PMID- 30483977
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20191120
IS  - 2509-9280 (Electronic)
IS  - 2509-9280 (Linking)
VI  - 2
IP  - 1
DP  - 2018 Nov 28
TI  - Using body mass index to estimate individualised patient radiation dose in 
      abdominal computed tomography.
PG  - 38
LID - 10.1186/s41747-018-0070-5 [doi]
LID - 38
AB  - BACKGROUND: The size-specific dose estimate (SSDE) is a dose-related metrics that 
      incorporates patient size into its calculation. It is usually derived from the 
      volume computed tomography dose index (CTDI(vol)) by applying a conversion factor 
      determined from manually measured anteroposterior and lateral skin-to-skin 
      patient diameters at the midslice level on computed tomography (CT) localiser 
      images, an awkward, time-consuming, and not highly reproducible technique. The 
      objective of this study was to evaluate the potential for the use of body mass 
      index (BMI) as a size-related metrics alternative to the midslice effective 
      diameter (D(E)) to obtain a size-specific dose (SSDE) in abdominal CT. METHODS: 
      In this retrospective study of patients who underwent abdominal CT for the 
      investigation of inflammatory bowel disease, the D(E) was measured on the 
      midslice level on CT-localiser images of each patient. This was correlated with 
      patient BMI and the linear regression equation relating the quantities was 
      calculated. The ratio between the internal and the external abdominal diameters 
      (D(RATIO)) was also measured to assess correlation with radiation dose. Pearson 
      correlation analysis and linear regression models were used. RESULTS: There was 
      good correlation between D(E) and patient BMI (r = 0.88). An equation allowing 
      calculation of D(E) from BMI was calculated by linear regression analysis as 
      follows: D(E) = 0.76 (BMI) + 9.4. A weak correlation between radiation dose and 
      D(RATIO) was demonstrated (r = 0.45). CONCLUSIONS: Patient BMI can be used to 
      accurately estimate D(E), obviating the need to measure anteroposterior and 
      lateral diameters in order to calculate a SSDE for abdominal CT.
FAU - O'Neill, Siobhan
AU  - O'Neill S
AD  - Department of Radiology, Cork University Hospital, Wilton, Cork, Ireland.
AD  - Department of Radiology, University College Cork, Cork, Ireland.
FAU - Kavanagh, Richard G
AU  - Kavanagh RG
AUID- ORCID: 0000-0002-7483-0926
AD  - Department of Radiology, Cork University Hospital, Wilton, Cork, Ireland. 
      richykav@gmail.com.
AD  - Department of Radiology, University College Cork, Cork, Ireland. 
      richykav@gmail.com.
FAU - Carey, Brian W
AU  - Carey BW
AD  - Department of Radiology, University College Cork, Cork, Ireland.
FAU - Moore, Niamh
AU  - Moore N
AD  - Department of Radiology, Cork University Hospital, Wilton, Cork, Ireland.
FAU - Maher, Michael
AU  - Maher M
AD  - Department of Radiology, Cork University Hospital, Wilton, Cork, Ireland.
AD  - Department of Radiology, University College Cork, Cork, Ireland.
AD  - APC Microbiome Ireland, University College Cork, Cork, Ireland.
FAU - O'Connor, Owen J
AU  - O'Connor OJ
AD  - Department of Radiology, Cork University Hospital, Wilton, Cork, Ireland.
AD  - Department of Radiology, University College Cork, Cork, Ireland.
AD  - APC Microbiome Ireland, University College Cork, Cork, Ireland.
LA  - eng
PT  - Journal Article
DEP - 20181128
PL  - England
TA  - Eur Radiol Exp
JT  - European radiology experimental
JID - 101721752
PMC - PMC6258803
OTO - NOTNLM
OT  - Abdomen
OT  - Body mass index
OT  - Radiation dosage
OT  - Tomography (x-ray, computed)
COIS- ETHICS APPROVAL AND CONSENT TO PARTICIPATE: Approval for this study was granted 
      by the Clinical Research Ethics Committee of the Cork Teaching Hospitals, 
      Lancaster Hall, 6 Little Hanover Street, Cork, Ireland. Informed consent was 
      obtained from each patient. CONSENT FOR PUBLICATION: The consent for publication 
      is included in the informed consent. COMPETING INTERESTS: The authors declare 
      that they have no competing interests. PUBLISHER'S NOTE: Springer Nature remains 
      neutral with regard to jurisdictional claims in published maps and institutional 
      affiliations.
EDAT- 2018/11/30 06:00
MHDA- 2018/11/30 06:01
PMCR- 2018/11/28
CRDT- 2018/11/29 06:00
PHST- 2018/06/18 00:00 [received]
PHST- 2018/10/09 00:00 [accepted]
PHST- 2018/11/29 06:00 [entrez]
PHST- 2018/11/30 06:00 [pubmed]
PHST- 2018/11/30 06:01 [medline]
PHST- 2018/11/28 00:00 [pmc-release]
AID - 10.1186/s41747-018-0070-5 [pii]
AID - 70 [pii]
AID - 10.1186/s41747-018-0070-5 [doi]
PST - epublish
SO  - Eur Radiol Exp. 2018 Nov 28;2(1):38. doi: 10.1186/s41747-018-0070-5.