Title :
Nanoparticle contrast agents for Terahertz medical imaging
Author :
Oh, Seung Jae ; Maeng, Inhee ; Shin, Hee Jun ; Lee, Jaewon ; Kang, Jinyoung ; Haam, Seunjoo ; Huh, Yong-Min ; Suh, Jin-Suck ; Son, Joo-Hiuk
Author_Institution :
Brain Korea 21 Project for Med. Sci., Yonsei Univ., Seoul
Abstract :
We show in this study that nanoparticle composites can be used as contrast agents to enhance the sensitivity of terahertz medical imaging. The terahertz reflection signal increases by nearly 50 % for the sample with nanoparticles upon near infrared laser beam irradiation. This is due to the hyperthermia effect induced by surface plasma polaritons. This technique facilitates cancer diagnosis with a micron resolution.
Keywords :
biomedical imaging; cancer; hyperthermia; laser beam effects; nanocomposites; nanoparticles; polaritons; surface plasmons; terahertz wave imaging; tumours; cancer diagnosis; hyperthermia effect; nanoparticle composites; nanoparticle contrast agents; near infrared laser beam irradiation; surface plasma polaritons; terahertz medical imaging; terahertz reflection signal; Biomedical imaging; Cancer; Image resolution; Laser beams; Laser transitions; Magnetic resonance imaging; Medical diagnostic imaging; Nanoparticles; Neoplasms; Optical reflection;
Conference_Titel :
Infrared, Millimeter and Terahertz Waves, 2008. IRMMW-THz 2008. 33rd International Conference on
Conference_Location :
Pasadena, CA
Print_ISBN :
978-1-4244-2119-0
Electronic_ISBN :
978-1-4244-2120-6
DOI :
10.1109/ICIMW.2008.4665813
