[3D-CT angiography and duplex sonography compared to arteriography in carotid stenoses].
OBJECTIVE
To determine the value of 3D-CT angiography, duplex sonography in comparison to selective digital subtraction angiography for evaluation of carotid artery stenoses.


METHODS
30 patients with 51 stenoses of carotid artery underwent 3D-CT angiography, duplex sonography and angiography. Quantification of stenosis was determined according to the NASCET study and categorized into mild (0-29%), moderate (30-69%), severe (70-99%) and occluded (100%).


RESULTS
The agreement of 3D-CT angiography with intraarterial digital subtraction angiography (DSA) was 62% (r = 0.89; p < 0.0001) and of duplex sonography with DSA was 77% (r = 0.94; p < 0.0001). Both modalities underestimated one occlusion as stenosed. In the evaluation of moderate and severe stenoses 3D-CT angiography showed an agreement with DSA in 50% (duplex: 88%) and 55% (duplex: 89%) respectively and was inferior to duplex sonography.


CONCLUSIONS
3D-CT angiography is inferior to duplex sonography in the evaluation of carotid stenosis and not useful as a screening or reference examination.
Link
J
J
Klinik für Radiologische Diagnostik, Christian-Albrechts-Universität zu Kiel.
Müller-Hülsbeck
S
S
Wesner
F
F
Höpfner
M
M
Schwarzenberg
H
H
Heller
M
M
D000368:Aged; D015901:Angiography, Digital Subtraction / Q000295:instrumentation / Q000379:methods* / Q000706:statistics & numerical data; D002343:Carotid Artery, Internal / Q000000981:diagnostic imaging; D016893:Carotid Stenosis / Q000000981:diagnostic imaging*; D005069:Evaluation Studies as Topic; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011446:Prospective Studies; D018709:Statistics, Nonparametric; D014057:Tomography, X-Ray Computed / Q000295:instrumentation / Q000379:methods* / Q000706:statistics & numerical data; D018616:Ultrasonography, Doppler, Duplex / Q000295:instrumentation / Q000379:methods* / Q000706:statistics & numerical data
3D-CT-Angiographie und Duplexsonographie im Vergleich zur Arteriographie bei Karotisstenosen.