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Dołączył: 03 Mar 2011
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 Wysłany: Nie 15:19, 13 Mar 2011 Temat postu: adidas scarpe fpg xbc fkn zev |
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,[link widoczny dla zalogowanych]
Cerebral arteriovenous malformation dimensional electron beam CT angiography clinical applications
Values to ensure that the information is not lost as much as possible ,[link widoczny dla zalogowanych], so MIP to more comprehensive , continuous display feeding arteries, but the lack of three-dimensional 1 '. Draining vein in the display area , ss 【 ) and MIP method were 89.3%. Show poor drainage are deep set of veins and to the cavernous sinus , petrosal sinus, basal venous plexus of cases , mainly because : (1) EBCTA not reflect the dynamic changes of hemodynamics , which in the late imaging group deep venous drainage And the case of venous sinus is not well displayed; (2 ) As estimated before the examination is not sufficient . Not result in missing scan range . Data from this group shows up most satisfaction for the transverse sinus , sigmoid sinus ,[link widoczny dla zalogowanych], superior sagittal sinus, straight sinus , the results showed that no significant difference in this respect between the two [3-5J. For the Ss 【 ) and M feeding arteries and draining veins were poor situation. Improved methods can be used : (1) M Law and ss 【 ) a combination of both , the use of ssD reconstructed , the corresponding lower the threshold ; ( 2 ) scan mode CVS with non-overlapping scan ; (3 ) If the previous line DSA, DSA should be studied prior images or CT images. Accurate positioning is not missing ; (4 ) if necessary, scanning the opposite direction immediately after the scan , may help venous return observed , but further study L6J. Cerebral arteriovenous malformation on the inspection methods do not overlap Overlap scanning. This scan the same level,[link widoczny dla zalogowanych], longer than 1 times by Overlap extension ,[link widoczny dla zalogowanych], the purpose of developing venous fully .
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