A–C, Anteroposterior (A), oblique (B), and lateral (C) radiographs after thoracic interlaminar epidural injection of contrast material reveal opacification.

Slides:

Advertisements

Similar presentations

Hypoplasia at L5, method of measurement.

Advertisements

Lateral skull radiograph performed in our patient at age 4 years shows cystoperitoneal shunt connected to a VP shunt via a Y connector (dashed arrow, reservoir.

A and B, Anteroposterior (A) and lateral (B) radiographs after contrast injection. A and B, Anteroposterior (A) and lateral (B) radiographs after contrast.

Intrathecal injection is confirmed by visualization of contrast material within the thecal sac, giving a contrast medium–fluid level, while only a small.

Patient with 5/10 concordant, bilateral, occipital head, CVJ, and upper neck pain. Patient with 5/10 concordant, bilateral, occipital head, CVJ, and upper.

A 21-year-old man with recurrent left S1 sciatica and radiculopathy by electromyography. A 21-year-old man with recurrent left S1 sciatica and radiculopathy.

A 30-year-old man with PSA

A, Left common carotid angiography (lateral view).

A, Brachial neuritis with long thoracic nerve neuritis.

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)

A, T2WI MR image demonstrates a focal dorsal indentation in the upper thoracic spinal cord (arrow). A, T2WI MR image demonstrates a focal dorsal indentation.

A, Schematic representation of an anteroposterior view shows orientation of the blunt-tipped Whitacre needle relative to the lamina at the C7–T1 level.

A, Fluoroscopic image with approximately 15° left and caudal angulation shows a 3.5-inch spinal needle (5-inch needles are used for obese patients), which.

Right ECA angiogram in the lateral view shows the petrous branch of the MMA (black arrows) and the stylomastoid branch (white arrows) arising from the.

A, After sterile preparation and draping, a 22-gauge spinal needle is carefully advanced into the appropriate neuroforamen immediately subjacent to the.

A 68-year-old woman presenting 18 days after SAH from PICA aneurysm.

Intramuscular course and entrapment of the C5 nerve root.

A 33-year-old woman with spinal CSF leak syndrome and multiple CSF leaks in the bilateral thoracic and lumbar spine. A 33-year-old woman with spinal CSF.

Dislodged fusion device.

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.

Intracranial hypertension in a 30-year-old woman presenting with headaches and tinnitus. Intracranial hypertension in a 30-year-old woman presenting with.

A, Oblique posttraumatic angiogram of a left cavernous ICA aneurysm

Workstation measurement of thoracic spine Cobb angle

AP (A) and lateral (B) radiographs demonstrating a discontinuous segment of the catheter, with broken catheter ends in the subcutaneous tissue of the lower.

A, Initial fluoroscopic spot image (A) demonstrating disconnection at the pump connector (arrow). A, Initial fluoroscopic spot image (A) demonstrating.

Venous infarction in a patient with epidural and paraspinal abscesses.

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 (A and B) and sagittal (C) T2-weighted MR images reveal synovial cysts at L4–5 bilaterally, causing severe central canal stenosis in a patient with.

Myelograms demonstrate small dorsal and ventral extradural filling defects but normal delineation of nerve roots, indicating no subarachnoid abnormality.A,

Infraconal spinal cord AVM (case 1)

Benign peripheral nerve sheath tumor of the sciatic nerve shows the typical split fat sign (arrow) on coronal T1 (A), target sign (short arrow) on coronal.

A, Schematic representation of anteroposterior view shows the orientation and position of the needle relative to the sacrum. A, Schematic representation.

Myelogram in a 30-year-old man with radicular pain.

Hypoplasia of vertebral body and facet joint L5.

Mass was believed to represent a submandibular space or gland tumor by the referring general surgeon, who initially planned to excise the mass. Mass was.

Axial CT image through L5/S1 (3-mm section, 100 KVp, 50 mA).

Intraoperative radiograph (A) and postprocedural coronal oblique CT scan (B) from long-axis-approach sacral kyphoplasty demonstrate more even deposition.

Radiographic images in cadaver 1 obtained with fluoroscopic guidance

Four more examples of missed additional aneurysms on DSA

A,B. A,B. Contrast-enhanced CT scan of the neck demonstrates extensive soft tissue edema. At the level of the vocal cords, there is a linear attenuation.

