Results 211 to 220 of about 7,531,616 (402)

Evaluation of dosimetric and spatial accuracy of a virtual cone technique for radiosurgery using linac‐integrated CBCT‐based polymer gel dosimetry

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Purpose This study evaluates the dosimetric and geometric precision of a virtual cone technique using CBCT‐based polymer gel dosimetry, enabling radiation delivery, and imaging readout within an identical spatial coordinate system. Methods We created a C# script for a virtual cone technique that generates a treatment plan with 10 gantry arcs ...
Tenzin Kunkyab, Michael Lamey, Andrew Jirasek, Michael Kudla, Nathan Becker, Benjamin Mou, Derek Hyde   +6 more
wiley   +1 more source

The State of Order in Cellulose as Revealed from X-Ray Diffractograms. [PDF]

, 1958
J. Gjønnes, Nicolai Norman, H. Viervoll, Margareta Zackrisson, Lars Ernster, E. Diczfalusy   +5 more
openalex   +1 more source

Evaluation of the system accuracy of frameless stereotactic radiosurgery using a combination of cone beam CT, six degrees of freedom couch, and surface image‐guided systems

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Purpose This study aims to evaluate the accuracy of the frameless linear accelerator‐based stereotactic radiosurgery (FSRS) system incorporating cone‐beam CT (CBCT), six degrees of freedom (6‐DoF) couch, room laser, and surface image‐guided (SG) systems.
Hao‐Wen Cheng, Jonathan Li, Sheng‐Hsuan Sun, Guanghua Yan, Chihray Liu   +4 more
wiley   +1 more source

FREQUENCY OF COMMON CAUSES OF REJECTED/REPEATED CHEST X–RAYS IN RADIOLOGY DEPARTMENT OF A TEACHING HOSPITAL

Gomal Journal of Medical Sciences, 2017
Background: The employment of reject analysis as part of overall Quality Assurance (QA) programs in clinical radiography and radiology services in the evaluation of image quality is a well established practice.
Shaista Khan, Muhammad Zubair Zahir, Jawad Khan, Zahir Shah   +3 more
doaj  

Crystals and X-Rays [PDF]

, 1950
Kathleen Lonsdale, Jesse W. M. DuMond
openalex   +1 more source

Shielding resources for four common radiopharmaceuticals utilized for imaging and therapy: Tc‐99m, F‐18, I‐131, and Lu‐177

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Introduction The use of radioactive materials in the United States has been tightly regulated by the Nuclear Regulatory Commission and other entities for many decades. In 2015, however, the Joint Commission began to require hospital‐based nuclear medicine departments to conduct shielding designs and evaluations for radioactive material areas ...
Michael Oumano, Richard Wendt, James Botti, Nathan Busse, David Hintenlang, Stephanie Leon, Kevin Little, Melissa Martin, Richard Massoth, Kenneth Matthews, Rameshwar Prasad, Sharon White, Jessica Clements   +12 more
wiley   +1 more source

Prevalence of Incidental Finding on Routine Preoperative Chest X ray and Its Consequences

Basrah Journal of Surgery
Background: Chest X-rays are routinely requested for almost all preoperative patients in our local hospitals, regardless of their medical history, clinical examination, or clear indications. This practice is often justified by the belief that it can help
Marwa Majid Aladhab, Ghassak Ahmed Abd Al-Ameer, Fatima Falah Abdulla;, Abdullah Mohammed Waheeb, Zahraa Kareem Salim   +4 more
doaj  

Surface dose analysis and dosimetric comparison of Halcyon versus Truebeam in breast cancer radiotherapy: An OSL dosimetry study

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Purpose Breast cancer is a neoplastic disease with high prevalence among women. Radiotherapy is one of the principal treatment modalities for this disease, but it poses significant challenges. This study aimed to compare and evaluate the technical and dosimetric performance of conventional C‐arm linac systems and a new design, Halcyon, in the ...
Mustafa Çağlar, Kudret Akçay, Esra Serin, Dursun Eşitmez, Mehmet Sıddık Cebe, Navid Kheradmand, Ömer Yazıcı, Dilek Ünal, Evrim Metcalfe   +8 more
wiley   +1 more source

Radium, X-Rays, and the Living Cell

, 1916

openalex   +2 more sources

A New Method of Using X-Rays in Crystal Analysis [PDF]

, 1922
George L. Clark, William Duane
openalex   +1 more source