RADULESCU EMIL GEORGE,HUANG SHENG WEN,ERKAMP RAMON QUIDO,JANKOVIC LADISLAV,SHI YAN,SHAHZAD KHALID
申请号：
IN8263/CHENP/2013
公开号：
IN2013CN08263A
申请日:
2013.10.11
申请国别(地区):
IN
年份:
2014
代理人:
摘要：
Functional imaging for localization in biological tissue entails measuring a response in the tissue (240) to electromagnetic radiation. A catheter (200) for real time monitoring of cardiac ablation is employed to distinguish a hemorrhage zone (232) from the sandwiching necrotic and healthy tissue or to distinguish exogenous photoacoustic contrast agent from bordering native tissue. A pair of wavelengths is selected for differential absorption (244) of the radiation in correspondingly the hemorrhage zone or where the contrast agent exists and relatively similar absorption elsewhere. Near infrared laser or LED light may be used photoacoustically to serially acquire (S310 S320) the two datasets to be compared each representative of a time waveform. Alternatively acquisition is for a pair of wavelength bands of microwave induced thermoacoustic data. In either case the members of the dataset pair are combined (110 122) by subtraction or division to effect the piece wise cancellation/enhancement for display (218) of the resulting signal in real time.
