Naslov
3D ultrazvuk Willisovog kruga i vertebrobazilarnog sliva
(3D ultrasound of the Willis circle and the vertebrobasilar system)

Autori
Lovrenčić Huzjan, Arijana ; Kesić, Miljenka ; Roje Bedeković, Marina ; Lisak, Marijana ; Zavoreo-Husta, Iris ; Demarin, Vida

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
Acta clinica Croatica, Vol. 43 No. 3 - Supplement 1 / - Zagreb, 2004, 194-194

Skup
Second Congress of Croatian Society for Neurovascular Disorders of Croatian Medical Association Posters = Drugi kongres Hrvatskoga društva za neurovaskularne poremećaje Hrvatskoga liječničkog zbora

Mjesto i datum
Zagreb, Hrvatska, 14.10.2004. - 16.10.2004

Vrsta sudjelovanja
Poster

Vrsta recenzije
Podatak o recenziji nije dostupan

Ključne riječi
3D ultrazvuk ; Willisov krug ; vertebrobazilarni sliv
(3D ultrasound ; Willis circle ; vertebrobasilar system)

Sažetak
Background and purpose Transcranial colour-coded sono- graphy (TCCS) is used for evaluation of the Willis circle and vertebrobasilar system (VBS). Freehanded noncontrast three- dimensional ultrasound (3D US) enables reconstructions from transcranial power Doppler (PD) imaging of the Willis circle and VBS. Patients and methods We displayed the 3D images of the Willis circle and VBS. Data acquisition was performed using 2.5 MHz sector transducer (Aloka Prosound SSD-5500), free- handed during 10 seconds, allowing PD sonography and post processed (Tom Tec imaging systems). The technique was applied in 10 patients. Results One patient was excluded due to inadequate bone win- dow. TCCS enabled visualization of only colour coded flow of all circle of Willis vessels simultaneously in one patient and all vessels of the VBS was not possible at all. Post processing and skilled rotation 3D PD data sets enabled visualization of the one side of the Willis circle in all patients but two, where only part of one arterial segment couldn't be displayed. Visualization of the communicating arteries or collateral flow in patients with occlusive disease was good. Hemodynamic analysis in TCCS was indispensable for occlusive disease evaluation and collate- ral pathways interpretation. 3D PD enabled visualization of all three vessels of the VBS simultaneously, allowing interpretation of the BA origin (neither patient had occlusive disease of that segment). Conclusions Noncontrast 3D US enables display of one side of the Willis circle or VBS simultaneously in most patients. TCCS and hemodynamic analysis is needed for the evaluation of the occlusive disease and interpretation of the collateral pathways.

Izvorni jezik
Hrvatski, engleski

Znanstvena područja
Kliničke medicinske znanosti

POVEZANOST RADA