Results 131 to 140 of about 144,582 (289)

PD46-01 COMPARISON OF RADIATION DOSAGES BETWEEN CT-GUIDED AND ULTRASOUND-FACILITATED CT-GUIDED PERCUTANEOUS CRYOABLATION OF SMALL RENAL CORTICAL NEOPLASMS [PDF]

, 2016
Rahul Dutta, Kamaljot S. Kaler, Simone L. Vernez, Zhamshid Okhunov, Ramy F. Youssef, Jaime Landman, Kari Nelson   +6 more
openalex   +1 more source

Measurement of CT radiation beam width with a pencil ionization chamber and radiopaque mask

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Purpose This study compares fan beam CT scanner radiation beam widths measured with a pencil ionization chamber‐radiopaque mask technique with commonly used film and computed radiography (CR) measurements. Methods For a given fan beam CT scanner x‐ray beam, the ionization chamber‐mask technique determines the radiation beam width by exposing a
Rani Al‐Senan, David M. Gauntt, Gary T. Barnes   +2 more
wiley   +1 more source

Measurement of tissue-radiation dosage using a thermal steady-state elastic shear wave [PDF]

, 2017
Sheng-Yi Chang, Tung-Sheng Hsieh, Weiru Chen, Jin‐Chung Chen, Chien Chou   +4 more
openalex   +1 more source

Evaluation of daily residual pancreatic tumor motion for deep‐inspiration breath‐hold radiotherapy

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Purpose Breath‐hold techniques are widely used in radiation therapy to minimize respiratory‐induced tumor or organ‐at‐risk motion. However, residual motion persists, necessitating a reliable daily evaluation method. Methods At our institution, fiducial markers serve as surrogates for target localization in pancreatic cancer treatment.
Weihua Mao, Binbin Wu, Kai Ding, Sarah Han‐Oh, Amol Narang   +4 more
wiley   +1 more source

A Segmentation-based Automated Calculation of Patient Size and Size-specific Dose Estimates in Pediatric Computed Tomography Scans

Journal of Medical Physics
Background and Purpose: Size-specific dose estimates (SSDE) have been introduced into computed tomography (CT) dosimetry to tailor patients’ unique sizes to facilitate accurate CT radiation dose quantification and optimization.
Muhammad Kabir Abdulkadir, Noor Diyana Osman, Anusha Achuthan, Radin A. Nasirudin, Muhammad Zabidi Ahmad, Noor Hasyima Mat Zain, Ibrahim Lutfi Shuaib   +6 more
doaj   +1 more source

[Cone beam computed tomography and radiation dosage: application frequency and knowledge of dentists in Switzerland].

, 2014
Britt‐Isabelle Berg, Anja Gertsch, Hans‐Florian Zeilhofer, K. Schwenzer-Zimmerer, Scott Berg, Stefan Haßfeld, Philipp Jürgens   +6 more
openalex   +2 more sources

P3354Significant reduction of radiation dosage in device implantation procedures using image noise reduction technology [PDF]

, 2017
Rainer Hoffmann, Lukas Langenbrink, Mirlind Kastrati, Michal Piatkowski, Doris Reimann, Jochen Michaelsen   +5 more
openalex   +1 more source

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

Fluoroscopic-Guided vs. Multislice Computed Tomography (CT) Biopsy Mode-Guided Percutaneous Radiologic Gastrostomy (PRG)—Comparison of Interventional Parameters and Billing

Diagnostics
Background: This study investigated and compared the efficacy, safety, radiation exposure, and financial compensation of two modalities for percutaneous radiologic gastrostomy (PRG): multislice computed tomography biopsy mode (MS-CT BM)-guided and ...
Michael P. Brönnimann, Jagoda Kulagowska, Bernhard Gebauer, Timo A. Auer, Federico Collettini, Dirk Schnapauff, Christian T. J. Magyar, Alois Komarek, Miltiadis Krokidis, Johannes T. Heverhagen   +9 more
doaj   +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