MR images obtained in a 13-year-old girl with early-onset thoracolumbar scoliosis.A, Sagittal T1-weighted image (500/12 [TR/TE]) of the brain shows depression.

Slides:

Advertisements

Similar presentations

162-7 Congenital Horizontal Gaze Palsy, Progressive Scoliosis.

Advertisements

High-signal-intensity lesions on T2-weighted MR images

Axial T1-weighted image after contrast administration (A) and a FLAIR image (B) demonstrating a left parietal subcortical DVA with deep venous drainage.

A 30-year-old man with PSA

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)

Axial MR images in a 51-year-old woman with parkinsonism.

A 76-year-old man with a carcinoma ex pleomorphic adenoma (case 2).

A, Measurement of the angle between the TS-OP line and the hard palate in the lateral scout view of the brain CT (black arrow). A, Measurement of the angle.

MR images demonstrating a large left middle cranial fossa mass.

Serial axial T2-weighted images (2000/110/2 at treatment, 3400/100/4 at 6 months and 4000/100/3 at 10 months and 36 months after treatment) in a 52-year-old.

Unilateral AFP and transient urinary retention in 18-month-old girl with lumbosacral radiculomyelitis. Unilateral AFP and transient urinary retention in.

A, Sagittal T2WI MR image demonstrates a typical intraspinal extramedullary arachnoid cyst. A, Sagittal T2WI MR image demonstrates a typical intraspinal.

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)

Early MR imaging study at the age of 4 months in a patient with autopsy-proved infantile Alexander disease. Early MR imaging study at the age of 4 months.

Case 2, an 82-year-old man. Case 2, an 82-year-old man. MR images of the cervical spine, obtained 4 hours after a fall, reveal a large SEH in the dorsal.

Persistent weakness of right lower limb 2 months after EV71 infection in a 16-month-old infant. Persistent weakness of right lower limb 2 months after.

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.

Same patient as shown in figure 3.

Bilateral cochlear nerve absence in a 7-year-old patient with severe dysplasia and bilateral absence of the cochlea (patient C10). Bilateral cochlear nerve.

Normal apical ligament (arrow) and normal anterior atlantoaxial ligament (arrowhead) in the diagram (A) and the midsagittal T2-weighted MR image (B) in.

A, Sagittal view through the brain stem and cervical spinal cord shows the extent of T2 hyperintensities involving the pyramidal tract and posterior columns.

Axial T2-weighted images of a 43-year-old RRMS patient show prominent perivascular spaces (short arrows), which project radially and are aligned with lesions,

Axial MR image (TR/TE, 10,002/142) obtained when the patient was aged 5 days shows extensive areas of abnormal signal intensity, which suggest edema involving.

Axial MR image (10,002/142) obtained when the patient was aged 12 days demonstrates ventricular size and sulcal prominence have increased since the study.

MR images of patient 2 (with juvenile-onset DRPLA).

Involvement of the frontal and parietal lobes in patients with isolated cortical hyperintensities. Involvement of the frontal and parietal lobes in patients.

Multiple cavernous angiomas.

Axial T2-weighted MR imaging at the level of the internal auditory canals, demonstrating a large, homogeneous mass filling the right internal auditory.

Images of a 45-year-old man who had experienced axial-loading injury 4 years before these images were obtained and who experienced the sudden onset of.

Case 1, a 69-year-old woman. Case 1, a 69-year-old woman. MR images of the thoracolumbar spine, obtained 10 hours after sudden-onset severe back pain,

Ill-defined margins as a sign of malignancy.

A-I, Axial T2-weighted brain MR images from patients with SS show hemosiderin deposition along the cerebellar folia (A), vermis (B) and around the midbrain.

Case 21: 7-year-old girl with bilateral perisylvian, lateral parietal, and parieto-occipital polymicrogyria. Case 21: 7-year-old girl with bilateral perisylvian,

Registered and subtraction images

Patient 4: 71 year-old woman with primary angiitis of the CNS

A, Axial high-resolution MR imaging in a 5-month-old girl with clinically suspected right-sided brachial plexus palsy shows avulsion injury of the right.

A, Axial T2-weighted MR image shows the classic MTS, including thickened, elongated, parallel, and horizontally orientated SCP (thick white arrows) and.

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.

A 56-year-old man with fever for 1 week.

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.

Contrast enhancement of an annular tear at initial and follow-up imaging.A, Annular tear shows contrast enhancement. Contrast enhancement of an annular.

