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Verfasst von:Sommer, Christof-Matthias [VerfasserIn]   i
 Kortes, Nikolas [VerfasserIn]   i
 Zelzer, S. [VerfasserIn]   i
 Arnegger, F. U. [VerfasserIn]   i
 Stampfl, Ulrike [VerfasserIn]   i
 Bellemann, Nadine [VerfasserIn]   i
 Gehrig, Tobias [VerfasserIn]   i
 Nickel, Felix [VerfasserIn]   i
 Kenngott, Hannes Götz [VerfasserIn]   i
 Mogler, Carolin [VerfasserIn]   i
 Longerich, Thomas [VerfasserIn]   i
 Meinzer, Hans-Peter [VerfasserIn]   i
 Richter, Götz Martin [VerfasserIn]   i
 Kauczor, Hans-Ulrich [VerfasserIn]   i
 Radeleff, Boris [VerfasserIn]   i
Titel:Renal artery embolization combined with radiofrequency ablation in a porcine kidney model
Titelzusatz:effect of small and narrowly calibrated microparticles as embolization material on coagulation diameter, volume, and shape
Verf.angabe:C.M. Sommer, N. Kortes, S. Zelzer, F.U. Arnegger, U. Stampfl, N. Bellemann, T. Gehrig, F. Nickel, H.G. Kenngott, C. Mogler, T. Longerich, H.P. Meinzer, G.M. Richter, H.U. Kauczor, B.A. Radeleff
Jahr:2011
Umfang:10 S.
Fussnoten:Online veröffentlicht: 8 June 2010 ; Gesehen am 18.10.2022
Titel Quelle:Enthalten in: CardioVascular and interventional radiology
Ort Quelle:Berlin : Springer, 1978
Jahr Quelle:2011
Band/Heft Quelle:34(2011), Seite 156-165
ISSN Quelle:1432-086X
Abstract:The purpose of this study was to evaluate the effect of renal artery embolization with small and narrowly calibrated microparticles on the coagulation diameter, volume, and shape of radiofrequency ablations (RFAs) in porcine kidneys. Forty-eight RFAs were performed in 24 kidneys of 12 pigs. In 6 animals, bilateral renal artery embolization was performed with small and narrowly calibrated microparticles. Upper and lower kidney poles were ablated with identical system parameters. Applying three-dimensional segmentation software, RFAs were segmented on registered 2 mm-thin macroscopic slices. Length, depth, width, volume_segmented, and volume_calculated were determined to describe the size of the RFAs. To evaluate the shape of the RFAs, depth-to-width ratio (perfect symmetry-to-lesion length was indicated by a ratio of 1), sphericity ratio (perfect sphere was indicated by a sphericity ratio of 1), eccentricity (perfect sphere was indicated by an eccentricity of 0), and circularity (perfect circle was indicated by a circularity of 1) were determined. Embolized compared with nonembolized RFAs showed significantly greater depth (23.4 ± 3.6 vs. 17.2 ± 1.8 mm; p < 0.001) and width (20.1 ± 2.9 vs. 12.6 ± 3.7 mm; p < 0.001); significantly larger volume_segmented (8.6 ± 3.2 vs. 3.0 ± 0.7 ml; p < 0.001) and volume_calculated (8.4 ± 3.0 ml vs. 3.3 ± 1.1 ml; p < 0.001); significantly lower depth-to-width (1.17 ± 0.10 vs. 1.48 ± 0.44; p < 0.05), sphericity (1.55 ± 0.44 vs. 1.96 ± 0.43; p < 0.01), and eccentricity (0.84 ± 0.61 vs. 1.73 ± 0.91; p < 0.01) ratios; and significantly greater circularity (0.62 ± 0.14 vs. 0.45 ± 0.16; p < 0.01). Renal artery embolization with small and narrowly calibrated microparticles affected the coagulation diameter, volume, and shape of RFAs in porcine kidneys. Embolized RFAs were significantly larger and more spherical compared with nonembolized RFAs.
DOI:doi:10.1007/s00270-010-9908-9
URL:Bitte beachten Sie: Dies ist ein Bibliographieeintrag. Ein Volltextzugriff für Mitglieder der Universität besteht hier nur, falls für die entsprechende Zeitschrift/den entsprechenden Sammelband ein Abonnement besteht oder es sich um einen OpenAccess-Titel handelt.

Volltext: https://doi.org/10.1007/s00270-010-9908-9
 DOI: https://doi.org/10.1007/s00270-010-9908-9
Datenträger:Online-Ressource
Sprache:eng
Bibliogr. Hinweis:Erscheint auch als : Druck-Ausgabe: Renal artery embolization combined with radiofrequency ablation in a porcine kidney model. - 2011
Sach-SW:3d Segmentation
 Embozene
 Particles
 Porcine kidney
 Radiofrequency ablation
 Transarterial embolization
K10plus-PPN:1819121739
Verknüpfungen:→ Zeitschrift

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