Evidence map›Paper›PMID 23740155›Full record

Trial reportStrahlentherapie und Onkologie : Organ der Deutschen Rontgengesellschaft ... [et al]2013

Three-dimensional surface scanning for accurate patient positioning and monitoring during breast cancer radiotherapy.

C Gaisberger, P Steininger, B Mitterlechner, S Huber, H Weichenberger, F Sedlmayer, H Deutschmann

Abstract readClinical Trial
PubMed Publisher
In one paragraph

Trial report in Strahlentherapie und Onkologie : Organ der Deutschen Rontgengesellschaft ... [et al], 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed, 1 pooled it
3.2field-weighted citation impact, top 9% 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

22 citing papers in PubMed, 1 synthesis or guideline pooled it, 32 citations in OpenAlex.

  1. DEGRO practical guidelines: radiotherapy of breast cancer I: radiotherapy following breast conserving therapy for invasive breast cancer.Strahlentherapie und Onkologie : Organ der Deutschen Rontgengesellschaft ... [et al] · 2013
    Guideline
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  3. Article
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  6. Variability in lymph node irradiation in patients with breast cancer-results from a multi-center survey in German-speaking countries.Strahlentherapie und Onkologie : Organ der Deutschen Rontgengesellschaft ... [et al] · 2020
    Article
  7. Article
  8. Impact of surface-guided positioning on the use of portal imaging and initial set-up duration in breast cancer patients.Strahlentherapie und Onkologie : Organ der Deutschen Rontgengesellschaft ... [et al] · 2019
    Article
  9. Article
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  15. Present state and issues in IORT Physics.Radiation oncology (London, England) · 2017
    Review
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  18. Article
  19. Article
  20. Quality of patient positioning during cerebral tomotherapy irradiation using different mask systems.Strahlentherapie und Onkologie : Organ der Deutschen Rontgengesellschaft ... [et al] · 2014
    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

7 authors at 1 institution in 1 country.

C GaisbergerDepartment of Radiotherapy and Radio-Oncology, Landeskrankenhaus Salzburg, Paracelsus Medical University Clinics, Müllner Hauptstr. 48, 5020, Salzburg, Austria, c.gaisberger@salk.at.
P Steininger
B Mitterlechner
S Huber
H Weichenberger
F Sedlmayer
H Deutschmann
Paracelsus Medical University · AT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeClinical evaluation of an optical three-dimensional surface scanning (3D-SS) system for patient positioning and monitoring during radiotherapy (RT) for breast cancer. MATERIALS AND

methodsA ceiling-mounted scanner was developed to acquire multiple 3D body surface images and tested in 14 conservatively operated breast cancer patients. A reference skin surface was derived from the planning computed tomography (CT) scan as basis for rigid registration with the surface scans. In addition to electronic portal images (EPIs), optical scans were acquired at three defined time points before and during daily RT. Patient setup was guided by laser alignments and corrected according to EPI findings. The accuracy of the 3D-SS system was validated by comparison of the optical scans to EPIs generated in parallel. Interfraction shifts were investigated by comparison of the first 3D-SS image with the reference body outline. Intrafractional motions were analysed by comparing the three daily surface scans with the first EPI.

resultsComparison of EPIs and 3D-SS images revealed good accordance (- 0.05±0.94 mm). Analysis of daily patient positions revealed average deviations of 0.4±2.4 mm laterally, 0.3±1.9 mm longitudinally and 0.2±3.3 mm vertically. After 2 weeks, a systematic interfraction shift in patient positioning was noted, particularly in the vertical direction (4.9±0.56 mm), which was attributed to patients progressively relaxing. 3D-SS images showed intrafractional shifts of 1.2±0.7 mm over a time course of 2 min.

conclusionOptical surface scanning is a simple, fast and reproducible method for breast cancer patient alignment. Particularly for more sophisticated irradiation techniques, it helps to improve accuracy in patient positioning during radiotherapy without the exposure to additional ionizing radiation.

Indexed as

AdultAgedBreast NeoplasmsFemaleHumansImaging, Three-DimensionalMiddle AgedPatient PositioningRadiotherapy DosageRadiotherapy, Image-GuidedReproducibility of ResultsSensitivity and SpecificityTomography, OpticalTreatment Outcome

Identifiers

PMID23740155
OpenAlexW2148693884

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

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.