Bone algorithm CT images from the same case, demonstrating focal enlargement of the right tympanic segment, in the axial (left) and coronal (right) planes.

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

Bilateral cavitary plaques.
Precontrast coronal T1-weighted view shows metastatic nodules (long arrows) from breast cancer in the vicinity of the left BPL and another metastatic mass.
Mural cholesteatoma. Mural cholesteatoma. Axial (A) and coronal (B) HRCT scans show the shell of the cholesteatoma in the epitympanum (black arrow) and.
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.
Two axial images from the same case of a facial nerve schwannoma involving the right mastoid segment of the facial nerve canal. Two axial images from the.
A 30-year-old man with PSA
123I/Tc-99m sestamibi subtraction scan (top left); neck sonogram in region of cystic mass (top right); axial arterial phase CT scan (bottom left); and.
Case 1. Case 1. CT scans in an 8-year-old boy with an ectopic tooth in the left nasal cavity.A, Coronal scan obtained with a bone window setting of 600-HU.
Subsidence of LT-CAGE devices at L5–S1.
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)
Patient with cholesteatoma on the right and chronic otitis media without cholesteatoma on the left. Patient with cholesteatoma on the right and chronic.
Radiation neuropathy. Radiation neuropathy. A 69-year-old woman with a history of breast carcinoma and external beam radiation therapy 2 years before imaging.
Intraosseous temporal bone meningioma in a 45-year-old woman who presented with left-sided hearing loss and tinnitus. Intraosseous temporal bone meningioma.
Two coronal views of the same case, demonstrating the aggressive appearing imaging features of mastoid segment FNSs. The left coronal T1-weighted postcontrast-enhanced.
A–C, Case 5. A–C, Case 5. Axial CT images at 1 month after birth show bilateral frontal and parietal calcifications (arrows). D–F, These calcifications.
A, Axial source image from a contrast-enhanced MRA unambiguously demonstrates a tiny (
MR images demonstrating a large left middle cranial fossa mass.
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.
A 7-month-old boy with left hemimegalencephaly
42-year-old male patient with follow-up neck CT for lymphoma at 70 kVp (A) and corresponding previous CT at 120 kVp (B). 42-year-old male patient with.
An 11-year-old girl with left-face sensitivity and left-temple pain.
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.
Case 4: 25-year-old woman with pulsatile tinnitus.
Dislodged fusion device.
A, Coronal CT scan of the paranasal sinuses in a 45-year-old women with difficulty breathing shows the typical appearance of crista galli pneumatization.
Intracranial hypertension in a 30-year-old woman presenting with headaches and tinnitus. Intracranial hypertension in a 30-year-old woman presenting with.
A, Axial CT in a 41-year-old man with vertigo and complete sensorineural hearing loss in the left ear after prior stapedectomy show focal hyperattenuation.
A, Axial noncontrast CT at the level of the internal capsules demonstrates a left frontal extra-axial hematoma (arrow). A, Axial noncontrast CT at the.
AP (A) and lateral (B) radiographs demonstrating a discontinuous segment of the catheter, with broken catheter ends in the subcutaneous tissue of the lower.
High resolution bone algorithm CT scans.
A and B, Axial and coronal high-resolution CT images of the larynx in a 73-year-old patient with papillary thyroid cancer and left vocal cord paralysis.
Bony cochlear nerve canal atresia in a patient with CND
Coronal reconstructed noncontrast multidetector CT image of the chest demonstrates an extensive paravertebral soft-tissue mass and bone destruction at.
Two different cases of FNS, both coronal plane bone algorithm CT images show significant enlargement of the tympanic segment of the facial nerve with the.
Series of axial CT scans
EACC with intramural bone fragments.
A, Axial non-enhanced CT scan (soft-tissue algorithm) shows a heterogeneous right temporal bone lesion, with cortical thinning and bone remodeling of the.
