Evidence map›Paper›PMID 32712885›Full record

ArticleInternational journal of computer assisted radiology and surgery2020

Electromagnetic (EM) catheter path tracking in ultrasound-guided brachytherapy of the breast.

Natasja N Y Janssen, Harry Brastianos, Aquila Akingbade, Tim Olding, Thomas Vaughan, Tamas Ungi, Andras Lasso, Chandra Joshi, Martin Korzeniowski, Conrad Falkson and 1 more

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Article in International journal of computer assisted radiology and surgery, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
0.5field-weighted citation impact, top 34% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

3 citing papers in PubMed, 5 citations in OpenAlex.

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4 · The record

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PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

11 authors at 2 institutions in 1 country.

Natasja N Y JanssenSchool of Computing, Queen's University, Kingston, ON, Canada. natasjajanssen89@gmail.com.ORCID http://orcid.org/0000-0002-1704-1891
Harry BrastianosDepartment of Radiation Oncology, Kingston General Hospital, Kingston, ON, Canada.
Aquila AkingbadeSchool of Medicine, Queen's University, Kingston, ON, Canada.
Tim OldingDepartment of Radiation Oncology, Kingston General Hospital, Kingston, ON, Canada.
Thomas VaughanSchool of Computing, Queen's University, Kingston, ON, Canada.
Tamas UngiSchool of Computing, Queen's University, Kingston, ON, Canada.
Andras LassoSchool of Computing, Queen's University, Kingston, ON, Canada.
Chandra JoshiDepartment of Radiation Oncology, Kingston General Hospital, Kingston, ON, Canada.
Martin KorzeniowskiDepartment of Radiation Oncology, Kingston General Hospital, Kingston, ON, Canada.
Conrad FalksonDepartment of Radiation Oncology, Kingston General Hospital, Kingston, ON, Canada.
Gabor FichtingerSchool of Computing, Queen's University, Kingston, ON, Canada.
Queen's University · CAKingston General Hospital · CA

Funding

Slicer+PLUS: Collaborative, open-source software for ultrasound analysisR01EB021396 · NIBIB · KITWARE, INC. · PI AYLWARD, STEPHEN R, FICHTINGER, GABOR · 2016 to 2019
$2.5M
Canada Research Chairs Computer-Integrated SurgeryCanarie Research Software ProgramNIH/NIBIB 1R01EB021396-01A1-Slicer+PLUSNIH/NIGMS 1R01EB021396-01A1 - Slicer+PLUS
6 · The paper itself

Abstract

purposeTo evaluate a novel navigation system for breast brachytherapy, based on ultrasound (US)-guided catheter needle implantations followed by electromagnetic (EM) tracking of catheter paths.

methodsBreast phantoms were produced, containing US-visible tumors. Ultrasound was used to localize the tumor pose and volume within the phantom, followed by planning an optimal catheter pattern through the tumor using navigation software. An electromagnetic (EM)-tracked catheter needle was used to insert the catheters in the desired pattern. The inserted catheters were visualized on a post-implant CT, serving as ground truth. Electromagnetic (EM) tracking and reconstruction of the inserted catheter paths were performed by pulling a flexible EM guidewire through each catheter, performed in two clinical brachytherapy suites. The accuracy of EM catheter tracking was evaluated by calculating the Hausdorff distance between the EM-tracked and CT-based catheter paths. The accuracy and clinical feasibility of EM catheter tracking were also evaluated in three breast cancer patients, performed in a separate experiment room.

resultsA total of 71 catheter needles were implanted into 12 phantoms using US guidance and EM navigation, in an average ± SD time of 8.1 ± 2.9 min. The accuracy of EM catheter tracking was dependent on the brachytherapy suite: 2.0 ± 1.2 mm in suite 1 and 0.6 ± 0.2 mm in suite 2. EM catheter tracking was successfully performed in three breast brachytherapy patients. Catheter tracking typically took less than 5 min and had an average accuracy of 1.7 ± 0.3 mm.

conclusionOur preliminary results show a potential role for US guidance and EM needle navigation for implantation of catheters for breast brachytherapy. EM catheter tracking can accurately assess the implant geometry in breast brachytherapy patients. This methodology has the potential to evaluate catheter positions directly after the implantation and during the several fractions of the treatment.

Indexed as

Electromagnetic PhenomenaBrachytherapyBreastBreast NeoplasmsFemaleHumansPhantoms, ImagingRadiotherapy DosageSoftwareUltrasonography, InterventionalCatheter trackingElectromagnetic trackingHDR breast brachytherapyOpen-source

Identifiers

PMID32712885
OpenAlexW3044954469

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.