Feasibility of Augmented Reality-Guided Transjugular Intrahepatic Portosystemic Shunt.
J Vasc Interv Radiol
; 31(12): 2098-2103, 2020 Dec.
Article
em En
| MEDLINE
| ID: mdl-33261744
ABSTRACT
PURPOSE:
To investigate an augmented reality (AR)-guided endovascular puncture to facilitate successful transjugular intrahepatic portosystemic shunt (TIPS). MATERIALS ANDMETHODS:
An AR navigation system for TIPS was designed. Three-dimensional (3D) liver models including portal and hepatic vein anatomy were extracted from preoperative CT images. The 3D models, intraoperative subjects, and electromagnetic tracking information of the puncture needles were integrated through the system calibration. In the AR head-mounted display, the 3D models were overlaid on the subjects, which was a liver phantom in the first phase and live beagle dogs in the second phase. One life-size liver phantom and 9 beagle dogs were used in the experiments. Imaging after puncture was performed to validate whether the needle tip accessed the target hepatic vein successfully.RESULTS:
Endovascular punctures of the portal vein of the liver phantom were repeated 30 times under the guidance of the AR system, and the puncture needle successfully accessed the target vein during each attempt. In the experiments of live canine subjects, the punctures were successful in 2 attempts in 7 beagle dogs and in 1 attempt in the remaining 2 dogs. The puncture time of needle from hepatic vein to portal vein was 5-10 s in the phantom experiments and 10-30 s in the canine experiments.CONCLUSIONS:
The feasibility of AR-based navigation facilitating accurate and successful portal vein access in preclinical models of TIPS was validated.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Veia Porta
/
Radiografia Intervencionista
/
Derivação Portossistêmica Transjugular Intra-Hepática
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Cirurgia Assistida por Computador
/
Procedimentos Endovasculares
/
Realidade Aumentada
/
Veias Hepáticas
Tipo de estudo:
Prognostic_studies
Limite:
Animals
/
Humans
Idioma:
En
Revista:
J Vasc Interv Radiol
Ano de publicação:
2020
Tipo de documento:
Article