Respiratory motion-resolved four-dimensional zero echo time (4D ZTE) lung MRI using retrospective soft gating: feasibility and image quality compared with 3D ZTE
| Autor: | Sung Eun Park, Kyung Nyeo Jeon, Kyungsoo Bae, Ho Cheol Kim, Moon Jung Hwang, Anne Menini, Joon Sung Lee |
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| Rok vydání: | 2020 |
| Předmět: |
Adult
Male medicine.medical_specialty Respiratory-Gated Imaging Techniques Image quality Signal-To-Noise Ratio 030218 nuclear medicine & medical imaging 03 medical and health sciences Motion Young Adult 0302 clinical medicine Imaging Three-Dimensional medicine Humans Radiology Nuclear Medicine and imaging Prospective Studies Lung Neuroradiology Aged Retrospective Studies Aged 80 and over medicine.diagnostic_test business.industry Echo time Respiration Respiratory motion Ultrasound Magnetic resonance imaging General Medicine respiratory system Middle Aged Thorax Magnetic Resonance Imaging medicine.anatomical_structure 030220 oncology & carcinogenesis Feasibility Studies Female Radiology business Artifacts Mean acquisition |
| Zdroj: | European radiology. 30(9) |
| ISSN: | 1432-1084 |
| Popis: | To evaluate the feasibility and image quality of respiratory motion–resolved 4D zero echo time (ZTE) lung MRI compared with that of 3D ZTE. Our 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. Images 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 |
| Databáze: | OpenAIRE |
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