Comparison of freehand-navigated and aiming device-navigated targeting of liver lesions

Wallach, Daphné; Toporek, Grzegorz; Weber, Stefan; Bale, Reto; Widmann, Gerlig

doi:10.1002/rcs.1505

Cited by 39 publications

(42 citation statements)

References 14 publications

(31 reference statements)

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“…Ce dernier, reposant sur le suivi de balises de repérage positionnées sur les instruments et à la surface du patient par des caméras stéréoscopiques, nécessite une ligne de vue directe entre les caméras et les balises. Cette ligne de visée sans interposition d'objet n'est pas toujours facile à garantir en radiologie interventionnelle [7,12,14,15].…”

Section: Discussionunclassified

“…La précision du geste était meilleure en NAV avec une distance médiane au centre de la cible de 3,7 mm [Q1-Q3 = 2-6,7] contre 15 mm [10][11][12][13][14][15][16][17][18][19][20] en TDM (p < 0,001) (Tableau 1). …”

Section: Résultatsunclassified

“…Ainsi ces dernières années, des nouvelles technologies issues du domaine des gestes médico-chirurgicaux assistés par ordinateur ont vu le jour. Ces technologies ont été introduites avec succès en tomodensitométrie [7][8][9][10][11][12][13][14], où elles ont pour objectifs de faciliter le positionnement de l'aiguille, notamment pour des trajectoires en double obliquité, d'améliorer la précision des ponctions et de diminuer la dose d'irradiation.…”

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Évaluation sur fantôme d’une station de navigation pour l’assistance des ponctions sous scanner en double obliquité

Moncharmont

Moreau–Gaudry

Medici

et al. 2015

Journal de Radiologie Diagnostique et Interventionnelle

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Section: Discussionunclassified

Section: Résultatsunclassified

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Évaluation sur fantôme d’une station de navigation pour l’assistance des ponctions sous scanner en double obliquité

Moncharmont

Moreau–Gaudry

Medici

et al. 2015

Journal de Radiologie Diagnostique et Interventionnelle

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“…A specific configuration of the markers, with the desired position of them and a specific size and shape of the tool, can be defined. This is an important feature of this system that allows that everyone can create a rigid body or a pointer tool to a specific task that the provided tools by NDI cannot satisfy [8].…”

Section: B Ndi 6d Architectmentioning

confidence: 99%

Intraoperative bone registration: An implementation in orthopaedic surgery using polaris vicra system

Barbosa

Serrador

Santos

et al. 2017

2017 IEEE 5th Portuguese Meeting on Bioengineering (ENBENG)

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-The introduction of the surgical navigation system in the operating room has brought a great development to the surgeries. Nowadays, the navigated surgeries are present in several fields of medicine. This is a technology that requires an optical tracking system to perform the registration procedure during an intraoperative situation. The preoperative plan consists in performing a 3D reconstruction of the treated region and planning all procedures during the surgery. The registration is an important procedure once it calculates the transformation between the coordinate system of the preoperative plan on the software and the coordinate system of the surgical room in order to be able the visualization of the position and orientation of the surgical instruments in relation to the 3D model obtained in the preoperative plan. A workflow in 3DSlicer software to perform the registration procedure is presented in this paper with all required steps to achieve the navigated surgery. Also, it is presented the results obtained from the registration in order to evaluate the procedure.

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“…An existing surgical navigation system (CAS-One Vario, CAScination, Bern, Switzerland) developed for open liver surgery [15] and interventional procedures [16] was adapted to the requirements of percutaneous needle insertions for VM treatment. Tracking of surgical tools is completed by means of an optical tracking system (NDI Polaris Vicra, Northern Digital, Waterloo, Ontario, Canada) and a set of custom marker shields with passive markers which can be adapted to a variety of instruments.…”

Section: Experimental Evaluation Of Proposed Approach Stereotactic Namentioning

confidence: 99%

Feasibility of stereotactic MRI-based image guidance for the treatment of vascular malformations: a phantom study

et al. 2016

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PurposeTreatment of vascular malformations requires the placement of a needle within vessels which may be as small as 1 mm, with the current state of the art relying exclusively on two dimensional fluoroscopy images for guidance. We hypothesize that the combination of stereotactic image guidance with existing targeting methods will result in faster and more reproducible needle placements, as well as reduced radiation exposure, when compared with standard methods based on fluoroscopy alone. MethodsThe proposed navigation approach was evaluated in a phantom experiment designed to allow direct comparison with the conventional method. An anatomical phantom of the left forearm was constructed, including an independent control mechanism to indicate the attainment of the target position. Three interventionalists (one inexperienced, two of them frequently practice the conventional fluoroscopic technique) performed 45 targeting attempts utilizing the combined and 45 targeting attempts utilizing the standard approaches. ResultsIn all 45 attempts the users were able to reach the target when utilizing the combined approach. In two cases targeting was stopped after 15 minutes without reaching the target when utilizing only the C-arm. The inexperienced user was faster when utilizing the combined approach and applied significantly less radiation than when utilizing the conventional approach. Conversely, both experienced users were faster when using the conventional approach, in one case significantly so, with no significant difference in radiation dose when compared to the combined approach. ConclusionsThis work presents an initial evaluation of a combined navigation fluoroscopy targeting technique in a phantom study. The results suggest that, especially for inexperienced interventionalists, navigation may help to reduce the time and the radiation dose. Future work will focus on the improvement and clinical evaluation of the proposed method.

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Comparison of freehand-navigated and aiming device-navigated targeting of liver lesions

Abstract: Using an aiming device may increase the lateral accuracy of navigated needle insertion.

Cited by 39 publications

References 14 publications

Évaluation sur fantôme d’une station de navigation pour l’assistance des ponctions sous scanner en double obliquité

Évaluation sur fantôme d’une station de navigation pour l’assistance des ponctions sous scanner en double obliquité

Intraoperative bone registration: An implementation in orthopaedic surgery using polaris vicra system

Feasibility of stereotactic MRI-based image guidance for the treatment of vascular malformations: a phantom study

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