Carotid elastography
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ELASELASTTOGRAFIA OGRAFIA CAROTIDIANACAROTIDIANA
Alexandru AndritoiuSpitalul Clinic de Urgenta Militar
Craiova
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PrinciPrincipiul elastografieipiul elastografiei
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Observatii personale
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Lot de studiuLot de studiu
• N: 95 subiecti
• Varsta: 60+/-9.45 ani (40-80)
• Sex: 47F:48B
• DZ tip 2: 20/95 (21%)
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ObiectiveObiective
• Determinarea Strain-ului CAR prin RT-Elasto• Relatia Strain – ATS car, varsta, DZ
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Metoda de studiuMetoda de studiu
RT-Elasto (Hitachi)
Parametri• Strain% PP-ACC• CIMT (mm)• +/- placa• +/-DZ
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RezultateRezultate
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Strain - Valori de referinta
0
0,1
0,2
0,3
0,4
0,5
0,6
40-49 50-59 60-69 70-80
F
B
Strain PP ACC scade cu varsta –la ambele sexe
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Corelatia Corelatia StrainStrain -Varsta -Varsta
%Strain
Varsta
r = -0.51;p<0.000195%IC(-0.64 to -0.4)
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Corelatia Strain-CIMT
r = -0.41;p<0.000195% IC: (-0.56 to -0.23)
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CIMT-StrainCIMT-Strain
0,49+/-0,14
0,35+/-0,16
0
0,1
0,2
0,3
0,4
0,5
0,6 CIMT<0,9 mm
CIMT>0,9 mm
p = 0.0005
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Strain-PlacaStrain-Placa
0,44+/-0,06
0,31+/-0,11
0
0,05
0,1
0,15
0,2
0,25
0,3
0,35
0,4
0,45
0,5
non Placa
Placa
p<0.0001
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StrainStrain - DZ tip 2 - DZ tip 2
0,42+/-0,1
0,36+/-0,1
0,33
0,34
0,35
0,36
0,37
0,38
0,39
0,4
0,41
0,42
0,43
%Strain
non DZ
DZp<0.01
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ConcluziiConcluzii
• RT-Elasto poate fi aplicata cu succes in evaluarea elasticitatii peretelui carotidian
• Strain egal intre sexe, la aceeasi grupa de varsta. Totusi, la barbati se remarca o reducere a elasticitatii mai accentuata dupa varsta de 70 ani
• Strain se coreleaza invers cu CIMT• Strain scade in DZ si in prezenta placilor CAR• Limite – dependenta de operator!