Usefulness of metal artifact reduction algorithms from the pacemaker lead in diagnosis of late perforation: The right choice makes it easier to make a decision

Młynarski, Rafal; Sosna, Michał; Honkowicz, Maciej; Gibinski, Michal; Simionescu, Karolina; Rozmus, Michał; Gołba, Krzysztof S.

doi:10.33963/kp.a2023.0014

Kardiol Pol

2023

DOI: 10.33963/kp.a2023.0014

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Usefulness of metal artifact reduction algorithms from the pacemaker lead in diagnosis of late perforation: The right choice makes it easier to make a decision

Rafal Młynarski

Michał Sosna

Maciej Honkowicz

et al.

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“…Routine use of 12-lead ECG and right anterior oblique (RAO) imaging during implantation should be considered to avoid this high-risk pseudo-septal position and potential complications. Utilization of novel imaging algorithms such as iterative metal artifact reduction for computed tomography might be helpful for better evaluation of the perforated leads [6].…”

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confidence: 99%

Left anterior descending artery injury during routine dual-chamber pacemaker implantation leading to myocardial infarction

et al. 2023

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mentioning

confidence: 99%

Left anterior descending artery injury during routine dual-chamber pacemaker implantation leading to myocardial infarction

et al. 2023

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A New Iterative Metal Artifact Reduction Algorithm for Both Energy-Integrating and Photon-Counting CT Systems

Anhaus,

Heider,

Killermann

et al. 2024

Invest Radiol

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Objectives The aim of this study was to introduce and evaluate a new metal artifact reduction framework (iMARv2) that addresses the drawbacks (residual artifacts after correction and user preferences for image quality) associated with the current clinically applied iMAR. Materials and Methods A new iMARv2 has been introduced, combining the current iMAR with new modular components to remove residual metal artifacts after image correction. The postcorrection image impression is adjustable with user-selectable strength settings. Phantom scans from an energy-integrating and a photon-counting detector CT were used to assess image quality, including a Gammex phantom and anthropomorphic phantoms. In addition, 36 clinical cases (with metallic implants such as dental fillings, hip replacements, and spinal screws) were reconstructed and evaluated in a blinded and randomized reader study. Results The Gammex phantom showed lower HU errors compared with the uncorrected image at almost all iMAR and iMARv2 settings evaluated, with only minor differences between iMAR and the different iMARv2 settings. In addition, the anthropomorphic phantoms showed a trend toward lower errors with higher iMARv2 strength settings. On average, the iMARv2 strength 3 performed best of all the clinical reconstructions evaluated, with a significant increase in diagnostic confidence and decrease in artifacts. All hip and dental cases showed a significant increase in diagnostic confidence and decrease in artifact strength, and the improvements from iMARv2 in the dental cases were significant compared with iMAR. There were no significant improvements in the spine. Conclusions This work has introduced and evaluated a new method for metal artifact reduction and demonstrated its utility in routine clinical datasets. The greatest improvements were seen in dental fillings, where iMARv2 significantly improved image quality compared with conventional iMAR.

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Usefulness of metal artifact reduction algorithms from the pacemaker lead in diagnosis of late perforation: The right choice makes it easier to make a decision

Cited by 2 publications

References 2 publications

Left anterior descending artery injury during routine dual-chamber pacemaker implantation leading to myocardial infarction

Left anterior descending artery injury during routine dual-chamber pacemaker implantation leading to myocardial infarction

A New Iterative Metal Artifact Reduction Algorithm for Both Energy-Integrating and Photon-Counting CT Systems

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