Graph of the contrast ratio between scar and recurrent disk fragment as a function of time after injection of 0.1 mmol/kg ionic (M) and nonionic (O) contrast.

Slides:

Advertisements

Similar presentations

Hypoplasia at L5 with anterolisthesis at L5 on S1, grade II

Advertisements

Bar graph showing the number of patients with respect to temporary diagnostic relief according to the 5-point patient outcome scale when interviewed 2.

The ROC curve in each parameter.

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

Demonstration of the creation of a patient-specific brain mold for minimizing tissue distortion during fixation. Demonstration of the creation of a patient-specific.

A 50-year-old man with MD. Axial thin-section CT image shows decreased distance between the vertical limb of the posterior semicircular canal and the posterior.

A, CT scan showing disk herniation in the posterolateral part of the L4-L5 disk.B, Transforaminal periradicular infiltration at the L5–S1 level, demonstrating.

Bar graphs show reader preference and diagnostic results from 3 independent blinded readers for the following: global diagnostic preference (A), border.

Image shows appearance of septum within dural sinus in a 68-year-old woman with normal results of an MR imaging examination. Image shows appearance of.

Venographic studies of an osteoporotic VCF

Contrast-enhanced T1WI (A and C) and CBF maps derived from ASL imaging (B and D) for 2 representative cases. Contrast-enhanced T1WI (A and C) and CBF maps.

Line graph showing change in size over time relative to baseline CT

Receiver operating characteristic curves with statistical significance are shown. Receiver operating characteristic curves with statistical significance.

Normalized and averaged images of rGMC and I-123 iomazenil BP

Results of the PE tubes phantom experiments.

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

Dose values for 45 patient scans with use of the high-quality protocol

Contrast-enhanced CT scans show increased enhancement at the right cavernous sinus.A, Contrast-enhanced CT scan obtained in 1994 shows that the right tentorium.

Box-and-whisker plot of attenuation measurements with DE and SECT

Results of the improved processing methodology.

ADC imaging. ADC imaging. A, Delineation of the ROI (left, green limits), intensity versus b value graph of a representative pixel (right), and a parametric.

Graphs comparing average absolute change in thyroid gland size (A) and average percentage change in thyroid gland size (B) after XRT by quarter-year increments.

CTA source images acquired during a steady state of contrast concentration for both the arterial and tissue−time-attenuation curves (ΔT) are predominantly.

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.

Electron microscopic view shows one tumor cell with a round regular nucleus (N), peripherally clumped chromatin (short arrows), and surrounding small amount.

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, Axial CT of a patient with bilateral DON and lack of fat prolapse through the superior ophthalmic fissure. A, Axial CT of a patient with bilateral DON.

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.

Time course analysis of the response in V1 to the M and P stimuli for a single subject. Time course analysis of the response in V1 to the M and P stimuli.

Postmyelography CTs showing (A) bilateral cervicothoracic CSF leaks without an associated meningeal diverticulum; B, Left thoracic meningeal diverticulum.

T2-weighted, PD-weighted, FLAIR, and DWI images showing cortical abnormalities in the right parietal lobe; FLAIR and DWI also show abnormalities in the.

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.

Insufficient infiltration and insufficient passage.

Bar graph of ADC values (s/mm2) for tumor, contralateral normal tissue, ipsilateral normal tissue, and edema for the group of 15 patients with high-grade.

Representative multislice MIP projections of EPVS in the subcortical brain structures and the basal ganglia of a control and a subject with aMCI. Representative.

Contrast-enhancing lesions on CT scans (A–D) in 4 patients with AIDS-related PCNSL. Note irregularly enhancing lesions in the right parietal lobe (A),

Basilar artery diameter measured with CTA in the delayed stage of SAH

Graph of neurologic scores (mean ± SD) for the moderate-severe VSPdelayed group, mild VSPdelayed group, and sham group. Graph of neurologic scores (mean.

MR spectrum of a normal frontal lobe obtained at 1

Right external carotid arteriogram in a 12-year-old boy with a juvenile nasopharyngeal angiofibroma, who presented with nasal obstruction and recurrent.

Bar graph shows the preventive effect of UV on the development of vasospasm for different irradiation time periods. Bar graph shows the preventive effect.

Boxplots and value distribution of Ktrans values in the ASPECTS regions. Boxplots and value distribution of Ktrans values in the ASPECTS regions. A, Boxplots.

A, CT myelogram and myelogram showing minimal filling of a large right S2 Tarlov cyst with a narrow neck. A, CT myelogram and myelogram showing minimal.

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

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.

Orbital amyloidoma in a 32-year old woman with a slowly increasing mass in the right orbit and generalized bone pain. Orbital amyloidoma in a 32-year old.

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

Differentiation of common pediatric brain tumors by quantitative 1H-MR spectroscopy. Differentiation of common pediatric brain tumors by quantitative 1H-MR.

Boxplots of Ktrans values of HT and non-HT regions and the receiver operating characteristic curve. Boxplots of Ktrans values of HT and non-HT regions.

Linear regression analysis to test for correlation of the OsR and NR with FD parameters, MCR (%) (A and C) and pore density (1/mm2) (B and D). Linear regression.

The odds ratio comparing phonation to the breath-hold technique is given above the glottis, at the glottis, and below the glottis. The odds ratio comparing.

The ROC curves analyzing the sensitivity and specificity of rCBVmax values in astrocytomas for 1-year survival (A) and recurrence (B) show the optimal.

A and B, The ROC curves analyzing the sensitivity and specificity of the WHO grading system (I-IV) for the 1-year survival (A) and recurrence (B) show.

MR images of a patient with recurrent herniated diskA, Sagittal view unenhanced T2-weighted MR image.B, Axial view image obtained before the IV administration.

Automatic exposure control in the head of a pediatric patient.

Scatter and box plot of midpoint measurement compared with age of subject. Scatter and box plot of midpoint measurement compared with age of subject. The.

A, 1998–2008 utilization rates for head CT, spine CT, head MR, and spine MR for radiologist equipment owners/lessees in the private office setting. A,

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

Representative quantitative maps of a patient with brain metastasis.

Bar graph illustrating the rate of leak detection by CTM and MRM

Number of white streaks for the cobalt-containing alloy (upper, black lines) and titanium clips (lower, white lines) scanned in high mode (H) (open symbols,

Scatterplots displaying the relationship between FA and age (A).

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.

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

Clustered box-and-whisker graphs show the differences in the mean values of hemodynamic parameters according to the presence of BMVs in each vascular territory.

Axial DWIs at the level of the corona radiata obtained at 2 different time points (A and B) show recurrent periventricular infarcts. Axial DWIs at the.

Effects of tube voltage, filtration, and dose rate on the color difference of the indicator. Effects of tube voltage, filtration, and dose rate on the.

An 11-year-old girl with positive genetic testing and other connective tissue manifestations demonstrates spine instability at both C1 and C2 (note atlantoaxial.

Magnified lateral projections of bilateral ICA angiography (A, right; -B, left) show only minimal collateral flows (arrows) from lenticulostriates over.

Presentation transcript:

Graph of the contrast ratio between scar and recurrent disk fragment as a function of time after injection of 0.1 mmol/kg ionic (M) and nonionic (O) contrast medium. Graph of the contrast ratio between scar and recurrent disk fragment as a function of time after injection of 0.1 mmol/kg ionic (M) and nonionic (O) contrast medium. The contrast radio tended to decrease with time (arithmetic mean ± SD, n = 20). Jui-Sheng Hsu et al. AJNR Am J Neuroradiol 2004;25:1110-1115 ©2004 by American Society of Neuroradiology