PMID- 38540213
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20240330
IS  - 2227-9059 (Print)
IS  - 2227-9059 (Electronic)
IS  - 2227-9059 (Linking)
VI  - 12
IP  - 3
DP  - 2024 Mar 7
TI  - Redefining Radiation Metrics: Evaluating Actual Doses in Computed Tomography 
      Scans.
LID - 10.3390/biomedicines12030600 [doi]
LID - 600
AB  - BACKGROUND: Computed tomography (CT) contributes significantly to the collective 
      dose from medical sources, raising concerns about potential health risks. 
      However, existing radiation dose estimation tools, such as volume computed 
      tomography dose index (CTDIvol), dose-length product (DLP), effective dose (ED), 
      and size-specific dose estimate (SSDE), have limitations in accurately reflecting 
      patient exposure. This study introduces a new parameter, size-specific 
      dose-length product (DLPss), aiming to enhance the precision of radiation dose 
      estimation in real-life scenarios. METHODS: A retrospective analysis of 134 chest 
      CT studies was conducted. Relationships between CTDIvol and anthropometric 
      parameters were examined, and SSDE was calculated based on effective diameter. 
      Additionally, the novel parameter, DLPss, was introduced, considering scan length 
      and cross-sectional dimensions. RESULTS: Analysis reveals variations in scan 
      length, effective diameter, and CTDIvol between genders. Strong correlations were 
      observed between CTDIvol and effective diameter, particularly in men. The average 
      CTDIvol for the entire group was 7.83 +/- 2.92 mGy, with statistically significant 
      differences between women (7.38 +/- 3.23 mGy) and men (8.30 +/- 2.49 mGy). SSDE 
      values showed significant gender differences, with men exhibiting higher values. 
      The average SSDE values for women and men were 9.15 +/- 2.5 mGy and 9.6 +/- 2.09 mGy, 
      respectively, with a statistically significant difference (p = 0.03). The newly 
      introduced DLPss values ranged around 343.90 +/- 81.66 mGy.cm for the entire group, 
      with statistically significant differences between women (323.53 +/- 78.69 mGy.cm) 
      and men (364.89 +/- 79.87 mGy.cm) (p < 0.05), providing a comprehensive assessment 
      of total radiation dose. CONCLUSION: The study highlights the need for accurate 
      radiation dose estimation, emphasizing the impact of CT examination parameters on 
      dose variability. The proposed DLPss parameter offers a promising approach to 
      enhancing precision in assessing radiation risk during CT scans. Further research 
      is warranted to explore additional parameters for a comprehensive understanding 
      of radiation exposure and to optimize imaging protocols for patient safety.
FAU - Sabiniewicz-Ziajka, Dominika
AU  - Sabiniewicz-Ziajka D
AD  - 2nd Department of Radiology, Medical University of Gdansk, 80-210 Gdansk, Poland.
FAU - Szarmach, Arkadiusz
AU  - Szarmach A
AD  - 2nd Department of Radiology, Medical University of Gdansk, 80-210 Gdansk, Poland.
FAU - Grzywinska, Malgorzata
AU  - Grzywinska M
AUID- ORCID: 0000-0001-6533-5774
AD  - Neuroinformatics and Artificial Intelligence Laboratory, Department of 
      Neurophysiology, Neuropsychology and Neuroinformatics, Medical University of 
      Gdansk, 80-210 Gdansk, Poland.
FAU - Gac, Pawel
AU  - Gac P
AUID- ORCID: 0000-0001-8366-0239
AD  - Centre for Diagnostic Imaging, 4th Military Hospital, Weigla 5, 50-981 Wroclaw, 
      Poland.
AD  - Department of Population Health, Division of Environmental Health and 
      Occupational Medicine, Wroclaw Medical University, Mikulicza-Radeckiego 7, 50-368 
      Wroclaw, Poland.
FAU - Piskunowicz, Maciej
AU  - Piskunowicz M
AD  - 1st Department of Radiology, Medical University of Gdansk, 80-210 Gdansk, Poland.
LA  - eng
PT  - Journal Article
DEP - 20240307
PL  - Switzerland
TA  - Biomedicines
JT  - Biomedicines
JID - 101691304
PMC - PMC10967789
OTO - NOTNLM
OT  - computed tomography
OT  - dose-length product
OT  - radiation dose
OT  - size-specific dose estimate
OT  - size-specific dose-length product
COIS- The authors declare no conflicts of interest.
EDAT- 2024/03/28 06:44
MHDA- 2024/03/28 06:45
PMCR- 2024/03/07
CRDT- 2024/03/28 01:06
PHST- 2024/01/17 00:00 [received]
PHST- 2024/02/18 00:00 [revised]
PHST- 2024/03/04 00:00 [accepted]
PHST- 2024/03/28 06:45 [medline]
PHST- 2024/03/28 06:44 [pubmed]
PHST- 2024/03/28 01:06 [entrez]
PHST- 2024/03/07 00:00 [pmc-release]
AID - biomedicines12030600 [pii]
AID - biomedicines-12-00600 [pii]
AID - 10.3390/biomedicines12030600 [doi]
PST - epublish
SO  - Biomedicines. 2024 Mar 7;12(3):600. doi: 10.3390/biomedicines12030600.