title: [Value of caudo-cranial and left anterior obleque projections in the angiographic study of the left coronary artery].
abstract: The use of new apparatus which offers an unlimited choice of projections in the frontal and sagittal planes is a great step forward in the radiological investigation of the coronary arterial tree. The results obtained with the left anterior oblique caudo-cranial projection have been reported. In a series of 100 consecutive coronary arteriographies, this method showed up lesions which were passed over or unnoticed, or showed up the magnitude of stenoses which had been underestimated in the standard projections, in 24 cases. From among these, it was possible to show up 6 stenoses which were at or above the 75% level; 4 of these were on the diagonal artery, 1 on the anterior desceinding artery, and one on the left coronary trunk. In 16 other patients it confirmed the degree of stenosis, which had been uncertain when assessed by the usual technique. All in all, it gave useful information in 40% of cases. This new projection is especially useful for investigation the proximal parts of the branches of the trunk of the left coronary artery.
mesh_terms: D017023:Coronary Angiography; D003327:Coronary Disease / Q000000981:diagnostic imaging*; D006801:Humans; D008722:Methods; D013679:Technology, Radiologic / Q000295:instrumentation
vernacular_title: Intérêt de l'incidence caudo-craniale en oblique antérieure gauche dans l'étude angiographique de la coronaire gauche