Results 131 to 140 of about 196,666 (323)

Does dose calculation algorithm affect the dosimetric accuracy of synthetic CT for MR‐only radiotherapy planning in brain tumors?

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Purpose This study compares the dosimetric accuracy of deep‐learning‐based MR synthetic CT (sCT) in brain radiotherapy between the Analytical Anisotropic Algorithm (AAA) and AcurosXB (AXB). Additionally, it proposes a novel metric to predict the dosimetric accuracy of sCT for individual post‐surgical brain cases.
Jeffrey C. F. Lui, Francis K. H. Lee, C. C. Law, James C. H. Chow   +3 more
wiley   +1 more source

Giant coronary artery fistula: A case report

Radiology Case Reports, 2023
Coronary artery fistulas (CAFs) are abnormal connections of coronary arteries where venous circuits bypass the normal capillaries in the myocardium. CAFs are rare, and most patients are asymptomatic.
Pham-Thi Thao Trang, MD, Tran Chi Cuong, MD, PhD, Nguyen Manh Cuong, MD, Do Nguyen Tin, MD, PhD, Nguyen Tran Tran, MD, Le Minh Thang, MD, Tran Hoa, MD, PhD, Bui The Dung, MD, PhD, Tran Ba Hieu, MD, Nguyen Minh Duc, MD   +9 more
doaj  

Low Energy ππ Scattering and the Veneziano Model with a Subtraction Constant [PDF]

, 1972
Shogo Miyake
openalex   +1 more source

Modelling of a double‐scattering proton therapy nozzle using the FLUKA Monte Carlo code and analysis of linear energy transfer in patients treated for prostate cancer

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Background The dose‐averaged linear energy transfer (LETD) in proton therapy (PT) has in pre‐clinical studies been linked to the relative biological effectiveness (RBE) of protons. Until recently, the most common PT delivery method in prostate cancer has been double‐scattered PT, with LETD only available through dedicated Monte Carlo (MC ...
Rasmus Klitgaard, Lars Fredrik Fjæra, Camilla Hanquist Stokkevåg, Perry Johnson, Mark Artz, Nancy Price Mendenhall, Curtis Bryant, Ludvig Paul Muren   +7 more
wiley   +1 more source

Assessing HyperSight iterative CBCT for dose calculation in online adaptive radiotherapy for pelvis and breast patients compared to synthetic CT

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Purpose/objectives Recent technological advancements have increased efficiency for clinical deliverability of online‐adaptive‐radiotherapy (oART). Previous cone‐beam‐computed‐tomography (CBCT) generations lacked the ability to provide reliable Hounsfield‐units (HU), thus requiring oART workflows to rely on synthetic‐CT (sCT) images derived ...
Jingwei Duan, Joel A. Pogue, Dennis N. Stanley, Sui Shen, Natalie N. Viscariello, Carlos E. Cardenas, Richard A. Popple, Joseph Harms   +7 more
wiley   +1 more source

Multimode theory of single-photon subtraction

New Journal of Physics, 2016
We develop a general theory to describe the manipulation of a multimode quantum state of light via the subtraction of a single photon. The theory is applicable for various types of subtraction schemes independent of the physical nature of the light modes,
V Averchenko, C Jacquard, V Thiel, C Fabre, N Treps   +4 more
doaj   +1 more source

⁶⁷GA-Subtraction Scanning in Hodgkin's Disease and Lymphomas [PDF]

, 1978
H. Krolikiewicz, Yosh Maruyama, F. H. DeLand, Robert M. Beihn, T. Hafner, EE Kim   +5 more
openalex   +1 more source

Commissioning of Halcyon enhanced leaf model in the Eclipse treatment planning system: Focus on simple slit fields and VMAT dose calculation

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Purpose The dual‐layer multileaf collimator (MLC) in Halcyon adds complexities to the dose calculation process owing to the variability of dosimetric characteristics with leaf motion. Recently, an enhanced leaf model (ELM) was developed to refine the MLC model in the Eclipse treatment planning system. This study investigates the performance of
Ryohei Miyasaka, Mari Shirai, Mitsunobu Igari, Yume Kojima, Yuki Kozawa, Toru Kawachi, Ryusuke Hara   +6 more
wiley   +1 more source

Location of parathyroid adenomas by thallium-201 and technetium-99m subtraction scanning. [PDF]

, 1983
A E Young, J. I. Gaunt, D. N. Croft, R E C Collins, C. P. Wells, A. J. Coakley   +5 more
openalex   +1 more source

Impact of acceleration treatment on treatment plan and delivery qualities in tomotherapy for lung cancer

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Background Acceleration treatment (AT) is a novel treatment planning parameter introduced in the tomotherapy‐dedicated treatment planning system, Precision. This study explores the effects of AT on tomotherapy plans using helical (TomoHelical) and direct (TomoDirect) irradiation techniques.
Ryosuke Shirata, Tatsuya Inoue, Yugo Ebinuma, Akihiro Yamano, Takayuki Yagihashi, Hironori Nagata, Yumiko Minagawa, Yuki Mukai, Akiko Sato, Motoko Omura   +9 more
wiley   +1 more source