Journal of Magnetic Resonance Imaging
SCIE-ISI SCOPUS (SonsInc.)
1522-2586
1053-1807
Mỹ
Cơ quản chủ quản: WILEY , John Wiley & Sons Inc.
Lĩnh vực:
Radiology, Nuclear Medicine and Imaging
Các bài báo tiêu biểu
Diffusion tensor imaging: Concepts and applicationsAbstract The success of diffusion magnetic resonance imaging (MRI) is deeply rooted in the powerful concept that during their random, diffusion‐driven displacements molecules probe tissue structure at a microscopic scale well beyond the usual image resolution. As diffusion is truly a three‐dimensional process, molecular mobility in tissues may be anisotropic, as in ... ... hiện toàn bộ
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4D flow MRIAbstract Traditionally, magnetic resonance imaging (MRI) of flow using phase contrast (PC) methods is accomplished using methods that resolve single‐directional flow in two spatial dimensions (2D) of an individual slice. More recently, three‐dimensional (3D) spatial encoding combined with three‐directional velocity‐encoded phase contrast MRI (here termed 4D flow MRI... ... hiện toàn bộ
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Một khuôn khổ cho chỉ số xác suất kết nối dựa trên dòng chảy (PICo) thông qua việc giải thích cấu trúc của các phép đo khuếch tán MRI Dịch bởi AI Tóm tắt Mục đích: Thiết lập một phương pháp tổng quát để định lượng các phương pháp theo dõi sợi dựa trên dòng chảy về xác suất kết nối giữa các điểm và/hoặc các vùng. Nguyên liệu và Phương pháp: Phương pháp dòng chảy thường được sử dụng được điều chỉnh để tận dụng sự khôn...
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Osteoporosis is associated with increased marrow fat content and decreased marrow fat unsaturation: A proton MR spectroscopy studyAbstract Purpose To use proton magnetic resonance spectroscopy (1 H‐MRS) to evaluate vertebral marrow fat, and to determine whether bone density correlates with fat content and fat unsaturation levels in postmenopausal women. Materials and Methods Fifty...
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Encoding strategies for three‐direction phase‐contrast MR imaging of flowAbstract Three encoding strategies for the measurement of flow velocities in arbitrary directions with phase‐contrast magnetic resonance imaging are presented; their noise and dynamic range performance are compared by means of theoretical analysis and computer simulation. A six‐point measurement strategy is shown to be quite inefficient in terms of velocity variance... ... hiện toàn bộ
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Nephrotoxicity of high‐dose gadolinium compared with iodinated contrastAbstract To determine if high‐dose gadolinium chelates are less nephrotoxic than iodinated contrast. Records of 342 patients who had received high‐dose gadolinium (.2 to .4 mmol/kg) for magnetic resonance imaging were reviewed to identify patients who had also received iodinated contrast for radiographic examinations. Their clinical course and laboratory data were r... ... hiện toàn bộ
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Proton MR spectroscopy in quantitative in vivo determination of fat content in human liver steatosisAbstract To demonstrate that the lipid volume fraction In liver steatosis can be accurately estimated with in vivo hydrogen‐1 magnetic resonance (MR) spectroscopy, the authors developed a calibration procedure based on in vitro MR spectroscopy of lipid extracts from steatotlc liver specimens. The lipid volume fractions determined with the calibration procedure were ... ... hiện toàn bộ
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Time‐resolved 3D MR velocity mapping at 3T: Improved navigator‐gated assessment of vascular anatomy and blood flowAbstract Purpose To evaluate an improved image acquisition and data‐processing strategy for assessing aortic vascular geometry and 3D blood flow at 3T. Materials and Methods In a study with five normal volunteers and seven patients with known aortic pathology, prospectivel...
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Semiautomated method for noise reduction and background phase error correction in MR phase velocity dataAbstract Background phase distortion and random noise can adversely affect the quality of magnetic resonance (MR) phase velocity measurements. A semiauto‐mated method has been developed that substantially reduces both effects. To remove the background phase distortion, the following steps were taken: The time standard deviations of the phase velocity images over a c... ... hiện toàn bộ
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Report on a multicenter fMRI quality assurance protocolAbstract Temporal stability during an fMRI acquisition is very important because the blood oxygen level‐dependent (BOLD) effects of interest are only a few percent in magnitude. Also, studies involving the collection of groups of subjects over time require stable scanner performance over days, weeks, months, and even years. We describe a protocol designed by one of ... ... hiện toàn bộ
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