Results 41 to 50 of about 5,341 (200)

Validation of a Locally Designed Computed Tomography Dose Phantom: A Comparison Study with a Standard Acrylic Phantom in South-South, Nigeria

Journal of Global Radiology, 2021
Purpose: The aim of this study was to determine the mean volume computed tomography dose index (CTDIvol) for the standard head and body phantoms and locally designed head and body phantoms respectively.
Anwuli Christiana Tobi, Chukwuka Emmanuel Mokobia, Joyce Ekeme Ikubor, Akintayo Daniel Omojola   +3 more
doaj   +1 more source

Relationship between Water-equivalent Diameter, Computed Tomography Dose Indices, and Image Noise in Pediatric Head Computed Tomography Under Active and Inactive Tube Current Modulation. [PDF]

J Med Phys
Purpose: This study investigated the relationships among water-equivalent diameter (Dw), volume computed tomography dose index (CTDIvol), size-specific dose estimate (SSDE), and image noise in pediatric head computed tomography (CT) under active and ...
Setiawati E, Anam C, Safitri BD, Azam M, Soesanto QMB, Margiantono A.   +5 more
europepmc   +2 more sources

EVALUASI NILAI CTDIVOL DAN DLP PADA PEMERIKSAAN MSCT THORAX DEWASA SELAMA PERIODE FEBRUARI 2022 SAMPAI DENGAN JULI 2022 DI RS TK.II PELAMONIA MAKASSAR [PDF]

, 2023
Computed Tomography (CT) Scan adalah sebuh alat pencitraan sinar-x yang dipandukan dengan komputer pengolahan data sehingga mampu menghasilkan gambaran potongan melintang dari tubuh.
Efendi, Isnaini Riza, Aris Diartama, Anak Agung   +1 more
core   +1 more source

CT dose management for neurologic events in patients with cardiac devices: Radiation exposure variation in patients with cardiac devices

Diagnostic and Interventional Radiology, 2022
PURPOSE:To compare the inter-center cranial computed tomography (CT) acquisition rates, CT findings, CT related radiation dose, and variability of CT acquisition parameters for neurologic events among patients with implantable cardioverter-defibrillator (
Gokcen Coban, Safak Parlak, Mehmet Ruhi Onur, Egemen Cifci, Cenk Erarslan, Ugur Canpolat, Ergun Barıs Kaya, Kudret Aytemir, Kader K. Oguz   +8 more
doaj   +1 more source

The schematic diagram of CTDIvol variations according to the mA value.

, 2014
CTDIvol decreases as the mA value decreases.
Minghua Sun (541893), Peigang Ning (541890), Dapeng Shi (541892), Shaocheng Zhu (541891), Ying Guo (53523)   +4 more
core   +1 more source

Can we obtain low-dose and high quality images using 320-row multidedector computed tomography in paranasal sinus imaging?

Van Tıp Dergisi, 2018
INTRODUCTION: To evaluate whether or not obtaining low-dose and high quality images in the paranasal sinus CT imaging using 320-row multidetector CT technique on phantom study.
Berhan Pirimoğlu, Recep Sade
doaj   +1 more source

Towards establishment of diagnostic reference levels based on clinical indication in the state of Qatar

European Journal of Radiology Open, 2020
Objectives: The objectives of this study were to: 1) evaluate patient radiation exposure in CT and 2) establish CT Diagnostic Reference Levels (DRL)s based on clinical indication (CI) in Qatar.
Huda AlNaemi, Virginia Tsapaki, Ahmed J. Omar, Maryam AlKuwari, Amal AlObadli, Shady Alkhazzam, Antar Aly, Mohammad Hassan Kharita   +7 more
doaj   +1 more source

Mapping the Landscape of Over‐Scanning in CT Imaging: A Scoping Review

Journal of Medical Radiation Sciences, EarlyView.
Over‐scanning in CT is highly prevalent and contributes to unnecessary radiation exposure, with notable impact on radiosensitive organs. Standardised protocols and AI‐assisted planning show strong potential to optimise scan range and reduce excess dose.
Mo'men Bani‐Ahmad, Aoife O Sullivan, Yasser H. Hadi, Laura McLaughlin, Andrew England, Mark McEntee   +5 more
wiley   +1 more source

Patient Centring in CT: An International Survey of Clinical Practice and Future Directions

Journal of Medical Radiation Sciences, EarlyView.
An international survey of 321 radiographers from 43 countries found vertical mis‐centring below the CT isocentre is the most frequent positioning error. Only 34% had access to automated centring systems and 17% used them consistently. Substantial knowledge gaps exist regarding radiation dose and CT number variability, highlighting the need for ...
Yasser H. Hadi, Mo'men Bani‐Ahmad, Niamh Moore, Kevin R. Clark, Yazan Al‐Hayek, Salman M. Albeshan, Sultan B. Alghamdi, Helle Precht, Andrew England, Mark McEntee   +9 more
wiley   +1 more source

A system to investigate and adjust profile pattern of computed tomography dose index along the longitudinal-axis [PDF]

, 2023
The purpose of this study to develop software to extract and investigate the rofiles of the tube current and volume computed tomography dose index (CTDIvol) along the longitudinal axis (z-axis).
Amilia, Riska, Choirul Anam, Yanurita Dwihapsari, Dwihapsari, Yanurita, Dougherty, Geoff, Riska Amilia, Ariij Naufal, Geoff Dougherty, Anam, Choirul, Naufal, Ariij   +9 more
core   +1 more source