[PDF] Top 20 Gradient Echo MR Imaging of the Cervical Spine: Evaluation of Extradural Disease
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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
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Degenerative narrowing of the cervical spine neural foramina: evaluation with high resolution 3DFT gradient echo MR imaging
... The high number of indeterminate levels seen with the 30° technique was due to the lower contrast between CSF and bone, w~ich caused decreased confidence in determining if bony protrusio[r] ... See full document
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Contrast enhanced T1 weighted three dimensional gradient echo MR imaging of the whole spine for intradural tumor dissemination
... The signal-to-noise ratio (SNR) and contrast-to-noise ratio (CNR) on the images of patients with intradural tumor dissem- ination were calculated by one radiologist, who used the fol- lowing formulas: SNR 5 SI ... See full document
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Quantification of cervical spine muscle fat: a comparison between T1-weighted and multi-echo gradient echo imaging using a variable projection algorithm (VARPRO)
... Considerable evidence exists to support a relationship between muscle fatty infiltrates and painful symptoms in patients with neck [1,2,4,25-27] and low back pain as well as a host of other neuromususculoskeletal ... See full document
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Dural sinus occlusion: evaluation with phase sensitive gradient echo MR imaging
... The presence of dural sinus occlusion was determined by the lack of flow void on the spinecho images, the absence of phase shift on the VIGRE study, and the presence of retrograde flow o[r] ... See full document
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Cervical Spine MR Imaging Findings of Patients with Hirayama Disease in North America: A Multisite Study
... ered normal when the C3-C6 vertebral bodies were all anterior to a line drawn from the posterior cortex of C2 to the posterior cortex of C7. LOA was considered present when the thecal sac demonstrated separation from the ... See full document
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Fast spin echo imaging in the evaluation of intradural disease of the spine
... In both cases, however, short TR SE sequences are generally the procedure of choice for the detection of the small signal voids of flowing vessels since gradient moment nulling technique[r] ... See full document
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BLADE in Sagittal T2 Weighted MR Imaging of the Cervical Spine
... Sagittal T2-weighted images are an essential part of MR imag- ing in the cervical spine. Therefore, sufficient contrast of ana- tomic structures and sharp images free of artifacts are impor- tant ... See full document
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Cervical spondylosis: three dimensional gradient echo MR with magnetization transfer
... 2DFT gradient-echo imaging of the cervical ...2DFT gradient-echo imaging to approximate the Ernst angle of CSF while main- taining the spinal cord–CSF contrast by using a ... See full document
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Pseudoatrophy of the cervical portion of the spinal cord on MR images: a manifestation of the truncation artifact?
... During routine evaluation of MR images of the cervical spine obtained with either conventional spin-echo or 3D Fourier transformation 30FT gradient-echo sequences in which CSF was hyperi[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
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MR Imaging of the Cavernous Sinus: Value of Spin Echo and Gradient Recalled Echo Images
... Correlation of coronal T1-weighted spin echo and gradient recalled echo images the laHer with high-signal-intensity vascular structures proved to be an effective means of identifying cav[r] ... See full document
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Effects of magnetic susceptibility artifacts and motion in evaluating the cervical neural foramina on 3DFT gradient echo MR imaging
... The purpose of this study was to evaluate in vitro the effects of magnetic susceptibility and motion on the estimation of neural foramina I diameter with three-dimensional Fourier transf[r] ... See full document
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Negative Susceptibility Vessel Sign and Underlying Intracranial Atherosclerotic Stenosis in Acute Middle Cerebral Artery Occlusion
... GRE imaging was a highly sensitive marker with a high negative predictive value for the pres- ence of an underlying ICAS in the setting of acute stroke because of an acute MCA ...GRE imaging was ... See full document
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Assessment of Hemorrhage in Pituitary Macroadenoma by T2* Weighted Gradient Echo MR Imaging
... Intraparenchymal large hematomas appear as several dif- ferent patterns regardless of the age of the hematoma. The most common appearance of a “dark rim,” “low signal inten- sity rim,” or “peripheral signal intensity ... See full document
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Comparison of MR and CT Myelography in Imaging the Cervical and Thoracic Spine
... It showed superior spatial resolution, which was most pronounced when comparing axial images and hence particularly superior in detecting the lateral extent of disk herniation_ Use of su[r] ... See full document
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Rheumatoid Arthritis of the Cervical Spine: Surface Coil MR Imaging
... Plain films and tomograms were evaluated for the following : 1 atlantodental interval and basion-dental interval; 2 density of the dens; 3 dens erosion; 4 cranial settling; 5 anterior, p[r] ... See full document
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Perfusion sensitive MR Imaging of Gliomas: Comparison between Gradient echo and Spin echo Echo planar Imaging Techniques
... the evaluation of tumor vessels at the capillary level, which might be consistent with histologic tumor vessel evaluation, and also for grading systems such as gliomas (4, ... See full document
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MR Imaging Related Heating of Deep Brain Stimulation Electrodes: In Vitro Study
... case MR imaging-related heating scenario, in which MR imag- ing-related heating is maximized, thermal convection is constrained (compared with pure aqueous solu- tions), and no tissue perfusion ... See full document
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Clinical Utility of a Novel Ultrafast T2 Weighted Sequence for Spine Imaging
... FIG 4. Sagittal T2WI TSE (A and C) and TSE-VFA (B and D) images of the lumbar spine for 2 subjects. A and B, The presence of multifocal osseous metastases with a pathologic fracture of L2 (arrowhead). The ... See full document
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