[{"@context":"http:\/\/schema.org\/","@type":"BlogPosting","@id":"https:\/\/wiki.edu.vn\/jp\/wiki9\/archives\/285081#BlogPosting","mainEntityOfPage":"https:\/\/wiki.edu.vn\/jp\/wiki9\/archives\/285081","headline":"\u4f4e\u78c1\u5834\u6838\u78c1\u6c17\u5171\u9cf4\u753b\u50cf\u6cd5 – Wikipedia","name":"\u4f4e\u78c1\u5834\u6838\u78c1\u6c17\u5171\u9cf4\u753b\u50cf\u6cd5 – Wikipedia","description":"\u51fa\u5178\u306f\u5217\u6319\u3059\u308b\u3060\u3051\u3067\u306a\u304f\u3001\u811a\u6ce8\u306a\u3069\u3092\u7528\u3044\u3066\u3069\u306e\u8a18\u8ff0\u306e\u60c5\u5831\u6e90\u3067\u3042\u308b\u304b\u3092\u660e\u8a18\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u8a18\u4e8b\u306e\u4fe1\u983c\u6027\u5411\u4e0a\u306b\u3054\u5354\u529b\u3092\u304a\u9858\u3044\u3044\u305f\u3057\u307e\u3059\u3002\uff082016\u5e7410\u6708\uff09 \u4f4e\u78c1\u5834\u6838\u78c1\u6c17\u5171\u9cf4\u753b\u50cf\u6cd5\uff08\u3066\u3044\u3058\u3070\u304b\u304f\u3058\u304d\u304d\u3087\u3046\u3081\u3044\u304c\u305e\u3046\u307b\u3046\u3001\u82f1\u8a9e: Low field magnetic resonance imaging\uff09\u3068\u306f\u3001\u4f4e\u78c1\u5834\u3067\u6838\u78c1\u6c17\u5171\u9cf4\uff08nuclear magnetic resonance, NMR\uff09\u73fe\u8c61\u3092\u5229\u7528\u3057\u3066\u751f\u4f53\u5185\u306e\u5185\u90e8\u306e\u60c5\u5831\u3092\u753b\u50cf\u306b\u3059\u308b\u65b9\u6cd5\u3067\u3042\u308b\u3002\u4f4e\u78c1\u5834MRI\u3068\u7565\u79f0\u3055\u308c\u308b\u3002 \u5206\u985e\u3067 0.2\u00a0T \u672a\u6e80\u306e\u78c1\u5834\u3092\u5229\u7528\u3059\u308bMRI\u304c\u8a72\u5f53\u3059\u308b[1]\u3002MRI\u306e\u9ece\u660e\u671f\u306b\u306f\u9ad8\u78c1\u5834\u3092\u5f97\u308b\u4e8b\u304c\u56f0\u96e3\u3060\u3063\u305f\u305f\u3081\u3001\u4f4e\u78c1\u5834MRI\u88c5\u7f6e\u304c\u4e00\u822c\u7684\u3060\u3063\u305f\u30021982\u5e74\u306b\u6700\u521d\u306b\u8a3a\u7642\u7528\u306b\u65e5\u672c\u56fd\u5185\u306e\u75c5\u9662\u306b\u8a2d\u7f6e\u3055\u308c\u305f\u6c38\u4e45\u78c1\u77f3\u5f0f\u306eFONAR QED 80-\u03b1\u306e\u78c1\u5834\u5f37\u5ea6\u306f40\u00a0mT\u3067\u73fe\u5728\u306e\u57fa\u6e96\u3067\u306f\u4f4e\u78c1\u5834MRI\u306b\u5206\u985e\u3055\u308c\u308b\u88c5\u7f6e\u3060\u3063\u305f[2][3][4][5]\u3002 \u305d\u306e\u5f8c\u3001\u8d85\u4f1d\u5c0e\u78c1\u77f3\u306e\u5c0e\u5165\u306b\u3088\u308a\u3001\u753b\u8cea\u306e\u512a\u308c\u305f\u9ad8\u78c1\u5834MRI\u88c5\u7f6e\u304c\u666e\u53ca\u3057\u3066\u4f4e\u78c1\u5834MRI\u88c5\u7f6e\u306f\u5ec3\u308c\u305f\u304c\u3001\u8fd1\u5e74\u3001\u9ad8\u78c1\u5834\u5316\u306e\u884c\u304d\u8a70\u307e\u308a\u3068\u6280\u8853\u9769\u65b0\u306b\u3088\u308a\u3001\u4f4e\u78c1\u5834MRI\u88c5\u7f6e\u3067\u306e\u64ae\u50cf\u6280\u8853\u304c\u5411\u4e0a\u3057\u305f\u3053\u3068\u306b\u3088\u3063\u3066\u3001\u958b\u767a\u9014\u4e0a\u56fd\u7b49\u3001\u3053\u308c\u307e\u3067\u5c0e\u5165\u306e\u56f0\u96e3\u3060\u3063\u305f\u5730\u57df\u3078\u306e\u666e\u53ca\u3092\u8996\u91ce\u306b\u958b\u767a\u304c\u9032\u3081\u3089\u308c\u3064\u3064\u3042\u308b[6][7]\u3002\u30ed\u30b9\u30a2\u30e9\u30e2\u30b9\u56fd\u7acb\u7814\u7a76\u6240\u3067\u306f\u53ef\u642c\u5f0f\u306e\u4f4e\u78c1\u5834MRI\u304c\u958b\u767a\u3055\u308c\u305f[8][9]\u3002\u52d5\u7684\u6838\u504f\u6975\u6cd5\u306e\u5c0e\u5165\u306b\u3088\u308a\u3001\u8d85\u4f4e\u78c1\u5834\u3067\u9ad8\u78c1\u5834\u306b\u304a\u3051\u308b\u7406\u8ad6\u7684\u306a\u9650\u754c\u3067\u3042\u308b\u03b3e\/\u03b3H = 658x\u3092\u8d85\u3048\u308b\u4e8b\u304c\u671f\u5f85\u3055\u308c\u308b[10]\u3002 \u30d7\u30ed\u30c8\u30f3\u306e\u6838\u30b9\u30d4\u30f3\u8ef8\u3092\u4e00\u65b9\u5411\u306b\u63c3\u3048\u308b\u305f\u3081\u306e\u5206\u6975\u78c1\u5834\u306e\u5370\u52a0\u306b\u306f\u96fb\u78c1\u77f3\u3060\u3051\u3067\u306a\u304f\u3001\u30cf\u30eb\u30d0\u30c3\u30cf\u914d\u5217\u306e[\u8981\u51fa\u5178]\u6c38\u4e45\u78c1\u77f3\u306e\u914d\u5217\u3092\u5236\u5fa1\u3059\u308b\u3053\u3068\u3067\u96fb\u529b\u3092\u6d88\u8cbb\u305b\u305a\u306b\u5370\u52a0\u3059\u308b\u65b9\u6cd5\u3082\u958b\u767a\u3055\u308c\u3064\u3064\u3042\u308b[11]\u3002 \u307e\u305f\u3001\u4f4e\u4fa1\u683c\u5316\u3059\u308b\u3053\u3068\u3067\u533b\u7642\u7528\u306e\u307f\u306a\u3089\u305a\u3001\u5f93\u6765\u306f\u5c0e\u5165\u304c\u56f0\u96e3\u3060\u3063\u305f\u98df\u54c1\u306e\u54c1\u8cea\u7ba1\u7406\u7b49\u3078\u306e\u5c0e\u5165\u3082\u60f3\u5b9a\u3055\u308c\u308b[12]\u3002","datePublished":"2022-04-24","dateModified":"2022-04-24","author":{"@type":"Person","@id":"https:\/\/wiki.edu.vn\/jp\/wiki9\/archives\/author\/lordneo#Person","name":"lordneo","url":"https:\/\/wiki.edu.vn\/jp\/wiki9\/archives\/author\/lordneo","image":{"@type":"ImageObject","@id":"https:\/\/secure.gravatar.com\/avatar\/c9645c498c9701c88b89b8537773dd7c?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/c9645c498c9701c88b89b8537773dd7c?s=96&d=mm&r=g","height":96,"width":96}},"publisher":{"@type":"Organization","name":"Enzyklop\u00e4die","logo":{"@type":"ImageObject","@id":"https:\/\/wiki.edu.vn\/wiki4\/wp-content\/uploads\/2023\/08\/download.jpg","url":"https:\/\/wiki.edu.vn\/wiki4\/wp-content\/uploads\/2023\/08\/download.jpg","width":600,"height":60}},"image":{"@type":"ImageObject","@id":"https:\/\/upload.wikimedia.org\/wikipedia\/commons\/thumb\/b\/b4\/Ambox_important.svg\/40px-Ambox_important.svg.png","url":"https:\/\/upload.wikimedia.org\/wikipedia\/commons\/thumb\/b\/b4\/Ambox_important.svg\/40px-Ambox_important.svg.png","height":"40","width":"40"},"url":"https:\/\/wiki.edu.vn\/jp\/wiki9\/archives\/285081","about":["Wiki"],"wordCount":2932,"articleBody":"\u51fa\u5178\u306f\u5217\u6319\u3059\u308b\u3060\u3051\u3067\u306a\u304f\u3001\u811a\u6ce8\u306a\u3069\u3092\u7528\u3044\u3066\u3069\u306e\u8a18\u8ff0\u306e\u60c5\u5831\u6e90\u3067\u3042\u308b\u304b\u3092\u660e\u8a18\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u8a18\u4e8b\u306e\u4fe1\u983c\u6027\u5411\u4e0a\u306b\u3054\u5354\u529b\u3092\u304a\u9858\u3044\u3044\u305f\u3057\u307e\u3059\u3002\uff082016\u5e7410\u6708\uff09\u4f4e\u78c1\u5834\u6838\u78c1\u6c17\u5171\u9cf4\u753b\u50cf\u6cd5\uff08\u3066\u3044\u3058\u3070\u304b\u304f\u3058\u304d\u304d\u3087\u3046\u3081\u3044\u304c\u305e\u3046\u307b\u3046\u3001\u82f1\u8a9e: Low field magnetic resonance