Abstract 2055: A Fingertip-Mounted Ultrasound Probe for Open-Chest Echocardiographic Imaging During Heart Surgery: Pilot Studies with a New Scanning Method
Background: We report a newly developed fingertip-mounted ultrasound probe (SonicEye®), which has been applied to an open-chest intraoperative imaging study. This probe is small, flexible, and quickly detachable. Its intuitive positioning makes it easy to acquire images in standard as well as unique views including views from the diaphragmatic surface of the left ventricle and behind the left atrium with a “heads up” that can be easily viewed by the surgeon while looking at the heart and the probe.
Methods: In an open-chest study of two 12–14 kg piglets, the finger-mounted (11 mm radius, 4 – 6 MHz) and a conventional phased array ultrasound probe (Siemens 7V3C, 4 – 6 MHz) were used for scanning on a Siemens Cypress system. Images were recorded and analyzed for quality of image offline.
Results: The fingertip-mounted ultrasound probe had the same performance as the conventional ultrasound probe as regards to image quality and Doppler performance. Furthermore, the probe could provide unique views from behind the left atrium and/or under the diaphragmatic surface of the left ventricle that even TEE does not match.
Conclusions: The fingertip-mounted probe was able to capture high quality images during our study. This probe is easy to wear and provides high resolution unique images which should be useful for intraoperative evaluation of cardiac repairs.