Coronary angiography dissection: Difference between revisions
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==Example== | ==Example== | ||
===Type A=== | |||
Radiolucent areas within the [[coronary]] [[lumen]] during [[contrast]] [[injection]], with minimal or no persistence of [[contrast]] after [[dye]] has cleared. | |||
===Type B=== | |||
Parallel tracts or double [[lumen]] separated by a radiolucent area during [[contrast]] [[injection]], with minimal or no persistence after [[dye]] has cleared. | |||
===Type C=== | |||
Contrast outside the coronary lumen, with persistence of [[contrast]] in the area after [[dye]] has cleared. | |||
===Type D=== | |||
Spiral luminal filling defects frequently with extensive [[contrast]] staining of the [[vessel]]. | |||
===Type E=== | |||
New persistent filling defectsthat may be caused by [[thrombus]]. | |||
===Type F=== | |||
These are non A – E dissection types that lead to impaired flow or total [[occlusion]] of the [[coronary artery]]. | |||
==References== | ==References== | ||
Revision as of 18:58, 2 September 2013
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Rim Halaby, M.D. [2]
Overview
A coronary artery dissection refers to a split or a tear in the wall of the artery which compresses or compromises the lumen of the artery reducing blood flow. According to the NHLBI (National Heart Lung and Blood Institute) scheme, dissection is defined as an intraluminal filling defect or flap associated with a hazy, ground-glass appearance. This category is sub-classified using the NHLBI system for grading dissection types into type A, B, C, D, E and F.
Example
Type A
Radiolucent areas within the coronary lumen during contrast injection, with minimal or no persistence of contrast after dye has cleared.
Type B
Parallel tracts or double lumen separated by a radiolucent area during contrast injection, with minimal or no persistence after dye has cleared.
Type C
Contrast outside the coronary lumen, with persistence of contrast in the area after dye has cleared.
Type D
Spiral luminal filling defects frequently with extensive contrast staining of the vessel.
Type E
New persistent filling defectsthat may be caused by thrombus.
Type F
These are non A – E dissection types that lead to impaired flow or total occlusion of the coronary artery.