Coronal T2-weighted images showing the STN in a patient with advanced PD (spin-echo acquisition; TR/TE/NEX, 2200 ms/90 ms/2). Coronal T2-weighted images.

Slides:



Advertisements
Similar presentations
Color pressure maps (mm Hg) in a healthy subject in the axial (A) and coronal (D) planes as well as for a patient (C and F) with a type IIa DAVF affecting.
Advertisements

Hypoplasia at L5, method of measurement.
MR images and plain radiograph of an 82-year-old woman who had compression fractures and osteonecrosis at the L3 vertebral body. MR images and plain radiograph.
Precontrast coronal T1-weighted view shows metastatic nodules (long arrows) from breast cancer in the vicinity of the left BPL and another metastatic mass.
Thin-section (2.5-mm) axial T1-weighted spoiled gradient-echo gadolinium-enhanced images of the brain obtained at 1.5 T for Gamma knife localization (trigeminal.
A and B, Sagittal (A) and axial (B) fast spin-echo images of the cervical spine before treatment demonstrate diffuse increase in signal intensity (arrows)
Tortuosity of optic nervesA, Axial fast spin-echo T2-weighted image showing factor 1: interruption of the optic nerve out of the axial plane (tip of arrow)
A 76-year-old man with a carcinoma ex pleomorphic adenoma (case 2).
MR images in different patients with SIFs
A–D, MR images of an 83-year-old man who was diagnosed with osteonecrosis at the L1 vertebral body. A–D, MR images of an 83-year-old man who was diagnosed.
Deficient cochlear nerve in a 60-year-old patient with a 50-year history of left hearing loss after a motor vehicle accident (patient A10). Deficient cochlear.
A, MIP of 3 mm thickness of the 1.5T scan.
A 3D-IR sequence depicts cochlear EH grade II (thin arrow) and vestibular EH grade II (thick arrow) on the right. A 3D-IR sequence depicts cochlear EH.
A side-by-side comparison of EPVS in a cognitively healthy control versus a patient with aMCI A, A coronal MR brain image of a cognitively healthy control.
Patient 14. Patient 14. Secondary progressive MS. Axial contrast-enhanced T1-weighted MR image (600/27/1 [TR/TE/excitation]). A, No enhanced lesion can.
Intramuscular course and entrapment of the C5 nerve root.
Coronal (A, B) and sagittal (D) sections of MIP reformations of a MDCTA performed on a 4-row-detector system in a 54-year old woman (patient 10) with an.
Comparison of conventional (A) and KRISP (B) FLAIR images (8142/135/1; TI = 2250) at the level of the pons. Comparison of conventional (A) and KRISP (B)
A 48-year-old man with a cerebral metastasis from a hepatocellular carcinoma. A 48-year-old man with a cerebral metastasis from a hepatocellular carcinoma.
MR images and plain radiograph of a 73-year-old man who had compression fractures at T12, L1, L3, and L4 vertebral bodies and osteonecrosis at L1 vertebral.
Coronal gadolinium-enhanced T1-weighted image (TR/TE/NEX, 500/15/2) at the level of the foramen ovale shows a significantly enhancing V3 branch (arrow)
Coronal gadolinium-enhanced T1-weighted image (TR/TE/NEX, 500/15/2) illustrates the normal appearance of V3 as it exits the skull base through the foramen.
A 45-year-old woman with a history of alcohol abuse had changes in consciousness and ocular abnormalities.A, No signal intensity alterations are seen on.
T2-weighted images of a patient with an infarction within the anterior MCA branch territory on day 5 (patient 15) show high SI changes within the ipsilateral.
Normal apical ligament (arrow) and normal anterior atlantoaxial ligament (arrowhead) in the diagram (A) and the midsagittal T2-weighted MR image (B) in.
Sagittal T1-weighted (A) and coronal T2-weighted (B) MR images show the frontoparietal intracalvarial mass lesion that was hypointense on T1-(A) and hyperintense.
Term-born infant with a small dimple at the back and without neurologic symptoms. Term-born infant with a small dimple at the back and without neurologic.
Patient 10. Patient 10. A, Coronal high-resolution CT scan, obtained through the sphenoid sinus, shows a defective intersphenoid septum deviated to the.
Optic glioma.A, Sagittal spin-echo image (TR, 643 ms; TE, 12 ms) shows markedly enlarged optic nerve (arrow).B, Axial fast spin-echo (TR, 6000 ms; TE,
T2-weighted, PD-weighted, FLAIR, and DWI images showing cortical abnormalities in the right parietal lobe; FLAIR and DWI also show abnormalities in the.
Type 1 pedicle marrow signal intensity changes associated with degenerative facet disease. Type 1 pedicle marrow signal intensity changes associated with.
Patient 8. Patient 8. A, Follow-up at day 15. MSE is still identified in the thrombosed vein. B, A hyperintense spot is present in the lumen of a cortical.
Hypoplasia of vertebral body and facet joint L5.
Trends in the use of head CT and advanced imaging in patients treated with IV thrombolysis from 2008 to Trends in the use of head CT and advanced.
A, A sagittal fat-saturated T2-weighted image demonstrates increased signal intensity (arrow) in the superior endplate from an acute compression fracture.
Four more examples of missed additional aneurysms on DSA
A 7-day old neonate, the older sister of patient 1, also presented with neonatal encephalopathy.Axial fast spin-echo T2-weighted image (130/4200/1[TE/TR/NEX])
Coronal gadolinium-enhanced T1-weighted image (TR/TE/NEX, 500/15/2) illustrates the common appearance of V2 (arrows) within the foramen rotundum as central.
