Author/Editor		Tetičkovič, Erih
Title		Tridimenzionalni prikaz vratnih in možganskih arterij z dvojno Dopplerjevo ultrasonografijo
Translated title		Three-dimensional presentation of cervical and cerebral arteries using duplex Doppler ultrasonography
Type		članek
Source		Med Razgl
Vol. and No.		Letnik 38, št. Suppl 5
Publication year		1999
Volume		str. 21-33
Language		slo
Abstract		The newest three-dimensional, completely digital duplex Doppler ultrasonography is an immense gain for neurosonography. On the basis of good B-scan, it is possible to demonstrate a blood vessel in three orthogonal planes: longitudinal, transverse and axial. Computer processing yields a three-dimensional vessel image. The possibility of "exposing" and artery in three dimensions in a chosen section, at a chosen depth and magnification, allows a more precise and complete analysis of the artery over its entire extent. Precise investigation of the intima with detection of even the smallest initial plaques offers new possibilities in the research of atherosclerosis, particularly in groups at risk. A detailed analysis of the plaques, including their structure, surface, assessment of size and volume, as well as observation of their movement, are possible. After a carotid thromboendartectomy, it is possible to follow carefully the process of intimal regeneration, to draw conclusions about the benefits of vascular prosthesis and to predict a possible restenosis. It is also apossible to monitor the process of recanalization during throbolytic theapy of complete arterial occlusion and observe the position and success of a stent. In the craniotomy approach, 3D intraoperative probes allow and intraoperative insight into various vascular malformations, aneurysms, vascular tumors and the success of surgical treatment.
Summary		Najsodobnejša tridimenzionalna, povsem digitalna, dvojna Dopplerjeva ultrasonografija s sistemom za prikaz upočasnjenih pretokov (power sistemom) pomeni veliko pridobitev za nevro-sonografijo. Na osnovi dobre B-slike je moč prikazati žilo v treh ortogonalnih ravninah: longitudinalni, transverzalni in horizontalni. Računalniška obdelava teh daje tridemenzionalno žilno sliko. Možnost "računalniškega odpiranja" arterije v izbranem segmentu, v izbrani globini ter s povečavo omogoča v tridimenzionalnem prikazu veliko natančnejšo in celovitejšo analizo arterije v njenem celotnem obsegu. Natančna preiskava intime z odkrivanjem tudi povsem majhnih, začetnih plakov daje nove možnosti v raziskavah ateroskleroze predvsem pri tveganih skupinah. Možna je podrobna analiza plakov, njihove strukture, površine, določitev njihove velikosti in prostornine ter opazovanje gibanja. Po karotidni trombendarterektomiji je moč natančno slediti procesu obnavljanja intime, sklerpati o supečŠnosti žilne proteze ter napovedovati morebitno ponovno zožitev. Slednje je moč tudi v procesu rekanalizacije pri trombolitičnem zdravljenju popolne arterijske zapore, prav tako opazovati položaj in uspečŠnost znotrajžilne opornice. 3D-intraoperativna sonda omogoča s pristopom skozi kraniotomijo medoperativni vpogled v različne žilne malformacije, anevrizme, žilne tumorje ter daje oceno uspešnosti kirurškega zdravljenja.
Descriptors		CAROTID ARTERIES CEREBRAL ARTERIES ULTRASONOGRAPHY, DOPPLER, DUPLEX