{"id":293,"date":"2020-12-01T19:44:05","date_gmt":"2020-12-01T10:44:05","guid":{"rendered":"http:\/\/preview-me.net\/m.ehime-u.ac.jp\/school\/radiology\/?post_type=voice&#038;p=293"},"modified":"2021-01-04T14:01:21","modified_gmt":"2021-01-04T05:01:21","slug":"%e5%a4%a9%e4%bd%93%e5%86%99%e7%9c%9f%e3%81%a8%e7%94%bb%e5%83%8f%e8%a8%ba%e6%96%ad","status":"publish","type":"column","link":"https:\/\/www.m.ehime-u.ac.jp\/school\/radiology\/column\/293\/","title":{"rendered":"\u5929\u4f53\u5199\u771f\u3068\u753b\u50cf\u8a3a\u65ad"},"content":{"rendered":"<h4>\u306f\u3058\u3081\u306b<\/h4>\n<p>\u9ad8\u6821\u751f\u306e\u9803\u306b\u5929\u4f53\u5199\u771f\u306e\u8da3\u5473\u306b\u306f\u307e\u308a\u3001\u30d5\u30a3\u30eb\u30e0\u30ab\u30e1\u30e9\u3067\u64ae\u5f71\u3057\u3001\u81ea\u5b85\u62bc\u3057\u5165\u308c\u6697\u5ba4\u3067\u306e\u73fe\u50cf\u3084\u5f15\u304d\u5ef6\u3070\u3057\u3092\u3057\u3066\u304a\u308a\u307e\u3057\u305f\u3002\u5352\u696d\u3057\u3066\u653e\u5c04\u7dda\u79d1\u533b\u3068\u3057\u3066\u306e\u4ed5\u4e8b\u3092\u958b\u59cb\u3057\u3066\u304b\u3089\u306f\u3001\u591a\u5fd9\u306b\u307e\u304e\u308c\u3066\u3057\u307e\u3063\u3066\u3001\u3053\u306e\u8da3\u5473\u304b\u3089\u306f\u9060\u3056\u304b\u308b\u3053\u3068\u306b\u306a\u3063\u3066\u3057\u307e\u3044\u307e\u3057\u305f\u3002\u5929\u4f53\u5199\u771f\u306e\u8da3\u5473\u3092\u5fa9\u6d3b\u3055\u305b\u305f\u306e\u306f\u300115\u5e74\u524d\u304f\u3089\u3044\u306b\u30c7\u30b8\u30bf\u30eb\u4e00\u773c\u30ec\u30d5\u304c\u666e\u53ca\u3057\u305f\u3053\u308d\u306b\u306a\u308a\u307e\u3059\u3002\u30c7\u30b8\u30bf\u30eb\u30ab\u30e1\u30e9\u306e\u9032\u6b69\u3067\u3001\u6614\u82e6\u52b4\u3057\u3066\u64ae\u5f71\u3057\u305f\u5bfe\u8c61\u304c\u5bb9\u6613\u306b\u64ae\u5f71\u3067\u304d\u3001\u7d50\u679c\u304c\u3059\u3050\u306b\u308f\u304b\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3057\u305f\u3002\u8fd1\u5834\u3067\u306e\u64ae\u5f71\u306e\u307f\u306a\u3089\u305a\u3001\u5c71\u3078\u9060\u5f81\u3057\u305f\u308a\u3059\u308b\u3088\u3046\u306b\u3082\u306a\u308a\u307e\u3057\u305f\u3002\u30c7\u30b8\u30bf\u30eb\u5316\u3068\u3068\u3082\u306b\u3001PC\u4e0a\u3067Photoshop\u3092\u4f7f\u3063\u305f\u753b\u50cf\u5f37\u8abf\u51e6\u7406\u306a\u3069\u3092\u3059\u308b\u3088\u3046\u306b\u3082\u306a\u308a\u307e\u3057\u305f\u3002\u3053\u306e\u5929\u4f53\u5199\u771f\u306e\u8da3\u5473\u3068\u672c\u696d\u306e\u753b\u50cf\u8a3a\u65ad\u306b\u306f\u3001\u4e0d\u601d\u8b70\u3068