3D view of a postoperative MR acquisition in a patient with bilateral implantation of electrodes in the STN for the treatment of advanced PD. Caudate nuclei.
A–C, Sagittal T1-weighted (A), sagittal T2-weighted (B), and axial T2-weighted (C) MR images of the cervical spine in a patient with severe myelopathy.
Midline sagittal FSE T2-weighted MR image (TR/TE, 3816/105eff; echo train length, 16; section thickness, 4 mm; matrix, 512 × 256; FOV, 20 cm). Midline.
Pulse sequence diagram for a diffusion-weighted acquisition shows that 2 diffusion-sensitizing gradients (dark gray) are added to a spin-echo sequence,
Coronal postcontrast T1-weighted image of the orbits in patient 1 demonstrates a heterogeneously enhancing ovoid lesion involving the right medial rectus.
A, The axial HRCT image of the right temporal bone in case 1 shows an erosion in the posterior temporal bone wall (arrow). A, The axial HRCT image of the.
Follow-up prenatal MR imaging at 36 weeks’ gestation.
Coronal T1-weighted contrast-enhanced MR image obtained in January of 1999 at the onset of right hearing impairment shows increased enhancement of the.
A 47-year-old woman with a history of alcohol abuse presented with ataxia, changes in consciousness, and ocular abnormalities. A 47-year-old woman with.
Bone algorithm CT images from the same case, demonstrating focal enlargement of the right tympanic segment, in the axial (left) and coronal (right) planes.
Sagittal midline T1-weighted (A) and coronal fluid-attenuated (B) inversion recovery (C) images demonstrate evidence of progressive cerebellar atrophy.
Images of a 22-month-old male patient with severe left temporal lobe epilepsy that was recognized at age 9 months after bacterial meningitis at age 6 months.A.
Top panel, An example of thick rim lesion (yellow rectangle): QSM (A1) and MWF (A2) in a patient with relapsing-remitting MS. The QSM and MWF values in.
Sequential images from a single patient’s three-step clinical AC-PC protocol.A, Coronal FGRE localizer image (6/1.6; flip angle, 20°; section thickness,
Axial T2-weighted image (A) demonstrates focal cortical dysplasia (arrow) centered in the left anterior temporal lobe in a right-handed patient. Axial.
The “white gray sign.” Axial high-resolution 3D inversion recovery fast-spoiled gradient-echo T1-weighted image demonstrates decreased gray-white contrast.
Longitudinal T1-weighted spin-echo signal-intensity changes in the DN (A–C) and GP (D–F) in a female patient with MS after receiving 0 (A and D), 1 (B.
A, Axial T2-weighted image (3500/90/2) shows a well-defined deep right occipital white matter lesion (asterisk) and a subcortical linear hyperintensity.
Patient 2.A, Axial T1-weighted image (400/14/2) shows a hyperintense mass in the right vestibule (arrow).B, Axial T2-weighted fast spin-echo image (4000/102/4)
Axial T2-weighted MR image shows normal flow void in the right internal jugular vein (arrows), whereas flow-related enhancement can be seen in the left.
Postoperative study of the position of electrode contacts in a patient with bilateral implantation of electrodes in the STN for the treatment of PD. Postoperative.
A–C, Thin-section (1-mm) coronal and axial CT images of the skull base obtained with an edge-enhancing bone algorithm show enlargement (arrows) of the.
A and B, Normal heavily T2-weighted turbo spin-echo (2800/1100 ms, flip angle 150°, acquisition time 7 seconds) MR sialograms obtained before (A) and after.
A, Sagittal fast spin-echo (FSE) T2-weighted image shows a hypointense mass (arrowheads) in the anterior aspect of the spinal canal that extends from C3.
MR images of patient 1.Pre- (A) and postcontrast (B) T1-weighted images reveal a homogeneously hypointense (compared with the pons) mass located in the.
C2 metastasis in a 60-year-old male patient with renal cell carcinoma.
A, Axial T2-weighted image reveals thickening of the cortical gray matter at the medial aspect of both frontal lobes, compatible with bifrontal cortical.
Tubulo-nodular type. Tubulo-nodular type. Fetal MR images (case 4). A, Mid-sagittal view turbo spin-echo T1-weighted sequence (400/17/1) shows typical.
FIG 4. Plots of the Loes scores, based on double-echo spin-echo MR images, obtained at different follow-up examinations for 22 patients with ALD. The T1-weighted.
CT scans chosen for rWTH measures.
Left, T1 spin-echo image at 1
Same section position with spin-echo T1-weighted sequences at 1
Presentation transcript:

Coronal T2-weighted images showing the STN in a patient with advanced PD (spin-echo acquisition; TR/TE/NEX, 2200 ms/90 ms/2). Coronal T2-weighted images showing the STN in a patient with advanced PD (spin-echo acquisition; TR/TE/NEX, 2200 ms/90 ms/2). Section thickness is 2 mm, located every 1 mm. A, The section is located 1 mm behind the anterior limit of the red nuclei. Both STNs are seen as almond-shaped hypointense structures above the locus niger (arrows). B, This section is located 1 mm in front of A, at the level of the anterior limit of the red nuclei. Both STNs are clearly seen (arrows). C and D, These sections are located 1 and 2 mm in front of B, showing the anterior extension of the STN (arrows). D. Dormont et al. AJNR Am J Neuroradiol 2010;31:15-23 ©2010 by American Society of Neuroradiology