Performance of the Emprint and Amica Microwave Ablation Systems in ex vivo Porcine Livers: Sphericity and Reproducibility Versus Size

P. Hendriks; W. E.M. Berkhout; C. I. Kaanen; J. H. Sluijter; I. J. Visser; J. J. van den Dobbelsteen; L. F. de Geus-Oei; A. G. Webb; M. C. Burgmans

doi:10.1007/s00270-020-02742-9

Performance of the Emprint and Amica Microwave Ablation Systems in ex vivo Porcine Livers: Sphericity and Reproducibility Versus Size

P. Hendriks^*, W. E.M. Berkhout, C. I. Kaanen, J. H. Sluijter, I. J. Visser, J. J. van den Dobbelsteen, L. F. de Geus-Oei, A. G. Webb, M. C. Burgmans

^*Corresponding author for this work

Medical Instruments & Bio-Inspired Technology

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Abstract

Purpose: To investigate the performance of two microwave ablation (MWA) systems regarding ablation volume, ablation shape and variability. Materials and Methods: In this ex vivo study, the Emprint and Amica MWA systems were used to ablate porcine livers at 4 different settings of time and power (3 and 5 minutes at 60 and 80 Watt). In total, 48 ablations were analysed for ablation size and shape using Vitrea Advanced Visualization software after acquisition of a 7T MRI scan. Results: Emprint ablations were smaller (11,1 vs. 21,1 mL p < 0.001), more spherical (sphericity index of 0.89 vs. 0.59 p < 0.001) and showed less variability than Amica ablations. In both systems, longer ablation time and higher power resulted in significantly larger ablation volumes. Conclusion: Emprint ablations were more spherical, and the results showed a lower variability than those of Amica ablations. This comes at the price of smaller ablation volumes.

Original language	English
Pages (from-to)	952-958
Journal	Cardiovascular and Interventional Radiology
Volume	44
Issue number	6
DOIs	https://doi.org/10.1007/s00270-020-02742-9
Publication status	Published - 2021

Keywords

Ablation volume
Amica
Emprint
Microwave ablation
Sphericity
Variability

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Hendriks2021_Article_PerformanceOfTheEmprintAndAmicFinal published version, 498 KBLicence: CC BY

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Hendriks, P., Berkhout, W. E. M., Kaanen, C. I., Sluijter, J. H., Visser, I. J., van den Dobbelsteen, J. J., de Geus-Oei, L. F., Webb, A. G., & Burgmans, M. C. (2021). Performance of the Emprint and Amica Microwave Ablation Systems in ex vivo Porcine Livers: Sphericity and Reproducibility Versus Size. Cardiovascular and Interventional Radiology, 44(6), 952-958. https://doi.org/10.1007/s00270-020-02742-9

Hendriks, P. ; Berkhout, W. E.M. ; Kaanen, C. I. ; Sluijter, J. H. ; Visser, I. J. ; van den Dobbelsteen, J. J. ; de Geus-Oei, L. F. ; Webb, A. G. ; Burgmans, M. C. / Performance of the Emprint and Amica Microwave Ablation Systems in ex vivo Porcine Livers : Sphericity and Reproducibility Versus Size. In: Cardiovascular and Interventional Radiology. 2021 ; Vol. 44, No. 6. pp. 952-958.

@article{e74302ab9ef34f479cfd14de2b8d873f,

title = "Performance of the Emprint and Amica Microwave Ablation Systems in ex vivo Porcine Livers: Sphericity and Reproducibility Versus Size",

abstract = "Purpose: To investigate the performance of two microwave ablation (MWA) systems regarding ablation volume, ablation shape and variability. Materials and Methods: In this ex vivo study, the Emprint and Amica MWA systems were used to ablate porcine livers at 4 different settings of time and power (3 and 5 minutes at 60 and 80 Watt). In total, 48 ablations were analysed for ablation size and shape using Vitrea Advanced Visualization software after acquisition of a 7T MRI scan. Results: Emprint ablations were smaller (11,1 vs. 21,1 mL p < 0.001), more spherical (sphericity index of 0.89 vs. 0.59 p < 0.001) and showed less variability than Amica ablations. In both systems, longer ablation time and higher power resulted in significantly larger ablation volumes. Conclusion: Emprint ablations were more spherical, and the results showed a lower variability than those of Amica ablations. This comes at the price of smaller ablation volumes.",

keywords = "Ablation volume, Amica, Emprint, Microwave ablation, Sphericity, Variability",

