Key result
A prototype 10-Fr 4-D intracardiac echocardiography catheter successfully imaged cardiac anatomy and devices in vivo, providing 3-D visualization not possible with current 2-D imaging catheters.
Why the study?
Does a prototype 10-Fr 4-D ICE catheter enable 3-D visualization of cardiac anatomy and devices in an animal model?
Does a prototype 10-Fr 4-D ICE catheter enable 3-D visualization of cardiac anatomy and devices in an animal model?
A novel prototype 10-Fr 4-D ICE catheter demonstrated the feasibility of real-time 3-D visualization of cardiac structures and procedural devices in an animal model, offering perspectives not possible with standard 2-D ICE.
May advance preclinical 3D intracardiac imaging; leaves open human translation and clinical utility.
We developed prototype real-time 3-D intracardiac echocardiography catheters with integrated micromotors, allowing internal oscillation of a low-profile 64-element, 6.2-MHz phased-array transducer in the elevation direction. Components were designed to facilitate rotation of the array, including a low-torque flexible transducer interconnect and miniature fixtures for the transducer and micromotor. The catheter tip prototypes were integrated with two-way deflectable 10-Fr catheters and used in in vivo animal testing at multiple facilities. The 4-D ICE catheters were capable of imaging a 90° azimuth by up to 180° elevation field of view. Volume rates ranged from 1 vol/sec (180° elevation) to approximately 10 vol/sec (60° elevation). We successfully imaged electrophysiology catheters, atrial septal puncture procedures, and detailed cardiac anatomy. The elevation oscillation enabled 3-D visualization of devices and anatomy, providing new clinical information and perspective not possible with current 2-D imaging catheters.
No takes yet. Share an insight, caveat, or question.
Lee et al. (2011) studied this question. 10-Fr ultrasound catheter with integrated micromotor for 4-D intracardiac echocardiography vs. Current 2-D imaging catheters was evaluated on Imaging capability (field of view, volume rates, and visualization of anatomy/devices). A prototype 10-Fr 4-D intracardiac echocardiography catheter successfully imaged cardiac anatomy and devices in vivo, providing 3-D visualization not possible with current 2-D imaging catheters.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: