Development of indigenous cost effective pediatric head and body computed tomography dose index (CTDI) phantom for pediatric CT dose measurement

2014 ◽  
Vol 30 ◽  
pp. e51
Author(s):  
A. Saravanakumar ◽  
K. Vaideki ◽  
K.N. Govindarajan ◽  
S. Jayakumar
Keyword(s):  
Computed Tomography ◽  
Cost Effective ◽  
Dose Measurement ◽  
Pediatric Ct ◽  
Ct Dose ◽  
Computed Tomography Dose Index ◽  
Dose Index

TOWARD NATIONAL CT DIAGNOSTIC REFERENCE LEVELS IN THE UNITED ARAB EMIRATES: A MULTICENTER REVIEW OF CT DOSE INDEX AND DOSE LENGTH PRODUCT

2020 ◽  
Vol 190 (3) ◽  
pp. 243-249
Author(s):  
Mohamed M Abuzaid ◽  
Wiam Elshami ◽  
A El Serafi ◽  
T Hussien ◽  
J R McConnell ◽  
...  
Keyword(s):  
Computed Tomography ◽  
United Arab Emirates ◽  
Patient Characteristics ◽  
Diagnostic Reference Levels ◽  
Reference Levels ◽  
Dose Length Product ◽  
Ct Dose ◽  
Ct Head ◽  
Computed Tomography Dose Index ◽  
Dose Index

Abstract This multicenter study evaluated computed tomography dose index volume (CTDIvol) and dose length product (DLP) to contribute to establishing computed tomography (CT) national diagnostic reference levels (NDRLs) in the United Arab Emirates (UAE). Data from 240 patients, who underwent CT head, chest, abdomen–pelvis and urography examinations, were analyzed, including patient age, sex and weight, CTDIvol (mGy) and DLP (mGy cm). The proposed DRLs for each examination were calculated as the third quartile. DRLs are proposed using CTDIvol (mGy) and DLP (mGy cm) for CT head (67 and 1189, respectively), chest (8 and 302, respectively), abdomen–pelvis (28 and 1122, respectively) and urography (20 and 714, respectively). These values are comparable with the initial NDRLs and published international DRLs. Baseline values for International Radiology Center (IRC) CT DRLs were calculated on frequently performed CT examinations. Implementation of DRL values improves dose optimization based on procedures, scanner type and patient characteristics while maintaining acceptable image quality and diagnostic confidence.

VOLUME CT DOSE INDEX AND DOSE-LENGTH PRODUCT VALUES ACCORDING TO FACILITY SIZE IN JAPAN

2020 ◽  
Vol 188 (2) ◽  
pp. 261-269
Author(s):  
Yuta Matsunaga ◽  
Yuya Kondo ◽  
Kenichi Kobayashi ◽  
Masanao Kobayashi ◽  
Kazuyuki Minami ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Contrast Agent ◽  
Ct Scanner ◽  
Dose Length Product ◽  
Ct Dose ◽  
Volume Computed Tomography ◽  
Ct Dose Index ◽  
Computed Tomography Dose Index ◽  
Facility Size ◽  
Dose Index

Abstract The aim of this study was to investigate differences in volume computed tomography dose index (CTDIvol) and dose-length product (DLP) values according to facility size in Japan. A questionnaire survey was sent to 3000 facilities throughout Japan. Data from each facility were collected including bed number, computed tomography (CT) scan parameters employed and the CTDIvol and/or DLP values displayed on the CT scanner during each examination. The CTDIvol and DLP for 11 adult and 6 paediatric CT examinations were surveyed. Comparison of CTDIvol and DLP values of each examination according to facility size revealed key differences in CT dose between small and large facilities. This study highlights the importance of lowering the dose of coronary artery examination with contrast agent in smaller facilities and of lowering the dose of adult and paediatric head CT without contrast agent in larger facilities. The results of this study are valid in Japan.

scholarly journals Assessment of computed tomography dose index (CTDI) using the platform GEANT4/GATE

2019 ◽  
Vol 12 ◽  
pp. 100405
Author(s):  
M. Mkimel ◽  
M.R. Mesradi ◽  
R. El Baydaoui ◽  
Y. Toufique ◽  
Z. Aitelcadi ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Computed Tomography Dose Index ◽  
Dose Index

An evaluation of computed tomography dose index measurements using a pencil ionisation chamber and small detectors

2019 ◽  
Vol 39 (1) ◽  
pp. 112-124 ◽  
Author(s):  
Choirul Anam ◽  
Toshioh Fujibuchi ◽  
Freddy Haryanto ◽  
Rena Widita ◽  
Idam Arif ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Ionisation Chamber ◽  
Computed Tomography Dose Index ◽  
Dose Index

scholarly journals 257 A New Procedure and Concept of Helical Computed Tomography Dose Index (HTDI) in Dosimetry of Helical CT

1995 ◽  
Vol 51 (10) ◽  
pp. 1328
Author(s):  
Yoshihisa Muramatsu ◽  
Noriko Akiyama ◽  
Kouzou Hanai ◽  
Yasuyuki Fujita ◽  
Syuichi Katsuta
Keyword(s):  
Computed Tomography ◽  
Helical Ct ◽  
Helical Computed Tomography ◽  
Computed Tomography Dose Index ◽  
Dose Index

scholarly journals Comparison of Planer Dose Equilibrium and Computed Tomography Dose Index and Implications for Reported Patient Dose Information

2019 ◽  
Vol 09 (04) ◽  
pp. 43-51
Author(s):  
Ahmad Albngali ◽  
Joshua Deslongchamps ◽  
James Blackwell ◽  
Andy Shearer ◽  
Brendan Tuohy ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Patient Dose ◽  
Dose Information ◽  
Computed Tomography Dose Index ◽  
Dose Index

scholarly journals [OA162] Impact of scanner type and acquisition parameters on the accuracy of displayed computed tomography dose index

2018 ◽  
Vol 52 ◽  
pp. 62
Author(s):  
Luca Leandro Vigna ◽  
Barbara Cannillo ◽  
Roberta Matheoud ◽  
Antonella Ostan ◽  
Clizia Dionisi ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Computed Tomography Dose Index ◽  
Dose Index

Monte Carlo Simulation of the Computed Tomography Dose Index (CTDI) Using GATE

2020 ◽  
Vol 17 (6) ◽  
pp. 900-907
Author(s):  
M. Mkimel ◽  
R. El Baydaoui ◽  
M. R. Mesradi ◽  
Z. Tahiri ◽  
K. Talasmat ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Monte Carlo Simulation ◽  
Monte Carlo ◽  
Computed Tomography Dose Index ◽  
Dose Index
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