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.

Slides:

Advertisements

Similar presentations

Patient 4. Patient 4. Sinonasal carcinoma t(15;19). A, CT scan demonstrates a midline sinonasal tumor (arrow) with lytic bony destruction of the paranasal.

Advertisements

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.

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

A 27-year-old man with recurrent disk herniation confirmed by reoperation. A 27-year-old man with recurrent disk herniation confirmed by reoperation. A,

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 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 and B, The superior sagittal sinus (straight arrow), straight sinus (arrowhead), and vein of Galen (curved arrow) are clearly depicted, and were seen.

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

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.

A 40-year-old man who presented with left-sided pulsatile tinnitus.

MEG SAMg2 data superimposed on coronal reformation (A), sagittal reformation (B), and axial MPRAGE MR imaging (C). MEG SAMg2 data superimposed on coronal.

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

Types I and II LTS. Axial contrast-enhanced T1-weighted MR image obtained in a 55-year-old man with a type I LTS on the left and a type II LTS on the right.

Contrast-enhanced fat-suppressed T1-weighted MR images obtained through the orbits show diffuse homogeneous thickening of the medial, lateral, and inferior.

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.

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.

Axial view MR images of the head, obtained at the time of second presentation.A, T1-weighted MR image (400/15) shows thickening of the dura overlying the.

Sagittal enhanced 3D TOF image through the right side of the Meckel cave in a 53-year-old-man. Sagittal enhanced 3D TOF image through the right side of.

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.

Patient 2, a 46-year-old woman with headaches and cortical venous thrombosis.A, Axial FLAIR (10,327/158/2200) MR image shows focal sulcal hyperintensity.

MR images obtained through the pituitary gland show diffuse enlargement of the pituitary gland. MR images obtained through the pituitary gland show diffuse.

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.

Nonenhanced sagittal T1-weighted MR image (500/11/1) in a 37-year-old woman with AIDS and chronic anemia (hemoglobin level, 8.2 mg/dL) shows diffuse abnormal.

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

Two different patients with type 3 large CPCs containing tumor.

A, MIP coronal 3D PSIF image showing class II injury to the right IAN with mild increase in caliber (less than 50% of the left) and signal intensity of.

Sphenopetrosal sinus in a patient with a petroclival meningioma

A and B, Venous phase of a conventional intra-arterial catheter angiogram clearly shows flow within the nondominant transverse sinus (A, arrow), whereas.

Patient 10. Patient 10. A, Coronal high-resolution CT scan, obtained through the sphenoid sinus, shows a defective intersphenoid septum deviated to the.

Coronal (A), axial (B), and right parasagittal (C) CT images in a 58-year-old man show bilateral protrusion of the IOC into the maxillary sinus. Coronal.

Images in a 49-year-old women with leptomeningeal carcinomatosis from adenocarcinoma of the lung. Images in a 49-year-old women with leptomeningeal carcinomatosis.

Half-dose CE-MRV. Half-dose CE-MRV. A and B, Coronal (A) and sagittal (B) full-thickness MIP images (TR/TE, 3.4/1.3 ms; flip angle, 25°) in a 27-year-old.

Images reveal arachnoid granulations in a 54-year-old man with headaches who had normal results of an MR imaging study.A, Sagittal reconstruction image.

Coronal T1-weighted postcontrast MR image in a 71-year-old man, 11 years after radiation therapy, with a contrast enhancing polyp (arrow) with less enhancing.

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,

Dural venous sinus stenosis at 2D-TOF MR venography in two patients with AROP. A, In one patient, lateral projection shows occlusion or high-grade stenosis.

Off-midline non-contrast-enhanced sagittal T1-weighted MR image (600/12/1) in a 48-year-old woman with breast cancer who presented with headache and fatigue.

Off-midline non-contrast-enhanced sagittal T1-weighted MR image (500/11/1 [TR/TE/excitations]) in a 25-year-old healthy man shows the normal appearance.

Hard candy. Hard candy. Sagittal reconstruction from enhanced CT shows a curvilinear attenuation (arrowheads) in the oral cavity representing a ring-shaped.

Case 2: 62-year-old woman with loss of visual acuity, right-sided chemosis, and exophthalmos. Case 2: 62-year-old woman with loss of visual acuity, right-sided.

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

A 23-year-old woman woke up with a complete hemiplegia.

19-year-old woman with nausea, vomiting, headache, and deteriorating mental status. 19-year-old woman with nausea, vomiting, headache, and deteriorating.

T2-weighted MR imaging appearance of a healthy 60-year-old woman (A), a 66-year-old woman with idiopathic Parkinson disease (B), and a 16-year-old female.

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

A 58-year-old woman with positional headaches and tinnitus.

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.

A, Coronal enhanced MR image of an IAC meningioma demonstrates intense enhancement of the intralabyrinthine structures (curved white arrow). A, Coronal.

Contrast-agent–enhanced T1-weighted MR images (700/15) obtained in a 71-year-old man with skin cancer, who had TMJ tenderness and discomfort in the left.

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.

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

Axial 3D-bFFE images of the lower cranial nerves from the level of the cochlear aqueduct to the level of the lower margin of the JF on the left side. Axial.

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.

A, Sagittal T1-weighted image demonstrates a mildly hypointense well-defined mass arising from the posterior aspect of the tongue abutting the inferior.

Examples for true-positive, false-positive, and false-negative cord signs in the evaluation of sinus thrombosis. Examples for true-positive, false-positive,

Axial CT scan shows decalcification of sphenoid bone (arrowheads) adjacent to neurofibroma infiltration of the lateral rectus muscle (arrows) in the absence.

Patient 3, a 64-year-old woman with headaches and cortical venous thrombosis.A, Axial FLAIR (10,002/158/2200) MR image shows focal sulcal hyperintensity.

A 90-year-old woman with severe midback pain.

Case 3: 54-year-old woman with Aspergillus osteomyelitis.

A 41-year-old man with apparent thrombosis of the entire right internal jugular vein (IJV). A 41-year-old man with apparent thrombosis of the entire right.

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.

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

A, Axial T1- weighted MR image shows a predominantly isointense lesion in the right parietal bone. A, Axial T1- weighted MR image shows a predominantly.

Seventy-six-year-old man with acute venous thrombosis involving left parietal cortical vein (thrombus age approximately 1 day). Seventy-six-year-old man.

CT scan of a 27-year-old man with clinical suspicion of dural sinus thrombosis.Lateral (A), anteroposterior (B), caudocranial (C), and oblique sagittal.

Case 2. Case 2. A, Coronal unenhanced T1-weighted image through the base of the skull. The left pterygopalatine fossa appears infiltrated by soft tissue.

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:

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 time-of-flight maximum intensity projection MR venogram shows lack of flow-related enhancement in superio... 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 time-of-flight maximum intensity projection MR venogram shows lack of flow-related enhancement in superior sagittal sinus (arrows) and straight sinus (arrowheads). Note that by using this technique, the thrombosis is inferred by absence of a finding (ie, lack of flow-related enhancement) rather than by direct visualization of the thrombus.B, Sagittal reconstruction image obtained from a 3D contrast-enhanced MPRAGE image directly shows thrombus in the straight sinus and superior sagittal sinus (large arrows). The thrombus is also seen to extend into the adjacent vein of Galen (small arrows), have irregular margins, and produce irregular contrast enhancement of the inferior sagittal sinus (arrowheads), which were findings that were not seen in cases showing arachnoid granulations. Luxia Liang et al. AJNR Am J Neuroradiol 2002;23:1739-1746 ©2002 by American Society of Neuroradiology