公开(公告)号：WO2009070717A1

公开(公告)日：2009-06-04

申请号：PCT/US2008/084945

申请日：2008-11-26

Applicant: KIM, Jae, K. ,  HAJIAN, Arsen, J.

Inventor： KIM, Jae, K. ,  HAJIAN, Arsen, J.

IPC: G01R33/56

CPC classification number: G01R33/56 ,  G01R33/441 ,  G01R33/5608

Abstract: This document describes a general system for noise reduction, as well as a specific system for Magnetic Resonance Imaging (MRI) and Nuclear Quadrupole Resonance (NQR). The general system, which is called Calculated Readout by Spectral Parallelism (CRISP), involves reconstruction and recombination of frequency-limited broadband data using separate narrowband data channels to create images or signal profiles. A multi-channel CRISP system can perform this separation using (1) frequency tuned hardware, (2) a frequency filter-bank (or equivalent), or (3) a combination of implementations (1) and (2). This system significantly reduces what we call cross-frequency noise, thereby increasing signal-to-noise-ratio (SNR). A multi-channel CRISP system applicable to MRI and NQR are described.

Abstract translation: 本文件描述了用于降噪的通用系统，以及用于磁共振成像（MRI）和核四极共振（NQR）的特定系统。 通过光谱并行度（CRISP）称为计算读数的通用系统涉及使用单独的窄带数据通道重建和重组频率限制的宽带数据，以创建图像或信号分布。 多通道CRISP系统可以使用（1）频率调谐硬件，（2）频率滤波器组（或等效）或（3）实现（1）和（2）的组合来执行该分离。 该系统显着降低了所谓的交叉频率噪声，从而提高了信噪比（SNR）。 描述了适用于MRI和NQR的多通道CRISP系统。

公开(公告)号：WO2011091502A1

公开(公告)日：2011-08-04

申请号：PCT/CA2010/001598

申请日：2010-10-01

Applicant: THUNDER BAY REGIONAL RESEARCH INSTITUTE ,  CENKO, Andrew, T. ,  MEADE, Jeffrey, T. ,  HAJIAN, Arsen, R. ,  KIM, Jae, K.

Inventor： CENKO, Andrew, T. ,  MEADE, Jeffrey, T. ,  HAJIAN, Arsen, R. ,  KIM, Jae, K.

IPC: G01N21/47 ,  G01N21/21 ,  G01S17/36 ,  G02B21/00 ,  G02B3/04 ,  G02B27/10

CPC classification number: G01N21/4795 ,  A61B5/0066 ,  G01B9/02056 ,  G01B9/02091 ,  G02B27/283

Abstract: An optical imaging device which receives an optical collimated input beam, the device having a pair of axicon lenses through which a beam is directed to generate a collimated ring beam, wherein the ring beam is scattered from a substance to generate a return beam, and to bypass a reflector that redirects the return beam to prevent the return beam from interfering with the input beam; and a detector which detects an image projected by the return beam.

Abstract translation: 一种光学成像装置，其接收光学准直输入光束，该装置具有一对透镜透镜，光束通过该对映射透镜被引导以产生准直环形光束，其中环形光束从物质散射以产生返回光束，并且 绕过重定向返回光束的反射器，以防止返回光束干扰输入光束; 以及检测器，其检测由返回光束投影的图像。