author = "P. Hendriks and Berkhout, {W. E.M.} and Kaanen, {C. I.} and Sluijter, {J. H.} and Visser, {I. J.} and {van den Dobbelsteen}, {J. J.} and {de Geus-Oei}, {L. F.} and Webb, {A. G.} and Burgmans, {M. C.}",

year = "2021",

doi = "10.1007/s00270-020-02742-9",

language = "English",

volume = "44",

pages = "952--958",

journal = "Cardiovascular and Interventional Radiology",

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Hendriks, P, Berkhout, WEM, Kaanen, CI, Sluijter, JH, Visser, IJ, van den Dobbelsteen, JJ, de Geus-Oei, LF, Webb, AG & Burgmans, MC 2021, 'Performance of the Emprint and Amica Microwave Ablation Systems in ex vivo Porcine Livers: Sphericity and Reproducibility Versus Size', Cardiovascular and Interventional Radiology, vol. 44, no. 6, pp. 952-958. https://doi.org/10.1007/s00270-020-02742-9

Performance of the Emprint and Amica Microwave Ablation Systems in ex vivo Porcine Livers : Sphericity and Reproducibility Versus Size. / Hendriks, P.; Berkhout, W. E.M.; Kaanen, C. I.; Sluijter, J. H.; Visser, I. J.; van den Dobbelsteen, J. J.; de Geus-Oei, L. F.; Webb, A. G.; Burgmans, M. C.

In: Cardiovascular and Interventional Radiology, Vol. 44, No. 6, 2021, p. 952-958.

Research output: Contribution to journal › Article › Scientific › peer-review

TY - JOUR

T1 - Performance of the Emprint and Amica Microwave Ablation Systems in ex vivo Porcine Livers

T2 - Sphericity and Reproducibility Versus Size

AU - Hendriks, P.

AU - Berkhout, W. E.M.

AU - Kaanen, C. I.

AU - Sluijter, J. H.

AU - Visser, I. J.

AU - van den Dobbelsteen, J. J.

AU - de Geus-Oei, L. F.

AU - Webb, A. G.

AU - Burgmans, M. C.

PY - 2021

Y1 - 2021

N2 - Purpose: To investigate the performance of two microwave ablation (MWA) systems regarding ablation volume, ablation shape and variability. Materials and Methods: In this ex vivo study, the Emprint and Amica MWA systems were used to ablate porcine livers at 4 different settings of time and power (3 and 5 minutes at 60 and 80 Watt). In total, 48 ablations were analysed for ablation size and shape using Vitrea Advanced Visualization software after acquisition of a 7T MRI scan. Results: Emprint ablations were smaller (11,1 vs. 21,1 mL p < 0.001), more spherical (sphericity index of 0.89 vs. 0.59 p < 0.001) and showed less variability than Amica ablations. In both systems, longer ablation time and higher power resulted in significantly larger ablation volumes. Conclusion: Emprint ablations were more spherical, and the results showed a lower variability than those of Amica ablations. This comes at the price of smaller ablation volumes.

AB - Purpose: To investigate the performance of two microwave ablation (MWA) systems regarding ablation volume, ablation shape and variability. Materials and Methods: In this ex vivo study, the Emprint and Amica MWA systems were used to ablate porcine livers at 4 different settings of time and power (3 and 5 minutes at 60 and 80 Watt). In total, 48 ablations were analysed for ablation size and shape using Vitrea Advanced Visualization software after acquisition of a 7T MRI scan. Results: Emprint ablations were smaller (11,1 vs. 21,1 mL p < 0.001), more spherical (sphericity index of 0.89 vs. 0.59 p < 0.001) and showed less variability than Amica ablations. In both systems, longer ablation time and higher power resulted in significantly larger ablation volumes. Conclusion: Emprint ablations were more spherical, and the results showed a lower variability than those of Amica ablations. This comes at the price of smaller ablation volumes.

KW - Ablation volume

KW - Amica

KW - Emprint

KW - Microwave ablation

KW - Sphericity

KW - Variability

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U2 - 10.1007/s00270-020-02742-9

DO - 10.1007/s00270-020-02742-9

M3 - Article

C2 - 33462682

AN - SCOPUS:85100142171

VL - 44

SP - 952

EP - 958

JO - Cardiovascular and Interventional Radiology

JF - Cardiovascular and Interventional Radiology

SN - 0174-1551

IS - 6

ER -

Performance of the Emprint and Amica Microwave Ablation Systems in ex vivo Porcine Livers: Sphericity and Reproducibility Versus Size

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