BACKGROUND: Intracardiac echocardiography (ICE) has had useful but limited use during interventional procedures because of technologic limitations. We used a novel phased-array ICE device (AcuNav) with 2-dimensional sector imaging and full Doppler capability to see whether it could guide cardiac interventions without fluoroscopy. METHODS: Twelve dogs were studied, and we performed atrial septostomy, tricuspid, and pulmonary valve disruption using only ICE. Preinterventional and postinterventional anatomic and hemodynamic data were noted. RESULTS: All attempts were successful in the placement of the ICE catheter (100%). We attempted septostomy on 11 dogs and were successful 8 times (73%). Tricuspid valve disruption and balloon dilatation were performed successfully on 5 dogs (100%). We attempted pulmonary valve disruption on 4 dogs and could always correctly place the guidewire (100%). We performed pulmonary valve balloon dilatation on one dog (25%). A comprehensive echocardiographic examination was always possible. CONCLUSION: This new ICE device can guide interventions without fluoroscopy. However, further studies are needed to evaluate whether it can replace fluoroscopy.
BACKGROUND: Intracardiac echocardiography (ICE) has had useful but limited use during interventional procedures because of technologic limitations. We used a novel phased-array ICE device (AcuNav) with 2-dimensional sector imaging and full Doppler capability to see whether it could guide cardiac interventions without fluoroscopy. METHODS: Twelve dogs were studied, and we performed atrial septostomy, tricuspid, and pulmonary valve disruption using only ICE. Preinterventional and postinterventional anatomic and hemodynamic data were noted. RESULTS: All attempts were successful in the placement of the ICE catheter (100%). We attempted septostomy on 11 dogs and were successful 8 times (73%). Tricuspid valve disruption and balloon dilatation were performed successfully on 5 dogs (100%). We attempted pulmonary valve disruption on 4 dogs and could always correctly place the guidewire (100%). We performed pulmonary valve balloon dilatation on one dog (25%). A comprehensive echocardiographic examination was always possible. CONCLUSION: This new ICE device can guide interventions without fluoroscopy. However, further studies are needed to evaluate whether it can replace fluoroscopy.
Authors: Stephen J Hsu; Brian J Fahey; Douglas M Dumont; Patrick D Wolf; Gregg E Trahey Journal: IEEE Trans Ultrason Ferroelectr Freq Control Date: 2007-05 Impact factor: 2.725
Authors: Douglas N Stephens; Jonathan Cannata; Ruibin Liu; Jian Zhong Zhao; K Kirk Shung; Hien Nguyen; Raymond Chia; Aaron Dentinger; Douglas Wildes; Kai E Thomenius; Aman Mahajan; Kalyanam Shivkumar; Kang Kim; Matthew O'Donnell; David Sahn Journal: IEEE Trans Ultrason Ferroelectr Freq Control Date: 2008-03 Impact factor: 2.725
Authors: D N Stephens; J Cannata; Ruibin Liu; Jian Zhong Zhao; K K Shung; Hien Nguyen; R Chia; A Dentinger; D Wildes; K E Thomenius; A Mahajan; K Shivkumar; Kang Kim; M O'Donnell; A Nikoozadeh; O Oralkan; P T Khuri-Yakub; D J Sahn Journal: IEEE Trans Ultrason Ferroelectr Freq Control Date: 2008-07 Impact factor: 2.725
Authors: Amin Nikoozadeh; Ira O Wygant; Der-Song Lin; Omer Oralkan; A Sanli Ergun; Douglas N Stephens; Kai E Thomenius; Aaron M Dentinger; Douglas Wildes; Gina Akopyan; Kalyanam Shivkumar; Aman Mahajan; David J Sahn; Butrus T Khuri-Yakub Journal: IEEE Trans Ultrason Ferroelectr Freq Control Date: 2008-12 Impact factor: 2.725
Authors: Douglas N Stephens; Matthew O'Donnell; Kai Thomenius; Aaron Dentinger; Douglas Wildes; Peter Chen; K Kirk Shung; Jonathan Cannata; Pierre Khuri-Yakub; Omer Oralkan; Aman Mahajan; Kalyanam Shivkumar; David J Sahn Journal: J Ultrasound Med Date: 2009-02 Impact factor: 2.153