Images illustrate the contour and thresholding technique

A 63-year-old man with left L5 radiculopathy on the electromyographic study, who underwent an operation 12 months ago. A 63-year-old man with left L5 radiculopathy.

Coronal T1-weighted contrast-enhanced MR image obtained in January of 1999 at the onset of right hearing impairment shows increased enhancement of the.

52-year-old African-American man with seizure disorder.

Axial T2 (A) and axial T2 FLAIR (B) images show periventricular white matter hyperintensities (arrows), prominent Virchow-Robin spaces (arrowheads), ventriculomegaly,

Sagittal T1-weighted MR image of the pituitary gland in a term neonate (born at gestational week 38) obtained near term (corrected age of 39 weeks; 7 days.

Sagittal T1-weighted MR image of the pituitary gland in a preterm neonate (born at gestational week 28) obtained near term (corrected age of 39 weeks;

Rendering of the embryologic development of the fourth ventricle

Comparison of sagittal images.

Sagittal MR images of patient 8 showing thoracolumbar EDC 1 day post-LP. Sagittal MR images of patient 8 showing thoracolumbar EDC 1 day post-LP. A, Noncontrast.

MR images of the brain (axial sections, fluid-attenuated reversion recovery sequences) show the symmetric hyperintensities (arrows) involving the pyramidal.

A, T1-weighted axial MR image shows a large metastasis (asterisk) involving the C2 vertebral body and extending into the surrounding soft tissues. A, T1-weighted.

A 42-year-old man experienced low-back pain and fever for 5 days.

A 64-year-old man with an intra-abdominal abscess (patient 3).

A, Axial T2-weighted image (3500/90/2) shows a well-defined deep right occipital white matter lesion (asterisk) and a subcortical linear hyperintensity.

A, Immediate postoperative sagittal T1-weighted image shows a C-shaped flap underlying the operative defect (white arrow). A, Immediate postoperative sagittal.

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.

Comparison of 2D time-of-flight MR venograms and 3D contrast-enhanced MPRAGE images of a 37-year-old woman with postpartum dural sinus thrombosis.A, 2D.

MR images of a 52-year-old man obtained 1 year and 3 months after surgery.A, A 3-mm-thick FSE T2-weighted image obtained at the level of the middle cerebellar.

MR images in a 69-year-old woman with cervical and thoracic back pain.

Short-interval follow-up cervical MR imaging of a 67-year-old male ASIA A patient with SCI. T2-weighted FSE images were obtained from an initial MR imaging.

Examples of types of AICA loops and eighth CN-AICA relationships.

Plots of the difference between sonography and MR imaging ventricular measurements against the time interval between sonography and MR imaging. Plots of.

Persistent diffusion abnormalities in the brain stem of patient 2.

Patient 16: gestational-week fetus.

A 75-year-old man with a left brachial zoster-associated plexopathy.

Consecutive cranial to caudal axial T2-weighted MR images demonstrate L4 and L5 nerve root anatomy. Consecutive cranial to caudal axial T2-weighted MR.

A 48-year-old woman with a carcinoma ex pleomorphic adenoma (case 1).

Presentation transcript:

MR images obtained in a 13-year-old girl with early-onset thoracolumbar scoliosis.A, Sagittal T1-weighted image (500/12 [TR/TE]) of the brain shows depression of the floor of the fourth ventricle (arrowhead). MR images obtained in a 13-year-old girl with early-onset thoracolumbar scoliosis.A, Sagittal T1-weighted image (500/12 [TR/TE]) of the brain shows depression of the floor of the fourth ventricle (arrowhead). The pons and medulla oblongata have a reduced volume.B, Axial T2-weighted image (4500/120) at the level of the medulla oblongata shows rectangular configuration of the medulla. The floor of the fourth ventricle is tent shaped (arrows), with missing prominence of the cuneate and gracile nuclei. The inferior olivary nuclei (IO) are prominent with respect to the pyramids (P).C, Axial T2-weighted image (4500/120) at the level of the pons shows absence of the facial colliculi, with tent-shaped configuration of the floor of the fourth ventricle (arrows). A deep midsagittal cleft extends ventrally from the fourth ventricular floor, producing the split pons sign (arrowhead). Andrea Rossi et al. AJNR Am J Neuroradiol 2004;25:1046-1048 ©2004 by American Society of Neuroradiology