+ Resolve Article
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter

+ Translate
+ Subscribe to Site Feed
GeoScience Most Shared ContentMost Shared Content

Spiral CT angiography and selective digital subtraction angiography of internal carotid artery stenosis

, : Spiral CT angiography and selective digital subtraction angiography of internal carotid artery stenosis. Ajnr. American Journal of Neuroradiology 17(1): 89-94

PURPOSE: To determine whether spiral CT angiography allows accurate, quantitative evaluation of anatomic abnormalities, including detection of additional lesions, delineation of plaque morphology, and estimation of degree of internal carotid artery stenosis. METHODS: Spiral CT angiography with a maximum intensity projection technique was compared with selective digital subtraction angiography (DSA) in 92 carotid arteries. The category of stenosis was determined according to the North American Symptomatic Carotid Endarterectomy Trial: mild (0% to 29%), moderate (30% to 69%), severe (70% to 99%), and occlusion (100%). RESULTS: In 78 (85%) of the 92 cases, spiral CT angiography and selective DSA demonstrated the same degree of stenosis. All occlusions (n = 19) were diagnosed correctly with spiral CT angiography. Spiral CT angiography agreed with selective DSA in the classification of stenosis in 59% of the group with mild stenosis, in 82% of the group with moderate stenosis, and in 90% of the group with severe stenosis. In the groups with mild (n = 13), moderate (n = 9), and severe (n = 27) stenosis, correlation of spiral CT angiography with selective DSA was significant. Calcified plaques were readily diagnosed with the use of spiral CT angiography but delineation of ulcers was poor. Tandem lesions were not visible owing to the limited coverage. CONCLUSIONS: Spiral CT angiography is useful for the detection of proximal internal carotid stenosis that are greater than 30%. Depiction of mild stenoses appears to be limited. CT is superior for the detection of calcified plaques but it is not useful for the detection of ulcers.


PMID: 8770255

Other references

Li, Z.Z., 1986: The present level and improvement of wheat quality in China. Standards for wheat seed quality, the present level of quality and the disparities which occur and the objectives involved in the improvement of quality are discussed.

Lagardère, B., 1971: Three frequent digestive parasitoses. Soins; la Revue de Reference Infirmiere 16(10): 449-456

Sitchenko, N.N.; Ostapenko, D.P., 1976: Pirimor against virus vectors. The authors briefly record tests in greenhouses in the Ukraine, USSR, in 1974 in which a British preparation of pirimicarb (Pirimor) gave excellent control of aphid virus vectors on potato. The product contained 50% toxicant and was used at 0.05%....

Schreibman M.P.; Margolis Kazan H.; Halpern Sebold L., 1982: Immuno reactive gonadotropin and lhrh in the pituitary gland of neo natal platyfish xiphophorus maculatus. An immunoperoxidase method was used to localize LHRH and gonadotropin GTH in neonatal (1, 3, 6 and 9 day old) platyfish (X. maculatus). Immunoreactive (ir-) GTH.beta. and ir-LHRH are found in cells of the 2 extreme lateral regions of the caudal pa...

Bailey, I.L.; Tuan, K.M.; Fitz, S.N.; Grisham, J.D.; Kim, J.A.; Murabayashi, C.; Yang, D., 2001: Dyslexia and display screen color. IOVS 42(4): S850, March 15

Lecoq, R.; Chauchard, P.; Mazoue, H., 1948: Vitamin P (or C3) activity. The relation between vitamins C, P and K is discussed with reference to their effects on neuromuscular disturbances due to upset of the acidbase equilibrium. By the chronaximetric method it was demonstrated that substances with vitamin P activity...

Chen, Y.P.; Yang, Y.J.; Wu, X.D.; Wang, Z.L., 2006: Preparation of monoclonal antibodies against West Nile virus envelope protein domain.. To prepare monoclonal antibodies against West Nile virus (WNV) envelope protein domain. BALB/c mice were immunized with recombinant antigen of West Nile virus envelope protein domain, and the spleen cells of the mice were used to prepare the monoc...

Krumbach, T., 1917: Zur Naturgeschichte der Singicadenim Roten lstrien. Zoologischer Anzeiger Leipzig, 48 241-250

Safronov S.G., 1989: Fecundity and peculiarities of changes in the female reproductive system of calanus glacialis copepoda calanoida. Data are given on the fecundity and development of sexual products of C. glacialis females. The fecundity varied from 630 to 1350 ovicells, on the average 944 .+-. 14. They spawn not at one time but by batches. The state of the female reproductive...

Mrozek-Budzyn, D., 2002: The reasons of low performance and delaying in the compulsory vaccinations of children. The methods of research. Regional differences in realisation of compulsory vaccinations of children in Poland are observed. The alarming low vaccine coverage had place in province of Cracow. The aim of the study was to explain the reasons of that situation in this area. P...