Title :
Strain imaging of vascular pathologies using a compliant balloon catheter
Author :
Choi, C.D. ; Skovoroda, A.R. ; Emelianov, S.Y. ; O´Donnell, M.
Author_Institution :
Dept. of Biomed. Eng., Michigan Univ., Ann Arbor, MI, USA
Abstract :
An integrated compliant silicone balloon catheter was developed to allow greater deformations in strain imaging with intravascular ultrasound. An Endosonics 64-element array was placed inside a compliant balloon catheter to capture real-time phase-sensitive radio frequency (rf) data during deformation experiments. A hard-soft rubber phantom, thrombus, and fibrotic plaque were imaged using the integrated compliant balloon/ultrasound catheter to produce strain images. The results show that an integrated compliant balloon/ultrasound catheter can apply large deformations at low pressures and image various vascular pathologies ex vivo. This catheter could serve as a multi-functional intravascular therapeutic device to guide angioplasty and stent deployment
Keywords :
biomechanics; biomedical transducers; biomedical ultrasonics; blood vessels; real-time systems; ultrasonic transducer arrays; Endosonics 64-element array; angioplasty; compliant balloon catheter; deformations; ex vivo; fibrotic plaque; hard-soft rubber phantom; integrated compliant silicone balloon catheter; intravascular ultrasound; large deformations; low pressures; multi-functional intravascular therapeutic device; real-time phase-sensitive radio frequency data; stent deployment; strain imaging; thrombus; ultrasound catheter; vascular pathologies; Arteries; Biomedical imaging; Capacitive sensors; Catheters; Elasticity; Imaging phantoms; Pathology; Phased arrays; Rubber; Ultrasonic imaging;
Conference_Titel :
Ultrasonics Symposium, 2000 IEEE
Conference_Location :
San Juan
Print_ISBN :
0-7803-6365-5
DOI :
10.1109/ULTSYM.2000.921665