\u5171\u901a\u3059\u308b\u3082\u306e\u304c\u3044\u304f\u3064\u304b\u3042\u308a\u307e\u3059\u3002\u3053\u308c\u306b\u3064\u3044\u3066\u5c11\u3057\u79c1\u898b\u3092\u542b\u3081\u3066\u66f8\u3044\u3066\u307f\u307e\u3057\u305f\u3002<\/p>\n<h4>1. \u30a2\u30c8\u30e9\u30b9<\/h4>\n<p>\u4eba\u4f53\u89e3\u5256\u306f\u3001\u753b\u50cf\u8a3a\u65ad\u306e\u57fa\u672c\u306b\u306a\u308a\u307e\u3059\u3002\u540c\u3058\u304f\u3001\u661f\u3092\u307f\u308b\u3068\u304d\u3082\u3001\u6642\u9593\u3068\u65b9\u89d2\u3067\u898b\u3048\u308b\u3082\u306e\u306f\u3001\u307b\u307c\u6c7a\u307e\u3063\u3066\u3044\u307e\u3059\u3002\u60d1\u661f\u306f\u3001\u65e5\u3005\u4f4d\u7f6e\u3092\u5909\u3048\u3066\u3044\u307e\u3059\u3002\u30b9\u30bf\u30fc\u30a2\u30c8\u30e9\u30b9\uff08\u661f\u56f3\uff09\u306f\u3001\u661f\u3092\u307f\u308b\u3068\u304d\u306f\u3001\u5fc5\u9808\u306e\u3082\u306e\u3067\u3059\u3002\u6c34\u661f\u3092\u6c34\u661f\u3068\u3057\u3066\u8a8d\u8b58\u3057\u305f\u3053\u3068\u306e\u3042\u308b\u4eba\u306f\u3001\u5929\u6587\u30d5\u30a1\u30f3\u4ee5\u5916\u3067\u306f\u3001\u307b\u3068\u3093\u3069\u3044\u306a\u3044\u306e\u3067\u306f\u3068\u601d\u3044\u307e\u3059\u3002\u6761\u4ef6\u304c\u826f\u3051\u308c\u3070\u30011\u7b49\u661f\u4ee5\u4e0a\u306b\u660e\u308b\u304f\u306a\u308a\u307e\u3059(\u56f3\uff11)\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-296\" src=\"https:\/\/www.m.ehime-u.ac.jp\/school\/radiology\/wordpress\/wp-content\/uploads\/2020\/12\/img-heavenly_01-1.jpg\" alt=\"\" width=\"400\" height=\"549\" \/><\/p>\n<p>\u77e5\u8b58\u304c\u306a\u3051\u308c\u3070\u3001\u305d\u308c\u3092\u6c34\u661f\u3068\u3057\u3066\u8a8d\u8b58\u3067\u304d\u307e\u305b\u3093\u3002\u753b\u50cf\u8a3a\u65ad\u3082\u540c\u3058\u3067\u3001\u6b63\u5e38\u89e3\u5256\u3084\u75c5\u6c17\u306e\u77e5\u8b58\u304c\u306a\u3051\u308c\u3070\u3001\u898b\u3048\u3066\u3044\u308b\u306e\u306b\u3001\u75be\u60a3\u3068\u3057\u3066\u6349\u3048\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u305b\u3093\u3002\u30a2\u30c8\u30e9\u30b9\u306f\u3001\u305d\u306e\u610f\u5473\u3067\u57fa\u672c\u3068\u306a\u308b\u3082\u306e\u3067\u3059\u3002\u540d\u524d\u306e\u3064\u3044\u305f\u5f57\u661f\u304c\u3042\u308a\u307e\u3059\u304c\u3001\u767a\u898b\u8005\u306e\u540d\u524d\u3092\u51a0\u3055\u308c\u307e\u3059\u3002\u5f57\u661f\u306f\u592a\u967d\u306b\u8fd1\u3065\u3044\u3066\u304f\u308b\u3068\u3001\u592a\u967d\u306e\u71b1\u306a\u3069\u3067\u3001\u8868\u9762\u304c\u5d29\u58ca