Works by Samei, Ehsan

Results: 201

Recurrent medical imaging exposures for the care of patients: one way forward.

Published in:

European Radiology, 2024, v. 34, n. 10, p. 6475, doi. 10.1007/s00330-024-10659-x

By:

Frush, Donald Paul;
Vassileva, Jenia;
Brambilla, Marco;
Mahesh, Mahadevappa;
Rehani, Madan;
Samei, Ehsan;
Applegate, Kimberly;
Bourland, John;
Ciraj-Bjenlac, Olivera;
Dahlstrom, Danielle;
Gershan, Vesna;
Gilligan, Paddy;
Godthelp, Barbara;
Hjemly, Hakon;
Kainberger, Franz;
Mikhail-Lette, Miriam;
Holmberg, Ola;
Paez, Diana;
Schrandt, Suz;
Valentin, Andreas

Publication type:

Article

Influence of CT dose reduction on AI-driven malignancy estimation of incidental pulmonary nodules.

Published in:

European Radiology, 2024, v. 34, n. 5, p. 3444, doi. 10.1007/s00330-023-10348-1

By:

Peters, Alan A.;
Solomon, Justin B.;
von Stackelberg, Oyunbileg;
Samei, Ehsan;
Alsaihati, Njood;
Valenzuela, Waldo;
Debic, Manuel;
Heidt, Christian;
Huber, Adrian T.;
Christe, Andreas;
Heverhagen, Johannes T.;
Kauczor, Hans-Ulrich;
Heussel, Claus P.;
Ebner, Lukas;
Wielpütz, Mark O.

Publication type:

Article

Exploratory analysis of mesenteric-portal axis CT radiomic features for survival prediction of patients with pancreatic ductal adenocarcinoma.

Published in:

European Radiology, 2023, v. 33, n. 8, p. 5779, doi. 10.1007/s00330-023-09532-0

By:

Rigiroli, Francesca;
Hoye, Jocelyn;
Lerebours, Reginald;
Lyu, Peijie;
Lafata, Kyle J.;
Zhang, Anru R.;
Erkanli, Alaattin;
Mettu, Niharika B.;
Morgan, Desiree E.;
Samei, Ehsan;
Marin, Daniele

Publication type:

Article

Is it possible to use low-dose deep learning reconstruction for the detection of liver metastases on CT routinely?

Published in:

European Radiology, 2023, v. 33, n. 3, p. 1629, doi. 10.1007/s00330-022-09206-3

By:

Lyu, Peijie;
Liu, Nana;
Harrawood, Brian;
Solomon, Justin;
Wang, Huixia;
Chen, Yan;
Rigiroli, Francesca;
Ding, Yuqin;
Schwartz, Fides Regina;
Jiang, Hanyu;
Lowry, Carolyn;
Wang, Luotong;
Samei, Ehsan;
Gao, Jianbo;
Marin, Daniele

Publication type:

Article

Correction to: Comparison of 12 surrogates to characterize CT radiation risk across a clinical population.

Published in:

2021

By:

Ria, Francesco;
Fu, Wanyi;
Hoye, Jocelyn;
Segars, W. Paul;
Kapadia, Anuj J.;
Samei, Ehsan

Publication type:

Correction Notice

Comparison of 12 surrogates to characterize CT radiation risk across a clinical population.

Published in:

European Radiology, 2021, v. 31, n. 9, p. 7022, doi. 10.1007/s00330-021-07753-9

By:

Ria, Francesco;
Fu, Wanyi;
Hoye, Jocelyn;
Segars, W. Paul;
Kapadia, Anuj J.;
Samei, Ehsan

Publication type:

Article

Minimum perceivable size difference: how well can radiologists visually detect a change in lung nodule size from CT images?

Published in:

European Radiology, 2021, v. 31, n. 4, p. 1947, doi. 10.1007/s00330-020-07326-2

By:

Solomon, Justin;
Ebner, Lukas;
Christe, Andreas;
Peters, Alan;
Munz, Jaro;
Löbelenz, Laura;
Klaus, Jeremias;
Richards, Taylor;
Samei, Ehsan;
Roos, Justus E.

Publication type:

Article

How accurate and precise are CT based measurements of iodine concentration? A comparison of the minimum detectable concentration difference among single source and dual source dual energy CT in a phantom study.

Published in:

European Radiology, 2019, v. 29, n. 4, p. 2069, doi. 10.1007/s00330-018-5736-0

By:

Euler, André;
Solomon, Justin;
Mazurowski, Maciej A.;
Samei, Ehsan;
Nelson, Rendon C.

