Active Noise Control System for Reducing MR Noise
スポンサーリンク
概要
- 論文の詳細を見る
We propose an active noise control (ANC) system for reducing periodic noise generated in a high magnetic field such as noise generated from magnetic resonance imaging (MRI) devices (MR noise). The proposed ANC system utilizes optical microphones and piezoelectric loudspeakers, because specific acoustic equipment is required to overcome the high-field problem, and consists of a head-mounted structure to control noise near the users ears and to compensate for the low output of the piezoelectric loudspeaker. Moreover, internal model control (IMC)-based feedback ANC is employed because the MR noise includes some periodic components and is predictable. Our experimental results demonstrate that the proposed ANC system (head-mounted structure) can significantly reduce MR noise by approximately 30dB in a high field in an actual MRI room even if the imaging mode changes frequently.
- (社)電子情報通信学会の論文
- 2011-07-01
著者
-
Kurumi Yoshimasa
Department of Surgery, Shiga University of Medical Science
-
Kurumi Yoshimasa
Department Of Surgery Shiga University Of Medical Science
-
KAJIKAWA Yoshinobu
Faculty of Engineering Science, Kansai University
-
Tani Toru
Department Of Surgery Shiga University Of Medical Science
-
Kajikawa Yoshinobu
Faculty Of Engineering Science Kansai University
-
Kumamoto Masafumi
Faculty Of Engineering Science Kansai University
-
KIDA Masahiro
Faculty of Engineering Science, Kansai University
-
HIRAYAMA Ryotaro
Faculty of Engineering Science, Kansai University
-
Kida Masahiro
Faculty Of Engineering Science Kansai University
-
Hirayama Ryotaro
Faculty Of Engineering Science Kansai University
関連論文
- D-7-17 Statistical Volume Modeling of Liver
- Correlation between High Field MR Images and Histopathological Findings of Rat Transplanted Cancer Immediately after Partial Microwave Coagulation
- MR-guided microwave ablation for malignancies
- Magnetic Resonance-Guided Percutaneous Microwave Coagulation Therapy for Liver Metastases of Breast Cancer in a Case
- Alternate Biplanar MR Navigation for Microwave Ablation of Liver Tumors
- Open-Configuration MR-Guided Microwave Thermocoagulation Therapy for Metastatic Liver Tumors from Breast Cancer
- Software Tools for Interventional MR Guided Navigation for Thermal Ablation Procedure
- Interventional MR Guided Navigation for Thermal Ablation Procedure
- Feasibility of Microwave Ablation for MR-Guided Interstitial Thermal Therapy : An Experimental Study Using 2T MR System
- Linearization Ability Evaluation for Loudspeaker Systems Using Dynamic Distortion Measurement
- D-7-16 Parzen-Window Based Normalized Mutual Information for Image Registration
- 3D Image Registration and Its Application to Open-MR Scanner Based Liver Cancer Surgery(一般セッション(3),人の検出・計測・認識)
- 3D Image Registration and Its Application to Open-MR Scanner Based Liver Cancer Surgery(一般セッション(3),人の検出・計測・認識)
- 3D Image Registration and Its Application to Open-MR Scanner Based Liver Cancer Surgery
- Late resistance to adenoviral p53-mediated apoptosis caused by decreased expression of Coxsackie-adenovirus receptors in human lung cancer cells
- An Estimation Method of Parameters for Closed-box Loudspeaker System
- Clinical potential of an antitumor drug sensitivity test and diffusion-weighted MRI in a patient with a recurrent solid pseudopapillary tumor of the pancreas
- Bacterial Translocation as a Cause of Septic Shock in Humans: A Report of Two Cases
- PP104092 Beneficial effect of bile salt TUDC on warm ischemiareperfusion injury in rat liver
- Differences in emotional distress between breast tumor patients with emotional inhibition and those with emotional expression
- Sound Field Reproduction System Using Simultaneous Perturbation Method
- Indocyanine Green Fluorescence Imaging System for Sentinel Lymph Node Biopsies in Early Breast Cancer Patients
- Acoustic Echo Cancellation Using Sub-Adaptive Filter
- Linearization Ability Evaluation for Loudspeaker Systems Using Dynamic Distortion Measurement
- Laparoscopic sleeve gastrectomy leads to rapid improvement of glucose tolerance and insulin secretion with enhanced glucagon-like peptide (GLP-1) secretion
- Active Noise Control System for Reducing MR Noise