\u3057\u3001\u9577\u3044\u5c3e\u3092\u5f15\u304f\u3053\u3068\u304c\u3042\u308a\u307e\u3059\uff08\u56f32\uff09\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-305\" src=\"https:\/\/www.m.ehime-u.ac.jp\/school\/radiology\/wordpress\/wp-content\/uploads\/2020\/12\/img-heavenly_02-1.jpg\" alt=\"\" width=\"500\" height=\"327\" srcset=\"https:\/\/www.m.ehime-u.ac.jp\/school\/radiology\/wordpress\/wp-content\/uploads\/2020\/12\/img-heavenly_02-1.jpg 500w, https:\/\/www.m.ehime-u.ac.jp\/school\/radiology\/wordpress\/wp-content\/uploads\/2020\/12\/img-heavenly_02-1-300x196.jpg 300w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/p>\n<p>\u5927\u5f57\u661f\u3068\u8a00\u308f\u308c\u308b\u3082\u306e\u3067\u306f\u3002\u9577\u5927\u306a\u5c3e\u3092\u5f15\u304d\u3001\u5929\u6587\u30d5\u30a1\u30f3\u306e\u307f\u306a\u3089\u305a\u3001\u4e00\u822c\u306e\u4eba\u306e\u95a2\u5fc3\u3092\u5f15\u304f\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u901a\u5e38\u306e\u661f\u7a7a\u306e\u306a\u304b\u306b\u3001\u7a81\u5982\u3068\u3057\u3066\u51fa\u73fe\u3059\u308b\u5f57\u661f\u3067\u3059\u304c\u3001\u65e5\u3005\u4f4d\u7f6e\u3092\u5909\u3048\u308b\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u3002\u3053\u308c\u3092\u64ae\u5f71\u3059\u308b\u3068\u304d\u3082\u3001\u8d77\u52d5\u8981\u7d20\u304b\u3089\u4f4d\u7f6e\u3092\u63a8\u7b97\u3057\u3066\u3001\u661f\u56f3\u4e0a\u3067\u306e\u4f4d\u7f6e\u3092\u78ba\u8a8d\u3057\u3066\u64ae\u5f71\u3057\u307e\u3059\u3002\u982d\u90e8\u306e\u4f4d\u7f6e\u3001\u5c3e\u306e\u5f15\u304f\u65b9\u5411\u3084\u9577\u3055\u304b\u3089\u3069\u3046\u30d5\u30ec\u30fc\u30df\u30f3\u30b0\u3059\u308b\u304b\u3068\u3044\u3046\u3068\u304d\u306b\u3001\u30a2\u30c8\u30e9\u30b9\u3084\u30de\u30c3\u30d7\u304c\u5fc5\u8981\u3067\u3059\u3002\u753b\u50cf\u8a3a\u65ad\u306b\u304a\u3044\u3066\u3082\u3001\u5e38\u306b\u6b63\u5e38\u69cb\u9020\u3092\u610f\u8b58\u3057\u306a\u304c\u3089\u3001\u898b\u6163\u308c\u306a\u3044\u3082\u306e\u3092\u898b\u3064\u3051\u308b\u4e8b\u304c\u91cd\u8981\u3067\u3059\u3002<\/p>\n<h4>2. SN\u6bd4: SNR (Signal to Noise Ratio)<\/h4>\n<p>\u591c\u306e\u661f\u3068\u3044\u3046\u5fae\u5f31\u306a\u5149\u3092\u3068\u3089\u3048\u3066\u753b\u50cf\u5316\u3059\u308b\u3068\u3044\u3046\u4f5c\u696d\u306f\u3001\u672c\u696d\u306e\u753b\u50cf\u8a3a\u65ad\u306b\u3082\u901a\u3058\u308b\u3068\u3053\u308d\u304c\u3042\u308a\u307e\u3059\u3002X\u7dda\u3067\u306e\u64ae\u5f71\u3067\u306f\u3001\u4eca\u306f\u591a\u304f\u306e\u64ae\u5f71\u304c\u30c7\u30b8\u30bf\u30eb\u5316\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u30c7\u30b8\u30bf\u30eb\u5316\u4ee5\u524d\u306e\u30d5\u30a3\u30eb\u30e0\u64ae\u5f71\u3067\u306f\u3001\u5897\u611f\u7d19\u3092\u7528\u3044\u305f\u5358\u7d14\u5199\u771f\u3084Image