Publication type:

Article

How accurate and precise are CT based measurements of iodine concentration? A comparison of the minimum detectable concentration difference among single source and dual source dual energy CT in a phantom study.

Published in:

2018

By:

Euler, André;
Solomon, Justin;
Mazurowski, Maciej A;
Samei, Ehsan;
Nelson, Rendon C

Publication type:

journal article

Effects of automatic tube potential selection on radiation dose index, image quality, and lesion detectability in pediatric abdominopelvic CT and CTA: a phantom study.

Published in:

2016

By:

Brinkley, Michael;
Ramirez-Giraldo, Juan;
Samei, Ehsan;
Frush, Daniel;
Choudhury, Kingshuk;
Wilson, Joshua;
Christianson, Olav;
Frush, Donald;
Brinkley, Michael F;
Ramirez-Giraldo, Juan C;
Frush, Daniel J;
Choudhury, Kingshuk Roy;
Wilson, Joshua M;
Christianson, Olav I;
Frush, Donald P

Publication type:

journal article

Clinical impact of an adaptive statistical iterative reconstruction algorithm for detection of hypervascular liver tumours using a low tube voltage, high tube current MDCT technique.

Published in:

2013

By:

Marin, Daniele;
Choudhury, Kingshuk Roy;
Gupta, Rajan T;
Ho, Lisa M;
Allen, Brian C;
Schindera, Sebastian T;
Colsher, James G;
Samei, Ehsan;
Nelson, Rendon C

Publication type:

journal article

Unsupervised synthesis of realistic coronary artery X-ray angiogram.

Published in:

International Journal of Computer Assisted Radiology & Surgery, 2023, v. 18, n. 12, p. 2329, doi. 10.1007/s11548-023-02982-3

By:

Martin, Rémi;
Segars, Paul;
Samei, Ehsan;
Miró, Joaquim;
Duong, Luc

Publication type:

Article

Improved Nuclear Medicine Uniformity Assessment with Noise Texture Analysis.

Published in:

Journal of Nuclear Medicine, 2014, v. 55, n. 1, p. 169, doi. 10.2967/jnumed.113.125450

By:

Nelson, Jeffrey S.;
Christianson, Olav I.;
Harkness, Beth A.;
Madsen, Mark T.;
Mah, Eugene;
Thomas, Stephen R.;
Zaidi, Habib;
Samei, Ehsan

Publication type:

Article

EVALUATION OF TWO OBJECTIVE METHODS TO OPTIMIZE KVP AND PERSONNEL EXPOSURE USING A DIGITAL INDIRECT FLAT PANEL DETECTOR AND SIMULATED VETERINARY PATIENTS.

Published in:

Veterinary Radiology & Ultrasound, 2013, v. 54, n. 1, p. 9, doi. 10.1111/j.1740-8261.2012.01989.x

By:

Copple, Christina;
Robertson, Ian D.;
Thrall, Donald E.;
Samei, Ehsan

Publication type:

Article

Making CT Dose Monitoring Meaningful: Augmenting Dose with Imaging Quality.

Published in:

Tomography: A Journal for Imaging Research, 2023, v. 9, n. 2, p. 798, doi. 10.3390/tomography9020065

By:

Alsaihati, Njood;
Ria, Francesco;
Solomon, Justin;
Ding, Aiping;
Frush, Donald;
Samei, Ehsan

Publication type:

Article

Variability of quantitative measurements of metastatic liver lesions: a multi-radiation-dose-level and multi-reader comparison.

Published in:

Abdominal Radiology, 2021, v. 46, n. 1, p. 226, doi. 10.1007/s00261-020-02601-8

By:

Ding, Yuqin;
Marin, Daniele;
Vernuccio, Federica;
Gonzalez, Fernando;
Williamson, Hannah V.;
Becker, Hans-Christoph;
Patel, Bhavik N.;
Solomon, Justin;
Ramirez-Giraldo, Juan Carlos;
Samei, Ehsan;
Nelson, Rendon C.;
Meyer, Mathias

Publication type:

Article

Toward Clinically Relevant Standardization of Image Quality.

Published in:

Journal of Digital Imaging, 2004, v. 17, n. 4, p. 271, doi. 10.1007/s10278-004-1031-5

By:

Samei, Ehsan;
Rowberg, Alan;
Avraham, Ellie;
Cornelius, Craig

Publication type:

Article

A FRAMEWORK FOR OPTIMISING THE RADIOGRAPHIC TECHNIQUE IN DIGITAL X-RAY IMAGING.