28-year-old man with an aneurysmal SAH

Anteroposterior (A and C) and lateral (B and C) images from a left internal carotid artery angiogram obtained during the early (A and B) and delayed angiographic.

Patient 18 had typical orthostatic headache.

Lateral radiograph during inflation of a 10-mm balloon in an S2 midline sacral body fracture (same patient as in Fig 12). Lateral radiograph during inflation.

Patient with 9/10 concordant unilateral mastoid and occipital head pain associated with uncovertebral tear. Patient with 9/10 concordant unilateral mastoid.

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

A 55-year-old woman presenting with left hemiparesis and normal findings on head CT. A, CTP source image shows poor contrast opacification within the right.

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.

Sagittal noncontrast T1WI MR imaging of the cervical, thoracic, and upper lumbar spine demonstrates a circumferential high signal intensity (arrows) in.

Cervical syrinx cavity demonstrated by myelography and myelocystography. Cervical syrinx cavity demonstrated by myelography and myelocystography. A, Frontal.

Case 3. Case 3. MR imaging taken 73 days after vertebroplasty (A–D) and conventional radiographs of lumbar spine (E and F) taken 86 days after vertebroplasty.

Axial contrast-enhanced CT scan shows bilateral facial soft-tissue tumor infiltration, bilateral enlarged middle cranial fossae (arrowheads), bilateral.

Placement of the guidewire under fluoroscopic guidance

Type 1 CSF leak (SLEC-P). Type 1 CSF leak (SLEC-P). A, Schematic drawing shows the relationship of the intervertebral disc spur and a ventral dural tear.

Fig 3. Plastic tubing (thin arrow) and needle (crossed arrow) are connected to the syringe. fig 3. Plastic tubing (thin arrow) and needle (crossed arrow)

The “white gray sign.” Axial high-resolution 3D inversion recovery fast-spoiled gradient-echo T1-weighted image demonstrates decreased gray-white contrast.

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.

Scintigraphic image obtained 48 hours after injection of 1-mCi 111In DTPA into the medication reservoir reveals nonpatency of the catheter system with.

A, MIP image of MRA with injection from the left arm shows reflux of contrast in both jugular veins and the epidural venous plexus with poor opacification.

Fluoroscopic images of L2 after intrathecal injection of contrast material and placement of an 11-gauge trocar in the right pedicle.A, Anteroposterior.

Postembolization frontal radiograph of the T8 vertebra (A) shows Onyx distributed diffusely through the midlateral and right-lateral vertebral body, extending.

Macroscopic study in an adult spine.

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 31-year-old woman with an atypical descending thoracic VA

A 55-year-old male patient who presented with tetraparesis and decreased consciousness for 6 hours. A 55-year-old male patient who presented with tetraparesis.

Osteoporotic vertebral compression fracture of L2 with absent bone marrow edema (BME) treated by percutaneous vertebroplasty (PV). Osteoporotic vertebral.

MRN appearance of a normal sciatic nerve.

Photomicrograph of the midbrain shows the white matter between the red nucleus and substantia nigra, where the nerve fibers (arrow) extend in the obliquely.

Sequential fluoroscopic images demonstrate optimal needle placement (A and B) and contrast injection (C and D). Sequential fluoroscopic images demonstrate.

DSA of the left vertebral injection, lateral (A) and anteroposterior (B) views, and a coronal CTA image (C) from case 23 demonstrate a large unpaired thalamic.

Presentation transcript:

A–C, Anteroposterior (A), oblique (B), and lateral (C) radiographs after thoracic interlaminar epidural injection of contrast material reveal opacification of the lower thoracic epidural space dorsally before injection of steroid and local anesthetic. A–C, Anteroposterior (A), oblique (B), and lateral (C) radiographs after thoracic interlaminar epidural injection of contrast material reveal opacification of the lower thoracic epidural space dorsally before injection of steroid and local anesthetic. The Whitacre needle tip is in the midline within the posterior epidural space. Contrast material is seen extending along the proximal thoracic nerve sheaths (arrows)‏ Blake A. Johnson et al. AJNR Am J Neuroradiol 1999;20:697-705 ©1999 by American Society of Neuroradiology