Results 31 to 40 of about 15,618,877 (244)

Correlation between Body Mass Index and Radiation Dose Metrics in Adult Thorax and Abdomen Computed Tomography Examination: A Cross-sectional Study [PDF]

Journal of Clinical and Diagnostic Research
Introduction: Computed Tomography (CT) procedures contribute significantly to medical radiation exposure and therefore necessitate the implementation of optimisation measures that balance diagnostic image quality with patient safety. Body Mass Index (BMI)
Pritee Prachee Pradhan, Maajid Mohi Ud Din Malik   +1 more
doaj   +1 more source

Size- and Dose-Dependent Body-Wide Organ Transcriptomic Responses to Calcium Phosphate Nanomaterials

, 2023
Nanomaterials are widely used in clinical practice. There are potential risks of body-wide infiltration due to their small size; however, the body-wide reliable risk assessment of nanoparticle infiltration is not fully studied and established.
Junwen Zhang (833829), Xiaoyi Chen (150873), Shasha Yao (146515), Yu Li (183836), Jiahuan Guan (17474570), Hongwei Ouyang (807801), Cheng Zhang (70708), Xiaohui Zou (319415), Jiaqi Xu (1401178), Nanfang Nie (17474567), Ying Gu (203149), Zi Yin (4383151), Chengcheng Zhu (780772), Wei Jiang (14986), Xiaozhao Wang (1334502), Bingbing Wu (3608228)   +15 more
core   +1 more source

Patient Size–Specific Analysis of Dose Indexes From CT Lung Cancer Screening [PDF]

, 2016
OBJECTIVE. The U.S. Centers for Medicare & Medicaid Services (CMS) recently approved the use of low-dose CT for lung cancer screening and described volumetric CT dose index (CTDI(vol)) requirements.
Bostani, Maryam, Fujii, Keisuke, McMillan, Kyle, Cagnon, Christopher, McNitt-Gray, Michael   +4 more
core   +1 more source

Size‐specific, scanner‐independent organ dose estimates in contiguous axial and helical head CT examinations

, 2014
PurposeAAPM Task Group 204 introduced size-specific dose estimates for pediatric and adult patients undergoing body CT examinations. This investigation extends that work to head CT exams by using Monte Carlo simulations to develop size-specific, scanner ...
Zankl, Maria, Maria Zankl, Bostani, Maryam, Sepahdari, Ali R, Kyle McMillan, Cagnon, Chris, Ali R. Sepahdari, McMillan, Kyle, Chris Cagnon, Michael McNitt‐Gray, Maryam Bostani, McNitt-Gray, Michael   +11 more
core   +2 more sources

Comparative Drug Response Profiling in Neuroblastoma Cell Lines and Patient‐Derived Tumor Organoids

Pediatric Blood &Cancer, EarlyView.
ABSTRACT High‐risk neuroblastoma remains a leading cause of pediatric cancer mortality, and improved preclinical models are needed to guide therapeutic developments. We screened seven high‐risk neuroblastoma cell lines and three patient‐derived tumor organoids with 528 compounds alongside bone marrow controls, and compared them with external datasets ...
Krzysztof Wierbiłowicz, Se Whee Sammy Park, Aironas Los, Ernest Liu, Nona Struyf, Tom Erkers, Sören Lehmann, Jan J. Molenaar, Jakob Stenman, Olli Kallioniemi, Päivi Östling, Brinton Seashore‐Ludlow, Kasper Karlsson   +12 more
wiley   +1 more source

The role of Size-Specific Dose Estimate (SSDE) in patient-specific organ dose and cancer risk estimation in paediatric chest and abdominopelvic CT examinations

, 2016
To develop a clinically applicable method to estimate patient-specific organ and blood doses and lifetime attributable risks (LAR) from paediatric torso CT examinations.
Verstraete, Koenraad, Achten, Eric, Goethals, Ingeborg, Vandevoorde, Charlot, Thierens, Hubert, Franck, Caro, Bacher, Klaus, Smeets, Peter   +7 more
core   +1 more source

Tube Current Modulated Computed Tomography Effective Dose and Size Specific Organ Dose Estimates with ImPACT: Total Scan versus Slice by Slice Parameters for Urogram Protocols [PDF]

, 2014
Purpose: One of the predominant computed tomography (CT) dosimetry estimation programs, ImPACT, was not designed to estimate organ absorbed dose or effective dose for modern tube current modulated-CT (TCM-CT). ImPACT also only estimates organ doses for a
Byrd, David Wayne, null null, David Byrd
core   +1 more source

Relationship Between Effective Dose, Alternative Metrics, and SSDE: Experiences with Two CT Dose-Monitoring Systems

Diagnostics
Background: We assessed the frequency and causes of discrepancies in CT dose indices such as dose-length product (DLP), size-specific dose estimate (SSDE), and effective dose (ED), as calculated by CT dose-monitoring systems.
Lilla Szatmáriné Egeresi, László Urbán, Zsolt Dankó, Ervin Balázs, Ervin Berényi, Mária Marosi, János Kiss, Péter Bágyi, Zita Képes, Miklós Emri, László Balkay   +10 more
doaj   +1 more source

Impact of Radiation Therapy on Physical and Psychosocial Health of Adolescents and Young Adults: A Joint Report From the Children's Oncology Group AYA and Radiation Oncology Committees

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Rates of cancer among adolescents and young adults (AYA), age 15–39 years, are increasing. Consequently, radiation oncologists are treating more AYAs who have diagnoses spanning both pediatric and adult practices. Compared to pediatric and older adult patients, AYAs face a unique set of challenges.
Hesham Elhalawani, Rachel K. Peterson, Avani D. Rao, Laurie J. McKenzie, Ahmed Magdy Elmotayam, Leslie Chang, Michael Roth, Susan L. McGovern   +7 more
wiley   +1 more source

Development Of An Automatic Calculation Method For Ct Dose Estimation Based On Individual Specific Size In Paediatric Population [PDF]

, 2022
The current dose estimation based on CTDIvol in paediatric CT leads to significant inaccuracies in dose estimation due to inadequate size consideration.
Abdulkadir, Muhammad Kabir
core   +1 more source