Published in:

Radiation Protection Dosimetry, 2005, v. 114, n. 1-3, p. 220, doi. 10.1093/rpd/nch562

By:

Samei, Ehsan;
Dobbins, III, James T.;
Lo, Joseph Y.;
Tornai, Martin P.

Publication type:

Article

A methodology for incorporating a photon‐counting CT system into routine clinical use.

Published in:

Journal of Applied Clinical Medical Physics, 2023, v. 24, n. 8, p. 1, doi. 10.1002/acm2.14069

By:

Bache, Steven T.;
Samei, Ehsan

Publication type:

Article

Academic program recommendations for graduate degrees in medical physics: AAPM Report No. 365 (Revision of Report No. 197).

Published in:

Journal of Applied Clinical Medical Physics, 2022, v. 23, n. 10, p. 1, doi. 10.1002/acm2.13792

By:

Burmeister, Jay W.;
Busse, Nathan C.;
Cetnar, Ashley J.;
Howell, Rebecca R.;
Jeraj, Robert;
Jones, A. Kyle;
King, Steven H.;
Matthews, Kenneth L.;
Montemayor, Victor J.;
Newhauser, Wayne;
Rodrigues, Anna E.;
Samei, Ehsan;
Turkington, Timothy V.;
Gronberg, Mary P.;
Loughery, Brian;
Roth, Alison R.;
Joiner, Michael C.;
Jackson, Edward F.;
Naine, Paul A.;
Kim, Leonard H.

Publication type:

Article

Design and implementation of a practical quality control program for dual‐energy CT.

Published in:

Journal of Applied Clinical Medical Physics, 2021, v. 22, n. 10, p. 249, doi. 10.1002/acm2.13396

By:

Green, Crystal A.;
Solomon, Justin B.;
Ruchala, Kenneth J.;
Samei, Ehsan

Publication type:

Article

Structured mentorship program for the ABR international medical graduates alternate pathway for medical physicists in diagnostic imaging.

Published in:

Journal of Applied Clinical Medical Physics, 2021, v. 22, n. 1, p. 351, doi. 10.1002/acm2.13166

By:

Ria, Francesco;
Wilson, Joshua M.;
Nelson, Jeffrey;
Samei, Ehsan

Publication type:

Article

Automated quality control in nuclear medicine using the structured noise index.

Published in:

Journal of Applied Clinical Medical Physics, 2020, v. 21, n. 4, p. 80, doi. 10.1002/acm2.12850

By:

Nelson, Jeffrey S.;
Samei, Ehsan

Publication type:

Article

Photon-counting CT yields superior abdominopelvic image quality at lower radiation and iodinated contrast doses.

Published in:

Pediatric Radiology, 2025, v. 55, n. 6, p. 1202, doi. 10.1007/s00247-025-06209-2

By:

Schwartz, Fides Regina;
Bache, Steve;
Lee, Rachel;
Maxfield, Charles M.;
Fadell II, Michael F.;
Gaca, Ana M.;
Samei, Ehsan;
Frush, Donald P.;
Cao, Joseph Y.

Publication type:

Article

Clinical concordance with Image Gently guidelines for pediatric computed tomography: a study across 663,417 CT scans at 53 clinical facilities.

Published in:

Pediatric Radiology, 2021, v. 51, n. 5, p. 800, doi. 10.1007/s00247-020-04909-5

By:

Smith, Taylor Brunton;
Heil, John;
Frush, Donald P.;
Samei, Ehsan

Publication type:

Article

Radiation risk index for pediatric CT: a patient-derived metric.

Published in:

2017

By:

Samei, Ehsan;
Tian, Xiaoyu;
Paul Segars, W.;
Frush, Donald;
Frush, Donald P

Publication type:

journal article

Pros and cons of organ shielding for CT imaging.

Published in:

Pediatric Radiology, 2014, v. 44, p. 495, doi. 10.1007/s00247-014-3084-z

By:

Samei, Ehsan

Publication type:

Article

Determining organ dose: the holy grail.

Published in:

Pediatric Radiology, 2014, v. 44, p. 460, doi. 10.1007/s00247-014-3117-7

By:

Samei, Ehsan;
Tian, Xiaoyu;
Segars, W.

Publication type:

Article

In silico modeling of a clinical photon‐counting CT system: Verification and validation.

Published in:

Medical Physics, 2025, v. 52, n. 6, p. 3840, doi. 10.1002/mp.17886

By:

McCabe, Cindy;
Harrawood, Brian;
Samei, Ehsan;
Abadi, Ehsan

Publication type:

Article

AAPM Truth‐based CT (TrueCT) reconstruction grand challenge.

