一个有希望的诊断方法: 兆兆赫搏动了成像和光谱学

• 作者: Anil T Ahuja Emma Pickwell-MacPherson Ming Yiu Sy Yi-Xiang J Wang
• 来源期刊: 世界放射学杂志：英文版（电子版）
• 学科: 医学
• 关键词: BIOMEDICAL IMAGING SPECTROSCOPY TERAHERTZ
• 年，卷（期）: 2011,（3）
• 页码范围: 55-65
• 页数: 11页
• 分类号: R445.2

摘要

The terahertz band lies between the microwave and infrared regions of the electromagnetic spectrum.This radiation has very low photon energy and thus it does not pose any ionization hazard for biological tissues.It is strongly attenuated by water and very sensitive to water content.Unique absorption spectra due to intermolecular vibrations in this region have been found in different biological materials.These unique features make tera-hertz imaging very attractive for medical applications in order to provide complimentary information to existing imaging techniques.There has been an increasing interest in terahertz imaging and spectroscopy of biologically related applications within the last few years and more and more terahertz spectra are being reported.This paper introduces terahertz technology and provides a short review of recent advances in terahertz imaging and spectroscopy techniques,and a number of applications such as molecular spectroscopy,tissue characterization and skin imaging are discussed.