PMID- 27885082
OWN - NLM
STAT- MEDLINE
DCOM- 20180501
LR  - 20181202
IS  - 1742-3406 (Electronic)
IS  - 0144-8420 (Linking)
VI  - 175
IP  - 3
DP  - 2017 Jul 1
TI  - THE SIZE-SPECIFIC DOSE ESTIMATE (SSDE) FOR TRUNCATED COMPUTED TOMOGRAPHY IMAGES.
PG  - 313-320
LID - 10.1093/rpd/ncw326 [doi]
AB  - The purpose of this study is to investigate truncated axial computed tomography 
      (CT) images in the clinical environment and to produce correction factors for 
      abdomen, thoracic and head regions based on clinical data, in order to accurately 
      predict the water-equivalent diameter (DW) and size-specific dose estimate 
      (SSDE). We investigated axial images of 75 patients who underwent CT 
      examinations. Truncated axial images were characterized by the truncation 
      percentage (TP). Correction factors were calculated by using the value of DW for 
      a certain TP (truncated image) divided by the value of DW for TP = 0% (the 
      non-truncated image). Most of the thorax images acquired for this study were 
      truncated images (86.2%), in the abdomen region about half of the images were 
      truncated (48.1%), and in the head region only a small portion were truncated 
      (9.1%). In the thorax region the value of TP for the truncated images varied up 
      to 50%, in the abdomen region it varied up to 35%, and in the head region it was 
      smaller than 10%. We have shown how to accurately estimate DW and SSDE by 
      applying a correction factor to the truncated images. The correction factors 
      increase exponentially with increasing TP. The corrected DW and SSDE for the 
      truncated images were significant in the thoracic region, but were not 
      significant in the abdomen and head regions.
CI  - (c) The Author 2016. Published by Oxford University Press. All rights reserved. For 
      Permissions, please email: journals.permissions@oup.com.
FAU - Anam, Choirul
AU  - Anam C
AD  - Department of Physics, Faculty of Mathematics and Natural Sciences, Diponegoro 
      University, Jl. Prof. Soedarto SH, Semarang 50275, Central Java, Indonesia.
AD  - Department of Physics, Faculty of Mathematics and Natural Sciences, Bandung 
      Institute of Technology, Ganesha 10, Bandung 40132, West Java, Indonesia.
FAU - Haryanto, Freddy
AU  - Haryanto F
AD  - Department of Physics, Faculty of Mathematics and Natural Sciences, Bandung 
      Institute of Technology, Ganesha 10, Bandung 40132, West Java, Indonesia.
FAU - Widita, Rena
AU  - Widita R
AD  - Department of Physics, Faculty of Mathematics and Natural Sciences, Bandung 
      Institute of Technology, Ganesha 10, Bandung 40132, West Java, Indonesia.
FAU - Arif, Idam
AU  - Arif I
AD  - Department of Physics, Faculty of Mathematics and Natural Sciences, Bandung 
      Institute of Technology, Ganesha 10, Bandung 40132, West Java, Indonesia.
FAU - Dougherty, Geoff
AU  - Dougherty G
AD  - Applied Physics and Medical Imaging, California State University Channel Islands 
      (CSUCI), Camarillo, CA 93012 , USA.
LA  - eng
PT  - Journal Article
PL  - England
TA  - Radiat Prot Dosimetry
JT  - Radiation protection dosimetry
JID - 8109958
SB  - IM
MH  - Abdomen/diagnostic imaging
MH  - Head/diagnostic imaging
MH  - Humans
MH  - Radiation Dosage
MH  - Thorax/diagnostic imaging
MH  - *Tomography, X-Ray Computed
EDAT- 2016/11/26 06:00
MHDA- 2018/05/02 06:00
CRDT- 2016/11/26 06:00
PHST- 2016/09/04 00:00 [received]
PHST- 2016/10/22 00:00 [accepted]
PHST- 2016/11/26 06:00 [pubmed]
PHST- 2018/05/02 06:00 [medline]
PHST- 2016/11/26 06:00 [entrez]
AID - ncw326 [pii]
AID - 10.1093/rpd/ncw326 [doi]
PST - ppublish
SO  - Radiat Prot Dosimetry. 2017 Jul 1;175(3):313-320. doi: 10.1093/rpd/ncw326.