In: Vascular, 31 (2023), Nr. 4. pp. 644-653. ISSN 1708-5381 (Druck-Ausg.); 1708-539X (Online-Ausg.)
Preview |
PDF, English
- main document
Download (748kB) | Terms of use |
Abstract
Objectives The objective is to evaluate the feasibility and interobserver agreement of a Mixed Reality Viewer (MRV) in the assessment of aortoiliac vascular anatomy of abdominal aortic aneurysm (AAA) patients. Methods Fifty preoperative computed tomography angiographies (CTAs) of AAA patients were included. CTAs were assessed in a mixed reality (MR) environment with respect to aortoiliac anatomy according to a standardized protocol by two experienced observers (Mixed Reality Viewer, MRV, Brainlab AG, Germany). Additionally, all CTAs were independently assessed applying the same protocol by the same observers using a conventional DICOM viewer on a two-dimensional screen with multi-planar reconstructions (Conventional viewer, CV, GE Centricity PACS RA1000 Workstation, GE, United States). The protocol included four sets of items: calcification, dilatation, patency, and tortuosity as well as the number of lumbar and renal arteries. Interobserver agreement (IA, Cohen’s Kappa, κ) was calculated for every item set. Results All CTAs could successfully be displayed in the MRV (100%). The MRV demonstrated equal or better IA in the assessment of anterior and posterior calcification (κMRV: 0.68 and 0.61, κCV: 0.33 and 0.45, respectively) as well as tortuosity (κMRV: 0.60, κCV: 0.48) and dilatation (κMRV: 0.68, κCV: 0.67). The CV demonstrated better IA in the assessment of patency (κMRV: 0.74, κCV: 0.93). The CV also identified significantly more lumbar arteries (CV: 379, MRV: 239, p < 0.01). Conclusions The MRV is a feasible imaging viewing technology in clinical routine. Future efforts should aim at improving hologram quality and enabling accurate registration of the hologram with the physical patient.
Document type: | Article |
---|---|
Journal or Publication Title: | Vascular |
Volume: | 31 |
Number: | 4 |
Publisher: | Sage Publications |
Place of Publication: | London [u.a.] |
Edition: | Zweitveröffentlichung |
Date Deposited: | 27 Jul 2023 08:41 |
Date: | 2023 |
ISSN: | 1708-5381 (Druck-Ausg.); 1708-539X (Online-Ausg.) |
Page Range: | pp. 644-653 |
Faculties / Institutes: | Medizinische Fakultät Heidelberg > Chirurgische Universitätsklinik Medizinische Fakultät Heidelberg > Radiologische Universitätsklinik Medizinische Fakultät Heidelberg > Institut für Medizinische Biometrie |
DDC-classification: | 610 Medical sciences Medicine |
Uncontrolled Keywords: | Mixed reality, augmented reality, virtual reality, EVAR, abdominal aortic aneurysm, Aneurysm |
Additional Information: | Dieser Beitrag ist aufgrund einer (DFG-geförderten) Allianz bzw. Nationallizenz frei zugänglich. *** This publication is freely accessible due to an Alliance licence and a national licence (funded by the DFG, German Research Foundation) respectively. |