[PDF] Top 20 MR Imaging of Parkinson Disease with Spin Echo and Gradient Echo Sequences
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MR Imaging of Parkinson Disease with Spin Echo and Gradient Echo Sequences
... TABLE 3: Restoration of the Signal Intensities [4] of the Substantia Nigra in Parkinson and Control Patients on Spin-Echo and Gradient-Echo Sequences Sequence: Signal Intensity Spin-echo[r] ... See full document
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Cardiovascular magnetic resonance physics for clinicians: part I
... basic MR physics introduc- tion that is tailored for clinicians using CMR in their daily ...of MR, including a description of the main components of an MR ima- ging system and the three types of ... See full document
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Comparison of spin echo MR pulse sequences for imaging of the brain
... ischemic disease (n 5 ...body MR unit, a maximal gradient field strength of 15 mT/m, a gradient rise time of ...following sequences proved to be optimal (in terms of image quality, ... See full document
9
Sagittal MR of multiple sclerosis in the spinal cord: fast versus conventional spin echo imaging
... intradural disease, including 21 cases of ...on sequences with a relatively short echo time, were seen less well on heavily T2-weighted FSE ... See full document
6
Emerging Patterns of Diffusion Weighted MR Imaging in Creutzfeldt Jakob Disease: Case Report and Review of the Literature
... Creutzfeldt-Jakob disease (CJD) is a rare fatal dementing illness caused by a prion agent com- posed of protease-resistant protein ...Routine MR imaging se- quences (T1-weighted, T2-weighted, ... See full document
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The diagnosis of herniated intervertebral disks with MR imaging: a comparison of gradient refocused echo and spin echo pulse sequences
... The GRE pulse sequence of 200-400/ 15 TRJTE with a flip angle of 15-30° was selected as optimal because of its high signal-to-noise ratio and good contrast between CSF, nucleus pulposus,[r] ... See full document
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Head and Neck Paragangliomas: Improved Tumor Detection Using Contrast Enhanced 3D Time of Flight MR Angiography As Compared with Fat Suppressed MR Imaging Techniques
... T2-weighted MR imaging sequences lack a high enough sensitivity to detect ...of sequences to investigate head and neck lesions have become ...pressed MR imaging techniques have ... See full document
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GRASE (gradient and spin echo) MR of the brain
... turbo spin-echo se- quences have replaced conventional spin-echo sequences in routine T2-weighted magnetic resonance (MR) imaging of the ...Turbo spin-echo ... See full document
6
Comparison of MR pulse sequences in the detection of multiple sclerosis lesions
... conventional spin-echo, fast spin-echo, fast fluid- attenuated inversion recovery (FLAIR), and turbo gradient spin-echo MR sequences in the detec- tion of ... See full document
5
MR Imaging Related Heating of Deep Brain Stimulation Electrodes: In Vitro Study
... MR imaging safety guidelines for patients with DBS systems who are undergoing imaging of the brain have been developed ...before imaging is performed and interro- gated for proper performance ... See full document
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Comparison of dynamic contrast enhanced gradient echo and spin echo sequences in MR of head and neck neoplasms
... Our imaging protocol for head and neck tumors in- cluded sagittal and axial T1-weighted noncontrast spin- echo sequences, axial short-tau inversion-recovery (STIR) sequences, axial and ... See full document
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Gradient Echo MR Imaging of the Cervical Spine: Evaluation of Extradural Disease
... While the FLASH sequences continue to provide increased conspicuity of extradural disease compared with theSE sequence, the superiority is not as pronounced as with a 10° flip angle... T[r] ... See full document
6
T2 mapping of Articular Cartilage in Osteoarthritis of the Knee using 3 T MRI
... for early OA. T2 is highly sensitive to alterations in water content and collagen concentration (72) . Varying T2 in a normal cartilage is due to zonal and regional differences in collagen matrix organisation. T2 values ... See full document
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Overlapping thin section fast spin echo MR of the large vestibular aqueduct syndrome
... fast spin-echo MR ...and MR studies were compared using a regression coefficient. The CT and MR examinations were also evaluated for the morphology of the vestibule, cochlea, ... See full document
9
Use of the intravascular contrast agent NC100150 Injection in spin echo and gradient echo imaging of the heart
... Further- more, with the higher doses of NC100150 Injection (3 and 4 mg/kg), a rim of signal void was created, which was particularly helpful at defining the LV blood pool-[r] ... See full document
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Gradient Echo (GRASS) MR Imaging in Cervical Radiculopathy
... High-resolution imaging of the cervical spine in the axial and sagittal planes with clear distinction of bony and disk margins, neural foramina, nerve roots , CSF, and spinal cord can be[r] ... See full document
7
On the Use of DSC MRI for Measuring Vascular Permeability
... 33. Newton AT, Skinner JT, Quarles CC. Automatic AIF estimation in multi-echo DSC-MRI of pediatric patieints: avoiding the noise floor. In: Proceedings of the Annual Meeting of the International Society for Mag- ... See full document
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High Resolution MR Cisternography of the Cerebellopontine Angle, Obtained with a Three Dimensional Fast Asymmetric Spin Echo Sequencein a 0 35 T Open MR Imaging Unit
... open MR imaging units are being used more frequently because of the pressure to achieve healthcare cost reduction and the need for patient comfort during ...high-resolution imaging. Even with fast ... See full document
5
Confounding Effect of Large Vessels on MR Perfusion Images Analyzed with Independent Component Analysis
... voxel. Spin-echo acquisitions have less sensitivity to these effects, but gradient-echo acquisitions are commonly used for perfusion studies because of their sensitivity to a larger range of ... See full document
6
Adult cerebrovascular disease: role of modified rapid fluid attenuated inversion recovery sequences
... ing difficulty in gauging lesion size, although admittedly in most cases this limitation could be overcome by using the available proton density–weighted images. On fast FLAIR im- ages, the nulling of CSF signal provided ... See full document
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