Evidence map›Paper›PMID 41795915›Full record

ArticleMagnetic resonance in medical sciences : MRMS : an official journal of Japan Society of Magnetic Resonance in Medicine2026

Respiratory-gating Reduces Motion Artifacts Due to Uterine Displacement in T2-weighted MR Imaging of the Female Pelvis.

Hironobu Ishikawa, Masahiko Monma, Yoshiyuki Ishimori, Kousaku Saotome, Shiro Ishii, Hirofumi Sekino, Ryo Yamakuni, Takeyasu Kakamu, Daisuke Oura, Yuma Takahashi and 3 more

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Article in Magnetic resonance in medical sciences : MRMS : an official journal of Japan Society of 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.

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1 · What the graph read from it

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4 · The record

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5 · Who and what money

Authors and funding

13 authors.

Hironobu IshikawaDepartment of Radiology, Fukushima Medical University Hospital, Fukushima, Fukushima, Japan.
Masahiko MonmaDepartment of Radiological Sciences, Ibaraki Prefectural University Graduate School, Ami, Ibaraki, Japan.
Yoshiyuki IshimoriDepartment of Radiological Sciences, Ibaraki Prefectural University Graduate School, Ami, Ibaraki, Japan.
Kousaku SaotomeDepartment of Radiological Sciences, Ibaraki Prefectural University Graduate School, Ami, Ibaraki, Japan.
Shiro IshiiDepartment of Radiology and Nuclear Medicine, Fukushima Medical University School of Medicine, Fukushima, Fukushima, Japan.
Hirofumi SekinoDepartment of Radiology and Nuclear Medicine, Fukushima Medical University School of Medicine, Fukushima, Fukushima, Japan.
Ryo YamakuniDepartment of Radiology and Nuclear Medicine, Fukushima Medical University School of Medicine, Fukushima, Fukushima, Japan.
Takeyasu KakamuDepartment of Hygiene and Preventive Medicine, Fukushima Medical University School of Medicine, Fukushima, Fukushima, Japan.
Daisuke OuraDepartment of Radiology, Otaru General Hospital, Otaru, Hokkaido, Japan.
Yuma TakahashiDepartment of Radiology, Fukushima Medical University Hospital, Fukushima, Fukushima, Japan.
Shinya SeinoDepartment of Radiology, Fukushima Medical University Hospital, Fukushima, Fukushima, Japan.
Masanori YusaDepartment of Radiology, Fukushima Medical University Hospital, Fukushima, Fukushima, Japan.
Hiroshi ItoDepartment of Radiology and Nuclear Medicine, Fukushima Medical University School of Medicine, Fukushima, Fukushima, Japan.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeThis study aimed to assess the potential enhancement of image quality in fast-spin-echo T2-weighted images (FSE-T2WI) with respiratory-gating compared to conventional FSE-T2WI and to clarify how abdominal wall motion affects uterine displacement and consequently impacts image quality.

methodsOne hundred and three women who underwent pelvic MRI using a 3T-MRI scanner were enrolled. FSE-T2WI with and without respiratory-gating was visually assessed for motion-related artifacts, and the image quality was categorized as poor, moderate, or excellent. The uterus was classified as type 1 (on the bladder), type 2 (not on the bladder and not retroflexed), or type 3 (uterus contacting the vertebrae or a retroflexed uterus). The relationships (1) between the abdominal wall and uterine displacements, (2) between the quality of FSE-T2WI with and without respiratory-gating and uterine displacement, and (3) between uterine displacement and types were investigated.

resultsRespiratory-gated FSE-T2WI achieved better overall image quality, with poor, moderate, and excellent ratings observed in 27, 44, and 32 patients, respectively, compared with 53, 34, and 16 patients for conventional FSE-T2WI. Improvement with respiratory-gating was observed in 43 patients, particularly in those with type 1 and type 2 uteri, whereas only 8 patients showed decreased image quality. A strong correlation was found between abdominal wall and uterine displacements (P < 0.001), indicating that uterine motion is largely driven by respiration. The amplitude of uterine displacement was significantly smaller in type 3 uteri (P < 0.05), consistent with fewer motion-related artifacts.

conclusionRespiratory-gated FSE-T2WI effectively reduces motion artifacts caused by respiratory-induced uterine displacement, particularly in type 1 and type 2 uteri where displacement is pronounced.

Indexed as

ArtifactsMagnetic Resonance ImagingPelvisRespiratory-Gated Imaging TechniquesUterusAdultAgedAged, 80 and overFemaleHumansImage EnhancementMiddle AgedMotionfemale pelvismagnetic resonance imagingmotion artifactsrespiratory gatingT2-weighted image

Identifiers

PMID41795915
PMCPMC13485487

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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.