Evidence map›Paper›PMID 42432860›Full record

ArticleMagnetic resonance in medicine2026

3D and 4D Free-Breathing Abdominal T1-Weighted MRI in Clinical Practice Using Deep Learning Auto-Navigation and Reconstruction.

Victor Murray, Yan Wen, Subin Erattakulangara, Oguz Akin, Richard Do, Gerald Behr, Zhigang Zhang, Arnaud Guidon, Ricardo Otazo

Abstract read
In one paragraph

Article in Magnetic resonance in medicine, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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

9 authors.

Victor MurrayDepartment of Medical Physics, Memorial Sloan Kettering Cancer Center, New York, New York, USA.ORCID https://orcid.org/0000-0002-6000-3380
Yan WenGE HealthCare, ASL East, New York, New York, USA.
Subin ErattakulangaraDepartment of Medical Physics, Memorial Sloan Kettering Cancer Center, New York, New York, USA.
Oguz AkinDepartment of Radiology, Memorial Sloan Kettering Cancer Center, New York, New York, USA.
Richard DoDepartment of Radiology, Memorial Sloan Kettering Cancer Center, New York, New York, USA.ORCID https://orcid.org/0000-0002-6554-0310
Gerald BehrDepartment of Radiology, Memorial Sloan Kettering Cancer Center, New York, New York, USA.
Zhigang ZhangDepartment of Epidemiology and Biostatistics, Memorial Sloan Kettering Cancer Center, New York, New York, USA.
Arnaud GuidonGE HealthCare, ASL East, New York, New York, USA.
Ricardo OtazoDepartment of Medical Physics, Memorial Sloan Kettering Cancer Center, New York, New York, USA.ORCID https://orcid.org/0000-0002-3782-4930

Funding

Real-time MRI-guided adaptive radiotherapy of unresectable pancreatic cancerR01CA255661 · NCI · SLOAN-KETTERING INST CAN RESEARCH · PI OTAZO, RICARDO · 2021 to 2025
$3.3M
Rapid motion-robust quantitative DCE-MRI for the assessment of gynecologic cancersR01CA244532 · NCI · SLOAN-KETTERING INST CAN RESEARCH · PI AKIN, OGUZ, OTAZO, RICARDO · 2020 to 2024
$2.9M
National Institutes of Health/National Cancer Institute R01-CA244532National Institutes of Health/National Cancer Institute R01-CA255661NCI NIH HHS R01 CA244532NCI NIH HHS R01 CA255661
6 · The paper itself

Abstract

purposeTo develop and evaluate an automated clinical prototype for a 1-min free-breathing T1-weighted 3D MRI and a 2.25-min 4D MRI utilizing radial k-space acquisition and deep learning (DL) auto-navigation and reconstruction.

methodsThe clinical prototype was deployed on 3 T GE Healthcare scanners, using the GE DISCO-Star (radial golden-angle stack-of-stars) pulse sequence, DL auto-navigation (RANGR), DL reconstruction (Movienet), and vendor-specific image processing to efficiently generate DICOM files. The system automatically collects raw data, transmits the data to an external high-performance computer, performs image reconstruction, and generates DICOM files. A customized version of the Movienet network was trained, using compressed sensing references, to achieve 2.25-fold and 2-fold acquisition acceleration for 3D and 4D MRI, respectively. The prototype was evaluated on 50 patients (ages: 8-87) with TE = 1.46-1.6 ms, TR = 3.2-3.4 ms, flip angle = 12°, in-plane resolution = 1.17-1.64 mm, and slice thickness = 4 mm. Image quality was assessed qualitatively by three expert radiologists, who compared Movienet to conventional vendor methods, followed by a statistical analysis using Wilcoxon signed-rank tests.

resultsThe Movienet prototype demonstrated remarkable efficiency, requiring only 90 s of GPU and 4 min on a CPU computation for 3D reconstruction, while exhibiting better performance, characterized by reduced streaking artifacts and about one-point improvement in image quality on a five-point scale compared to vendor technology. For 4D reconstructions, reconstruction time increased by 20 s (GPU, +1 min CPU) while maintaining comparable quality metrics. For all metrics, the differences were statistically significant (all p-values < 0.0001).

conclusionThe Movienet prototype significantly enhances motion robustness and acquisition speed in abdominal MRI, offering a transformative approach for clinical applications.

Indexed as

AbdomenDeep LearningImage Processing, Computer-AssistedImaging, Three-DimensionalMagnetic Resonance ImagingAdolescentAdultAgedAged, 80 and overAlgorithmsArtifactsChildFemaleHumansMiddle AgedRespirationabdominal MRIclinical MRI translationdeep learningdynamic MRIfast MRImotionradial k‐space

Identifiers

PMID42432860
PMCPMC13527288

What Socratic 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 Socratic graph.