Magnetic resonance assessment of fetal lung maturity: comparison between signal intensity and volume measurement.
Purpose: We evaluated the associations between gestational age (GA) and lung-to-liver signal intensity ratio (LLSIR) and fetal lung volume (FLV) using magnetic resonance imaging (MRI). Moreover, we evaluated the reproducibility of these measurements.Materials and Methods: LLSIR and FLV were measured...
| Published in: | Japanese Journal of Radiology Vol. 36; no. 7; pp. 444 - 450 |
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| Main Authors: | , , , , , |
| Format: | research Journal Article |
| Published: |
Springer Nature
Jul2018
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| Online Access: | View this record in EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=130275517&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 130275517 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 18671071 AUCM jtl: Japanese Journal of Radiology issn: 18671071 maglogo: N pubinfo: dt: Jul2018 vid: 36 iid: 7 pid: 237 pub: Springer Nature place: New York, New York artinfo: ui: 130275517 130275517 NLM29767297 130275517 10.1007/s11604-018-0745-0 NLM29767297 130275517 ppf: 444 ppct: 6 formats: fmt: – @attributes: type: T – @attributes: type: P tig: atl: Magnetic resonance assessment of fetal lung maturity: comparison between signal intensity and volume measurement. aug: au: Ogawa, Ryo Kido, Tomoyuki Nakamura, Masashi Kido, Teruhito Mochizuki, Teruhito Sugiyama, Takashi affil: Department of Radiology, Ehime University Graduate School of Medicine, Shitsukawa, 791-0295, Toon, Ehime, Japan sug: subj: Magnetic Resonance Imaging Methods Lung Anatomy and Histology Lung Embryology Female Reproducibility of Results Liver Body Weights and Measures Gestational Age Liver Embryology Retrospective Design Liver Anatomy and Histology Human Lung Pregnancy Validation Studies Comparative Studies Evaluation Research Multicenter Studies Clinical Assessment Tools Female ab: Purpose: We evaluated the associations between gestational age (GA) and lung-to-liver signal intensity ratio (LLSIR) and fetal lung volume (FLV) using magnetic resonance imaging (MRI). Moreover, we evaluated the reproducibility of these measurements.Materials and Methods: LLSIR and FLV were measured using single-shot fast spin-echo MRI in 88 consecutive fetuses. The Spearman test was used to assess the relationships between (1) LLSIR and GA, and (2) FLV and GA in 81 fetuses without lung abnormalities. Intra- and inter-observer reliabilities were assessed using intra-class correlation coefficients (ICCs).Results: Overall, GA and LLSIR were significantly correlated (r = 0.62, p < 0.001). However, GA and LLSIR were only significantly correlated during the third trimester (before third trimester: r = 0.39, p = 0.08; during third trimester: r = 0.46, p < 0.001). Overall, GA and FLV were significantly correlated (r = 0.72, p < 0.001). FLV was significantly correlated with GA before (r = 0.86, p < 0.001) and during the third trimester (r = 0.47, p < 0.001). All ICCs were above 0.90.Conclusions: LLSIR and FLV are useful for the assessment of fetal lung maturity and are highly reproducible. Before the third trimester, FLV is more suitable than LLSIR for the evaluation of fetal lung maturity. pubtype: Academic Journal doctype: research Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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