Functional Localization Possibilities, Limitations, and Validity
Fig. 1 In (a, b), the extravascular BOLD effect is associated with the magnetic field gradient generated outside the boundaries of the blood vessels, which is due to the difference…
MAGNETIC RESONANCE IMAGING
Plasticity in fMRI and DTI
Fig. 1 Functional magnetic resonance imaging brain activations with vibrotactile hand stimulation shown on anatomical images. The patient was investigated after complete median nerve transection of the right hand and…
Resting-State fMRI
, Abraham Z. Snyder1, Carl D. Hacker2, Timothy J. Mitchell1, Eric C. Leuthardt3 and Joshua S. Shimony1 (1) Mallinckrodt Institute of Radiology, Washington University School of Medicine, Saint Louis, MO 63141, USA (2) Department of Biomedical Engineering, Washington University School of…
EEG-fMRI in Epilepsy
Fig. 1 EEG-fMRI analysis stream in epilepsy. Panel (a) shows on the left side the artifact-corrected in-scanner EEG of a 19-year old patient with suspected left mesial temporal lobe epilepsy…
Functional MRI and Diffusion Tensor Imaging
Fig. 1 The state-of-the-art preoperative multimodality MR imaging in a right glioblastoma affecting the basal ganglia, insula, and inferior frontal lobe as visualized on standard MR sequences (a, upper row)….
MRI of the Abnormal Bone Marrow: Focal Pattern
Fig. 5.1 Vertebral hemangioma, CT. Axial CT image (a) of T12 of a 60-year-old man with a vertebral hemangioma shows the typical polka dot sign representing reinforced trabeculae (arrow). Reconstructed…
The Abnormal Bone Marrow: MRI Patterns
Fig. 4.1 Hyperintense focal pattern, normal variant-mosaic. Hyperintense focal pattern due to multiple fatty deposits (arrows) in three different patients with a mosaic pattern of red to yellow marrow conversion….
Benign Versus Malignant Vertebral Fractures
Fig. 8.1 Intravertebral vacuum cleft sign, plain radiography. Lateral view of the thoracic spine of a 60-year-old woman shows a compressed thoracic vertebral body with gas beneath the anterior aspect…
MRI of the Normal Bone Marrow: Pulse Sequences
Fig. 2.1 Yellow marrow, high T1 signal intensity. Sagittal T1-weighted image of the lumbosacral spine of a 65-year-old woman shows high-signal-intensity vertebrae due to predominance of yellow marrow Fig. 2.2…
MRI of Bone Marrow Posttreatment Changes
Fig. 9.1 Fatty marrow conversion after radiotherapy. Sagittal T1-weighted image (a) of the lumbosacral spine of a 68-year-old man with a history of radiation therapy to the pelvis for prostate…
