PMID- 29594401 OWN - NLM STAT- MEDLINE DCOM- 20181105 LR - 20220331 IS - 1432-1084 (Electronic) IS - 0938-7994 (Linking) VI - 28 IP - 9 DP - 2018 Sep TI - Radiation exposure during CT-guided biopsies: recent CT machines provide markedly lower doses. PG - 3929-3935 LID - 10.1007/s00330-018-5350-1 [doi] AB - OBJECTIVES: To examine radiation dose levels of CT-guided interventional procedures of chest, abdomen, spine and extremities on different CT-scanner generations at a large multicentre institute. MATERIALS AND METHODS: 1,219 CT-guided interventional biopsies of different organ regions ((A) abdomen (n=516), (B) chest (n=528), (C) spine (n=134) and (D) extremities (n=41)) on different CT-scanners ((I) SOMATOM-Definition-AS+, (II) Volume-Zoom, (III) Emotion6) were included from 2013-2016. Important CT-parameters and standard dose-descriptors were retrospectively examined. Additionally, effective dose and organ doses were calculated using Monte-Carlo simulation, following ICRP103. RESULTS: Overall, radiation doses for CT interventions are highly dependent on CT-scanner generation: the newer the CT scanner, the lower the radiation dose imparted to patients. Mean effective doses for each of four procedures on available scanners are: (A) (I) 9.3mSv versus (II) 13.9mSv (B) (I) 7.3mSv versus (III) 11.4mSv (C) (I) 6.3mSv versus (II) 7.4mSv (D) (I) 4.3mSv versus (II) 10.8mSv. Standard dose descriptors [standard deviation (SD); CT dose index(vol) (CTDI(vol)); dose-length product (DLP(body)); size-specific dose estimate (SSDE)] were also compared. CONCLUSION: Effective dose, organ doses and SSDE for various CT-guided interventional biopsies on different CT-scanner generations following recommendations of the ICRP103 are provided. New CT-scanner generations involve markedly lower radiation doses versus older devices. KEY POINTS: * Effective dose, organ dose and SSDE are provided for CT-guided interventional examinations. * These data allow identifying organs at risk of higher radiation dose. * Detailed knowledge of radiation dose may contribute to a better individual risk-stratification. * New CT-scanner generations involve markedly lower radiation doses compared to older devices. FAU - Guberina, Nika AU - Guberina N AD - Institute of Diagnostic and Interventional Radiology and Neuroradiology, University Hospital Essen, Hufelandstrasse 55, 45147, Essen, Germany. nika.guberina@uk-essen.de. FAU - Forsting, Michael AU - Forsting M AD - Institute of Diagnostic and Interventional Radiology and Neuroradiology, University Hospital Essen, Hufelandstrasse 55, 45147, Essen, Germany. FAU - Ringelstein, Adrian AU - Ringelstein A AD - Institute of Diagnostic and Interventional Radiology and Neuroradiology, University Hospital Essen, Hufelandstrasse 55, 45147, Essen, Germany. FAU - Suntharalingam, Saravanabavaan AU - Suntharalingam S AD - Institute of Diagnostic and Interventional Radiology and Neuroradiology, University Hospital Essen, Hufelandstrasse 55, 45147, Essen, Germany. FAU - Nassenstein, Kai AU - Nassenstein K AD - Institute of Diagnostic and Interventional Radiology and Neuroradiology, University Hospital Essen, Hufelandstrasse 55, 45147, Essen, Germany. FAU - Theysohn, Jens AU - Theysohn J AD - Institute of Diagnostic and Interventional Radiology and Neuroradiology, University Hospital Essen, Hufelandstrasse 55, 45147, Essen, Germany. FAU - Wetter, Axel AU - Wetter A AD - Institute of Diagnostic and Interventional Radiology and Neuroradiology, University Hospital Essen, Hufelandstrasse 55, 45147, Essen, Germany. LA - eng PT - Journal Article DEP - 20180328 PL - Germany TA - Eur Radiol JT - European radiology JID - 9114774 SB - IM MH - Abdomen/diagnostic imaging MH - Adolescent MH - Adult MH - Aged MH - Aged, 80 and over MH - Extremities/diagnostic imaging MH - Female MH - Humans MH - Image-Guided Biopsy/*methods MH - Male MH - Middle Aged MH - Monte Carlo Method MH - Multidetector Computed Tomography/*methods MH - Phantoms, Imaging MH - *Radiation Dosage MH - *Radiation Exposure MH - Retrospective Studies MH - Spine/diagnostic imaging MH - Thorax/diagnostic imaging MH - Young Adult OTO - NOTNLM OT - Image-guided biopsy OT - Ionizing radiation OT - Multidetector computed tomography OT - Radiation exposure OT - Radiation monitoring EDAT- 2018/03/30 06:00 MHDA- 2018/11/06 06:00 CRDT- 2018/03/30 06:00 PHST- 2017/12/13 00:00 [received] PHST- 2018/01/23 00:00 [accepted] PHST- 2018/01/11 00:00 [revised] PHST- 2018/03/30 06:00 [pubmed] PHST- 2018/11/06 06:00 [medline] PHST- 2018/03/30 06:00 [entrez] AID - 10.1007/s00330-018-5350-1 [pii] AID - 10.1007/s00330-018-5350-1 [doi] PST - ppublish SO - Eur Radiol. 2018 Sep;28(9):3929-3935. doi: 10.1007/s00330-018-5350-1. Epub 2018 Mar 28.