A 41-year-old man and his son had positive genetic testing for LDS type 1 after he had intracranial hemorrhage as a complication of dissection and some.
Axial T2-weighted MR imaging at the level of the internal auditory canals, demonstrating a large, homogeneous mass filling the right internal auditory.
Four-point subjective rating scale of the perihippocampal fissures (PHF).A and B, Axial and coronal view of same case. Four-point subjective rating scale.
Coronal and axial sketches of the medulla, which correspond to the medullary regions seen on the T2-weighted axial images in Fig 1, demonstrate the anatomical.
A, A 44-year-old woman with CP
KD involving the postauricular area and occipital scalp in an 11-year-old boy. KD involving the postauricular area and occipital scalp in an 11-year-old.
Case 1: 52-year-old woman with buzzing in right ear.
A and B, CT images on a patient status post total thyroidectomy for thyroid cancer show a small enhancing lesion near the right tracheoesophageal groove.
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.
Coronal postcontrast T1-weighted image of the orbits in patient 1 demonstrates a heterogeneously enhancing ovoid lesion involving the right medial rectus.
Temporal bone CT in the Pöschl (A) and Stenvers (B) planes demonstrating a large defect (arrows) in the roof of the right superior semicircular canal.
A, Coronal enhanced MR image of an IAC meningioma demonstrates intense enhancement of the intralabyrinthine structures (curved white arrow). A, Coronal.
A, Axial T2 MR imaging at the level of the hard palate shows an enlarged right lateral retropharyngeal lymph node (asterisk). A, Axial T2 MR imaging at.
Axial CT image (A), 3D view generated from the CT images (B), axial T1 and T2-weighted images (C and D), sagittal T1 and T2-weighted images (E and F) clearly.
Magnified view of the axial images of the cervical spine at a comparable level (CT scan, left; MR image, center; registered image, right). Magnified view.
A 43-year-old male patient with headaches (case 33).
Saccular macula. Saccular macula. Axial (A and B), coronal (C and D), oblique sagittal (Poschl plane) (E and F), and oblique coronal (Stenvers plane) (G.
Axial T2-weighted image (A) demonstrates focal cortical dysplasia (arrow) centered in the left anterior temporal lobe in a right-handed patient. Axial.
Spatial orientation of the thalami.
Sagittal MPRAGE (A) and axial T2-weighted (B) images demonstrate extensive focal cortical dysplasia (arrow) involving most of the visualized left frontal.
A, Axial T2-weighted image (3500/90/2) shows a well-defined deep right occipital white matter lesion (asterisk) and a subcortical linear hyperintensity.
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.
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, Axial T2-weighted image from a routine high-resolution 3T screening study to evaluate internal auditory canal lesions shows the right CNIII entering.
A, T2-weighted coronal image shows a soft-tissue mass of intermediate signal intensity in the left posterior nasal cavity.B, Postcontrast T1-weighted axial.
Examples of types of AICA loops and eighth CN-AICA relationships.
A 75-year-old man with a left brachial zoster-associated plexopathy.
Radiation plexopathy. Radiation plexopathy. A 67-year-old woman with a history of left breast carcinoma and radiation treatment 20 years ago who presented.
Case 2, 12-year-old boy with right-side mixed HL
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.
A 73-year-old woman with well-differentiated SCCA of the lacrimal sac and nasolacrimal duct. A 73-year-old woman with well-differentiated SCCA of the lacrimal.
Presentation transcript:

Bone algorithm CT images from the same case, demonstrating focal enlargement of the right tympanic segment, in the axial (left) and coronal (right) planes (at arrows). Bone algorithm CT images from the same case, demonstrating focal enlargement of the right tympanic segment, in the axial (left) and coronal (right) planes (at arrows). From Wiggins and Harnsberger (2001). Used with permission. R.H. Wiggins III et al. AJNR Am J Neuroradiol 2006;27:694-699 ©2006 by American Society of Neuroradiology