Coronary artery eccentricity

Coronary Angiography
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General Principles Overview Historical Perspective Contraindications Appropriate Use Criteria for Revascularization Complications Technique Film Quality
Anatomy & Projection Angles
Normal Anatomy Coronary arteries Dominance Right System Left System Left Main Left Anterior Descending Circumflex Median Ramus
Anatomic Variants Separate Ostia Anomalous Origins Case Example Fistula
Projection Angles Standard Views Left Coronary Artery Right Coronary Artery
Epicardial Flow & Myocardial Perfusion
Epicardial Flow TIMI Frame Count TIMI Flow Grade TIMI Grade 0 Flow TIMI Grade 1 Flow TIMI Grade 2 Flow TIMI Grade 3 Flow TIMI Grade 4 Flow Pulsatile Flow Deceleration
Myocardial Perfusion TIMI Myocardial Perfusion Grade TMP Grade 0 TMP Grade 0.5 TMP Grade 1 TMP Grade 2 TMP Grade 3
Lesion Complexity
ACC/AHA Lesion-Specific Classification of the Primary Target Stenosis
Preprocedural Lesion Morphology Eccentricity Irregularity Ulceration Intimal Flap Aneurysm Sawtooth Pattern Length Ostial location Angulation Proximal tortuosity Degenerated SVG Calcification Total occlusion Coronary Artery Thrombus TIMI Thrombus Grade TIMI Thrombus Grade 0 TIMI Thrombus Grade 1 TIMI Thrombus Grade 2 TIMI Thrombus Grade 3 TIMI Thrombus Grade 4 TIMI Thrombus Grade 5 TIMI Thrombus Grade 6
Lesion Morphology Quantitative Coronary Angiography Definitions of Preprocedural Lesion Morphology Irregular Lesion Disease Extent Arterial Foreshortening Infarct Related Artery Restenosis Degenerated SVG Collaterals Aneurysm Bifurcation Trifurcation Ulceration
Left ventriculography
Technique Quantification of LV Function Quantification of Mitral Regurgitation

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Vanessa Cherniauskas, M.D. [2]

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:

Type	Definition	Types of Stenoses
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 ccentric 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.

References

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