PMID- 26440660
OWN - NLM
STAT- MEDLINE
DCOM- 20160913
LR  - 20191210
IS  - 1875-8312 (Electronic)
IS  - 1569-5794 (Linking)
VI  - 31 Suppl 2
DP  - 2015 Dec
TI  - Validity of the size-specific dose estimate in adults undergoing coronary CT 
      angiography: comparison with the volume CT dose index.
PG  - 205-11
LID - 10.1007/s10554-015-0782-z [doi]
AB  - Size-specific dose estimate (SSDE) takes into account the patient size but 
      remains to be fully validated for adult coronary computed tomography angiography 
      (CCTA). We investigated the appropriateness of SSDE for accurate estimation of 
      patient dose by comparing the SSDE and the volume CT dose index (CTDIvol) in 
      adult CCTA. This prospective study received institutional review board approval, 
      and informed consent was obtained from each patient. We enrolled 37 adults who 
      underwent CCTA with a 320-row CT. High-sensitivity metal oxide semiconductor 
      field effect transistor dosimeters were placed on the anterior chest. CTDIvol 
      reported by the scanner based on a 32-cm phantom was recorded. We measured chest 
      diameter to convert CTDIvol to SSDE. Using linear regression, we then correlated 
      SSDE with the mean measured skin dose. We also performed linear regression 
      analyses between the skin dose/CTDIvol and the body mass index (BMI), and the 
      skin dose/SSDE and BMI. There was a strong linear correlation (r = 0.93, 
      P < 0.001) between SSDE (mean 37 +/- 22 mGy) and mean skin dose (mean 
      17.7 +/- 10 mGy). There was a moderate negative correlation between the skin 
      dose/CTDIvol and BMI (r = 0.45, P < 0.01). The skin dose/SSDE was not affected by 
      BMI (r = 0.06, P > 0.76). SSDE yields a more accurate estimation of the radiation 
      dose without estimation errors attributable to the body size of adult patients 
      undergoing CCTA.
FAU - Kidoh, Masafumi
AU  - Kidoh M
AD  - Department of Diagnostic Radiology, Faculty of Life Sciences, Kumamoto 
      University, 1-1-1, Honjo, Kumamoto, 860-8556, Japan. masafkidoh@yahoo.co.jp.
FAU - Utsunomiya, Daisuke
AU  - Utsunomiya D
AD  - Department of Diagnostic Radiology, Faculty of Life Sciences, Kumamoto 
      University, 1-1-1, Honjo, Kumamoto, 860-8556, Japan.
FAU - Oda, Seitaro
AU  - Oda S
AD  - Department of Diagnostic Radiology, Faculty of Life Sciences, Kumamoto 
      University, 1-1-1, Honjo, Kumamoto, 860-8556, Japan.
FAU - Funama, Yoshinori
AU  - Funama Y
AD  - Department of Medical Physics, Faculty of Life Sciences, Kumamoto University, 
      1-1-1, Honjo, Kumamoto, 860-8556, Japan.
FAU - Yuki, Hideaki
AU  - Yuki H
AD  - Department of Diagnostic Radiology, Faculty of Life Sciences, Kumamoto 
      University, 1-1-1, Honjo, Kumamoto, 860-8556, Japan.
FAU - Nakaura, Takeshi
AU  - Nakaura T
AD  - Department of Diagnostic Radiology, Faculty of Life Sciences, Kumamoto 
      University, 1-1-1, Honjo, Kumamoto, 860-8556, Japan.
FAU - Kai, Noriyuki
AU  - Kai N
AD  - Department of Diagnostic Radiology, Faculty of Life Sciences, Kumamoto 
      University, 1-1-1, Honjo, Kumamoto, 860-8556, Japan.
FAU - Nozaki, Takeshi
AU  - Nozaki T
AD  - Department of Diagnostic Radiology, Faculty of Life Sciences, Kumamoto 
      University, 1-1-1, Honjo, Kumamoto, 860-8556, Japan.
FAU - Yamashita, Yasuyuki
AU  - Yamashita Y
AD  - Department of Diagnostic Radiology, Faculty of Life Sciences, Kumamoto 
      University, 1-1-1, Honjo, Kumamoto, 860-8556, Japan.
LA  - eng
PT  - Comparative Study
PT  - Journal Article
PT  - Validation Study
DEP - 20151006
PL  - United States
TA  - Int J Cardiovasc Imaging
JT  - The international journal of cardiovascular imaging
JID - 100969716
SB  - IM
MH  - Adult
MH  - Aged
MH  - Aged, 80 and over
MH  - *Body Mass Index
MH  - Coronary Angiography/*methods
MH  - Humans
MH  - Linear Models
MH  - Middle Aged
MH  - Models, Biological
MH  - *Multidetector Computed Tomography
MH  - Predictive Value of Tests
MH  - Prospective Studies
MH  - *Radiation Dosage
MH  - *Radiation Exposure
MH  - Reproducibility of Results
MH  - Young Adult
OTO - NOTNLM
OT  - Adult
OT  - Heart
OT  - Multi-detector computed tomography
OT  - Radiation doses
EDAT- 2015/10/07 06:00
MHDA- 2016/09/14 06:00
CRDT- 2015/10/07 06:00
PHST- 2015/09/21 00:00 [received]
PHST- 2015/09/30 00:00 [accepted]
PHST- 2015/10/07 06:00 [entrez]
PHST- 2015/10/07 06:00 [pubmed]
PHST- 2016/09/14 06:00 [medline]
AID - 10.1007/s10554-015-0782-z [pii]
AID - 10.1007/s10554-015-0782-z [doi]
PST - ppublish
SO  - Int J Cardiovasc Imaging. 2015 Dec;31 Suppl 2:205-11. doi: 
      10.1007/s10554-015-0782-z. Epub 2015 Oct 6.