imaging\uff09\u3068\u306f\u3001\u4f4e\u78c1\u5834\u3067\u6838\u78c1\u6c17\u5171\u9cf4\uff08nuclear magnetic resonance, NMR\uff09\u73fe\u8c61\u3092\u5229\u7528\u3057\u3066\u751f\u4f53\u5185\u306e\u5185\u90e8\u306e\u60c5\u5831\u3092\u753b\u50cf\u306b\u3059\u308b\u65b9\u6cd5\u3067\u3042\u308b\u3002\u4f4e\u78c1\u5834MRI\u3068\u7565\u79f0\u3055\u308c\u308b\u3002  \u5206\u985e\u3067 0.2\u00a0T \u672a\u6e80\u306e\u78c1\u5834\u3092\u5229\u7528\u3059\u308bMRI\u304c\u8a72\u5f53\u3059\u308b[1]\u3002MRI\u306e\u9ece\u660e\u671f\u306b\u306f\u9ad8\u78c1\u5834\u3092\u5f97\u308b\u4e8b\u304c\u56f0\u96e3\u3060\u3063\u305f\u305f\u3081\u3001\u4f4e\u78c1\u5834MRI\u88c5\u7f6e\u304c\u4e00\u822c\u7684\u3060\u3063\u305f\u30021982\u5e74\u306b\u6700\u521d\u306b\u8a3a\u7642\u7528\u306b\u65e5\u672c\u56fd\u5185\u306e\u75c5\u9662\u306b\u8a2d\u7f6e\u3055\u308c\u305f\u6c38\u4e45\u78c1\u77f3\u5f0f\u306eFONAR QED 80-\u03b1\u306e\u78c1\u5834\u5f37\u5ea6\u306f40\u00a0mT\u3067\u73fe\u5728\u306e\u57fa\u6e96\u3067\u306f\u4f4e\u78c1\u5834MRI\u306b\u5206\u985e\u3055\u308c\u308b\u88c5\u7f6e\u3060\u3063\u305f[2][3][4][5]\u3002\u305d\u306e\u5f8c\u3001\u8d85\u4f1d\u5c0e\u78c1\u77f3\u306e\u5c0e\u5165\u306b\u3088\u308a\u3001\u753b\u8cea\u306e\u512a\u308c\u305f\u9ad8\u78c1\u5834MRI\u88c5\u7f6e\u304c\u666e\u53ca\u3057\u3066\u4f4e\u78c1\u5834MRI\u88c5\u7f6e\u306f\u5ec3\u308c\u305f\u304c\u3001\u8fd1\u5e74\u3001\u9ad8\u78c1\u5834\u5316\u306e\u884c\u304d\u8a70\u307e\u308a\u3068\u6280\u8853\u9769\u65b0\u306b\u3088\u308a\u3001\u4f4e\u78c1\u5834MRI\u88c5\u7f6e\u3067\u306e\u64ae\u50cf\u6280\u8853\u304c\u5411\u4e0a\u3057\u305f\u3053\u3068\u306b\u3088\u3063\u3066\u3001\u958b\u767a\u9014\u4e0a\u56fd\u7b49\u3001\u3053\u308c\u307e\u3067\u5c0e\u5165\u306e\u56f0\u96e3\u3060\u3063\u305f\u5730\u57df\u3078\u306e\u666e\u53ca\u3092\u8996\u91ce\u306b\u958b\u767a\u304c\u9032\u3081\u3089\u308c\u3064\u3064\u3042\u308b[6][7]\u3002\u30ed\u30b9\u30a2\u30e9\u30e2\u30b9\u56fd\u7acb\u7814\u7a76\u6240\u3067\u306f\u53ef\u642c\u5f0f\u306e\u4f4e\u78c1\u5834MRI\u304c\u958b\u767a\u3055\u308c\u305f[8][9]\u3002\u52d5\u7684\u6838\u504f\u6975\u6cd5\u306e\u5c0e\u5165\u306b\u3088\u308a\u3001\u8d85\u4f4e\u78c1\u5834\u3067\u9ad8\u78c1\u5834\u306b\u304a\u3051\u308b\u7406\u8ad6\u7684\u306a\u9650\u754c\u3067\u3042\u308b\u03b3e\/\u03b3H = 658x\u3092\u8d85\u3048\u308b\u4e8b\u304c\u671f\u5f85\u3055\u308c\u308b[10]\u3002\u30d7\u30ed\u30c8\u30f3\u306e\u6838\u30b9\u30d4\u30f3\u8ef8\u3092\u4e00\u65b9\u5411\u306b\u63c3\u3048\u308b\u305f\u3081\u306e\u5206\u6975\u78c1\u5834\u306e\u5370\u52a0\u306b\u306f\u96fb\u78c1\u77f3\u3060\u3051\u3067\u306a\u304f\u3001\u30cf\u30eb\u30d0\u30c3\u30cf\u914d\u5217\u306e[\u8981\u51fa\u5178]\u6c38\u4e45\u78c1\u77f3\u306e\u914d\u5217\u3092\u5236\u5fa1\u3059\u308b\u3053\u3068\u3067\u96fb\u529b\u3092\u6d88\u8cbb\u305b\u305a\u306b\u5370\u52a0\u3059\u308b\u65b9\u6cd5\u3082\u958b\u767a\u3055\u308c\u3064\u3064\u3042\u308b[11]\u3002\u307e\u305f\u3001\u4f4e\u4fa1\u683c\u5316\u3059\u308b\u3053\u3068\u3067\u533b\u7642\u7528\u306e\u307f\u306a\u3089\u305a\u3001\u5f93\u6765\u306f\u5c0e\u5165\u304c\u56f0\u96e3\u3060\u3063\u305f\u98df\u54c1\u306e\u54c1\u8cea\u7ba1\u7406\u7b49\u3078\u306e\u5c0e\u5165\u3082\u60f3\u5b9a\u3055\u308c\u308b[12]\u3002  \u958b\u767a\u3055\u308c\u305f\u5f53\u6642\u304b\u3089MRI\u88c5\u7f6e\u306e\u8cbb\u7528\u306f\u78c1\u77f3\u3068\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u304c\u5927\u90e8\u5206\u3092\u5360\u3081\u3066\u3044\u305f\u30021990\u5e74\u4ee3\u4ee5\u964d\u3001\u30e0\u30fc\u30a2\u306e\u6cd5\u5247\u306b\u3088\u308a\u3001\u4e2d\u592e\u6f14\u7b97\u51e6\u7406\u88c5\u7f6e(CPU)\u306e\u6027\u80fd\u304c\u98db\u8e8d\u7684\u306b\u5411\u4e0a\u3057\u305f\u3053\u3068\u306b\u3088\u308a\u3001MRI\u88c5\u7f6e\u5168\u4f53\u306e\u4fa1\u683c\u306b\u5360\u3081\u308b\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u306e\u5272\u5408\u306f\u76f8\u5bfe\u7684\u306b\u4f4e\u4e0b\u3057\u305f\u3082\u306e\u306e\u3001\u78c1\u77f3\u306e\u5024\u6bb5\u306f\u4e0b\u304c\u3089\u305a\u3001MRI\u88c5\u7f6e\u306e\u5024\u6bb5\u306f\u4f9d\u7136\u9ad8\u984d\u3067\u958b\u767a\u9014\u4e0a\u56fd\u306a\u3069\u3067\u306e\u666e\u53ca\u3092\u963b\u3080\u8981\u56e0\u3068\u306a\u3063\u3066\u3044\u305f[13][14]\u3002Table of Contents\u4f4e\u78c1\u5834MRI\u88c5\u7f6e\u306e\u72b6\u6cc1[\u7de8\u96c6]\u9ad8\u78c1\u5834MRI\u3068\u6bd4\u8f03\u3057\u305f\u9577\u6240\u30fb\u77ed\u6240[\u7de8\u96c6]\u9577\u6240[\u7de8\u96c6]\u77ed\u6240[\u7de8\u96c6]\u53c2\u8003\u6587\u732e[\u7de8\u96c6]\u95a2\u9023\u9805\u76ee[\u7de8\u96c6]\u5916\u90e8\u30ea\u30f3\u30af[\u7de8\u96c6]\u4f4e\u78c1\u5834MRI\u88c5\u7f6e\u306e\u72b6\u6cc1[\u7de8\u96c6]\u8fd1\u5e74\u3001\u4f4e\u78c1\u5834\u4e2d\u306e\u4f4e\u5468\u6ce2\u306e\u5468\u6ce2\u6570\u5e2f\u57df\u3067\u9ad8\u611f\u5ea6\u306a\u8d85\u4f1d\u5c0e\u91cf\u5b50\u5e72\u6e09\u7d20\u5b50\uff08SQUID\uff09\u3084\u5149\u30dd\u30f3\u30d4\u30f3\u30b0\u78c1\u529b\u8a08\u304c\u958b\u767a\u3055\u308c[15][16]\u3001\u305d\u308c\u3089\u306e\u5c0e\u5165\u3068\u975e\u8abf\u548c\u89e3\u6790\u3001\u30b9\u30d1\u30fc\u30b9\u30e2\u30c7\u30ea\u30f3\u30b0\u3092\u306f\u3058\u3081\u3068\u3059\u308b\u5727\u7e2e\u30bb\u30f3\u30b7\u30f3\u30b0\u306b\u3088\u308b\u8d85\u89e3\u50cf\u6280\u8853\u306e\u533b\u7528\u753b\u50cf\u51e6\u7406\u3078\u306e\u5c0e\u5165\u306b\u3088\u308a\u4f4e\u78c1\u5834MRI\u3067\u3082\u5b9f\u7528\u7684\u306a\u64ae\u50cf\u304c\u53ef\u80fd\u306b\u306a\u308a\u3064\u3064\u3042\u308b[17][18][19][20][21]\u3002[11]2006\u5e74\u306b\u306f400\u00a0mT \u306e\u5206\u6975\u78c1\u5834\u3092\u5370\u52a0\u5f8c\u300152\u00a0mT \u306e\u9759\u78c1\u5834\u3067\u6838\u78c1\u6c17\u5171\u9cf4\u753b\u50cf\u306e\u64ae\u50cf\u304c\u5831\u544a\u3055\u308c[22]\u30012013\u5e74\u306b\u306f 80\u00a0mT \u306e\u5206\u6975\u78c1\u5834\u3092\u5370\u52a0\u5f8c\u3001 4\u00a0mT \u306e\u9759\u78c1\u5834\u3067\u6838\u78c1\u6c17\u5171\u9cf4\u753b\u50cf\u306e\u64ae\u50cf\u304c\u5831\u544a\u3055\u308c\u305f[18]\u3002  \u4f4e\u78c1\u5834MRI\u88c5\u7f6e\u306b\u306f\u8d85\u4f4e\u78c1\u5834\u4e2d\u3067\u306e\u78c1\u5834\u52fe\u914d\u306e\u7cbe\u5ea6\u306e\u554f\u984c\u3084\u5171\u9cf4\u4fe1\u53f7\u306e\u4f4e\u5468\u6ce2\u5316\u306b\u4f34\u3046\u5468\u6ce2\u6570\u5206\u89e3\u7cbe\u5ea6\u306e\u554f\u984c\u306a\u3069\u304c\u3042\u308b[23]\u3002\u4f8b\u3048\u3070\u3001\u9759\u78c1\u5834\u3092 