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Titolo:
Three-dimensional transcranial color-coded sonography of cerebral aneurysms
Autore:
Klotzsch, C; Bozzato, A; Lammers, G; Mull, M; Lennartz, B; Noth, J;
Indirizzi:
Univ Aachen, Rhein Westfal TH Aachen, Dept Neurol, Klinikum, D-52057 Aachen, Germany Univ Aachen Aachen Germany D-52057 ol, Klinikum, D-52057 Aachen, Germany Univ Aachen, Rhein Westfal TH Aachen, Dept Neuroradiol, Klinikum, D-52057 Aachen, Germany Univ Aachen Aachen Germany D-52057 ol, Klinikum, D-52057 Aachen, Germany Univ Aachen, Rhein Westfal TH Aachen, Dept Neurosurg, Klinikum, D-52057 Aachen, Germany Univ Aachen Aachen Germany D-52057 rg, Klinikum, D-52057 Aachen, Germany
Titolo Testata:
STROKE
fascicolo: 11, volume: 30, anno: 1999,
pagine: 2285 - 2290
SICI:
0039-2499(199911)30:11<2285:TTCSOC>2.0.ZU;2-4
Fonte:
ISI
Lingua:
ENG
Soggetto:
MAGNETIC-RESONANCE ANGIOGRAPHY; POWER DOPPLER ULTRASOUND; INTRACRANIAL ANEURYSMS; DUPLEX SONOGRAPHY; SUBARACHNOID HEMORRHAGE; DIAGNOSIS; VISUALIZATION; CT;
Keywords:
aneurysm; angiography; cerebral circulation; ultrasonography, Doppler, transcranial;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Clinical Medicine
Life Sciences
Citazioni:
29
Recensione:
Indirizzi per estratti:
Indirizzo: Klotzsch, C Univ Aachen, Rhein Westfal TH Aachen, Dept Neurol, Klinikum, D-52057 Aachen, Germany Univ Aachen Aachen Germany D-52057 , D-52057 Aachen, Germany
Citazione:
C. Klotzsch et al., "Three-dimensional transcranial color-coded sonography of cerebral aneurysms", STROKE, 30(11), 1999, pp. 2285-2290

Abstract

Background and Purpose-The role of 2-dimensional transcranial color-coded sonography (2D-TCCS) as a diagnostic tool in cases of vascular alteration is unquestioned. The skill of the operator, however, may be responsible for some intertrial variability. The clinical value of a new, workstation-based, 3D reconstruction system for TCCS was evaluated in patients with intracranial aneurysms. Methods-Thirty patients with 30 intracranial aneurysms were investigated (8 men, 22 women; mean+/-SD age 54+/-17 years). The TCCS examinations were performed with a 2-MHz probe using the power mode. The 3D system (3D-Echotech, Germany) consisted of an electromagnet, which induced a low-intensity magnetic field near the head of the patient. A magnetic position sensor was attached to the ultrasound probe and transmitted the spatial orientation of the probe to a workstation, which also received the corresponding 2D-imagesfrom the video-port of the duplex machine. The echo contrast enhancer D-galactose (Levovist, Schering, Germany) was used in all patients to improve the signal-to-noise ratio. All patients underwent presurgical digital subtraction angiography (DSA) to demonstrate the aneurysm. Results-Twenty-nine of 30 angiographically proven intracranial aneurysms (97%) were detected by 3D-TCCS. The aneurysmal diameter estimated by DSA ranged from 3 to 16 mm (mean 7.2+/-3.6 mm). A comparison of the 3 main diameters of each aneurysm revealed a correlation coefficient of 0.95 between DSA and 3D-TCCS, The 3D determination of the aneurysmal size by 2 experienced sonographers correlated with 0.96. Conclusions-3D-TCCS is a new, noninvasive method to investigate intracranial aneurysms. The differentiation between artifacts and true changes of thevessel anatomy is much easier in 3D-TCCS than in conventional 2D-TCCS, Thenew method yields an excellent correlation with the gold standard, DSA. Because the same 3D-TCCS data can be postprocessed by different investigators, it may be possible to improve reproducibility and increase the objectivity of transcranial color-coded duplex sonography.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 04/12/20 alle ore 18:38:54