Intensifier\u3067\u306e\u900f\u8996\u64ae\u5f71\u306a\u3069\u3001\u82e5\u3044\u5148\u751f\u305f\u3061\u306e\u77e5\u3089\u306a\u3044\u4e8b\u304c\u3044\u304f\u3064\u304b\u3042\u308a\u307e\u3057\u305f\u3002\u57fa\u672c\u7684\u306b\u306f\u3001X\u7dda\u3092\u305f\u304f\u3055\u3093\u7167\u5c04\u3059\u308c\u3070\u3001\u826f\u3044\u753b\u50cf\u304c\u64ae\u5f71\u3067\u304d\u308b\u306e\u3067\u3059\u304c\u3001\u88ab\u66dd\u304c\u5897\u3048\u308b\u3053\u3068\u3084X\u7dda\u7ba1\u7403\u306e\u5bb9\u91cf\u304b\u3089\u3001\u3042\u308b\u7a0b\u5ea6\u306e\u7dda\u91cf\u3067\u3001\u753b\u50cf\u3092\u5f37\u8abf\u3059\u308b\u5de5\u592b\u304c\u306a\u3055\u308c\u3066\u304d\u307e\u3057\u305f\u3002\u6628\u4eca\u306e\u88ab\u66dd\u306b\u5bfe\u3059\u308b\u610f\u8b58\u306e\u9ad8\u307e\u308a\u304b\u3089\u3001\u4eca\u3082\u540c\u3058\u52aa\u529b\u304c\u7d9a\u3051\u3089\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u5929\u4f53\u64ae\u5f71\u3082\u4eba\u5de5\u306e\u5149(Noise)\u306b\u57cb\u3082\u308c\u304c\u3061\u306a\u661f\u3068\u3044\u3046\u5fae\u5f31\u306a\u5149(Signal)\u3092\u3068\u3089\u3048\u308b\u4e8b\u306b\u306a\u308a\u307e\u3059\u3002SN\u6bd4\u3068\u3044\u3046\u7528\u8a9e\u306f\u8272\u3005\u306a\u3068\u3053\u308d\u3067\u51fa\u3066\u304f\u308b\u306e\u3067\u3059\u304c\u3001\u826f\u3044\u753b\u8cea\u3084\u97f3\u8cea\u3092\u5f97\u308b\u305f\u3081\u306b\u306f\u3001SN\u6bd4\u304c\u826f\u597d\u3067\u3042\u308b\u3068\u3044\u3046\u4e8b\u304c\u91cd\u8981\u3067\u3059\u3002Noise\u306e\u4f4e\u6e1b\u306e\u305f\u3081\u306b\u306f\u3001\u307e\u305a\u306f\u6697\u3044\u3068\u3053\u308d\u3067\u64ae\u5f71\u3059\u308b\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002\u8857\u4e2d\u3067\u306f\u3001\u660e\u308b\u3044\u661f\u3057\u304b\u898b\u3048\u306a\u3044\u306e\u306b\u3001\u30ad\u30e3\u30f3\u30d7\u306a\u3069\u3067\u51fa\u304b\u3051\u305f\u3068\u304d\u6697\u3044\u7a7a\u306e\u4e0b\u3067\u898b\u308b\u661f\u306f\u5927\u5909\u660e\u308b\u304f\u8f1d\u3044\u3066\u898b\u3048\u307e\u3059\u3002\u6697\u304f\u6f84\u3093\u3060\u591c\u7a7a\u304c\u3001\u661f\u306e\u64ae\u5f71\u306b\u306f\u91cd\u8981\u3067\u3059\u3002\u305d\u306e\u4ee3\u8868