What type of vascular structure is catheterized in the image below?
Interventional Radiology
No
U
C
ANSWER: Pulmonary artery
EXPLANATION:
The fluoroscopic image of the chest provided demonstrates a right femoral approach catheterization of theleft main pulmonary artery(blue arrow) via the inferior vena cava (IVC) --> right atrium --> right ventricle --> main pulmonary artery.
An understanding of the catheter course and image field anatomy is required to assess IR case questions. The pulmonary artery is access for a variety of indications, including pulmonary artery thrombolysis in the setting of pulmonary embolism or embolization of pulmonary arteriovenous malformation.
WRONG ANSWERS:
Bronchial artery - most common anatomical presentation is 2 left and 1 right bronchial arteries branching off the thoracic aorta at the level of T5-T6.
Pulmonary vein - catheterization of the pulmonary vein is usually performed via an IVC approach crossing from the right atrium through the interatrial septum into draining left atrium.
Intercostal artery - branches off the thoracic aortic bilaterally that course along the inferior aspect of the ribs.
Coronary artery - originate from the root of the ascending aorta.
The fluoroscopic image of the chest demonstrates a right femoral approach catheterization of the left main pulmonary artery (blue arrow) via the inferior vena cava (IVC) --> right atrium --> right ventricle --> main pulmonary artery.
The fluoroscopic image of the chest demonstrates a right femoral approach catheterization of the left main pulmonary artery (blue arrow) via the inferior vena cava (IVC) --> right atrium --> right ventricle --> main pulmonary artery.
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