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Status: Bibliographieeintrag

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Verfasst von:Bauer, Dominik F. [VerfasserIn]   i
 Rosenkranz, Julian [VerfasserIn]   i
 Golla, Alena-Kathrin [VerfasserIn]   i
 Tönnes, Christian [VerfasserIn]   i
 Hermann, Ingo [VerfasserIn]   i
 Russ, Tom [VerfasserIn]   i
 Kabelitz, Gordian [VerfasserIn]   i
 Rothfuss, Andreas J. [VerfasserIn]   i
 Schad, Lothar R. [VerfasserIn]   i
 Stallkamp, Jan [VerfasserIn]   i
 Zöllner, Frank G. [VerfasserIn]   i
Titel:Development of an abdominal phantom for the validation of an oligometastatic disease diagnosis workflow
Verf.angabe:Dominik F. Bauer, Julian Rosenkranz, Alena-Kathrin Golla, Christian Tönnes, Ingo Hermann, Tom Russ, Gordian Kabelitz, Andreas J. Rothfuss, Lothar R. Schad, Jan L. Stallkamp, Frank G. Zöllner
E-Jahr:2022
Jahr:05 May 2022
Umfang:10 S.
Fussnoten:Gesehen am 14.11.2023
Titel Quelle:Enthalten in: Medical physics
Ort Quelle:Hoboken, NJ : Wiley, 1974
Jahr Quelle:2022
Band/Heft Quelle:49(2022), 7 vom: Juli, Seite 4445-4454
ISSN Quelle:2473-4209
 1522-8541
Abstract:Purpose The liver is a common site for metastatic disease, which is a challenging and life-threatening condition with a grim prognosis and outcome. We propose a standardized workflow for the diagnosis of oligometastatic disease (OMD), as a gold standard workflow has not been established yet. The envisioned workflow comprises the acquisition of a multimodal image data set, novel image processing techniques, and cone beam computed tomography (CBCT)-guided biopsy for subsequent molecular subtyping. By combining morphological, molecular, and functional information about the tumor, a patient-specific treatment planning is possible. We designed and manufactured an abdominal liver phantom that we used to demonstrate multimodal image acquisition, image processing, and biopsy of the OMD diagnosis workflow. Methods The anthropomorphic abdominal phantom contains a rib cage, a portal vein, lungs, a liver with six lesions, and a hepatic vessel tree. This phantom incorporates three different lesion types with varying visibility under computed tomography (CT), magnetic resonance imaging (MRI), and positron emission tomography CT (PET-CT), which reflects clinical reality. The phantom is puncturable and the size of the corpus and the organs is comparable to those of a real human abdomen. By using several modern additive manufacturing techniques, the manufacturing process is reproducible and allows to incorporate patient-specific anatomies. As a first step of the OMD diagnosis workflow, a preinterventional CT, MRI, and PET-CT data set of the phantom was acquired. The image information was fused using image registration and organ information was extracted via image segmentation. A CBCT-guided needle puncture experiment was performed, where all six liver lesions were punctured with coaxial biopsy needles. Results Qualitative observation of the image data and quantitative evaluation using contrast-to-noise ratio (CNR) confirms that one lesion type is visible only in MRI and not CT. The other two lesion types are visible in CT and MRI. The CBCT-guided needle placement was performed for all six lesions, including those visible only in MRI and not CBCT. This was possible by successfully merging multimodal preinterventional image data. Lungs, bones, and liver vessels serve as realistic inhibitions during needle path planning. Conclusions We have developed a reusable abdominal phantom that has been used to validate a standardized OMD diagnosis workflow. Utilizing the phantom, we have been able to show that a multimodal imaging pipeline is advantageous for a comprehensive detection of liver lesions. In a CBCT-guided needle placement experiment we have punctured lesions that are invisible in CBCT using registered preinterventional MRI scans for needle path planning.
DOI:doi:10.1002/mp.15701
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.

kostenfrei: Volltext: https://doi.org/10.1002/mp.15701
 kostenfrei: Volltext: http://onlinelibrary.wiley.com/doi/abs/10.1002/mp.15701
 DOI: https://doi.org/10.1002/mp.15701
Datenträger:Online-Ressource
Sprache:eng
Sach-SW:anthropomorphic abdominal phantom
 biopsy
 multimodal imaging
K10plus-PPN:1870220692
Verknüpfungen:→ Zeitschrift

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