\u3068\u3057\u3066\u306f\u3001\u30cf\u30ef\u30a4\u5cf6\u5c71\u9802\u306e\u3059\u3070\u308b\u5929\u6587\u53f0\u3084\u5b87\u5b99\u7a7a\u9593\u306b\u3042\u308bHubble\u5b87\u5b99\u671b\u9060\u93e1\u306b\u306a\u308a\u307e\u3059\uff08\u56f33\uff09\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-306\" src=\"https:\/\/www.m.ehime-u.ac.jp\/school\/radiology\/wordpress\/wp-content\/uploads\/2020\/12\/img-heavenly_03-1.jpg\" alt=\"\" width=\"500\" height=\"311\" srcset=\"https:\/\/www.m.ehime-u.ac.jp\/school\/radiology\/wordpress\/wp-content\/uploads\/2020\/12\/img-heavenly_03-1.jpg 500w, https:\/\/www.m.ehime-u.ac.jp\/school\/radiology\/wordpress\/wp-content\/uploads\/2020\/12\/img-heavenly_03-1-300x187.jpg 300w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/p>\n<p>\u305d\u3053\u3067\u306f\u3001\u5927\u53e3\u5f84\u306e\u671b\u9060\u93e1\u3092\u5229\u7528\u3057\u3066\u3001\u5fae\u5f31\u306a\u5149\u3092\u96c6\u5149\u3059\u308b\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u3002\u4eba\u9593\u306e\u77b3\u306f7mm\u3067\u7db2\u819c\u306e\u611f\u5ea6\u306f\u305d\u308c\u307b\u3069\u9ad8\u3044\u3082\u306e\u3067\u3042\u308a\u307e\u305b\u3093\u3002\u305d\u308c\u306b\u4ee3\u308f\u3063\u3066\u3001\u671b\u9060\u93e1\u306e\u30ec\u30f3\u30ba\u3067\u5149\u3092\u96c6\u5149\u3059\u308b\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u30027cm\u306e\u671b\u9060\u93e1\u3067\u306f100\u500d\u306e\u5149\u3092\u96c6\u5149\u3067\u304d\u307e\u3059\u3002\u3059\u3070\u308b\u671b\u9060\u93e1\u306f\u53e3\u5f84\u304c8.2\uff4d\u3082\u3042\u308b\u306e\u3067\u3001\u8089\u773c\u3088\u308a\u3082137\u4e07\u500d\u306e\u5149\u3092\u96c6\u5149\u3057\u3066\u3044\u307e\u3059\u3002\u671b\u9060\u93e1\u306e\u6027\u80fd\u306f\u3001\u500d\u7387\u3067\u306f\u306a\u304f\u53e3\u5f84\u306b\u4f9d\u5b58\u3059\u308b\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u3002\u73fe\u5728\u306e\u5929\u4f53\u5199\u771f\u3067\u306f\u3001\u7db2\u819c\u306b\u4ee3\u308f\u3063\u3066\u3001\u305d\u306e\u7126\u70b9\u4f4d\u7f6e\u306b\u30c7\u30b8\u30bf\u30eb\u30ab\u30e1\u30e9\u306eCCD\u3084CMOS\u30bb\u30f3\u30b5\u30fc\u306b\u5149\u3092\u84c4\u7a4d\u3057\u3066\u3001\u30c7\u30b8\u30bf\u30eb\u4fe1\u53f7\u5316\u3057\u3066\u753b\u50cf\u5316\u3057\u3066\u3044\u304d\u307e\u3059\u3002\u611f\u5ea6\u3092\u4e0a\u3052\u308b\u3068\u3088\u308a\u6697\u3044\u3082\u306e\u304c\u5199\u308b\u306e\u3067\u3059\u304c\u3001\u540c\u6642\u306b\u30bb\u30f3\u30b5\u30fc\u306e\u30ce\u30a4\u30ba\u304c\u5897\u52a0\u3057\u307e\u3059\u3002\u305d\u306e\u30ce\u30a4\u30ba\u3092\u4f4e\u6e1b\u3057\u3066\u3044\u304f\u5de5\u592b\u3082\u5fc5\u8981\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<h4>3. NEX\u3000(number