The presence of intracoronary positive and negative contrast jets on angiography can help identify the severity and morphology of very short, membranous coronary stenoses, as confirmed by IVUS.
Angiographic contrast jets may flag very short membranous stenoses; case report leaves open prospective validation before clinical use.
A very short coronary stenosis is somewhat difficult to correctly evaluate by conventional coronary angiography. The demonstration of positive and negative contrast jets observed just distal to the lesion is helpful in identifying the severity of the disease causing this disorder. In the present case, intravascular ultrasound confirmed the presence of a very short stenosis and membranous disease at the site of the lesion. The presence of intracoronary contrast jets reflects the morphology and severity of disease of the membranous type, although the reason for the appearance of contrast jets with this type of lesion should be sought.
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Ito et al. (2000) studied this question.
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