1\u00a0mT \u3068\u3057\u305f\u5834\u5408\u3001\u305d\u306e\u6838\u78c1\u6c17\u5171\u9cf4\u5468\u6ce2\u6570\u306f ~43\u00a0kHz \u3068\u306a\u308b\u3002\u96e2\u6563\u30d5\u30fc\u30ea\u30a8\u5909\u63db\u3092\u7528\u3044\u308b\u5834\u5408\u3001\u305d\u306e\u5468\u6ce2\u6570\u5206\u89e3\u80fd\u306f\u6642\u9593\u9577\u306e\u9006\u6570\u306b\u306a\u308b\u305f\u3081\u30010.1\u00a0Hz \u306e\u5468\u6ce2\u6570\u5206\u89e3\u3092\u5f97\u308b\u305f\u3081\u306b\u306f 0.01\u00a0s \u306e\u6642\u9593\u9577\u304c\u5fc5\u8981\u306b\u306a\u308b\u3002\u5149\u30dd\u30f3\u30d4\u30f3\u30b0\u78c1\u529b\u8a08\u3067\u306f\u3001\u30a2\u30eb\u30ab\u30ea\u91d1\u5c5e\u539f\u5b50\u306e\u96fb\u5b50\u30b9\u30d4\u30f3\u504f\u6975\u306e\u78c1\u6c17\u56de\u8ee2\u6bd4\u306fMRI\u306b\u304a\u3044\u3066\u4e3b\u306b\u8a08\u6e2c\u5bfe\u8c61\u3068\u306a\u308b\u30d7\u30ed\u30c8\u30f3\u306e\u7d04164\u500d\u3067\u3042\u308b\u305f\u3081\u3001\u540c\u4e00\u78c1\u5834\u4e2d\u306b\u8a66\u6599\u304a\u3088\u3073\u30ac\u30e9\u30b9\u30bb\u30eb\u3092\u8a2d\u7f6e\u3059\u308b\u3068\u3001\u5171\u9cf4\u5468\u6ce2\u6570\u306e\u4e0d\u4e00\u81f4\u306b\u3088\u308a\u8a08\u6e2c\u611f\u5ea6\u304c\u4f4e\u4e0b\u3059\u308b\u3002\u3053\u306e\u554f\u984c\u306b\u5bfe\u3057\u3066\u3001\u30d5\u30e9\u30c3\u30af\u30b9\u30c8\u30e9\u30f3\u30b9\u30d5\u30a9\u30fc\u30de(flux transformer\u00a0: FT)\u3092\u7528\u3044\u305f\u9060\u9694\u8a08\u6e2c\u6cd5\u304c\u63d0\u6848\u3055\u308c\u3066\u3044\u308b[24][25]\u3002\u4e0d\u5747\u4e00\u3060\u304c\u3001\u5f37\u3044\u78c1\u5834\u3092\u30d1\u30eb\u30b9\u7684\u306b\u5370\u52a0\u3059\u308b\u3053\u3068\u306b\u3088\u3063\u3066\u6838\u78c1\u5316\uff08\u7e26\u78c1\u5316\uff09\u3092\u751f\u6210\u3057\u3066\u3001\u5f31\u3044\u304c\u5747\u4e00\u306a\u78c1\u5834\u306b\u3088\u3063\u3066\u6838\u78c1\u5316\u306e\u4fe1\u53f7\u3092\u8aad\u307f\u51fa\u3059\uff08\u30a4\u30e1\u30fc\u30b8\u30f3\u30b0\u3092\u884c\u3046\uff09\u5206\u6975\u78c1\u5834\u5370\u52a0\u6cd5(Pre-polarized MRI)\u3067\u306f\u78c1\u77f3\u306e\u30b3\u30b9\u30c8\u304c\u5927\u5e45\u306b\u4f4e\u6e1b\u3067\u304d\u308b\u3082\u306e\u306e\u3001\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u65ad\u5c64\u64ae\u5f71\u3068\u540c\u69d8\u306e\u65b9\u6cd5\u3067\u518d\u69cb\u6210\u3059\u308b\u4e8b\u306f\u53ef\u80fd\u3060\u304c\u64ae\u50cf\u6642\u70b9\u3067\u306e\u30b9\u30e9\u30a4\u30b9\u9078\u629e\u304c\u4e0d\u53ef\u80fd\u7b49\u306e\u672c\u8cea\u7684\u306a\u6b20\u9665\u3092\u5185\u5305\u3059\u308b[26]\u3002\u65e2\u306b10\u5e74\u4ee5\u4e0a\u306b\u6e21\u308a\u3001\u958b\u767a\u304c\u9032\u3081\u3089\u308c\u3066\u3044\u308b\u3082\u306e\u306e\u3001\u672c\u683c\u7684\u306a\u5b9f\u7528\u5316\u306b\u306f\u81f3\u3063\u3066\u3044\u306a\u3044[26]\u3002\u9ad8\u78c1\u5834MRI\u3068\u6bd4\u8f03\u3057\u305f\u9577\u6240\u30fb\u77ed\u6240[\u7de8\u96c6]\u9577\u6240[\u7de8\u96c6]\u78c1\u5834\u306e\u906e\u853d\u304c\u5bb9\u6613\u3067\u5f37\u529b\u306a\u9759\u78c1\u5834\u306b\u3088\u308b\u529b\u5b66\u7684\u4f5c\u7528\uff08\u30df\u30b5\u30a4\u30eb\u52b9\u679c\uff09\u304a\u3088\u3073\u78c1\u6c17\u7684\u4f5c\u7528\u304c\u8efd\u5fae\u52fe\u914d\u78c1\u5834\u306e\u5909\u52d5\u306b\u3088\u308b\u795e\u7d4c\u523a\u6fc0\u304c\u8efd\u5faeRF\u30d1\u30eb\u30b9\u306e\u5438\u53ce\u306b\u3088\u308b\u767a\u71b1\u4f5c\u7528\u304c\u8efd\u5fae\u30ed\u30fc\u30ec\u30f3\u30c4\u529b\u306b\u3088\u308b\u52fe\u914d\u78c1\u5834\u30b3\u30a4\u30eb\u306e\u632f\u52d5\u3067\u767a\u751f\u3059\u308b\u9a12\u97f3\u304c\u8efd\u5fae\u9ad8\u4fa1\u306a\u6db2\u4f53\u30d8\u30ea\u30a6\u30e0\u306e\u88dc\u5145\u304c\u4e0d\u8981\u6a5f\u5668\u306e\u5024\u6bb5\u3001\u7dad\u6301\u8cbb\u304c\u5b89\u3044\u9759\u78c1\u5834\u306e\u5f37\u5ea6\u304c\u5f31\u3051\u308c\u3070\u5f37\u3044\u52fe\u914d\u78c1\u5834\u5f37\u5ea6\u306f\u4e0d\u8981\u306a\u306e\u3067\u3001\u53d7\u4fe1\u3059\u308b\u4fe1\u53f7\u306e\u5e2f\u57df\u5e45\u3092\u72ed\u304f\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u3001\u305d\u308c\u306b\u4f34\u3044\u4fe1\u53f7\u96d1\u97f3\u6bd4 SNR\u304c\u5411\u4e0a\u3059\u308b[1]\u5f37\u3044\u52fe\u914d\u78c1\u5834\u3092\u4f5c\u308c\u308b\u4f4e\u78c1\u5834MRI\u88c5\u7f6e\u3067\u306f\u3001\u3055\u3089\u306b\u30b9\u30e9\u30a4\u30b9\u539a\u3092\u8584\u304f\u3057\u305f\u308a\u3001\u64ae\u5f71\u8996\u91ce\uff08FOV\uff09\u3092\u5c0f\u3055\u304f\u3067\u304d\u3001\u9ad8\u3044\u7a7a\u9593\u5206\u89e3\u80fd\u306e\u753b\u50cf\u3092\u5f97\u308b\u3053\u3068\u304c\u3067\u304d\u308b[1]\u30d1\u30eb\u30b9\u3092\u4e0e\u3048\u308b\u9593\u9694\uff08TR\u3001\u82f1: repetition time\uff09\u3092\u3088\u308a\u77ed\u304f\u3067\u304d\u308b[1]\u5316\u5b66\u30b7\u30d5\u30c8\u3001\u78c1\u5316\u7387\u306e\u9055\u3044\u3001\u6d41\u308c\u3001\u52d5\u304d\u306b\u3088\u308b\u30a2\u30fc\u30c6\u30a3\u30d5\u30a1\u30af\u30c8\u306f\u9ad8\u78c1\u5834MRI\u88c5\u7f6e\u3068\u6bd4\u8f03\u3057\u3066\u8efd\u6e1b\u3055\u308c\u308b[1]\u9ad8\u611f\u5ea6\u306e\u30bd\u30ec\u30ce\u30a4\u30c9\u578b\u30b3\u30a4\u30eb\u304c\u4f7f\u7528\u3067\u304d\u308b\u77ed\u6240[\u7de8\u96c6]\u89e3\u50cf\u5ea6\u304c\u52a3\u308b\u4fe1\u53f7\u96d1\u97f3\u6bd4\uff08SNR\uff09\u306f\u5927\u307e\u304b\u306b\u9759\u78c1\u5834\u5f37\u5ea6\u306b\u6bd4\u4f8b\u3059\u308b\u305f\u3081\u88c5\u7f6e\u306e\u4ed6\u306e\u5168\u3066\u306e\u8981\u7d20\u304c\u540c\u7b49\u3060\u3068\u3057\u305f\u5834\u5408\u3001\u4f4e\u78c1\u5834MRI\u306eSNR\u306f\u76f8\u5bfe\u7684\u306b\u4f4e\u304f\u306a\u308b\u306e\u3067\u3001\u4fe1\u53f7\u306e\u52a0\u7b97\u56de\u6570\u3092\u5897\u3084\u3059\u5fc5\u8981\u304c\u3042\u308a\u3001\u64ae\u50cf\u6642\u9593\u304c\u9577\u304f\u306a\u308b[1]\u78c1\u5316\u7387\u52b9\u679c\u304c\u4f4e\u304f\u306a\u308b\u305f\u3081\u3001\u77f3\u7070\u5316\u5de3\u3084\u9244\u306e\u6c88\u7740\u3001\u51fa\u8840\u306e\u691c\u51fa\u306b\u52a3\u308b[1]\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u65ad\u5c64\u64ae\u5f71\u3068\u540c\u69d8\u306e\u65b9\u6cd5\u3067\u518d\u69cb\u6210\u3059\u308b\u4e8b\u306f\u53ef\u80fd\u3060\u304c\u64ae\u50cf\u6642\u70b9\u3067\u306e\u5206\u6975\u78c1\u5834\u5370\u52a0\u6cd5(Pre-polarized MRI)\u3067\u306f\u30b9\u30e9\u30a4\u30b9\u9078\u629e\u304c\u4e0d\u53ef\u80fd[26]\u53c2\u8003\u6587\u732e[\u7de8\u96c6]Daniel Raftery. \u201cMRI without the magnet\u201d (PDF). Proceedings of the National Academy of Sciences of the United States of America 103 (34):  12657\u201312658. doi:10.1073\/pnas.0605625103. http:\/\/www.pnas.org\/content\/103\/34\/12657.full.pdf.