Published in:

Medical Physics, 2025, v. 52, n. 4, p. 1978, doi. 10.1002/mp.17619

By:

Abadi, Ehsan;
Segars, W. Paul;
Felice, Nicholas;
Sotoudeh‐Paima, Saman;
Hoffman, Eric A.;
Wang, Xiao;
Wang, Wei;
Clark, Darin;
Ye, Siqi;
Jadick, Giavanna;
Fryling, Milo;
Frush, Donald P.;
Samei, Ehsan

Publication type:

Article

Virtual imaging trials in medicine: A brief takeaway of the lessons from the first international summit.

Published in:

Medical Physics, 2025, v. 52, n. 3, p. 1950, doi. 10.1002/mp.17587

By:

Samei, Ehsan;
Abadi, Ehsan;
Bakic, Predrag;
Bliznakova, Kristina;
Bosmans, Hilde;
Carton, Ann‐Katherine;
Frangi, Alejandro F.;
Glick, Stephen;
Lo, Joseph Y.;
Kinahan, Paul;
Maidment, Andrew;
Ria, Francesco;
Sechopoulos, Ioannis;
Segars, William Paul;
Tanaka, Rie;
Vancoillie, Liesbeth

Publication type:

Article

Development, validation, and application of a generic image‐based noise addition method for simulating reduced dose computed tomography images.

Published in:

Medical Physics, 2025, v. 52, n. 1, p. 171, doi. 10.1002/mp.17444

By:

Alsaihati, Njood;
Solomon, Justin;
McCrum, Erin;
Samei, Ehsan

Publication type:

Article

Toward widespread use of virtual trials in medical imaging innovation and regulatory science.

Published in:

Medical Physics, 2024, v. 51, n. 12, p. 9394, doi. 10.1002/mp.17442

By:

Abadi, Ehsan;
Barufaldi, Bruno;
Lago, Miguel;
Badal, Andreu;
Mello‐Thoms, Claudia;
Bottenus, Nick;
Wangerin, Kristen A.;
Goldburgh, Mitchell;
Tarbox, Lawrence;
Beaucage‐Gauvreau, Erica;
Frangi, Alejandro F.;
Maidment, Andrew;
Kinahan, Paul E.;
Bosmans, Hilde;
Samei, Ehsan

Publication type:

Article

Estimation of threshold thickness of residual normal tissue in lung dysfunction detectable by dynamic chest radiography: A virtual imaging trial.

Published in:

Medical Physics, 2024, v. 51, n. 9, p. 5978, doi. 10.1002/mp.17271

By:

Yamaguchi, Shunya;
Tanaka, Rie;
Matsumoto, Isao;
Ohkura, Noriyuki;
Segars, William Paul;
Abadi, Ehsan;
Samei, Ehsan

Publication type:

Article

A systematic assessment and optimization of photon‐counting CT for lung density quantifications.

Published in:

Medical Physics, 2024, v. 51, n. 4, p. 2893, doi. 10.1002/mp.16987

By:

Sotoudeh‐Paima, Saman;
Segars, W. Paul;
Ghosh, Dhrubajyoti;
Luo, Sheng;
Samei, Ehsan;
Abadi, Ehsan

Publication type:

Article

Development of physiologically‐informed computational coronary artery plaques for use in virtual imaging trials.

Published in:

Medical Physics, 2024, v. 51, n. 3, p. 1583, doi. 10.1002/mp.16959

By:

Sauer, Thomas J.;
Buckler, Andrew J.;
Abadi, Ehsan;
Daubert, Melissa;
Douglas, Pamela S.;
Samei, Ehsan;
Segars, William P.

Publication type:

Article

A systematic task‐based image quality assessment of photon‐counting and energy integrating CT as a function of reconstruction kernel and phantom size.

Published in:

Medical Physics, 2024, v. 51, n. 2, p. 1047, doi. 10.1002/mp.16619

By:

Bhattarai, Mridul;
Bache, Steve;
Abadi, Ehsan;
Samei, Ehsan

Publication type:

Article

Pulsed wave Doppler ultrasound: Accuracy, variability, and impact of acquisition parameters on flow measurements.

Published in:

Medical Physics, 2023, v. 50, n. 11, p. 6704, doi. 10.1002/mp.16774

By:

Russ, Megan K.;
Lafata, Nicole M.;
Robertson, Scott H.;
Samei, Ehsan

Publication type:

Article

Exploration of the pulse pileup effects in a clinical CdTe‐based photon‐counting computed tomography.

