Evidence map›Paper›PMID 30003997›Full record

ArticleInternational journal of radiation oncology, biology, physics2018

Early Changes in Serial CBCT-Measured Parotid Gland Biomarkers Predict Chronic Xerostomia After Head and Neck Radiation Therapy.

Benjamin S Rosen, Peter G Hawkins, Daniel F Polan, James M Balter, Kristy K Brock, Justin D Kamp, Christina M Lockhart, Avraham Eisbruch, Michelle L Mierzwa, Randall K Ten Haken and 1 more

Abstract read
In one paragraph

Article in International journal of radiation oncology, biology, physics, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 40 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
40citing papers in PubMed, 3 pooled it
–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

40 citing papers in PubMed, 3 syntheses or guidelines pooled it.

  1. Pooled it
  2. Pooled it
  3. Pooled it
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  13. Review
  14. Artificial Intelligence in Head and Neck Surgery.Otolaryngologic clinics of North America · 2024
    Review
  15. Review
  16. Article
  17. Article
  18. Article
  19. Current Role of Delta Radiomics in Head and Neck Oncology.International journal of molecular sciences · 2023
    Review
  20. 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

11 authors.

Benjamin S RosenDepartment of Radiation Oncology, Michigan Medicine, University of Michigan, Ann Arbor, Michigan. Electronic address: rosenbs@med.umich.edu.
Peter G HawkinsDepartment of Radiation Oncology, Michigan Medicine, University of Michigan, Ann Arbor, Michigan.
Daniel F PolanDepartment of Radiation Oncology, Michigan Medicine, University of Michigan, Ann Arbor, Michigan.
James M BalterDepartment of Radiation Oncology, Michigan Medicine, University of Michigan, Ann Arbor, Michigan.
Kristy K BrockDepartment of Imaging Physics, Division of Diagnostic Imaging, The University of Texas MD Anderson Cancer Center, Houston, Texas.
Justin D KampDepartment of Radiation Oncology, Michigan Medicine, University of Michigan, Ann Arbor, Michigan.
Christina M LockhartDepartment of Radiation Oncology, Michigan Medicine, University of Michigan, Ann Arbor, Michigan.
Avraham EisbruchDepartment of Radiation Oncology, Michigan Medicine, University of Michigan, Ann Arbor, Michigan.
Michelle L MierzwaDepartment of Radiation Oncology, Michigan Medicine, University of Michigan, Ann Arbor, Michigan.
Randall K Ten HakenDepartment of Radiation Oncology, Michigan Medicine, University of Michigan, Ann Arbor, Michigan.
Issam El NaqaDepartment of Radiation Oncology, Michigan Medicine, University of Michigan, Ann Arbor, Michigan.

Funding

TREATMENT VERIFICATION AND TREATMENT PLAN REFINEMENTP01CA059827 · NCI · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI KESSLER, MARC LEWIS, LAWRENCE, THEODORE S · 1993 to 2018
$37.9M
Functional imaging-directed adaptive therapy of head and neck cancerR01CA184153 · NCI · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI CAO, YUE · 2015 to 2019
$2.4M
NCI NIH HHS P01 CA059827NCI NIH HHS R01 CA184153
6 · The paper itself

Abstract

purposeTo determine whether serial cone beam computed tomography (CBCT) images taken during head and neck radiation therapy (HNR) can improve chronic xerostomia prediction. METHODS AND MATERIALS: In a retrospective analysis, parotid glands (PGs) were delineated on daily kV CBCT images using deformable image registration for 119 HNR patients (60 or 70 Gy in 2 Gy fractions over 6 or 7 weeks). Deformable image registration accuracy for a subset of deformed contours was quantified using the Dice similarity coefficient and mean distance to agreement in comparison with manually drawn contours. Average weekly changes in CBCT-measured mean Hounsfield unit intensity and volume were calculated for each PG relative to week 1. Dose-volume histogram statistics were extracted from each plan, and interactions among dose, volume, and intensity were investigated. Univariable analysis and penalized logistic regression were used to analyze association with observer-rated xerostomia at 1 year after HNR. Models including CBCT delta imaging features were compared with clinical and dose-volume histogram-only models using area under the receiver operating characteristic curve (AUC) for grade ≥1 and grade ≥2 xerostomia prediction.

resultsAll patients experienced end-treatment PG volume reduction with mean (range) ipsilateral and contralateral PG shrinkage of 19.6% (0.9%-58.4%) and 17.7% (4.4%-56.3%), respectively. Midtreatment volume change was highly correlated with mean PG dose (r = -0.318, P < 1e

conclusionsThe rate of CBCT-measured PG image feature changes improves prediction over dose alone for chronic xerostomia prediction. Analysis of CBCT images acquired for treatment positioning may provide an inexpensive monitoring system to support toxicity-reducing adaptive radiation therapy.

Indexed as

AgedBiomarkersChronic DiseaseCone-Beam Computed TomographyDose-Response Relationship, RadiationFemaleHead and Neck NeoplasmsHumansLogistic ModelsMaleMiddle AgedParotid GlandRadiotherapy DosageRetrospective StudiesXerostomiaBiomarkers

Identifiers

PMID30003997
PMCPMC6411287

What OpenQuestion holds

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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.