| |  Online-Ressource |
|---|
| Verfasst von: | Do, Thuy [VerfasserIn]  |
|---|
| | Heim, Julia [VerfasserIn] |
|---|
| | Skornitzke, Stephan [VerfasserIn] |
|---|
| | Melzig, Claudius [VerfasserIn] |
|---|
| | Vollherbst, Dominik [VerfasserIn] |
|---|
| | Färber, Michael [VerfasserIn] |
|---|
| | Pereira, Philippe L. [VerfasserIn] |
|---|
| | Kauczor, Hans-Ulrich [VerfasserIn] |
|---|
| | Sommer, Christof-Matthias [VerfasserIn] |
|---|
| Titel: | Single-energy versus dual-energy imaging during CT-guided biopsy using dedicated metal artifact reduction algorithm in an in vivo pig model |
|---|
| Verf.angabe: | Thuy Duong Do, Julia Heim, Stephan Skornitzke, Claudius Melzig, Dominik F. Vollherbst, Michael Faerber, Philippe L. Pereira, Hans-Ulrich Kauczor, Christof Matthias Sommer |
|---|
| E-Jahr: | 2021 |
|---|
| Jahr: | April 26, 2021 |
|---|
| Umfang: | 14 S. |
|---|
| Teil: | volume:16 |
|---|
| | year:2021 |
|---|
| | number:4 |
|---|
| | elocationid:e0249921p1-14 |
|---|
| | extent:14 |
|---|
| Titel Quelle: | Enthalten in: PLOS ONE |
|---|
| Ort Quelle: | San Francisco, California, US : PLOS, 2006 |
|---|
| Jahr Quelle: | 2021 |
|---|
| Band/Heft Quelle: | 16(2021), 4, Artikel-ID e0249921p1-14 |
|---|
| ISSN Quelle: | 1932-6203 |
|---|
| Abstract: | Purpose To evaluate dual-energy CT (DE) and dedicated metal artifact reduction algorithms (iMAR) during CT-guided biopsy in comparison to single-energy CT (SE). Methods A trocar was placed in the liver of six pigs. CT acquisitions were performed with SE and dose equivalent DE at four dose levels(1.7-13.5mGy). Iterative reconstructions were performed with and without iMAR. ROIs were placed in four positions e.g. at the trocar tip(TROCAR) and liver parenchyma adjacent to the trocar tip(LIVER-1) by two independent observers for quantitative analysis using CT numbers, noise, SNR and CNR. Qualitative image analysis was performed regarding overall image quality and artifacts generated by iMAR. Results There were no significant differences in CT numbers between DE and SE at TROCAR and LIVER-1 irrespective of iMAR. iMAR significantly reduced metal artifacts at LIVER-1 for all exposure settings for DE and SE(p = 0.02-0.04), but not at TROCAR. SNR, CNR and noise were comparable for DE and SE. SNR was best for high dose levels of 6.7/13.5mGy. Mean difference in the Blant-Altman analysis was -8.43 to 0.36. Cohen’s kappa for qualitative interreader-agreement was 0.901. Conclusions iMAR independently reduced metal artifacts more effectively and efficiently than CT acquisition in DE at any dose setting and its application is feasible during CT-guided liver biopsy. |
|---|
| DOI: | doi:10.1371/journal.pone.0249921 |
|---|
| 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 ; Verlag: https://doi.org/10.1371/journal.pone.0249921 |
|---|
| | Volltext: https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0249921 |
|---|
| | DOI: https://doi.org/10.1371/journal.pone.0249921 |
|---|
| Datenträger: | Online-Ressource |
|---|
| Sprache: | eng |
|---|
| Sach-SW: | Algorithms |
|---|
| | Biopsy |
|---|
| | Computed axial tomography |
|---|
| | Image analysis |
|---|
| | Image processing |
|---|
| | In vivo imaging |
|---|
| | Inferior vena cava |
|---|
| | Liver and spleen scan |
|---|
| K10plus-PPN: | 1772764965 |
|---|
| Verknüpfungen: | → Zeitschrift |
|---|
Single-energy versus dual-energy imaging during CT-guided biopsy using dedicated metal artifact reduction algorithm in an in vivo pig model / Do, Thuy [VerfasserIn]; April 26, 2021 (Online-Ressource)
