Zobrazeno 1 - 10
of 89
pro vyhledávání: '"Martin D. Altschuler"'
Publikováno v:
Physics in Medicine and Biology. 53:4107-4121
The three-dimensional (3D) heterogeneous distributions of optical properties in a patient prostate can now be measured in vivo. Such data can be used to obtain a more accurate light-fluence kernel. (For specified sources and points, the kernel gives
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3a75b5175986be1983d7cba843440753
https://doi.org/10.1088/0031-9155/53/15/007
https://doi.org/10.1088/0031-9155/53/15/007
Publikováno v:
Proceedings of SPIE--the International Society for Optical Engineering. 5689
To deliver uniform photodynamic dose to the prostate gland, it is necessary to develop algorithms that optimize the location and strength (emitted power × illumination time) of each light source. Since tissue optical properties may change with time,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::40fb558099d6f7bacf852c40d5d351ab
https://pubmed.ncbi.nlm.nih.gov/26136612
https://pubmed.ncbi.nlm.nih.gov/26136612
Autor:
Stephen M. Hahn, Keith A. Cengel, Martin D. Altschuler, Jarod C. Finlay, Yida Hu, Timothy C. Zhu, Ken Wang, Andreea Dimofte
Publikováno v:
Proceedings of SPIE--the International Society for Optical Engineering. 7551
Singlet oxygen (1O2) is the major cytotoxic agent for type II photodynamic therapy (PDT). The production of 1O2 involves the complex reactions among light, oxygen molecule, and photosensitizer. From universal macroscopic kinetic equations which descr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cd54c32c738f4b491b6888108c45b5bb
https://pubmed.ncbi.nlm.nih.gov/25995533
https://pubmed.ncbi.nlm.nih.gov/25995533
Publikováno v:
Medical Physics. 32:3524-3536
The primary aim of this study was to determine whether optimized photodynamic therapy(PDT) treatment planning (seeking optimized positions, lengths, and strengths of the light sources to satisfy a given dose prescription) can improve dose coverage to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2a9c0c869bcb4916f6e10c87a69d5234
https://doi.org/10.1118/1.2107047
https://doi.org/10.1118/1.2107047
Autor:
Rex Cheung, Richard Whittington, Martin D. Altschuler, Anthony V. D'Amico, S. Bruce Malkowicz, Alan J. Wein
Publikováno v:
Urology. 57:286-290
Objectives. Rational treatment decision requires accurate projection of the clinical course of a patient. Current methods in clinical outcome analysis mostly focus on population data. We investigated the applicability and optimization of the widely u
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c1a1a4fcd0782dddac3c0f98960bdb7c
https://doi.org/10.1016/s0090-4295(00)00911-0
https://doi.org/10.1016/s0090-4295(00)00911-0
A quality assurance device for the accuracy of the isocentres of teletherapy and simulation machines
Autor:
Bijan Arjomandy, Martin D. Altschuler
Publikováno v:
Physics in Medicine and Biology. 45:2207-2217
A new quality assurance device has been designed to measure the location and wobble of the radiation isocentre of linacs and simulation machines as a function of gantry rotation. The radiation isocentre is the intersection in space of the central x r
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b1ec280a92728aa21abfd316d4c6bd6e
https://doi.org/10.1088/0031-9155/45/8/310
https://doi.org/10.1088/0031-9155/45/8/310
Autor:
Alireza Kassaee, Martin D. Altschuler
Publikováno v:
Medical Physics. 21:643-650
A difficult, error-prone, and time consuming problem in brachytherapy is the determination of the three-dimensional (3-D) positions of implanted seeds. To triangulate 3-D seed positions, the corresponding seed images in radiographs taken at different
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::98cf4bdc948ba56823911d05aadf62cd
https://doi.org/10.1118/1.597318
https://doi.org/10.1118/1.597318
Publikováno v:
Radiation Oncology Investigations. 1:235-248
For clinical cases with difficult combinations of patient parameter values, treatment selection may be complex or controversial and require considerable time. Treatment selection may be affected by a clinician's experience with a disease and expertis
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6615490cc32dd5e2f9d8dfc048008c67
https://doi.org/10.1002/roi.2970010407
https://doi.org/10.1002/roi.2970010407
Publikováno v:
Physics in Medicine and Biology. 37:391-411
A new method has been implemented to calculate rapidly and accurately the three-dimensional dose distribution induced in a heterogeneous volume by one or more electron and/or photon beams. The algorithm is based on the pre-calculation by Monte Carlo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::af56456e1e6094488c8e6613758aaa7d
https://doi.org/10.1088/0031-9155/37/2/007
https://doi.org/10.1088/0031-9155/37/2/007
Autor:
Jarod C. Finlay, Timothy C. Zhu, Martin D. Altschuler, Andreea Dimofte, Stephen M. Hahn, Yida Hu, Keith A. Cengel, Jun Li, Ken Wang, S. B. Malkowicz
Publikováno v:
SPIE Proceedings.
The object of this study is to develop optimization procedures that account for both the optical heterogeneity as well as photosensitizer (PS) drug distribution of the patient prostate and thereby enable delivery of uniform photodynamic dose to that
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ada5c18b375891bdecee2856f7134b39
https://doi.org/10.1117/12.809897
https://doi.org/10.1117/12.809897