Improved electromagnetic tracking for catheter path reconstruction with application in high-dose-rate brachytherapy

Lugez, Elodie; Sadjadi, H. Mohseni; Joshi, Chandra P.; Akl, Selim G.; Fichtinger, Gabor

doi:10.1007/s11548-017-1534-4

Cited by 16 publications

(12 citation statements)

References 28 publications

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“…It is likely that future phantom advancement will continually use 3D printing, also referred to as “rapid prototyping”. We found just a few examples of this in the review [ 33 , 54 , 86 , 126 ], which may be a limitation of the search criteria in excluding patient specific phantoms, where 3D printing was gradually used in brachytherapy [ 147 ].…”

Section: Discussionmentioning

confidence: 99%

“…The authors investigated the mass attenuation coefficient of 192 Ir for PAA and soft tissue, concluding equivalent behavior in the energy region of interest. Lugez et al [86] employed rapid prototyping with a resolution of 0.25 mm to manufacture a phantom consisting of seven HDR prostate brachytherapy grids linked together, with a slot for an EM sensor. This allowed to evaluate the accuracy of tracking catheter paths.…”

Section: Phantom Size/materialsmentioning

confidence: 99%

“…Lugez et al . [ 86 ] employed rapid prototyping with a resolution of 0.25 mm to manufacture a phantom consisting of seven HDR prostate brachytherapy grids linked together, with a slot for an EM sensor. This allowed to evaluate the accuracy of tracking catheter paths.…”

Section: Phantom Size/materialsmentioning

confidence: 99%

See 2 more Smart Citations

A review of brachytherapy physical phantoms developed over the last 20 years: clinical purpose and future requirements

Wilby¹,

Palmer²,

Polak³

et al. 2021

jcb

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Within the brachytherapy community, many phantoms are constructed in-house, and less commercial development is observed as compared to the field of external beam. Computational or virtual phantom design has seen considerable growth; however, physical phantoms are beneficial for brachytherapy, in which quality is dependent on physical processes, such as accuracy of source placement. Focusing on the design of physical phantoms, this review paper presents a summary of brachytherapy specific phantoms in published journal articles over the last twenty years (January 1, 2000-December 31, 2019). The papers were analyzed and tabulated by their primary clinical purpose, which was deduced from their associated publications. A substantial body of work has been published on phantom designs from the brachytherapy community, but a standardized method of reporting technical aspects of the phantoms is lacking. In-house phantom development demonstrates an increasing interest in magnetic resonance (MR) tissue mimicking materials, which is not yet reflected in commercial phantoms available for brachytherapy. The evaluation of phantom design provides insight into the way, in which brachytherapy practice has changed over time, and demonstrates the customised and broad nature of treatments offered.

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Section: Discussionmentioning

confidence: 99%

Section: Phantom Size/materialsmentioning

confidence: 99%

See 1 more Smart Citation

A review of brachytherapy physical phantoms developed over the last 20 years: clinical purpose and future requirements

Wilby¹,

Palmer²,

Polak³

et al. 2021

jcb

View full text Add to dashboard Cite

show abstract

“…Recently, some works have been published evaluating the performance of EMT systems for its use in interstitial BT, reporting an excellent accuracy of about 1 mm. [103][104][105][106][107][108][109][110] Manufacturers are working on this development because of its high potential as a component of the HDR Units for both verification and reconstruction assessment.…”

Section: Recent and Future Prospectsmentioning

confidence: 99%

Review of strategies for MRI based reconstruction of endocavitary and interstitial applicators in brachytherapy of cervical cancer

Richart

Carmona-Meseguer²,

García-Martinez

et al. 2018

Reports of Practical Oncology & Radiotherapy

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Another strategy to improve the reconstruction process is based on the incorporation of MR markers, such as small pellets, to be used as anchor points. Many institutions employ computed tomography (CT) as a supporting image modality. The registration of CT and MR image sets should be carefully performed, and its uncertainty previously assessed. Besides, an important research work is being carried out regarding the use of ultrasound and electromagnetic tracking technologies.

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“…Embedding sensors in the soft robot can give the information needed to meet said control challenges, but these sensors must have the ability to bend, twist, and contort in tandem with the soft robot. In surgical soft robotics, the most common sensing methods are external vision-based systems using intraoperative imaging, [14], [15], electromagnetic tracking, [15] [16], needle-based [17] and catheter-based interventions [18], [19]. But all these techniques present some drawbacks.…”

Section: Introductionmentioning

confidence: 99%

Organ Shape Sensing using Pneumatically Attachable Flexible Rails in Robotic-Assisted Laparoscopic Surgery

Aoife¹,

Dietsch²,

Dimitrakakis³

et al. 2022

Preprint

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In robotic-assisted partial nephrectomy, surgeons remove a part of a kidney often due to the presence of a mass. A drop-in ultrasound probe paired to a surgical robot is deployed to execute multiple swipes over the kidney surface to localise the mass and define the margins of resection. This subtask is challenging and must be performed by a highly skilled surgeon. Automating this sub-task may reduce cognitive load for the surgeon and improve patient outcomes. The overall goal of this work is to autonomously move the ultrasound probe on the surface of the kidney taking advantage of the use of the Pneumatically Attachable Flexible (PAF) rail system, a soft robotic device used for organ scanning and repositioning. First, we integrate a shape-sensing optical fibre into the PAF rail system to evaluate the curvature of target organs in robotic-assisted laparoscopic surgery. Then, we investigate the impact of the stiffness of the material of the PAF rail on the curvature sensing accuracy, considering that soft targets are present in the surgical field. Finally, we use shape sensing to plan the trajectory of the da Vinci surgical robot paired with a drop-in ultrasound probe and autonomously generate an Ultrasound scan of a kidney phantom.

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Improved electromagnetic tracking for catheter path reconstruction with application in high-dose-rate brachytherapy

Cited by 16 publications

References 28 publications

A review of brachytherapy physical phantoms developed over the last 20 years: clinical purpose and future requirements

A review of brachytherapy physical phantoms developed over the last 20 years: clinical purpose and future requirements

Review of strategies for MRI based reconstruction of endocavitary and interstitial applicators in brachytherapy of cervical cancer

Organ Shape Sensing using Pneumatically Attachable Flexible Rails in Robotic-Assisted Laparoscopic Surgery

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