org/10.1097/rli.0000000000000524
https://doi.org/10.1097/rli.0000000000000524
Autor:
Ahmed F. Halaweish, Chi Wan Koo, Joel G. Fletcher, Nikkole M. Weber, Brian J. Bartholmai, Lifeng Yu, Cynthia H. McCollough
Publikováno v:
Current Problems in Diagnostic Radiology. 48:152-160
Objective Chest computed tomography (CT) imaging enables detailed visualization of the pulmonary structures and diseases. This article reviews how continued innovation and improvements in modern CT system hardware and software now facilitate a wider
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2684bc4f03104c31cc491d0500b71d5e
https://doi.org/10.1067/j.cpradiol.2018.10.003
https://doi.org/10.1067/j.cpradiol.2018.10.003
Autor:
Ahmed F. Halaweish, Lifeng Yu, Bernhard Schmidt, Thomas Flohr, Liqiang Ren, Cynthia H. McCollough, Thomas Allmendinger
Publikováno v:
Med Phys
PURPOSE Multi-energy computed tomography (MECT) has a great potential to enable many novel clinical applications such as simultaneous multi-contrast imaging. The purpose of this study was to implement triple-beam MECT on a traditional energy-integrat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5e04b6d76115473f77d2dd9027ba5e34
https://pubmed.ncbi.nlm.nih.gov/33988849
https://pubmed.ncbi.nlm.nih.gov/33988849
Autor:
Jay P Heiken, Joel G. Fletcher, Akitoshi Inoue, David H. Bruining, Yong S Lee, Adam T. Froemming, Stephanie L. Hansel, Jeff L. Fidler, Ahmed F. Halaweish, Payam Mohammadinejad, Michael L. Wells, Ashish Khandelwal, Cynthia H. McCollough, Lukasz Kwapisz, Shannon P. Sheedy
Publikováno v:
Acta Radiologica Open
Background Due to their easy accessibility, CT scans have been increasingly used for investigation of gastrointestinal (GI) bleeding. Purpose To estimate the performance of a dual-phase, dual-energy (DE) GI bleed CT protocol in patients with overt GI
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::16e3643f2614714c5fa34495bcfb48d6
https://pubmed.ncbi.nlm.nih.gov/34377539
https://pubmed.ncbi.nlm.nih.gov/34377539
Autor:
Shuai Leng, Eric E. Williamson, Ahmed F. Halaweish, Cynthia H. McCollough, Emily N. Sheedy, Kyle Williams, Bernhard Schmidt, Nikkole M. Weber, Michael R. Bruesewitz, Shengzhen Tao
Publikováno v:
Med Phys
PURPOSE: To determine the accuracy of CT number and calcium score of a kV-independent technique based on an artificial 120 kV reconstruction, and its potential to reduce radiation dose. METHODS: Anthropomorphic chest phantoms were scanned on a third-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::af2f783714b7006d19b5a765cbdb2bd8
https://europepmc.org/articles/PMC8042601/
https://europepmc.org/articles/PMC8042601/
