Zobrazeno 1 - 10
of 58
pro vyhledávání: '"James P. Hubenschmidt"'
Publikováno v:
Medical Physics. 33:2964-2974
Respiratory motion can cause significant dose delivery errors in conformal radiation therapy for thoracic and upper abdominal tumors. Four-dimensional computed tomography (4D CT) has been proposed to provide the image data necessary to model tumor mo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::446e7fa1fbd1ff11dd1013c57facd5de
https://doi.org/10.1118/1.2219772
https://doi.org/10.1118/1.2219772
Autor:
Parag J. Parikh, James P. Hubenschmidt, James F. Dempsey, Sasha H. Wahab, Wei Lu, Jeffrey D. Bradley, M. Nystrom, Daniel A. Low, Maureen Handoko
Publikováno v:
International Journal of Radiation Oncology*Biology*Physics. 63:921-929
Purpose: An accurate model of breathing motion under quiet respiration is desirable to obtain the most accurate and conformal dose distributions for mobile lung cancer lesions. On the basis of recent lung motion measurements and the physiologic funct
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0d27860e502424b83e180d9b550dd0a9
https://doi.org/10.1016/j.ijrobp.2005.03.070
https://doi.org/10.1016/j.ijrobp.2005.03.070
Autor:
Parag J. Parikh, James P. Hubenschmidt, Bruce R. Whiting, Daniel A. Low, David G. Politte, Wei Lu, Sasa Mutic, Jeffrey D. Bradley
Publikováno v:
Medical Physics. 32:3295-3304
Techniques have been developed for reducing motion blurring artifacts by using respiratory gated computed tomography (CT) in sinogram space and quantitatively evaluating the artifact reduction. A synthetic sinogram was built from multiple scans inter
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bab2e425b46091319a9840bc4be522e6
https://doi.org/10.1118/1.2074187
https://doi.org/10.1118/1.2074187
Autor:
Sasha H. Wahab, Wei Lu, Anurag K. Singh, Gary E. Christensen, Daniel A. Low, M. Nystrom, Parag J. Parikh, James P. Hubenschmidt, Issam El Naqa, Sasa Mutic, Jeffrey D. Bradley
Publikováno v:
Medical Physics. 32:890-901
sReceived 1 July 2004; revised 21 January 2005; accepted for publication 21 January 2005;published 16 March 2005dWe have developed a four-dimensional computed tomography s4D CTd technique for mappingbreathing motion in radiotherapy treatment planning
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1ca7d042d928e830fc08fce50b8de23e
https://doi.org/10.1118/1.1870152
https://doi.org/10.1118/1.1870152
Autor:
Tianyu Zhao, K Lechleiter, Jeffrey D. Bradley, Parag J. Parikh, James P. Hubenschmidt, Wei Lu, Eric D. Donnelly, Daniel A. Low, M. Nystrom
Purpose To quantify the amount of free-breathing motion measured using Four-dimensional (4D) CT scans of mediastinal and hilar lymph nodes and to compare this motion to the primary lung tumor motion. Methods and Materials Twenty patients with primary
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5de0da6e5a62387baaef9a891481b02a
https://europepmc.org/articles/PMC2149909/
https://europepmc.org/articles/PMC2149909/
Autor:
Steven C. Dimmer, Wei Lu, Daniel A. Low, A. Chaudhari, Parag J. Parikh, Jeffrey D. Bradley, James P. Hubenschmidt, Martin L. Mayse, K Lechleiter
Publikováno v:
SPIE Proceedings.
Three-dimensional volumetric imaging correlated with respiration (4DCT) typically utilizes external breathing surrogates and phase-based models to determine lung tissue motion. However, 4DCT requires time consuming post-processing and the relationshi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::30f46e71e9588dc90484858f3ff8e425
https://doi.org/10.1117/12.710203
https://doi.org/10.1117/12.710203
Autor:
Wei Lu, K Lechleiter, Parag J. Parikh, James P. Hubenschmidt, K Malinowski, Camille Noel, Daniel A. Low
Publikováno v:
SPIE Proceedings.
In many patients respiratory motion causes motion artifacts in CT images, thereby inhibiting precise treatment planning and lowering the ability to target radiation to tumors. The 4D Phantom, which includes a 3D stage and a 1D stage that each are cap
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::20450d7317888691a08fb7e5ed91768e
https://doi.org/10.1117/12.713841
https://doi.org/10.1117/12.713841
Autor:
Paul Klahr, Jeffrey D. Bradley, Wei Lu, Daniel A. Low, M. Nystrom, Parag J. Parikh, Jeffrey R. Olsen, James P. Hubenschmidt
Publikováno v:
International journal of radiation oncology, biology, physics. 70(1)
Purpose Respiratory motion is a significant source of anatomic uncertainty in radiotherapy planning and can result in errors of portal size and the subsequent radiation dose. Although four-dimensional computed tomography allows for more accurate anal
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::439f339cdeaebcca00950b55ca046a9b
https://pubmed.ncbi.nlm.nih.gov/18037590
https://pubmed.ncbi.nlm.nih.gov/18037590
Autor:
Wei, Lu, Michelle M, Nystrom, Parag J, Parikh, David R, Fooshee, James P, Hubenschmidt, Jeffrey D, Bradley, Daniel A, Low
Publikováno v:
Medical physics. 33(10)
The existing commercial software often inadequately determines respiratory peaks for patients in respiration correlated computed tomography. A semi-automatic method was developed for peak and valley detection in free-breathing respiratory waveforms.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::4d2d278481ed03ec2bc0ee021410e0ef
https://pubmed.ncbi.nlm.nih.gov/17089828
https://pubmed.ncbi.nlm.nih.gov/17089828
Publikováno v:
Medical physics. 33(8)
Respiratory motion can cause significant dose delivery errors in conformal radiation therapy for thoracic and upper abdominal tumors. Four-dimensional computed tomography (4D CT) has been proposed to provide the image data necessary to model tumor mo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::d68911a7347f707c44f7e55fb65294c2
https://pubmed.ncbi.nlm.nih.gov/16964875
https://pubmed.ncbi.nlm.nih.gov/16964875