\u00a0I.L.\u30d4\u30b1\u30c3\u30c8\u300c\u533b\u7642\u7528NMR\u30b9\u30ad\u30e3\u30ca\u30fc\u300d\u300e\u30b5\u30a4\u30a8\u30f3\u30b9\u300f1982\u5e747\u6708\u53f7\u3001 20\u9801\u3002Ian L.Pykett (1982\u5e745\u6708\u53f7). \u201cNMR Imaging in Medicine\u201d. Scientific American 246 (5):  78-88.  \u30aa\u30ea\u30b8\u30ca\u30eb\u306e2016\u5e743\u670810\u65e5\u6642\u70b9\u306b\u304a\u3051\u308b\u30a2\u30fc\u30ab\u30a4\u30d6\u3002. https:\/\/web.archive.org\/web\/20160310035223\/http:\/\/www.fis.cinvestav.mx\/~lmontano\/sciam\/NMR-scam0582-78-91.pdf.\u00a0\u5de8\u702c\u52dd\u7f8e\u300eNMR\u30a4\u30e1\u30fc\u30b8\u30f3\u30b0\u300f\u5171\u7acb\u51fa\u7248\u30012004\u5e745\u670815\u65e5\u3002ISBN\u00a09784320043626\u3002\u5de8\u702c\u52dd\u7f8e\u300e\u30b3\u30f3\u30d1\u30af\u30c8MRI\u300f\u5171\u7acb\u51fa\u7248\u30012004\u5e7411\u670815\u65e5\u3002ISBN\u00a09784320043749\u3002\u534a\u7530\u664b\u4e5f\u3001\u62dd\u5e2b\u667a\u4e4b\u3001\u5de8\u702c\u52dd\u7f8e\u300cMRI\u88c5\u7f6e\u306e\u3057\u304f\u307f\u3068\u305d\u306eRF\u6280\u8853\u300d\u300eRF\u30ef\u30fc\u30eb\u30c9\u300f\u7b2c4\u5dfb\u3001CQ\u51fa\u7248\u30012008\u5e7412\u67081\u65e5\u3001 78-87\u9801\u3001 ISBN\u00a09784789848978\u3002Crooks, Lawrence, et al. “Nuclear magnetic resonance whole-body imager operating at 3.5 KGauss.” Radiology 143.1 (1982): 169-174.Redpath, T. W., et al. “A low field NMR imager for clinical use.” Journal of Physics E: Scientific Instruments 20.10 (1987): 1228.Ojala, M., L. Ketonen, and J. Palo. “The value of CT and very low field MRI in the etiological diagnosis of dizziness.” Acta neurologica scandinavica 78.1 (1988): 26-29.van Heteren, John G., Timothy W. James, and Lincoln C. Bourne. “Thin film high temperature superconducting RF coils for low field MRI.” Magnetic resonance in medicine 32.3 (1994): 396-400.Kinnunen, Jaakko, et al. “Diagnostic performance of low field MRI in acute knee injuries.” Magnetic resonance imaging 12.8 (1994): 1155-1160.Tseng, C. H., et al. “Low-field MRI of laser polarized noble gas.” Physical review letters 81.17 (1998): 3785.Merl, T., et al. “Results of a prospective multicenter study for evaluation of the diagnostic quality of an open whole-body low-field MRI unit.: A comparison with high-field MRI measured by the applicable gold standard.” European journal of radiology 30.1 (1999): 43-53.Louise Knapp (2001\u5e743\u670827\u65e5). \u201cCheap Magnets Equal Cheap MRI\u201d. wired.com. http:\/\/www.wired.com\/science\/discoveries\/news\/2001\/03\/42583 2016\u5e749\u670821\u65e5\u95b2\u89a7\u3002\u00a0Sch\u00e4fer, J. F., et al. “[Imaging diagnosis of solitary pulmonary nodules on an open low-field MRI system–comparison of two MR sequences with spiral CT].” Rofo: Fortschritte auf dem Gebiete der Rontgenstrahlen und