دورية أكاديمية
أعرض في EDS

Retrospective respiratory self-gating and removal of bulk motion in pulmonary UTE MRI of neonates and adults.

التفاصيل البيبلوغرافية
العنوان: Retrospective respiratory self-gating and removal of bulk motion in pulmonary UTE MRI of neonates and adults.
المؤلفون: Higano NS; Center for Pulmonary Imaging Research, Division of Pulmonary Medicine and Department of Radiology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA.; Department of Physics, Washington University in St. Louis, St. Louis, Missouri, USA., Hahn AD; Department of Medical Physics, University of Wisconsin-Madison, Madison, Wisconsin, USA., Tkach JA; Department of Radiology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA., Cao X; Center for Pulmonary Imaging Research, Division of Pulmonary Medicine and Department of Radiology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA.; Department of Physics, University of Cincinnati, Cincinnati, Ohio, USA., Walkup LL; Center for Pulmonary Imaging Research, Division of Pulmonary Medicine and Department of Radiology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA., Thomen RP; Center for Pulmonary Imaging Research, Division of Pulmonary Medicine and Department of Radiology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA.; Department of Physics, Washington University in St. Louis, St. Louis, Missouri, USA., Merhar SL; Division of Neonatology and Pulmonary Biology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA., Kingma PS; Division of Neonatology and Pulmonary Biology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA., Fain SB; Department of Medical Physics, University of Wisconsin-Madison, Madison, Wisconsin, USA.; Department of Radiology, University of Wisconsin-Madison, Madison, Wisconsin, USA., Woods JC; Center for Pulmonary Imaging Research, Division of Pulmonary Medicine and Department of Radiology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA.; Department of Physics, Washington University in St. Louis, St. Louis, Missouri, USA.; Department of Radiology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA.
المصدر: Magnetic resonance in medicine [Magn Reson Med] 2017 Mar; Vol. 77 (3), pp. 1284-1295. Date of Electronic Publication: 2016 Mar 12.
نوع المنشور: Evaluation Study; Journal Article
اللغة: English
بيانات الدورية: Publisher: Wiley Country of Publication: United States NLM ID: 8505245 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1522-2594 (Electronic) Linking ISSN: 07403194 NLM ISO Abbreviation: Magn Reson Med Subsets: MEDLINE
أسماء مطبوعة: Publication: 1999- : New York, NY : Wiley
Original Publication: San Diego : Academic Press,
مواضيع طبية MeSH: Artifacts*, Bronchopulmonary Dysplasia/*diagnostic imaging , Hernia, Diaphragmatic/*diagnostic imaging , Image Enhancement/*methods , Lung/*diagnostic imaging , Magnetic Resonance Imaging/*methods , Respiratory-Gated Imaging Techniques/*methods, Adult ; Algorithms ; Female ; Humans ; Image Interpretation, Computer-Assisted/methods ; Imaging, Three-Dimensional/methods ; Infant, Newborn ; Male ; Motion ; Reproducibility of Results ; Respiratory Mechanics ; Retrospective Studies ; Sensitivity and Specificity ; Subtraction Technique
مستخلص: Purpose: To implement pulmonary three-dimensional (3D) radial ultrashort echo-time (UTE) MRI in non-sedated, free-breathing neonates and adults with retrospective motion tracking of respiratory and intermittent bulk motion, to obtain diagnostic-quality, respiratory-gated images.
Methods: Pulmonary 3D radial UTE MRI was performed at 1.5 tesla (T) during free breathing in neonates and adult volunteers for validation. Motion-tracking waveforms were obtained from the time course of each free induction decay's initial point (i.e., k-space center), allowing for respiratory-gated image reconstructions that excluded data acquired during bulk motion. Tidal volumes were calculated from end-expiration and end-inspiration images. Respiratory rates were calculated from the Fourier transform of the motion-tracking waveform during quiet breathing, with comparison to physiologic prediction in neonates and validation with spirometry in adults.
Results: High-quality respiratory-gated anatomic images were obtained at inspiration and expiration, with less respiratory blurring at the expense of signal-to-noise for narrower gating windows. Inspiration-expiration volume differences agreed with physiologic predictions (neonates; Bland-Altman bias = 6.2 mL) and spirometric values (adults; bias = 0.11 L). MRI-measured respiratory rates compared well with the observed rates (biases = -0.5 and 0.2 breaths/min for neonates and adults, respectively).
Conclusions: Three-dimensional radial pulmonary UTE MRI allows for retrospective respiratory self-gating and removal of intermittent bulk motion in free-breathing, non-sedated neonates and adults. Magn Reson Med 77:1284-1295, 2017. © 2016 International Society for Magnetic Resonance in Medicine.
(© 2016 International Society for Magnetic Resonance in Medicine.)
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معلومات مُعتمدة: P01 HL070831 United States HL NHLBI NIH HHS; T32 CA009206 United States CA NCI NIH HHS; T32 HL007752 United States HL NHLBI NIH HHS; UL1 TR001425 United States TR NCATS NIH HHS
فهرسة مساهمة: Keywords: 3D radial; lung MRI; neonatal; retrospective motion tracking; self-gating; ultrashort echo time
تواريخ الأحداث: Date Created: 20160315 Date Completed: 20171226 Latest Revision: 20191210
رمز التحديث: 20221213
مُعرف محوري في PubMed: PMC5018908
DOI: 10.1002/mrm.26212
PMID: 26972576
قاعدة البيانات: MEDLINE
الوصف
تدمد:1522-2594
DOI:10.1002/mrm.26212