of excitation)\u3068\u30b9\u30e9\u30a4\u30b9\u539a<\/h4>\n<p>NEX\u3068\u306f\u3001MRI\u3067\u306e\u64ae\u5f71\u3067\u306e\u52a0\u7b97\u56de\u6570\u306b\u306a\u308a\u307e\u3059\u3002\u3059\u306a\u308f\u3061\u4f55\u5ea6\u3082\u64ae\u5f71\u3057\u305fMRI\u4fe1\u53f7\u3092\u52a0\u7b97\u3059\u308b\u3053\u3068\u3067\u3001\u30ce\u30a4\u30ba\u306b\u57cb\u3082\u308c\u305f\u5fae\u5f31\u306aMRI\u306e\u4fe1\u53f7\u3092\u5f37\u8abf\u3059\u308b\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u3002NEX\u3092n\u56de\u3059\u308b\u3068\u3001SN\u6bd4\u306froot n\u500d\u306b\u306a\u308a\u307e\u3059\u3002\u5929\u4f53\u5199\u771f\u3067\u306f\u3001\u64ae\u5f71\u679a\u6570\u3092\u5897\u3084\u3057\u3066\u30ce\u30a4\u30ba\u4f4e\u6e1b\u3092\u56f3\u308a\u307e\u3059\u3002\u5143\u3005\u6697\u3044\u661f\u96f2\u306a\u3069\u3067\u306f\u3001\u5f37\u8abf\u51e6\u7406\u3092\u3057\u306a\u3044\u3068\u898b\u6804\u3048\u306e\u3059\u308b\u7dba\u9e97\u306a\u5199\u771f\u306b\u306a\u3089\u306a\u3044\u306e\u3067\u3059\u304c\u3001\u5149\u5bb3\u4ee5\u5916\u306b\u30ab\u30e1\u30e9\u5185\u90e8\u3067\u3082\u751f\u3058\u308b\u30ce\u30a4\u30ba\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u308c\u3092\u6e1b\u3089\u3059\u305f\u3081\u306b\u4f55\u56de\u3082\u64ae\u5f71\u3057\u305f\u753b\u50cf\u3092\u52a0\u7b97\u5e73\u5747\u3057\u3066\u884c\u304f\u51e6\u7406\u306f\u3001MRI\u306eNEX\u3068\u540c\u3058\u4e8b\u3067\u3059\u3002\u3053\u308c\u3092\u661f\u306e\u4e16\u754c\u3067\u306f\u3001composite\u3084stack\u3068\u3044\u3046\u624b\u6cd5\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\u30de\u30eb\u30c1\u30b9\u30e9\u30a4\u30b9CT\u6642\u4ee3\u306b\u306a\u308a\u3001\u591a\u6570\u306e\u8584\u3044\u30b9\u30e9\u30a4\u30b9\u306e\u753b\u50cf\u304c\u751f\u6210\u3055\u308c\u308b\u3053\u3068\u306b\u306a\u308a\u307e\u3057\u305f\u30023D\u4f5c\u6210\u7528\u306b\u306f\u3001\u8584\u3044\u30b9\u30e9\u30a4\u30b9\u30c7\u30fc\u30bf\u3092\u7528\u3044\u308b\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u304c\u3001\u901a\u5e38\u306e\u8a3a\u65ad\u306e\u969b\u306b\u306f\u8584\u3044\u30b9\u30e9\u30a4\u30b9\u3067\u306f\u30ce\u30a4\u30ba\u304c\u591a\u304f\u306a\u308a\u307e\u3059\u3002\u8a3a\u65ad\u306b\u306f\