Zobrazeno 1 - 10
of 24
pro vyhledávání: '"Thomas J. Vrieze"'
Autor:
Cynthia H. McCollough, Shannon L. McCollough, Justine J. Schneider, Taylor R. Moen, Jayse M. Weaver, Thomas J. Vrieze, Lifeng Yu, Shuai Leng
Publikováno v:
Radiology. 303(2)
Background The size-specific dose estimate (SSDE) is a patient-focused CT dose metric. However, published size-dependent conversion factors (
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8c6e9d3da680f7c68b2f565df3cc0558
https://pubmed.ncbi.nlm.nih.gov/35040681
https://pubmed.ncbi.nlm.nih.gov/35040681
Publikováno v:
Medical Physics. 46:5538-5543
Purpose The aim of this study was to demonstrate that a low helical pitch causes increased photon starvation artifacts at ultra-low-dose CT. Methods A cylindrical water phantom with a diameter of 30 cm was scanned on two different generation CT scann
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9faf468c01279420fbc22c23debb5510
https://doi.org/10.1002/mp.13845
https://doi.org/10.1002/mp.13845
Publikováno v:
American Journal of Roentgenology. 212:151-156
The purpose of this study was to quantify the dose reduction resulting from the use of lead aprons for pediatric chest CT as a function of the distance between the apron and the bottom of the scan range.Semianthropomorphic phantoms of the head, abdom
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::347e1891e5c4ab0574c3fd3a4a0bc4b5
https://doi.org/10.2214/ajr.17.19405
https://doi.org/10.2214/ajr.17.19405
Autor:
Cynthia H. McCollough, Lifeng Yu, Bart L. Clarke, Thomas J. Vrieze, Peter J. Tebben, Guido Zavatta
Publikováno v:
The Journal of clinical endocrinology and metabolism. 106(7)
Context Hypoparathyroidism is characterized by low serum calcium, increased serum phosphorus, and inappropriately low or decreased serum parathyroid hormone, which may be associated with soft tissue calcification in the basal ganglia of the brain. Ob
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f2581133b72b9c162b59f0b5b6f42baa
https://pubmed.ncbi.nlm.nih.gov/33788935
https://pubmed.ncbi.nlm.nih.gov/33788935
Publikováno v:
Journal of Applied Clinical Medical Physics
Protocol review is important to decrease the risk of patient injury and increase the consistency of CT image quality. A large volume of CT protocols makes manual review labor‐intensive, error‐prone, and costly. To address these challenges, we hav
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::756b3eb04ae11d3d9367ff9de87de524
http://europepmc.org/articles/PMC5874106
http://europepmc.org/articles/PMC5874106
Autor:
Amy E. Alexander, Jane M. Matsumoto, Thomas J. Vrieze, Cynthia H. McCollough, Kiaran P. McGee, Jonathan M. Morris, Shuai Leng, Joel Kuhlmann
Publikováno v:
3d Printing in Medicine
3D Printing in Medicine, Vol 3, Iss 1, Pp 1-14 (2017)
3D Printing in Medicine, Vol 3, Iss 1, Pp 1-14 (2017)
Background The purpose of this study is to provide a framework for the development of a quality assurance (QA) program for use in medical 3D printing applications. An interdisciplinary QA team was built with expertise from all aspects of 3D printing.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::93942313e32d47162f17bcc391e6bebb
http://europepmc.org/articles/PMC5954797
http://europepmc.org/articles/PMC5954797
Autor:
Cynthia H. McCollough, Thomas J. Vrieze, Xinhui Duan, Gregory J. Michalak, Yu Liu, Mingliang Qu, Maria M. Shiung, Joel G. Fletcher, Shuai Leng
Publikováno v:
Journal of Computer Assisted Tomography. 38:398-403
To investigate whether the integrated circuit (IC) detector results in reduced noise in computed tomography (CT) colonography (CTC).Three hundred sixty-six consecutive patients underwent clinically indicated CTC using the same CT scanner system, exce
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1a0d969a7bc9b47aa88cccbfad537519
https://doi.org/10.1097/rct.0000000000000081
https://doi.org/10.1097/rct.0000000000000081
Autor:
Shuai Leng, James M. Kofler, Lifeng Yu, Christopher P. Favazza, Thomas J. Vrieze, Cynthia H. McCollough, Baiyu Chen
Publikováno v:
SPIE Proceedings.
The use of Fourier domain model observer is challenged by iterative reconstruction (IR), because IR algorithms are nonlinear and IR images have noise texture different from that of FBP. A modified Fourier domain model observer, which incorporates non
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8770edca5124d2616f1088db84b8baca
https://doi.org/10.1117/12.2216962
https://doi.org/10.1117/12.2216962
Publikováno v:
Medical Physics. 39:6580-6584
Purpose: To determine the precision and accuracy of CTDI{sub 100} measurements made using commercially available optically stimulated luminescent (OSL) dosimeters (Landaur, Inc.) as beam width, tube potential, and attenuating material were varied. Me
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::316f6c3e2291f7b7a3f028b698f6ad45
https://doi.org/10.1118/1.4754591
https://doi.org/10.1118/1.4754591
Autor:
Shuai Leng, Thomas D. Atwell, Thomas J. Vrieze, Stephanie K. Carlson, Jodie A. Christner, Cynthia H. McCollough, Megan C. Jacobsen
Publikováno v:
American Journal of Roentgenology. 197:W97-W103
The purpose of this study was to determine typical radiation dose levels to patients undergoing CT-guided interventional procedures.A total of 571 patients undergoing CT interventional procedures were included in this retrospective data analysis stud
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::15b8f53ee2afe5b15fb1ada934a02f2c
https://doi.org/10.2214/ajr.10.5057
https://doi.org/10.2214/ajr.10.5057