Clinical Neuroscience

[The correlation between the calcium and water content and the ultrasonic imaging of carotid stenotic processes]

FÜLESDI Béla1, KÁPOSZTA Zoltán1, HEGEDŰS Katalin1, BACSÓ József2, CSIBA László1

JULY 20, 1994

Clinical Neuroscience - 1994;47(07-08)

[B-mode ultrasound images were recorded and densitometrically evaluated from the cervical segment of the carotid arteries of moribund patients. After the death of the patients the bifurcations of the carotis arteries were removed. Water and calcium content of the normal vessel wall, the thrombi and the plaques were determined with tissue drying and with X-ray spectroscopy. Water and calcium content of the pathological lesions were compared to optical density values of the identical location on B-mode images. Calcium content of the plaques were 10 times higher (mean+SD: 35176+44756 ppm.) than that of normal vessel wall (mean+SD: 2728+2660 ppm.). Water content in plaques was 10% lower than in the normal vessel wall. Inverse relationship was found between water- and Ca-content in the normal vessel wall, thrombi and plaques. The autors suggest, that the inverse relationship between water and Ca-content in the thrombi can be explained by the maturation of the thrombi. Densitometric measurements revealed higher optical density (echogenity) in plaques than in thrombi. No correlation was found between Ca- and water content and optical density of plaques. The authors recommend further measurements as calcium content is assumed to correlate with echogenity in plaques with homogenous echostructure.]

AFFILIATIONS

  1. Debreceni Orvostudományi Egyetem Ideg- és Elmegyógyászati Klinika, Debrecen
  2. Magyar Tudományos Akadémia Atommagkutató Intézete, Debrecen

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