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Panminerva Medica 1998 Marzo;40(1):1-7

lingua: Inglese

Ultrasonic ­image anal­y­sis of ­the arte­ri­al ­wall in ath­ero­scler­o­sis

Coend L. D., Ramaswami G., Chan Ma P., Belcaro G., Nicolaides A. N.

From ­the Irvine Laboratory Academic Surgical Unit, St. Mary’s Hospital, London


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Background. Atherosclerotic carot­id ­artery ­plaques ­can be clas­si­fied on ­the ­basis of ­their ultra­sound appear­ance accord­ing to ­the pat­tern of echol­u­cen­cy ­and echog­e­nic­ity. The ­most com­mon­ly ­used clas­sifi­ca­tion is ­the ­one ­described by Gray-Weale ­who ­defined 4 ­plaque ­types.
Methods. The imag­es of ­the carot­id ­and femo­ral arter­ies of 9 ­healthy vol­un­teers ­and 21 ­non-insu­lin depen­dent dia­bet­ic ­patients ­were ana­lysed. In ­this ­study 16 ath­e­ros­cle­rot­ic carot­id ­artery ­plaques ­were ­imaged by B-­mode ­high res­o­lu­tion ultra­so­nog­ra­phy ­and ­then sub­ject­ed to anal­y­sis of ­the dig­it­ised imag­es.
Results. The ­results ­show ­that ­the ­plaques ­could be sep­ar­at­ed ­into 3 ­groups accord­ing to ­their ech­o­gen­ic prop­er­ties. Gray-Weale ­plaques ­types 2 ­and 3 ­could ­not be dis­tin­guished ­and it is pro­posed ­that ­these ­should be clas­si­fied as a sin­gle ­group.
Conclusions. An ­increased echog­e­nic­ity in ­the inti­ma-­media com­plex of ­non-insu­lin depen­dent dia­bet­ics as ­well as a rela­tion­ship ­with ­risk fac­tors ­for ­the devel­op­ment of car­di­o­vas­cu­lar dis­ease ­and ­with ­the ultra­sound ­score ­could ­not be deter­mined in ­this ­study.

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