Published in:

Medical Physics, 2023, v. 50, n. 11, p. 6693, doi. 10.1002/mp.16671

By:

Bhattarai, Mridul;
Bache, Steve;
Abadi, Ehsan;
Samei, Ehsan

Publication type:

Article

Quantitative performance of photon‐counting CT at low dose: Virtual monochromatic imaging and iodine quantification.

Published in:

Medical Physics, 2023, v. 50, n. 9, p. 5421, doi. 10.1002/mp.16583

By:

Vrbaski, Stevan;
Bache, Steve;
Rajagopal, Jayasai;
Samei, Ehsan

Publication type:

Article

Development and CT image‐domain validation of a computational lung lesion model for use in virtual imaging trials.

Published in:

Medical Physics, 2023, v. 50, n. 7, p. 4366, doi. 10.1002/mp.16222

By:

Sauer, Thomas J.;
Bejan, Adrian;
Segars, Paul;
Samei, Ehsan

Publication type:

Article

AAPM President: 2023.

Published in:

Medical Physics, 2023, v. 50, p. 159, doi. 10.1002/mp.16037

By:

Samei, Ehsan

Publication type:

Article

Task‐based validation and application of a scanner‐specific CT simulator using an anthropomorphic phantom.

Published in:

Medical Physics, 2022, v. 49, n. 12, p. 7447, doi. 10.1002/mp.15967

By:

Shankar, Sachin S.;
Felice, Nicholas;
Hoffman, Eric A.;
Atha, Jarron;
Sieren, Jessica C.;
Samei, Ehsan;
Abadi, Ehsan

Publication type:

Article

Dose coefficients for organ dosimetry in tomosynthesis imaging of adults and pediatrics across diverse protocols.

Published in:

Medical Physics, 2022, v. 49, n. 8, p. 5439, doi. 10.1002/mp.15798

By:

Sharma, Shobhit;
Kapadia, Anuj;
Ria, Francesco;
Segars, W. Paul;
Samei, Ehsan

Publication type:

Article

Generative learning approach for radiation dose reduction in X‐ray guided cardiac interventions.

Published in:

Medical Physics, 2022, v. 49, n. 6, p. 4071, doi. 10.1002/mp.15654

By:

Azizmohammadi, Fariba;
Navarro Castellanos, Iñaki;
Miró, Joaquim;
Segars, Paul;
Samei, Ehsan;
Duong, Luc

Publication type:

Article

Anatomically and physiologically informed computational model of hepatic contrast perfusion for virtual imaging trials.

Published in:

Medical Physics, 2022, v. 49, n. 5, p. 2938, doi. 10.1002/mp.15562

By:

Sauer, Thomas J.;
Abadi, Ehsan;
Segars, Paul;
Samei, Ehsan

Publication type:

Article

Technical note: Controlling the attenuation of 3D‐printed physical phantoms for computed tomography with a single material.

Published in:

Medical Physics, 2022, v. 49, n. 4, p. 2582, doi. 10.1002/mp.15494

By:

Tong, Huayu;
Pegues, Hope;
Samei, Ehsan;
Lo, Joseph Y.;
Wiley, Benjamin J.

Publication type:

Article

A GPU‐accelerated framework for individualized estimation of organ doses in digital tomosynthesis.

Published in:

Medical Physics, 2022, v. 49, n. 2, p. 891, doi. 10.1002/mp.15400

By:

Sharma, Shobhit;
Kapadia, Anuj;
Brown, Justin;
Segars, William Paul;
Bolch, Wesley;
Samei, Ehsan

Publication type:

Article

Development, validation, and relevance of in vivo low‐contrast task transfer function to estimate detectability in clinical CT images.

Published in:

Medical Physics, 2021, v. 48, n. 12, p. 7698, doi. 10.1002/mp.15309

By:

Smith, Taylor Brunton;
Abadi, Ehsan;
Solomon, Justin;
Samei, Ehsan

Publication type:

Article

Assessment of pleural invasion and adhesion of lung tumors with dynamic chest radiography: A virtual clinical imaging study.

Published in:

Medical Physics, 2021, v. 48, n. 4, p. 1616, doi. 10.1002/mp.14750

By:

Tanaka, Rie;
Samei, Ehsan;
Segars, William Paul;
Abadi, Ehsan;
Matsumoto, Isao;
Tamura, Masaya;
Takata, Munehisa;
Yamashiro, Tsuneo

Publication type:

Article