Performance characteristics of an interventional multispectral photoacoustic imaging system for guiding minimally invasive procedures.

ABSTRACT: Precise device guidance is important for interventional procedures in many different clinical fields including fetal medicine, regional anesthesia, interventional pain management, and interventional oncology. While ultrasound is widely used in clinical practice for real-time guidance, the image contrast that it provides can be insufficient for visualizing tissue structures such as blood vessels, nerves, and tumors. This study was centered on the development of a photoacoustic imaging system for interventional procedures that delivered excitation light in the ranges of 750 to 900 nm and 1150 to 1300 nm, with an optical fiber positioned in a needle cannula. Coregistered B-mode ultrasound images were obtained. The system, which was based on a commercial ultrasound imaging scanner, has an axia

SUBMITTER: Xia W 

PROVIDER: S-EPMC5217184 | biostudies-literature | 2015 Aug

REPOSITORIES: biostudies-literature