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Research paper (original)
Published online: 2021-12-13
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Radiation dose in CT-guided microwave liver tumor ablation

Grzegorz Rosiak1, Joanna Podgórska2, Katarzyna Pasicz3, Krzysztof Milczarek1, Dariusz Konecki1, Olgierd Rowinski1
DOI: 10.5603/NJO.a2021.0076
Affiliations
  1. II Radiology Department, Central University Hospital (UCK), Warsaw Medical University, Warsaw, Poland
  2. Radiology Department 1, Maria Sklodowska-Curie National Research Institute of Oncology, Warsaw, Poland
  3. Medical Physics Department, Maria Sklodowska-Curie National Research Institute of Oncology, Warsaw, Poland

open access

Ahead of print
Original article
Published online: 2021-12-13

Abstract

Introduction. Ablation is one of important methods of liver tumor treatments. However radiation is one of disadvantages of CT-guided procedures including ablation. The purpose of this study is to assess factors that have impact on radiation doses during CT-guided microwave liver tumor ablation.

Material and methods. Radiation doses of CT-guided liver tumor ablations in 127 patients were collected. Then they were compared in terms of number of lesions, lesion size and depth, use of additional localization needles and hydrodissection as well as tumor location.

Results. The median radiation doses of ablations of multiple tumors (2348 mGy*cm) were significantly higher (p = 0.03) than those of single tumors (1784 mGy*cm). No statistically significant differences were noted when other factors (lesion size, depth, location, use of localization needles and hydrodissection) were taken into consideration.

Conclusions. Number of lesions is the most important factor in terms of expected radiation doses in CT-guided microwave liver tumor ablations.

Abstract

Introduction. Ablation is one of important methods of liver tumor treatments. However radiation is one of disadvantages of CT-guided procedures including ablation. The purpose of this study is to assess factors that have impact on radiation doses during CT-guided microwave liver tumor ablation.

Material and methods. Radiation doses of CT-guided liver tumor ablations in 127 patients were collected. Then they were compared in terms of number of lesions, lesion size and depth, use of additional localization needles and hydrodissection as well as tumor location.

Results. The median radiation doses of ablations of multiple tumors (2348 mGy*cm) were significantly higher (p = 0.03) than those of single tumors (1784 mGy*cm). No statistically significant differences were noted when other factors (lesion size, depth, location, use of localization needles and hydrodissection) were taken into consideration.

Conclusions. Number of lesions is the most important factor in terms of expected radiation doses in CT-guided microwave liver tumor ablations.

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Keywords

microwave ablation; radiation dose; CT-guided ablation

About this article
Title

Radiation dose in CT-guided microwave liver tumor ablation

Journal

Nowotwory. Journal of Oncology

Issue

Ahead of print

Article type

Research paper (original)

Published online

2021-12-13

Page views

56

Article views/downloads

23

DOI

10.5603/NJO.a2021.0076

Keywords

microwave ablation
radiation dose
CT-guided ablation

Authors

Grzegorz Rosiak
Joanna Podgórska
Katarzyna Pasicz
Krzysztof Milczarek
Dariusz Konecki
Olgierd Rowinski

References (17)
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