Results 261 to 270 of about 19,695 (283)

Calcifications of the Medial Choroid in the Velum Interpositum: An Unrecognized Site of Physiologic Calcifications Evident on Multidetector Computed Tomography

World Neurosurgery, 2020
In adult patients undergoing multidetector computed tomography (CT) of the brain, we observed linear calcification along the deep venous system on thin (
Alexander C. Mamourian, Pallavi Gopal, Karapet Davtyan, Michael Kaiserian, Elizabeth C. Mamourian, Brad E. Zacharia   +5 more
openaire   +2 more sources

A comparative study of physiologic intracranial calcifications.

Pahlavi medical journal, 1978
It has been the impression of clinicians that pineal calcification is infrequent in Shiraz, Iran. In order to evaluate this clinical impression 2000 consecutive skul X-rays taken at Saadi Hospital, Shiraz, Iran, were reviewed for the presence of physiologic intracranial calcifications.
K, Abbassioun, B, Aarabi, M, Zarabi
openaire   +1 more source

[Calcifications in temporal arteries -- their morphogenesis in comparison to physiological osteogenesis].

Zeitschrift fur Kardiologie, 2003
Vascular calcification, traditionally regarded as a dystrophic process, has recently been interpreted as a bone-like biologically regulated phenomenon. Because temporal arteries which also contain calcifications are easily available from biopsies of older individuals with suspected giant cell arteritis, we studied the morphogenesis of this ...
W, Mohr, E, Görz
openaire   +2 more sources

Physiologic Calcification of the Pineal Gland in Children on Computed Tomography: Prevalence, Observer Reliability and Association with Choroid Plexus Calcification

Academic Radiology, 2006
To evaluate the prevalence of physiologic pineal calcification, estimate observer variability, and examine the association with choroid plexus calcification.A retrospective review of hard copy head computed tomography films of 242 patients age younger than 16 years by two independent observers.Physiologic pineal calcification was present in 20% of the ...
Anthony James, Doyle, Graeme D, Anderson
openaire   +2 more sources

[Intracranial physiological calcification on computed tomography (Part 1): Calcification of the pineal region].

No to shinkei = Brain and nerve, 1989
Of intracranial physiological calcification, common calcification of pineal region, choroid plexus of lateral ventricles and of basal ganglia was examined based on the frequency of occurrence of age and sex and type of CT scanners. Consecutive cases of 2877 (1450 males and 1427 females) underwent plain CT scanning were studied.
R, Kwak, F, Takeuchi, S, Ito, S, Kadoya
openaire   +1 more source

Morphogenesis of the Otoconia from the Viewpoint of Physiological Calcification.

Practica Oto-Rhino-Laryngologica, 1996
Although it is known that mammalian otoconia consist of calcium bicarbonate and organic materials, none of the protein components have been identified in mammals at the molecular level, and the mechanism of morphogenesis and calcification of the otoconia remains unclear.
openaire   +1 more source

Intracerebral calcifications, from physiological to pathological: what a radiologist should know?

2023
Learning objectives: -The objective of this study is to illustrate the different localizations of intracerebral calcifications in order to establish an etiological approach according to...
openaire   +1 more source

An improved 45Ca protocol for investigating physiological mechanisms in coral calcification

Marine Biology, 1995
A sensitive experimental protocol using cloned corals (hereafter “microcolonies”) of the branching scleractinian coral Stylophora pistillata and 45Ca has been developed to enable reproducible measurements of physiological and biochemical mechanisms involved in calcium transport and compartmentalization during coral calcification. Cloned S.
E. Tambutt�, D. Allemand, I. Bourge, J. -P. Gattuso, J. Jaubert   +4 more
openaire   +1 more source

[Hydroxyapatite. 3. Physiology of hydroxyapatite and bone calcification].

Archivio stomatologico, 1990
The authors give a wide review of literature about the precipitation of hydroxyapatite, with particular attention to the latter studies about the collagene X and its leading role during this process.
A, Malzone, L, Bottino, A, Velotti
openaire   +1 more source

Physiological and Radiological Implications of a Low Incidence of Pineal Calcification in Nigeria

Neuroendocrinology, 1972
In a retrospective study of 952 skull X-rays taken in a few Lagos hospitals, it was found that the over-all incidence of calcification of the pineal gland was surprisingly low: 5.04% compared with ...
G F, Daramola, A O, Olowu
openaire   +2 more sources