Accelerated Mr Imaging with Spread Spectrum Encoding
نویسندگان
چکیده
G. Puy, J. Marques, R. Gruetter, J-P. Thiran, D. Van De Ville, P. Vandergheynst, and Y. Wiaux Institute of Electrical Engineering, Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland, Institute of the Physics of Biological Systems, Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland, Department of Radiology, University of Lausanne (UNIL), Lausanne, Switzerland, Institute of Bioengineering, Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland, Department of Radiology and Medical Informatics, University of Geneva (UniGE), Geneva, Switzerland
منابع مشابه
Comparison of 1-d and 2-d surface coil arrays for accelerated volume MR imaging using sensitivity encoding
The optimum phased array combined SNR (B1weighted) [5] and SENSE g-factor were computed for various coil geometries and imaging plane orientations based on simulated field maps. Magnetic fields (B1-maps) for each coil were calculated using the Biot-Savart law. The sample noise correlations between coils which are used in calculating the optimum B1-weighted combining and SENSE g-factor [1] were ...
متن کاملI-41: Imaging Strategy for Diagnosis of Adnexal Masses Including US,CT Scan and MRI
Adnexal masses are spectrum of diseases from benign non neoplastic and neoplastic masses to malignant neoplasms. Endovaginal ultrasonography (US) is the fisrt and invaluable modality for assessment of adnexal masses because it is available and has a high negative predictive value. Important morphologic features are solid (vascularized) tissue, vascular and thick septations, and papillary projec...
متن کاملMalignant gliomas: MR imaging spectrum of radiation therapy- and chemotherapy-induced necrosis of the brain after treatment.
PURPOSE To describe both the common and less frequently encountered magnetic resonance (MR) imaging features of radiation therapy- and chemotherapy-induced brain injury, with particular emphasis on radiation necrosis. MATERIALS AND METHODS A cohort of 148 adult patients underwent surgical resection of malignant brain (glial) tumors and were subsequently entered into a research protocol that c...
متن کاملAn improved method for MRI artifact correction due to translational motion in the imaging plane
A computer postprocessing technique is developed to remove MRI artifact arising from unknown translational motion in the imaging plane. Based on previous artifact correction methods, the improved technique uses two successive steps to reduce read out and phase-encoding direction artifacts: First, the spectrum shift method is applied to remove read-out axis translational motion. Then, the phase ...
متن کاملTumefactive Brain Lesions in Patients with Neuromyelitis Optica Spectrum Disorder
Background: Neuromyelitis Optica Spectrum Disorder (NMOSD) is an autoimmune neurological disorder that is characterized by optic neuritis and longitudinally-extended transverse myelitis lesions in spinal segments. Magnetic Resonance Imaging (MRI) findings are part of the diagnostic process in NMOSD patients, and abnormal lesion patterns may cause deviation from a correct diagnosis. Clinical P...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2010