Results 81 to 90 of about 1,238 (180)

AAPM MEDICAL PHYSICS PRACTICE GUIDELINE 10.b: Scope of practice for clinical medical physics

Journal of Applied Clinical Medical Physics, Volume 26, Issue 11, November 2025.
Abstract The American Association of Physicists in Medicine (AAPM) is a nonprofit professional society whose mission is “Advancing medicine through excellence in the science, education and professional practice of medical physics.” The AAPM has roughly 10,000 members and is the principal organization of medical physicists in the United States. The AAPM
Seng Boh Lim, Nathan Busse, Jessica Clements, Steve Howard, Megan A. Hyun, Daniel G. McDonald, Daniel C. Pavord, Jussi K. Sillanpaa, Russell B. Tarver   +8 more
wiley   +1 more source

Influence of reference baselines on size-specific dose estimate (SSDE) in head CT examinations

Journal of Radiological Protection
Abstract This study aimed to evaluate the influence of three reference baselines—specifically, supraorbitometal baseline (SOML), orbitometal baseline (OMBL), and Reid’s baseline (RBL) on size-specific dose estimate (SSDE) in head computed tomography (CT), addressing limitations of conventional dose metrics that neglect baseline-dependent
Huanna Meng, Qingting Sun, Yihan Fan, Yuhao Zhao, Jing Wang, Lingling Wang, Baohui Liang   +6 more
openaire   +2 more sources

The Impact of CARE kV Technology on Radiation Dose in Coronary Computed Tomography Angiography

CT Lilun yu yingyong yanjiu
Objective: To investigate the impact of CARE kV technology on radiation dose in coronary computed tomography angiography (CCTA). Methods: This retrospective study analyzed data from 1,529 patients who underwent CCTA at The First Affiliated Hospital of ...
Xinnan SHEN, Zhuohang ZHOU, Yiting WANG, Meiqi WANG, Yajing YANG, Zhiwei ZHANG   +5 more
doaj   +1 more source

Evaluation of the corneal epithelium in non-Sjögren’s and Sjögren’s dry eyes: an in vivo confocal microscopy study using HRT III RCM

BMC Ophthalmology, 2018
Background The corneal epithelium is directly affected in dry eye syndrome. Thus, we attempted to describe the morphological features and evaluate the cellular density within the corneal epithelial layers in patients with non-Sjögren’s (NSDE) and Sjögren’
Olivia L. Lee, Tudor C. Tepelus, Jianyan Huang, Anne G. Irvine, Christopher Irvine, Gloria B. Chiu, SriniVas R. Sadda   +6 more
doaj   +1 more source

Fast estimation of patient‐specific organ doses from abdomen and head CT examinations without segmenting internal organs using machine learning models

Precision Radiation Oncology, Volume 9, Issue 2, Page 77-86, June 2025.
A new method using support vector regression (SVR) models predicts organ doses from CT scans based on skin radiomics, eliminating the need for organ segmentation. High accuracy was achieved for brain, eyes, lens, bowel, kidneys, and liver doses, improving clinical efficiency and accessibility in dose prediction. Abstract Background Computed Tomography (
Wencheng Shao, Liangyong Qu, Xin Lin, Ying Huang, Weihai Zhuo, Haikuan Liu   +5 more
wiley   +1 more source

Image_2_Analysis of Conjunctival Sac Microbiome in Dry Eye Patients With and Without Sjögren's Syndrome.JPEG

, 2022
PurposeTo analyze the conjunctival sac microbial communities in patients with Sjögren's syndrome-associated dry eyes (SSDE) and non-Sjögren's syndrome-associated dry eyes (NSSDE), compared with normal controls (NC).MethodsConjunctival sac swab samples ...
Zhengyu Chen (3920723), Kang Xiao (207708), Qin Long (7436279), Hang Song (1621393)   +3 more
core   +1 more source

MATLAB-based software for Size-Specific Dose Estimation (SSDE) in Computed Tomography Examinations

Archives of Advances in Biosciences, 2016
Primary and widely in use Computed Tomography (CT) dose descriptor is a volumetric CT Dose Index (CTDIv) that is usually measured by a pencil ionization chamber with active length of 100mm and polymethyl methacrylate (PMMA) phantom. CTDIv depends on scan parameters such as mAs, kV, collimation, tube rotation time but is independent of patient’s size ...
Khoramian, Daryoush, Sistani, Soroush
openaire   +1 more source

Image_1_Analysis of Conjunctival Sac Microbiome in Dry Eye Patients With and Without Sjögren's Syndrome.JPEG

, 2022
PurposeTo analyze the conjunctival sac microbial communities in patients with Sjögren's syndrome-associated dry eyes (SSDE) and non-Sjögren's syndrome-associated dry eyes (NSSDE), compared with normal controls (NC).MethodsConjunctival sac swab samples ...
Zhengyu Chen (3920723), Kang Xiao (207708), Qin Long (7436279), Hang Song (1621393)   +3 more
core   +1 more source

A fully automated calculation of size-specific dose estimates (SSDE) in thoracic and head CT examinations

Journal of Physics: Conference Series, 2016
The purpose of this study is to automatically calculate and then investigate the size- specific dose estimate (SSDE) in thoracic and head CT examinations undertaken using standard imaging protocols. The effective diameter (Deff ), the water equivalent diameter (Dw ), and the SSDE were calculated automatically from patient images.
C Anam, F Haryanto, R Widita, I Arif, G Dougherty   +4 more
openaire   +1 more source

Fast kilovoltage-switching dual-energy CT offering lower x-ray dose than single-energy CT for the chest: a quantitative and qualitative comparison study of the two methods of acquisition

Diagnostic and Interventional Radiology, 2019
PURPOSEWe aimed to compare the size-specific dose estimates (SSDE), computed tomography (CT) dose indices and image quality parameters of the chest CTs obtained with fast kilovoltage-switching (FKS) dual-energy (DE) CT versus those with single-energy (SE)
Osman Melih Topçuoğlu, Başar Sarıkaya   +1 more
doaj   +1 more source