Ultrasound assessment of carotid arterial atherosclerotic disease

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~~Carotid~~Ultrasound assessment of carotid arterial atherosclerotic disease can be conveniently graded into percentage stenoses by ~~assesing~~assessing several sonographic parameters.

The NASCET criteria is as follows ~~(this has been further elaborated in~~(see reference 3 for further details).:

no stenosis: normal ~~wave form~~ waveform
&lt~~; 15~~ ;15% stenosis:
- deceleration ~~spectral broadening~~ ~~with a peak systolic velocity (PSV) of <~~ ~~125~~ ~~cm/s~~
~~16-49 % stenosis :~~
- ~~pan-systolic spectral broadening~~ ~~with a peak systolic velocity (PSV) of <~~ ~~125~~ ~~cm/s~~
~~50-69 % stenosis :~~
- ~~pan-systolic~~ spectral broadening with a peak systolic velocity (PSV) <125 cm/s
16-49% stenosis:
- pansystolic spectral broadening with a PSV < 125 cm/s
50-69% stenosis:
- pansystolic spectral broadening with a PSV of > ~~~~125~~~~;125 cm/sand
- end diastolic velocity (EDV) < ~~~~110~~~~;110 cm/s or ICA/CCA PSV ratio >2 but <4
70-79% stenosis:
- pansystolic spectral broadening with PSV >270 cm/sor
- EDV >110 cm/sor
- ICA/CCA PSV ratio > ~~2 ~~but <~~ 4~~
~~70-79 % stenosis :~~
- ~~pan-systolic spectral broadening with PSV>~~ ~~270~~ ~~cm/s or~~
- ~~EDV >~~ ~~110~~ ~~cm/s or~~
- ~~ICA/CCA PSV ratio >~~ 4;4
80-99% stenosis: EDV > ~~~~140~~~~;140 cm/s
complete occlusion: no flow :; terminal thump

-Carotid arterial disease can be conveniently graded into percentage stenoses by assesing several sonographic parameters. The <a href="/articles/nascet-criteria">NASCET criteria</a> is as follows (this has been further elaborated in reference 3).<ul>
~~-<li>no stenosis : normal wave form </li>~~
~~-<li>< 15 % stenosis : <ul><li>~~
~~-deceleration spectral broadening with a peak systolic velocity (PSV) of < 125 cm/s</li></ul>~~
~~-</li>~~
~~-<li>16-49 % stenosis : <ul><li>~~
~~-pan-systolic spectral broadening with a peak systolic velocity (PSV) of < 125 cm/s</li></ul>~~
~~-</li>~~
~~-<li>50-69 % stenosis : <ul>~~
~~-<li>pan-systolic spectral broadening with a peak systolic velocity (PSV) of > 125 cm/s and </li>~~
~~-<li>end diastolic velocity (EDV) < 110 cm/s or </li>~~
~~-<li>ICA/CCA PSV ratio > 2 but < 4~~
+Ultrasound assessment of carotid arterial atherosclerotic disease can be conveniently graded into percentage stenoses by assessing several sonographic parameters.The <a href="/articles/nascet-criteria">NASCET criteria</a> is as follows (see reference 3 for further details):<ul>
+<li>no stenosis: normal waveform </li>
+<li><15% stenosis: <ul><li>deceleration spectral broadening with a peak systolic velocity (PSV) <125 cm/s</li></ul>
+<li>16-49% stenosis: <ul><li>pansystolic spectral broadening with a PSV < 125 cm/s</li></ul>
+</li>
+<li>50-69% stenosis: <ul>
+<li>pansystolic spectral broadening with a PSV of >125 cm/s and
+</li>
+<li>end diastolic velocity (EDV) <110 cm/s or ICA/CCA PSV ratio >2 but <4</li>
~~-<li>70-79 % stenosis : <ul>~~
~~-<li>pan-systolic spectral broadening with PSV> 270 cm/s or </li>~~
~~-<li>EDV > 110 cm/s or </li>~~
~~-<li>ICA/CCA PSV ratio > 4~~
+<li>70-79% stenosis: <ul>
+<li>pansystolic spectral broadening with PSV >270 cm/s or
+<li>EDV >110 cm/s or </li>
+<li>ICA/CCA PSV ratio >4</li>
~~-<li>80-99% stenosis : EDV > 140 cm/s</li>~~
~~-<li>complete occlusion : no flow : terminal thump</li>~~
~~-</ul><h4>See also</h4><ul><li>~~
~~-<a href="/articles/carotid-artery-stenosis-ultrasound-criteria">carotid artery stenosis - ultrasound criteria</a> - By Radswiki~~
~~-</li></ul>~~
+<li>80-99% stenosis: EDV >140 cm/s</li>
+<li>complete occlusion: no flow; terminal thump</li>
+</ul><h4>See also</h4><ul><li><a href="/articles/carotid-artery-stenosis-ultrasound-criteria">carotid artery stenosis - ultrasound criteria</a></li></ul>

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Ultrasound assessment of carotid arterial atherosclerotic disease

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