PMID- 31468370
OWN - NLM
STAT- MEDLINE
DCOM- 20200413
LR  - 20200413
IS  - 1865-0341 (Electronic)
IS  - 1865-0333 (Linking)
VI  - 12
IP  - 4
DP  - 2019 Dec
TI  - A comparative study of radiation doses between phantom and patients via CT 
      angiography of the intra-/extra-cranial, pulmonary, and abdominal/pelvic 
      arteries.
PG  - 374-381
LID - 10.1007/s12194-019-00532-8 [doi]
AB  - This study aimed to evaluate effective dose and size-specific dose estimate 
      (SSDE) of computed tomography angiography (CTA) examination using an 
      anthropomorphic phantom. We included three CTA examination protocols to evaluate 
      the intra- and extra-cranial arteries, pulmonary artery (CTPA), and abdominal 
      vessels. Patient SSDEs were measured retrospectively to estimate patient dose, 
      relative to the bodyweight of the patient and volume CT dose index (CTDI(vol)). 
      Our findings revealed that the highest dose was absorbed by the left lobe of the 
      thyroid gland during intra-/extra-cranial CTA and CTPA, that is, 14.11 +/- 0.24 mGy 
      and 16.20 +/- 3.95 mGy, respectively. However, the highest absorbed dose in 
      abdominal/pelvic CTA was the gonads (8.98 +/- 0.30 mGy), while other radiosensitive 
      organs in intra- and extra-cranial CTA, CTPA, and abdominal/pelvic CTA did not 
      demonstrate significant differences between organs/structures with p value 0.88, 
      0.11, and 0.54, respectively. The estimated effective dose in 
      intra-/extra-cranial CTA was lower in patients (0.80 +/- 0.60 mSv) than in the 
      phantom (0.83 mSv), but it was the opposite for CTPA, with the effective dose 
      being higher in patients (7.54 +/- 3.09 mSv) than in the phantom (6.68 mSv). 
      Similar to the effective dose, only CTPA SSDEs were significantly higher in men 
      than in women (19.74 +/- 4.79 mGy versus 7.9 mGy). Effective dose and SSDE are 
      clinically relevant parameters that can help estimate a more accurate patient 
      dose based on a patient's size.
FAU - Karim, M K A
AU  - Karim MKA
AUID- ORCID: 0000-0002-5357-4193
AD  - Department of Physics, Faculty of Science, Universiti Putra Malaysia, 43400, 
      Serdang, Selangor, Malaysia. khalis.karim@gmail.com.
FAU - Sabarudin, A
AU  - Sabarudin A
AD  - Programme of Diagnostic Imaging and Radiotherapy, Faculty of Health Sciences, 
      Universiti Kebangsaan Malaysia, 56000, Kuala Lumpur, Malaysia.
FAU - Muhammad, N A
AU  - Muhammad NA
AD  - Department of Physics, Faculty of Science, Universiti Putra Malaysia, 43400, 
      Serdang, Selangor, Malaysia.
FAU - Ng, K H
AU  - Ng KH
AD  - Department of Biomedical Imaging, Faculty of Medicine, University of Malaya, 
      50603, Kuala Lumpur, Malaysia.
LA  - eng
GR  - GP/IPM/9619800/Fakulti Sains, Universiti Putra Malaysia (MY)/
PT  - Comparative Study
PT  - Journal Article
DEP - 20190829
PL  - Japan
TA  - Radiol Phys Technol
JT  - Radiological physics and technology
JID - 101467995
SB  - IM
MH  - Abdomen/blood supply
MH  - Adult
MH  - Arteries/*diagnostic imaging
MH  - Computed Tomography Angiography/*instrumentation
MH  - Female
MH  - Humans
MH  - Lung/blood supply
MH  - Male
MH  - Pelvis/blood supply
MH  - *Phantoms, Imaging
MH  - *Radiation Dosage
MH  - Retrospective Studies
MH  - Skull/blood supply
OTO - NOTNLM
OT  - Absorbed dose
OT  - CT angiography
OT  - Dose-length product
OT  - Effective dose
OT  - Size-specific dose estimate
EDAT- 2019/08/31 06:00
MHDA- 2020/04/14 06:00
CRDT- 2019/08/31 06:00
PHST- 2019/02/18 00:00 [received]
PHST- 2019/08/10 00:00 [accepted]
PHST- 2019/08/09 00:00 [revised]
PHST- 2019/08/31 06:00 [pubmed]
PHST- 2020/04/14 06:00 [medline]
PHST- 2019/08/31 06:00 [entrez]
AID - 10.1007/s12194-019-00532-8 [pii]
AID - 10.1007/s12194-019-00532-8 [doi]
PST - ppublish
SO  - Radiol Phys Technol. 2019 Dec;12(4):374-381. doi: 10.1007/s12194-019-00532-8. 
      Epub 2019 Aug 29.