Evidence map›Paper›PMID 34777836›Full record

ArticleNeuro-oncology practice2021

Impact of MRI timing on tumor volume and anatomic displacement for brain metastases undergoing stereotactic radiosurgery.

Tugce Kutuk, Ranjini Tolakanahalli, Andre Williams, Martin C Tom, Jason D Vadhan, Haley Appel, Matthew D Hall, D Jay J Wieczorek, Stephen Davis, Michael W McDermott and 4 more

Abstract read
In one paragraph

Article in Neuro-oncology practice, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed, 1 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

13 citing papers in PubMed, 1 synthesis or guideline pooled it.

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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

14 authors.

Tugce KutukDepartment of Radiation Oncology, Miami Cancer Institute, Baptist Health South Florida, Miami, Florida, USA.
Ranjini TolakanahalliDepartment of Radiation Oncology, Miami Cancer Institute, Baptist Health South Florida, Miami, Florida, USA.
Andre WilliamsDepartment of Clinical Informatics, Miami Cancer Institute, Baptist Health South Florida, Miami, Florida, USA.
Martin C TomDepartment of Radiation Oncology, Miami Cancer Institute, Baptist Health South Florida, Miami, Florida, USA.
Jason D VadhanDepartment of Radiation Oncology, Miami Cancer Institute, Baptist Health South Florida, Miami, Florida, USA.
Haley AppelDepartment of Radiation Oncology, Miami Cancer Institute, Baptist Health South Florida, Miami, Florida, USA.
Matthew D HallDepartment of Radiation Oncology, Miami Cancer Institute, Baptist Health South Florida, Miami, Florida, USA.
D Jay J WieczorekDepartment of Radiation Oncology, Miami Cancer Institute, Baptist Health South Florida, Miami, Florida, USA.
Stephen DavisDepartment of Radiation Oncology, Miami Cancer Institute, Baptist Health South Florida, Miami, Florida, USA.
Michael W McDermottHerbert Wertheim College of Medicine, Florida International University, Miami, Florida, USA.
Manmeet S AhluwaliaHerbert Wertheim College of Medicine, Florida International University, Miami, Florida, USA.
Minesh P MehtaDepartment of Radiation Oncology, Miami Cancer Institute, Baptist Health South Florida, Miami, Florida, USA.
Alonso N GutierrezDepartment of Radiation Oncology, Miami Cancer Institute, Baptist Health South Florida, Miami, Florida, USA.
Rupesh KotechaDepartment of Radiation Oncology, Miami Cancer Institute, Baptist Health South Florida, Miami, Florida, USA.ORCID https://orcid.org/0000-0001-6927-0402

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe objective of this study was to evaluate the impact of the time interval between planning imaging and stereotactic radiosurgery (SRS) delivery on tumor volumes and spatial anatomic displacements of brain metastases (BM).

methodsConsecutive patients diagnosed with BM treated with SRS over a 3-year period were evaluated. Only patients who underwent an institutionally standardized diagnostic MRI (MRI-1) and a treatment planning MRI (MRI-2) were included. The impact of histology, inter-scan time interval, lesion location, tumor volume, and diameter were evaluated on final lesion diameter, volume, anatomic displacement, and ultimate need for change in management (ie, expanding margins, rescanning).

results101 patients (531 lesions) with a median inter-scan time interval of 8 days (range: 1-42 days) met the inclusion criteria. The median percentage increase in BM diameter and volume were 9.5% (IQR: 2.25%-24.0%) and 20% (IQR: 0.7%-66.7%). Overall, 147 lesions (27.7%) in 57 patients (56.4%) required a change in management. There was a statistically significant relationship between initial tumor diameter (cm) and change in management (OR: 2.69, 95% CI: 1.93-3.75;

conclusionsChanges in tumor diameter, volume, and spatial position occur as a function of time. Planning imaging for SRS is recommended to occur in close temporal proximity to treatment; for those with delays, a larger setup margin may need to be used to ensure tumor coverage and account for positional changes.

Indexed as

brain metastasisMRI timingradiosurgerySRStumor dynamics

Identifiers

PMID34777836
PMCPMC8579090

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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.