Evidence map›Paper›PMID 32333146›Full record

ArticleEuropean radiology2020

Respiratory motion-resolved four-dimensional zero echo time (4D ZTE) lung MRI using retrospective soft gating: feasibility and image quality compared with 3D ZTE.

Kyungsoo Bae, Kyung Nyeo Jeon, Moon Jung Hwang, Joon Sung Lee, Sung Eun Park, Ho Cheol Kim, Anne Menini

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Article in European radiology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

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19citing papers in PubMed
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1 · What the graph read from it

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3 · Its place in the literature

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19 citing papers in PubMed.

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  13. MR imaging of the airways.The British journal of radiology · 2023
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4 · The record

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5 · Who and what money

Authors and funding

7 authors.

Kyungsoo BaeDepartment of Radiology, Institute of Health Sciences, School of Medicine, Gyeongsang National University, Jinju, South Korea.
Kyung Nyeo JeonDepartment of Radiology, Institute of Health Sciences, School of Medicine, Gyeongsang National University, Jinju, South Korea. knjeon@gnu.ac.kr.
Moon Jung HwangGeneral Electric (GE) Healthcare Korea, Seoul, South Korea.
Joon Sung LeeGeneral Electric (GE) Healthcare Korea, Seoul, South Korea.
Sung Eun ParkDepartment of Radiology, Institute of Health Sciences, School of Medicine, Gyeongsang National University, Jinju, South Korea.
Ho Cheol KimDepartment of Internal Medicine, School of Medicine, Gyeongsang National University, Jinju, South Korea.
Anne MeniniApplied Science Lab, GE Healthcare, Menlo Park, CA, USA.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesTo evaluate the feasibility and image quality of respiratory motion-resolved 4D zero echo time (ZTE) lung MRI compared with that of 3D ZTE.

methodsOur institutional review board approved this study. Twenty-one patients underwent lung scans using 3D ZTE and 4D ZTE sequences via prospective and retrospective soft gating techniques, respectively. Image qualities of 3D ZTE and 4D ZTE at end-expiration were compared through objective and subjective assessments. The quality of end-expiratory images of 3D ZTE and 4D ZTE of the two groups with different lung functions was also compared.

resultsImages were successfully acquired in all patients without any adverse events. Signal-to-noise ratios (SNRs) of lung parenchyma and thoracic structures were significantly (all p < 0.001) higher in 4D ZTE. Contrast-to-noise ratios (CNRs) of peripheral bronchi, peripheral pulmonary vessels, and nodules or masses were significantly (all p < 0.001) higher in 4D ZTE. The subjective image quality assessed by two independent radiologists showed that intrapulmonary structures, noise and artifacts, and overall acceptability were superior in 4D ZTE (all p < 0.001). Image qualities of groups with normal and low lung functions differed significantly (all p < 0.05) in 3D ZTE, but not in 4D ZTE. The mean acquisition time was 136 s (127-143 s) in 3D ZTE and 325 s (308-352 s) in 4D ZTE.

conclusionsRespiratory motion-resolved 4D ZTE lung imaging was feasible as part of routine chest MRI. The 4D ZTE provides motion-robust lung parenchymal images with better SNR and CNR than the 3D ZTE, regardless of patients' lung function. KEY POINTS: • ZTE MRI captures rapidly decaying transverse magnetization in the lung parenchyma. • 4D ZTE provides motion-robust lung parenchymal images with better SNR and CNR compared with 3D ZTE. • Compared with 3D ZTE, the image quality of 4D ZTE lung MRI was affected less by patients' lung function and respiratory performance.

Indexed as

AdultAgedAged, 80 and overArtifactsFeasibility StudiesFemaleHumansImaging, Three-DimensionalLungMagnetic Resonance ImagingMaleMiddle AgedMotionProspective StudiesRespirationRespiratory-Gated Imaging TechniquesCine MRILungMagnetic resonance imagingOrgan motionRespiration

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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.