New angiographic classification of Takayasu arteritis, Takayasu conference 199411
| Type | Vessel involvement |
|---|---|
| According to this classification system, involvement of the coronary or pulmonary arteries should be designated as C (+) or P (+), respectively. | |
| Type I | Branches from the aortic arch |
| Type IIa | Ascending aorta, aortic arch and its branches |
| Type IIb | Ascending aorta, aortic arch and its branches, thoracic descending aorta |
| Type III | Thoracic descending aorta, abdominal aorta, and/or renal arteries |
| Type IV | Abdominal aorta and/or renal arteries |
| Type V | Combined features of types IIb and IV |