Coronary artery eccentricity: Difference between revisions
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==Definition== | ==Definition== | ||
Coronary lesions were morphologically classified as follows by a consensus of the same three angiographers on the basis of qualitative analysis of each lesion in at least two projections: | Coronary lesions were morphologically classified as follows by a consensus of the same three angiographers on the basis of qualitative analysis of each lesion in at least two projections:<ref>{{Cite journal | last1 = Ambrose | first1 = JA. | last2 = Winters | first2 = SL. | last3 = Stern | first3 = A. | last4 = Eng | first4 = A. | last5 = Teichholz | first5 = LE. | last6 = Gorlin | first6 = R. | last7 = Fuster | first7 = V. | title = Angiographic morphology and the pathogenesis of unstable angina pectoris. | journal = J Am Coll Cardiol | volume = 5 | issue = 3 | pages = 609-16 | month = Mar | year = 1985 | doi = | PMID = 3973257 }}</ref> | ||
{| {{table}} | {| {{table}} | ||
| style="background:#f0f0f0; font-size:100%"|'''Type''' | | style="background:#f0f0f0; font-size:100%"|'''Type''' | ||
| style="background:#f0f0f0; font-size:100%"|'''Definition''' | | style="background:#f0f0f0; font-size:100%"|'''Definition''' | ||
| rowspan="4" | [[File:Eccentricity-Types.jpg|thumb|300px|Types of | | rowspan="4" | [[File:Eccentricity-Types.jpg|thumb|300px|Types of Stenoses]] | ||
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| style="font-size:90%"| Concentric stenosis || style="font-size:90%" | Symmetric narrowing of a coronary artery. The borders of this lesion were smooth or only slightly irregular. | | style="font-size:90%"| Concentric stenosis || style="font-size:90%" | Symmetric narrowing of a coronary artery. <BR> The borders of this lesion were smooth or only slightly irregular. | ||
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| style="font-size:90%"| Eccentric stenosis || style="font-size:90%" | Asymmetric narrowing of a coronary artery. Two subgroups of eccentric lesions were categorized: <BR> ''Type I | | style="font-size:90%"| Eccentric stenosis || style="font-size:90%" | <BR> Asymmetric narrowing of a coronary artery. <BR> Two subgroups of eccentric lesions were categorized: <BR> '''''Type I eccentric lesion''''': any asymmetric stenosis with smooth borders and a broad neck. <BR> '''''Type II eccentric lesion''''': an asymmetric stenosis usually in the form of a convex intraluminal obstruction with a narrow base or neck due to one or more overhanging edges or borders that were very irregular or scalloped. <BR><BR> | ||
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| style="font-size:90%"| Multiple irregularities || style="font-size:90%" | Three or more serial and severe (≥70%) closely spaced obstructions in a coronary artery. This classification also included coronary arteries with severe diffuse irregularities or arteries in which the segment of a coronary artery between two severe obstructions also exhibited significant diffuse luminal irregularities. | | style="font-size:90%"| Multiple irregularities || style="font-size:90%" | Three or more serial and severe (≥70%) closely spaced obstructions in a coronary artery. <BR> This classification also included coronary arteries with severe diffuse irregularities or arteries in which the segment of a coronary artery between two severe obstructions also exhibited significant diffuse luminal irregularities. | ||
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Latest revision as of 04:15, 1 December 2015
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Coronary Angiography | |
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General Principles | |
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Anatomy & Projection Angles | |
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Normal Anatomy | |
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Anatomic Variants | |
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Projection Angles | |
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Epicardial Flow & Myocardial Perfusion | |
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Epicardial Flow | |
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Myocardial Perfusion | |
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Lesion Complexity | |
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ACC/AHA Lesion-Specific Classification of the Primary Target Stenosis | |
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Lesion Morphology | |
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Vanessa Cherniauskas, M.D. [2]
Overview
Definition
Coronary lesions were morphologically classified as follows by a consensus of the same three angiographers on the basis of qualitative analysis of each lesion in at least two projections:[1]
| Type | Definition |  |
| Concentric stenosis | Symmetric narrowing of a coronary artery. The borders of this lesion were smooth or only slightly irregular. | |
| Eccentric stenosis | Asymmetric narrowing of a coronary artery. Two subgroups of eccentric lesions were categorized: Type I eccentric lesion: any asymmetric stenosis with smooth borders and a broad neck. Type II eccentric lesion: an asymmetric stenosis usually in the form of a convex intraluminal obstruction with a narrow base or neck due to one or more overhanging edges or borders that were very irregular or scalloped. | |
| Multiple irregularities | Three or more serial and severe (≥70%) closely spaced obstructions in a coronary artery. This classification also included coronary arteries with severe diffuse irregularities or arteries in which the segment of a coronary artery between two severe obstructions also exhibited significant diffuse luminal irregularities. |