Evidence map›Paper›PMID 30548795›Full record

ArticleJournal of applied clinical medical physics2019

Direct comparison between surface imaging and orthogonal radiographic imaging for SRS localization in phantom.

David Wiant, Han Liu, T Lane Hayes, Qingyang Shang, Sasa Mutic, Benjamin Sintay

Abstract read
In one paragraph

Article in Journal of applied clinical medical physics, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
–field-weighted citation impact
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

18 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Surface guided radiation therapy with an innovative open-face mask and mouth bite: patient motion management in brain stereotactic radiotherapy.Clinical & translational oncology : official publication of the Federation of Spanish Oncology Societies and of the National Cancer Institute of Mexico · 2024
    Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Review
  11. Surface-guided radiation therapy for breast cancer: more precise positioning.Clinical & translational oncology : official publication of the Federation of Spanish Oncology Societies and of the National Cancer Institute of Mexico · 2021
    Article
  12. Article
  13. Article
  14. Article
  15. Performance assessment of two motion management systems for frameless stereotactic radiosurgery.Strahlentherapie und Onkologie : Organ der Deutschen Rontgengesellschaft ... [et al] · 2021
    Article
  16. Article
  17. Article
  18. Validation of CatalystIn vivo (Athens, Greece)
    Article
4 · The record

Corrections and comments

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

6 authors.

David WiantDepartment of Radiation Oncology, Cone Health Cancer Center, Greensboro, North Carolina, 27403, USA.
Han LiuDepartment of Radiation Oncology, Cone Health Cancer Center, Greensboro, North Carolina, 27403, USA.
T Lane HayesDepartment of Radiation Oncology, Cone Health Cancer Center, Greensboro, North Carolina, 27403, USA.
Qingyang ShangDepartment of Radiation Oncology, Cone Health Cancer Center, Greensboro, North Carolina, 27403, USA.
Sasa MuticDepartment of Radiation Oncology, Washington University School of Medicine, St. Louis, Michigan, 63110, USA.
Benjamin SintayDepartment of Radiation Oncology, Cone Health Cancer Center, Greensboro, North Carolina, 27403, USA.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeSurface imaging (SI) offers a nonionizing, near real time alternative to radiographic imaging for intrafraction radiosurgery localization. In this work, we systematically compared a commercial SI system vs a commercial room mounted x-ray localization system in phantom.

methodsAn anthropomorphic head phantom with fiducial markers was imaged with linear accelerator on-board x-ray imaging, SI, and room mounted x-ray imaging (RM) at ±45° and ±90° couch angles for three different head tilts and six different isocenters (72 total positions). The shifts generated by the three systems were compared as functions of couch angle, head tilt, and isocenter position with the on-board imaging shifts used as ground truth. Two sample Kolmogorov-Smirnov tests were used to evaluate equivalence of the groups.

resultsThe magnitude of the displacement vectors for RM minus on-board imaging and SI minus on-board imaging over all 72 phantom positions were 0.7 ± 0.3 mm for both cases. The RM and SI showed no significant difference based on couch angle or isocenter position. Both systems showed decreasing accuracy with increasing couch angle, but both systems agreed with ground truth to <=1.1 mm at all couch angles. The exaggerated chin-up head orientation showed significantly different shifts for SI and RM based on increased variance in the SI measurements, although both had submillimeter accuracy on average. The standard deviation of the real time SI displacement vector was <0.06 mm over all measurements, during which the on-board imaging panels partially blocked the lateral camera pods for half the time.

conclusionsRM and SI showed similar accuracy over measurements at 72 different phantom positions. SI showed minimal performance loss with camera pods blocked. SI is a feasible option for intra-fraction radiosurgery localization based on these phantom measurements.

Indexed as

Fiducial MarkersPhantoms, ImagingRadiosurgeryCone-Beam Computed TomographyHeadHumansImaging, Three-DimensionalNeoplasmsRadiotherapy DosageRadiotherapy, Intensity-ModulatedRadiotherapy Planning, Computer-Assistedintrafraction monitoringSRSsurface imaging

Identifiers

PMID30548795
PMCPMC6333181

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LicenceCC BY
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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.