Coronary angiography dissection: Difference between revisions
Rim Halaby (talk | contribs) |
Rim Halaby (talk | contribs) |
||
| (2 intermediate revisions by the same user not shown) | |||
| Line 6: | Line 6: | ||
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]] ([[NHLBI|National Heart Lung and Blood Institute]]) scheme, dissection is defined as an [[lumen|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. | 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]] ([[NHLBI|National Heart Lung and Blood Institute]]) scheme, dissection is defined as an [[lumen|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. | ||
== | ==Examples== | ||
===Type A=== | ===Type A=== | ||
Radiolucent areas within the [[coronary]] [[lumen]] during [[contrast]] [[injection]], with minimal or no persistence of [[contrast]] after [[dye]] has cleared. | Radiolucent areas within the [[coronary]] [[lumen]] during [[contrast]] [[injection]], with minimal or no persistence of [[contrast]] after [[dye]] has cleared. | ||
Click '''[[Coronary angiography dissection type A|here]]''' for angiography examples on type A coronary artery dissection. | |||
===Type B=== | ===Type B=== | ||
Parallel tracts or double [[lumen]] separated by a radiolucent area during [[contrast]] [[injection]], with minimal or no persistence after [[dye]] has cleared. | Parallel tracts or double [[lumen]] separated by a radiolucent area during [[contrast]] [[injection]], with minimal or no persistence after [[dye]] has cleared. | ||
Click '''[[Coronary angiography dissection type B|here]]''' for angiography examples on type B coronary artery dissection. | |||
===Type C=== | ===Type C=== | ||
Contrast outside the coronary lumen, with persistence of [[contrast]] in the area after [[dye]] has cleared. | Contrast outside the coronary lumen, with persistence of [[contrast]] in the area after [[dye]] has cleared. | ||
Click '''[[Coronary angiography dissection type C|here]]''' for angiography examples on type C coronary artery dissection. | |||
===Type D=== | ===Type D=== | ||
Spiral luminal filling defects frequently with extensive [[contrast]] staining of the [[vessel]]. | Spiral luminal filling defects frequently with extensive [[contrast]] staining of the [[vessel]]. | ||
Click '''[[Coronary angiography dissection type D|here]]''' for angiography examples on type D coronary artery dissection. | |||
===Type E=== | ===Type E=== | ||
New persistent filling defectsthat may be caused by [[thrombus]]. | New persistent filling defectsthat may be caused by [[thrombus]]. | ||
Click '''[[Coronary angiography dissection type E|here]]''' for angiography examples on type E coronary artery dissection. | |||
===Type F=== | ===Type F=== | ||
These are non A – E dissection types that lead to impaired flow or total [[occlusion]] of the [[coronary artery]]. | These are non A – E dissection types that lead to impaired flow or total [[occlusion]] of the [[coronary artery]]. | ||
Click '''[[Coronary angiography dissection type F|here]]''' for angiography examples on type F coronary artery dissection. | |||
==References== | ==References== | ||
Latest revision as of 19:20, 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.
Examples
Type A
Radiolucent areas within the coronary lumen during contrast injection, with minimal or no persistence of contrast after dye has cleared.
Click here for angiography examples on type A coronary artery dissection.
Type B
Parallel tracts or double lumen separated by a radiolucent area during contrast injection, with minimal or no persistence after dye has cleared.
Click here for angiography examples on type B coronary artery dissection.
Type C
Contrast outside the coronary lumen, with persistence of contrast in the area after dye has cleared.
Click here for angiography examples on type C coronary artery dissection.
Type D
Spiral luminal filling defects frequently with extensive contrast staining of the vessel.
Click here for angiography examples on type D coronary artery dissection.
Type E
New persistent filling defectsthat may be caused by thrombus.
Click here for angiography examples on type E coronary artery dissection.
Type F
These are non A – E dissection types that lead to impaired flow or total occlusion of the coronary artery.
Click here for angiography examples on type F coronary artery dissection.