Zobrazeno 1 - 10
of 24
pro vyhledávání: '"Joshua Grimes"'
Autor:
Katayoun Saatchi, François Bénard, Navjit Hundal, Joshua Grimes, Sergey Shcherbinin, Maral Pourghiasian, Donald E. Brooks, Anna Celler, Urs O. Häfeli
Publikováno v:
Pharmaceutics, Vol 15, Iss 3, p 767 (2023)
Cardiac blood pool imaging is currently performed almost exclusively with 99mTc-based compounds and SPECT/CT imaging. Using a generator-based PET radioisotope has a few advantages, including not needing nuclear reactors to produce it, obtaining bette
Externí odkaz:
https://doaj.org/article/e172bac4bc4d433fb094082fc756a4be
Autor:
Joshua Grimes, Joel G. Fletcher, Shuai Leng, Lifeng Yu, Gregory J. Michalak, Cynthia H. McCollough, Ahmed F. Halaweish
Publikováno v:
Abdominal Radiology. 42:2289-2296
To determine the appropriate tube potential settings for dual-source, dual-energy data acquisition across a range of phantom sizes, and to determine the optimal photon energies for virtual mono-energetic imaging. Water phantoms (15–50-cm wide) cont
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a614ff57393cb5bd3e0e2ac7cce3fc6b
https://doi.org/10.1007/s00261-017-1122-7
https://doi.org/10.1007/s00261-017-1122-7
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:
Joshua Grimes, Lifeng Yu, Shuai Leng, Ahmed F. Halaweish, Cynthia H. McCollough, Joel G. Fletcher, Gregory J. Michalak
Publikováno v:
Medical Physics. 43:513-517
Purpose: The purpose of this study was to evaluate, over a wide range of phantom sizes, CT number stability achieved using two techniques for generating dual-energy computed tomography (DECT) virtual monoenergetic images. Methods: Water phantoms rang
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ae48ccfd7b664af1c0f1275125810dd1
https://doi.org/10.1118/1.4939128
https://doi.org/10.1118/1.4939128
Autor:
Lifeng Yu, Joshua Grimes, Nicole Haag, Cynthia H. McCollough, Shuai Leng, Xinhui Duan, Ahmed F. Halaweish
Publikováno v:
Medical Physics. 42:6011-6020
Purpose: The objective of this work was to investigate focal spot blooming effects on the spatial resolution of CT images and to evaluate an x-ray tube that uses dynamic focal spot control for minimizing focal spot blooming. Methods: The influence of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c3e7b6d23aeca4484ac7801795b108c4
https://doi.org/10.1118/1.4931053
https://doi.org/10.1118/1.4931053
Publikováno v:
Physics in Medicine and Biology. 59:119-134
We demonstrate that accurate patient-specific distributions of microspheres labeled with 188Re and resulting absorbed doses can be obtained from single-photon emission computed tomography (SPECT) studies performed after 188Re selective internal radia
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b69126764e397f023506a284d99e5cd5
https://doi.org/10.1088/0031-9155/59/1/119
https://doi.org/10.1088/0031-9155/59/1/119
Autor:
Gregory, Michalak, Joshua, Grimes, Joel, Fletcher, Ahmed, Halaweish, Lifeng, Yu, Shuai, Leng, Cynthia, McCollough
Publikováno v:
Medical physics. 43(1)
The purpose of this study was to evaluate, over a wide range of phantom sizes, CT number stability achieved using two techniques for generating dual-energy computed tomography (DECT) virtual monoenergetic images.Water phantoms ranging in lateral diam
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::6a37fedc6cfdd439047bcf499913350b
https://pubmed.ncbi.nlm.nih.gov/26745944
https://pubmed.ncbi.nlm.nih.gov/26745944
Publikováno v:
Scopus-Elsevier
OBJECTIVE Our aim was to design a practical and reproducible image segmentation method for calculations of total absorbed doses in organs and tumours for internally delivered radioisotopes. We have built upon our previously proposed use of two separa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cef58ad5a55caf9c14318724d24b1786
https://doi.org/10.1097/mnm.0b013e3283598395
https://doi.org/10.1097/mnm.0b013e3283598395
Autor:
Joshua Grimes, Piotr Zorga, Anna Celler, Bozena Birkenfeld, Maria H. Listewnik, Renata Mikolajczak, Sergey Shcherbinin, Hanna Piwowarska-Bilska
Publikováno v:
Journal of Nuclear Medicine. 52:1474-1481
99mTc-hydrazinonicotinamide-Tyr3-octreotide (99mTc-HYNIC-TOC) is increasingly gaining acceptance as a new radiopharmaceutical for the diagnosis of pathologic lesions overexpressing somatostatin receptors. However, little information has been publishe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::985e146d4b9f43562b6ed8898a30fb51
https://doi.org/10.2967/jnumed.111.088203
https://doi.org/10.2967/jnumed.111.088203
Autor:
Joshua, Grimes, Xinhui, Duan, Lifeng, Yu, Ahmed F, Halaweish, Nicole, Haag, Shuai, Leng, Cynthia, McCollough
Publikováno v:
Medical physics. 42(10)
The objective of this work was to investigate focal spot blooming effects on the spatial resolution of CT images and to evaluate an x-ray tube that uses dynamic focal spot control for minimizing focal spot blooming.The influence of increasing tube cu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::9a5fe40eccf085c9db83eaaab249222a
https://pubmed.ncbi.nlm.nih.gov/26429276
https://pubmed.ncbi.nlm.nih.gov/26429276