der Nuklearmedizin 174.9 (2002): 1107-1114.Ejbjerg, B. J., et al. “Optimised, low cost, low field dedicated extremity MRI is highly specific and sensitive for synovitis and bone erosions in rheumatoid arthritis wrist and finger joints: comparison with conventional high field MRI and radiography.” Annals of the rheumatic diseases 64.9 (2005): 1280-1287.Zotev, Vadim S., et al. “Multi-channel SQUID system for MEG and ultra-low-field MRI.” IEEE Transactions on Applied Superconductivity 17.2 (2007): 839-842.Clarke, John, Michael Hatridge, and Michael M\u00f6\u00dfle. “SQUID-detected magnetic resonance imaging in microtesla fields.” Annu. Rev. Biomed. Eng. 9 (2007): 389-413.Zotev, Vadim S., et al. “SQUID-based instrumentation for ultralow-field MRI.” Superconductor Science and Technology 20.11 (2007): S367.Goetz, Christian, et al. “SPECT low-field MRI system for small-animal imaging.” Journal of Nuclear Medicine 49.1 (2008): 88-93.Espy, M., et al. “Ultra-low-field MRI for the detection of liquid explosives.” Superconductor Science and Technology 23.3 (2010): 034023.Espy, Michelle, et al. “Progress on detection of liquid explosives using ultra-low field MRI.” IEEE Transactions on Applied Superconductivity 21.3 (2011): 530-533.Vesanen, Panu T., et al. “Hybrid ultra\u2010low\u2010field MRI and magnetoencephalography system based on a commercial whole\u2010head neuromagnetometer.” Magnetic Resonance in Medicine 69.6 (2013): 1795-1804.Robert Kraus Jr.; Michelle Espy; Per Magnelind; Petr Volegov (2014-02-26). Ultra-Low Field Nuclear Magnetic Resonance: A New MRI Regime. Oxford University Press. ISBN\u00a09780199796519\u00a0Michael L Johns; Einar O Fridjonsson; Sarah J Vogt; Agnes Haber; William Price; Peter Bl\u00fcmler; Daniel Holland (2015-10-27). Mobile NMR and MRI: Developments and Applications (New Developments in NMR). Royal Society of Chemistry. ISBN\u00a09781849739153\u00a0Hans-Martin Klein (2015-10-04). Clinical Low Field Strength Magnetic Resonance Imaging: A Practical Guide to Accessible MRI. Springer. ISBN\u00a09783319165158\u00a0Albert, Mitchell S., Dilip Balamore, and Arvind K. Venkatesh. “Low-field MRI.” \u30a2\u30e1\u30ea\u30ab\u5408\u8846\u56fd\u7279\u8a31\u7b2c 6,845,262\u53f7 18 Jan. 2005.Savukov, Igor Mykhaylovich, et al. “Method of performing MRI with an atomic magnetometer.” \u30a2\u30e1\u30ea\u30ab\u5408\u8846\u56fd\u7279\u8a31\u7b2c 8,305,078\u53f7 6 Nov. 2012.Savukov, Igor Mykhaylovich, et al. “Method of performing MRI with an atomic magnetometer.” \u30a2\u30e1\u30ea\u30ab\u5408\u8846\u56fd\u7279\u8a31\u7b2c 8,519,705\u53f7 27 Aug. 2013.\u95a2\u9023\u9805\u76ee[\u7de8\u96c6]\u5916\u90e8\u30ea\u30f3\u30af[\u7de8\u96c6]"},{"@context":"http:\/\/schema.org\/","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"item":{"@id":"https:\/\/wiki.edu.vn\/jp\/wiki9\/#breadcrumbitem","name":"Enzyklop\u00e4die"}},{"@type":"ListItem","position":2,"item":{"@id":"https:\/\/wiki.edu.vn\/jp\/wiki9\/archives\/285081#breadcrumbitem","name":"\u4f4e\u78c1\u5834\u6838\u78c1\u6c17\u5171\u9cf4\u753b\u50cf\u6cd5 – Wikipedia"}}]}]