Evidence map›Paper›PMID 35906957›Full record

ArticleMedical physics2022

Real-time B

Austen N Curcuru, Taeho Kim, Deshan Yang, H Michael Gach

Abstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Medical physics, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing 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

1 citing paper in PubMed.

  1. Review
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

4 authors.

Austen N CurcuruDepartment of Biomedical Engineering, Washington University in St. Louis, St. Louis, Missouri, USA.
Taeho KimDepartment of Radiation Oncology, Washington University in St. Louis, St. Louis, Missouri, USA.
Deshan YangDepartment of Radiation Oncology, Duke University School of Medicine, Durham, North Carolina, USA.
H Michael GachDepartments of Radiation Oncology, Radiology, and Biomedical Engineering, Washington University in St. Louis, St. Louis, Missouri, USA.

Funding

Novel imaging and treatment technologies for image-guided noninvasive stereotactic cardiac radiosurgeryR01HL148210 · NHLBI · WASHINGTON UNIVERSITY · PI GACH, H MICHAEL, YANG, DESHAN · 2019 to 2022
$1.7M
NHLBI NIH HHS R01 HL148210
6 · The paper itself

Abstract

backgroundRotation of the ferromagnetic gantry of a low magnetic field MRI-Linac was previously demonstrated to cause large center frequency offsets of ±400 Hz. The B PURPOSE: The purpose of this study was to measure and compensate for center frequency offsets in real time during gantry rotation on a 0.35-T MRI-Linac using a free induction decay (FID) navigator.

methodsA nonselective FID navigator was added before each 2D balanced steady-state free precession cine image acquisition on a 0.35-T MRI-Linac. Images were acquired at 7.3 frames per second. Phase data from the initial FID navigator (while the gantry was stationary) was used as a reference. The phase data from each subsequent FID navigator was used to calculate the real-time B

resultsThe duration of the FID navigator and processing was 4.5 ms. The FID navigator resulted in a ≤11% drop in SNR in the phantom and in vivo (liver). Dice coefficients from the MRI-guided radiation therapy (MR-IGRT) phantom contour measurements remained above 0.8 with B

conclusionDynamic real-time B

Indexed as

Magnetic Resonance ImagingParticle AcceleratorsHumansPhantoms, ImagingRetrospective StudiesRotationB0 fluctuationsgantry rotationMRI-Linacreal-time compensationsteady-state free precession

Identifiers

PMID35906957
PMCPMC11416049

What OpenQuestion holds

Textmetadata
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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.