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Title:Trirazsežna ultrazvočna preiskava in stenoza notranje karotidne arterije
Authors:ID Flis, Vojko (Author)
ID Tetičkovič, Erih (Author)
Files:URL http://www.dlib.si/details/URN:NBN:SI:doc-R9TABD2Q
 
Language:Slovenian
Work type:Not categorized
Typology:1.08 - Published Scientific Conference Contribution
Organization:UM - University of Maribor
Abstract:Izhodišča. Razčlenitev ultrazvočne zgradbe aterosklerotične lehe pri stenozi notranje karotide ima lahko pomembne posledice za odločitev o kirurškem posegu na tej arteriji. Pričujoča raziskava primerja zmožnost razločevanja trirazsežnega ultrazvočnega pregleda (3D UZ) med ultrazvočno zgradbo asimptomatske in simptomatske lehe pri stenozi, ki je večja od 70%. Bolniki in metode. Pregledanih je bilo 86 bolnikov s stenozo notranje karotidne arterije, večjo od 70% (70-99%, 45 simptomatskih, 41 asimptomatskih). 3D UZ slika je bila digitalizirana in uravnotežena (GSM) v sivih svetlobnih tonih med črnino in belino (0 = kri, 200 = adventicija žile). Mediana vrednost sivine (GSM) za leho je bila izračunana iz volumskega razmerja ehogenimi in eholucentnimi področji. Heterogenost lehe je bila izračunana iz gostote ehogenih področij na volumensko enoto lehe. Rezultati. GSM volumsko razmerje eholucentnosti je bilo višje pri asimptomatskih lehah (0,6 - IZ 0,48-0,91 proti 0,3 - IZ 0,21-0,75:p=0,002). GSM heterogenost je bila višja pri simptomatskih lehah (6,8 - IZ 2,5-18,3 proti 0,41 - IZ 0,2-3,4:p=0,0001). Zaključki. Prostorski pregled celotne aterosklerotične lehe, ki ga omogoča preiskava s 3D UZ, omogoča objektivno analizo ultrazvočne strukture aterosklerotične lehe in je pri razlikovanju med simptomatsko in asimptomatsko leho bolj natančna metoda kot analiza posameznih UZ presekov, dobljenih z dvorazsežno UZ preiskavo.
Year of publishing:2003
Number of pages:Str. III-39 - III-42
PID:20.500.12556/DKUM-56182 New window
UDC:616.1
ISSN on article:1318-0347
COBISS.SI-ID:1329727 New window
NUK URN:URN:SI:UM:DK:NY7ZBRZN
Publication date in DKUM:21.12.2015
Views:2430
Downloads:38
Metadata:XML DC-XML DC-RDF
Categories:Misc.
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Record is a part of a proceedings

Title:Simpozij o tridimenzionalni ultrazvočni preiskavi (3D UZ), Maribor, 3. oktober 2003
COBISS.SI-ID:128201472 New window

Record is a part of a journal

Title:Zdravniški vestnik. glasilo Slovenskega zdravniškega društva
Publisher:Slovensko zdravniško društvo
ISSN:1318-0347
COBISS.SI-ID:32893696 New window

Secondary language

Language:Unknown
Title:Three-dimensional ultrasound and stenosis of internal carotid artery
Abstract:Background. Eludication of the ultrasound structure of the atherosclerotic plaque in stenosis of internal carotid artery may have important implications for carotid surgery. This study compares the ability of computer derived 3D ultrasound gray scale volumetric measurements to diferentiate between ultrasonic structure of symptomatic and asymptomatic carotid plaque causing more than 70% stenosis. Methods. Eightysix internal carotid artery stenoses (70-99%, 45 symptomatic, 41 asymptomatic) were imaged with 3D ultrasound to obtain the whole volume of the atherosclerotic plaque. Digitalized sonograms were computerized and normalized to the gray scale median (GSM) of blood (0) and vessel adventitia (200). Plaque GSM was obtained for the whole volume by computing the volume ratio between acholucent and echogenic areas. The plaque heterogeneity was obtained by computing the density of echogenic areas per volume unit. Parametric t test was used for statistic analysis. Results. Minimum volume GSM ratio (determining echolucency) was higher for asymptomatic plaque (0.6 - CI 0.48-0.91 versus 0.3 - CI 0.21-0.75:p=0.002). Greater GSM heterogeneity was present in symptomatic plaque (6.8 - CI 2.5-18.3 versus 0.41 - CI 0.2-3.4: p=0.0001). Conclusions. Volume ultrasound imaging that enables objective assessment of whole ultrasonic plaque structure is more sensitive that single longitudinal view sonography for differentiating between ultrasonic structure of symptomatic and asymptomatic plaque.


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