Anatomic and hemodynamic imaging using a new vector phased-array intracardiac catheter.
BACKGROUND
We used a new vector, phased-array intracardiac catheter (AcuNav) with complete 2-dimensional imaging and Doppler capabilities to describe a systematic approach for a detailed anatomic and hemodynamic cardiac assessment.


METHODS
In 14 dogs, the intracardiac echocardiographic catheter was inserted through an 11F venous access and placed in the right side of the heart to perform a comprehensive ultrasound examination of the heart.


RESULTS
Imaging was successful in all dogs. All 4 cardiac chambers and valves were imaged clearly in multiple orientations. Additional structures seen included the vena cavae, coronary sinus, right and left appendages, interarterial septum, coronary arteries, and all 4 pulmonary veins. Intra-abdominal structures, such as the aorta, liver, and hepatic veins were also visualized. A complete Doppler examination of intracardiac and paracardiac flows was also possible.


CONCLUSIONS
AcuNav is a unique intracardiac imaging device, which allows comprehensive structural and functional cardiac assessment.
Li
Peng
P
Division of Cardiology, Department of Internal Medicine, University of Michigan Health System, Ann Arbor, MI, USA.
Dairywala
Ismail T
IT
Liu
Zheng
Z
Stewart
Scott R
SR
Mathew
Biju
B
Bowie
Dana
D
Vannan
Mani A
MA
D000465:Algorithms; D000818:Animals; D006328:Cardiac Catheterization / Q000295:instrumentation* / Q000379:methods; D003326:Coronary Circulation / Q000502:physiology; D004285:Dogs; D004452:Echocardiography / Q000295:instrumentation; D005240:Feasibility Studies; D006321:Heart / Q000033:anatomy & histology