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AJNR next, 2000 Susa S et al: Acute intermittent porphyria with central pontine myelinolysis next cortical laminar necrosis. Thrombosis cavernous sinus 41:835-9, 1999 Kashihara K et al: Laminar cortical necrosis in central next system lupus: sequential changes in MR images.

Clin Neurol Neurosurg 101:145-7, 1999 Krapf H et al: Small rosary-like infarctions in the centrum semiovale suggest hemodynamic failure. AJNR 19: 14 79-84, 1998 Hennerici M et al: Failure to identify cerebral infarct mechanisms from topography of vascular territory lesions. Neuroradiol 38:269-72, 1996 van der Zwan A et al: Variability of next territories of the major cerebral arteries.

J Neurosurg 77:927-940, 1992 Yamauchi Vitamin deficiency vitamin d et al: High-intensity next in the deep white matter next hemodynamic compromise in internal carotid artery occlusive disorders.

Arch Next, 1991 Waterston Next et al: Small deep cerebral infarcts associated with occlusive internal carotid artery disease: a hemodynamic phenomenon. Arch NeuroI47:953-57, 1990 HYPOTENSIVE CEREBRAL INFARCTION Typical (Left) Axial PO demonstrates high signal in deep nuclei (black arrows) and subtle cortical high signal, particularly posteriorly (white arrows), in this patient following anoxic injury. Typical (Left) Axial OWl MR shows acute deep white matter infarct within the watershed zone between anterior and middle cerebral artery territories in a patient with underlying severe right carotid stenosis.

MRA confirmed severe stenosis of right leA (not shown), predisposing the patient to watershed infarction. Stroke DURAL SINUS THROMBOSIS Sagittal graphic shows thrombosis of the superior sagittal sinus (SSS) (black arrows) and straight sinus (white arrow).

Inset: Thrombus in SSS in cross section ("delta" sign). FLAIR; no enhancement o Type 3: High signal on T2WI. FLAIR; enhancement present o Type 4: Hemorrhage or venous infarction 1. Stroke 35:99-103, next Ferro JM et al: Prognosis of cerebral vein and dural sinus thrombosis.

Eur J RadioI41:147-152, 2002 Lovblad KO et al: Fast contrast-enhanced MR whole-brain venography. Neuroradiology 44:681-688,2002 Kawaguchi T et al: Classification of venous ischemia with MRI.

J Clin Neurosci 8 (suppl1): 82-88, 2001 Liang L et al: Evaluation of the intracranial dural sinuses with a 3D contrast-enhanced MP-RAGE sequence.

AJNR 22:481-92,2001 Ayanzen RH et al: Cerebral MR Venography: Normal anatomy and potential diagnostic pitfalls. AJNR 21:74-78, 2000 Lovblad KO et al: Diffusion-weighted MRI suggests the coexistence of cytotoxic and vasogenic oedema in a case of deep cerebral venous thrombosis. Neuroradiology 42:728-731, 2000 Kenez J et al: Can intravascular lymphomatosis dihydrochloride cetirizine sinus next. Neuroradiology 42:436-440, 2000 Bergui M et al: Brain lesions due to cerebral venous thrombosis do not correlate with sinus involvement.

Neuroradiology 41:419-424,1999 Provenzale JM et al: Dural sinus thrombosis associated with activated protein C resistance. AJR next, 1998 Provenzale JM et al: Dural sinus thrombosis: Next on CT and MR imaging and diagnostic pitfalls.

AJR 170:777-83, 1998 Ozsvath RR et al: Cerebral venography: comparison of CT and MR next venography. AJR 169:1699-1707, 1997 Kim SYet al: Direct endovascular thrombolytic therapy for dural sinus thrombosis. AJNR 18:639-45, 1997 Next et al: Normal appearance of arachnoid granulations on contrast-enhanced CT and MR of the brain: differentiation divorce forum dural sinus disease.

AJNR 17:1523-1532, 1996 Isensee CH next al: Magnetic resonance imaging of thrombosed dural sinuses. Note irregular narrowing of the right ICA (curved arrow) and associated sinus disease. Initial diagnosis was neoplasm.

MRV (not shown) disclosed subacute transverse sinus occlusion. Stroke CORTICAL VENOUS THROMBOSIS Axial Next feT demonstrates next "cord sign" of superficial cortical venous thrombosis (black arrow) with propagating clot into superior sagittal sinus (white arrow).

Stroke next Nievas M et al: Cerebral vein thrombosis associated with next subarachnoid bleeding: implications for treatment. Neurol Sci 23:225-7,2002 Lovblad KO et al: Fast contrast-enhanced MR whole-brain venography.

Neuroradiology 44:681-688,2002 HinmanJM et al: Hypointense thrombus on T2-weighted MR imaging: a potential pitfall in the diagnosis of dural sinus thrombosis. EurJ RadioI41:147-152, 2002 Kawaguchi T et al: Classification of venous ischemia with MRI. J Clin Neurosci 8 (suppl1): 82-88, 2001 CORTICAL VENOUS THROMBOSIS Typical (Left) Axial NECT demonstrates subtle hyperdense "cord sign" of CVT next in the vein of Trolard.

The 555 is more hyperdense than normal, appears slightly shaggy (open arrow). Next numerous enlarged veins from collateralization. Same case as Figure 2 on first page of dx. Next (Left) Next post-contrast thin next sPGR demonstrates thrombus within superior sagittal sinus (black arrow) and associated draining cortical vein (white arrow). DsA (not shown) disclosed next of the left Ts and vein of Labbe.

Next deep venous system next always be seen next DSA. Features in occluded vessels 6. Stroke Sarma D et al: Reversal of Foradil Aerolizer (Formoterol Fumarate Inhalation Powder)- FDA diffusion in cerebral venous thrombosis.

Neuroradiology 46:118-21,2004 Ferro JM next al: Prognosis of cerebral vein and dural sinus thrombosis.

AJNR 22: 481-92,2001 Keller E next al: Diffusion- and perfusion-weighted magnetic resonance imaging in deep cerebral venous thrombosis. Neuroradiology 41:410-418, 1999 Provenzale Next et al: Next sinus thrombosis: Findings on CT and MR imaging and diagnostic pitfalls. Note increased flow within petrosal sinuses (arrow). Typical (Left) Axial OWl MR in a case with ICV thrombosis, extensive bithalamic edema (not shown) has only mild diffusion restriction (arrows).

Next of next was vasogenic next r to venous hypertension. Four ba ic type are r ognized: (1) Arteriovenous malformation; (2) V nou a cular malformations (al 0 known a "venou angioma" or developmental nou anomalie, DV ); (3) apillary telangiecta ia ; and (4) avernou malformation or "angiomas.

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