Evidence map›Paper›PMID 26279025›Full record

ArticleInternational journal of radiation oncology, biology, physics2015

Effects of Surgery and Proton Therapy on Cerebral White Matter of Craniopharyngioma Patients.

Jinsoo Uh, Thomas E Merchant, Yimei Li, Xingyu Li, Noah D Sabin, Daniel J Indelicato, Robert J Ogg, Frederick A Boop, John A Jane, Chiaho Hua

Abstract read
In one paragraph

Article in International journal of radiation oncology, biology, physics, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
1.7field-weighted citation impact, top 16% 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

13 citing papers in PubMed, 23 citations in OpenAlex.

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  9. Spectrum of neuroimaging findings post-proton beam therapy in a large pediatric cohort.Child's nervous system : ChNS : official journal of the International Society for Pediatric Neurosurgery · 2021
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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

10 authors at 4 institutions in 1 country.

Jinsoo UhDepartment of Radiological Sciences, St Jude Children's Research Hospital, Memphis, Tennessee. Electronic address: jinsoo.uh@stjude.org.
Thomas E MerchantDepartment of Radiological Sciences, St Jude Children's Research Hospital, Memphis, Tennessee.
Yimei LiDepartment of Biostatistics, St Jude Children's Research Hospital, Memphis, Tennessee.
Xingyu LiDepartment of Biostatistics, St Jude Children's Research Hospital, Memphis, Tennessee.
Noah D SabinDepartment of Radiological Sciences, St Jude Children's Research Hospital, Memphis, Tennessee.
Daniel J IndelicatoDepartment of Radiation Oncology, University of Florida, Jacksonville, Florida.
Robert J OggDepartment of Radiological Sciences, St Jude Children's Research Hospital, Memphis, Tennessee.
Frederick A BoopSemmes-Murphey Neurologic and Spine Institute, Memphis, Tennessee.
John A JaneDepartment of Neurosurgery, University of Virginia, Charlottesville, Virginia.
Chiaho HuaDepartment of Radiological Sciences, St Jude Children's Research Hospital, Memphis, Tennessee.
St. Jude Children's Research Hospital · USSemmes Murphey Foundation · USUniversity of Florida · USUniversity of Virginia · US

Funding

Viral Vector Technology (VVTSR)P30CA021765 · NCI · ST. JUDE CHILDREN'S RESEARCH HOSPITAL · PI CHARLES ROBERTS · 1985 to 2026
$166.9M
NCI NIH HHS P30 CA021765
6 · The paper itself

Abstract

purposeThe purpose of this study was to determine radiation dose effect on the structural integrity of cerebral white matter in craniopharyngioma patients receiving surgery and proton therapy. METHODS AND MATERIALS: Fifty-one patients (2.1-19.3 years of age) with craniopharyngioma underwent surgery and proton therapy in a prospective therapeutic trial. Anatomical magnetic resonance images acquired after surgery but before proton therapy were inspected to identify white matter structures intersected by surgical corridors and catheter tracks. Longitudinal diffusion tensor imaging (DTI) was performed to measure microstructural integrity changes in cerebral white matter. Fractional anisotropy (FA) derived from DTI was statistically analyzed for 51 atlas-based white matter structures of the brain to determine radiation dose effect. FA in surgery-affected regions in the corpus callosum was compared to that in its intact counterpart to determine whether surgical defects affect radiation dose effect.

resultsSurgical defects were seen most frequently in the corpus callosum because of transcallosal resection of tumors and insertion of ventricular or cyst catheters. Longitudinal DTI data indicated reductions in FA 3 months after therapy, which was followed by a recovery in most white matter structures. A greater FA reduction was correlated with a higher radiation dose in 20 white matter structures, indicating a radiation dose effect. The average FA in the surgery-affected regions before proton therapy was smaller (P=.0001) than that in their non-surgery-affected counterparts with more intensified subsequent reduction of FA (P=.0083) after therapy, suggesting that surgery accentuated the radiation dose effect.

conclusionsDTI data suggest that mild radiation dose effects occur in patients with craniopharyngioma receiving surgery and proton therapy. Surgical defects present at the time of proton therapy appear to accentuate the radiation dose effect longitudinally. This study supports consideration of pre-existing surgical defects and their locations in proton therapy planning and studies of treatment effect.

Indexed as

Proton TherapyAdolescentChildChild, PreschoolCorpus CallosumCraniopharyngiomaDiffusion Tensor ImagingFemaleHumansMalePituitary NeoplasmsRadiation DosageWhite MatterYoung Adult

Identifiers

PMID26279025
PMCPMC5144582
OpenAlexW2149222869

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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.