u3042\u308b\u7a0b\u5ea6\u306e\u30b9\u30e9\u30a4\u30b9\u539a\u3067\u306e\u753b\u50cf\u306e\u307b\u3046\u304c\u3001SN\u6bd4\u304c\u826f\u304f\u306a\u308a\u307e\u3059\u3002\u3059\u306a\u308f\u3061\u5148\u307b\u3069\u306eNEX\u3068\u540c\u69d8\u306b\u30010.5mm\u30b9\u30e9\u30a4\u30b9\u539a\u306eCT\u753b\u50cf\u306eCT\u30685mm\u539a\u306e\u30b9\u30e9\u30a4\u30b9\u753b\u50cf\u3068\u3067\u300110\u679a\u91cd\u306d\u305f\u52b9\u679c\u304c\u5f97\u3089\u308c\u3001\u221a10\uff083.16\uff09\u500dSN\u6bd4\u304c\u5411\u4e0a\u3057\u307e\u3059\u3002\u8584\u3044\u30b9\u30e9\u30a4\u30b9\u3067\u306a\u3044\u3068\u898b\u3048\u306a\u3044\u69cb\u9020\u3082\u3042\u308a\u307e\u3059\u304c\u3001\u8584\u3044\u30b9\u30e9\u30a4\u30b9\u306e\u6b20\u70b9\u3082\u5341\u5206\u7406\u89e3\u3059\u308b\u3053\u3068\u304c\u5fc5\u8981\u3067\u3059\u3002<\/p>\n<h4>4. AI\u3000(\u4eba\u5de5\u77e5\u80fd\uff09\u3068CNR(Contrast to Noise Ratio)<\/h4>\n<p>\u8fd1\u5e74CT\u3067\u306e\u753b\u50cf\u518d\u69cb\u6210\u6cd5\u306f\u3001\u5f93\u6765\u306eFiltered back projection\u6cd5\u304b\u3089\u9010\u6b21\u8fd1\u4f3c\u6cd5\u3092\u5229\u7528\u3057\u305f\u518d\u69cb\u6210\u3001\u3055\u3089\u306b\u6700\u8fd1\u3067\u306fAI\u3092\u5229\u7528\u3057\u305f\u518d\u69cb\u6210\u6cd5\u3082\u51fa\u73fe\u3057\u3066\u304d\u307e\u3057\u305f\u3002\u3053\u306e\u80cc\u666f\u306b\u306f\u3001CT\u3067\u306e\u88ab\u66dd\u91cf\u3092\u4f4e\u6e1b\u3059\u308b\u3053\u3068\u304c\u91cd\u8981\u306a\u8ab2\u984c\u3068\u306a\u3063\u3066\u3044\u308b\u304b\u3089\u3067\u3059\u3002\u753b\u8cea\u3068\u653e\u5c04\u7dda\u88ab\u66dd\u306e\u95a2\u4fc2\u306f\u30c8\u30ec\u30fc\u30c9\u30aa\u30d5\u306b\u3042\u308a\u3001\u88ab\u66dd\u3092\u4f4e\u6e1b\u3059\u308b\u3068\u753b\u8cea\u304c\u52a3\u5316\u3059\u308b\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u3002\u3053\u306e\u753b\u8cea\u52a3\u5316\u3092\u9632\u3050\u305f\u3081\u306b\u3001\u9010\u6b21\u8fd1\u4f3c\u6cd5\u304c\u307e\u305a\u306f\u8a66\u3055\u308c\u308b\u3053\u3068\u3068\u306a\u308a\u307e\u3057\u305f\u3002\u6b8b\u5ff5\u306a\u304c\u3089\u3001\u9010\u6b21\u8fd1\u4f3c\u6cd5\u306e\u518d\u69cb\u6210\u3067\u306f\u3001\u7279\u6709\u306e\u30aa\u30a4\u30eb\u30da\u30a4\u30c6\u30a3\u30f3\u30b0\u69d8\u306e\u4e0d\u81ea\u7136\u306a\u753b\u50cf\u3068\u306a\u308a\u3084\u3059\u3044\u306e\u3067\u3059\u3002\u4f4e\u7dda\u91cf\u3067\u3082\u3001\u3088\u308a\u81ea\u7136\u306a\u753b\u8cea\u3067\u30b3\u30f3\u30c8\u30e9\u30b9\u30c8\u3084\u7a7a\u9593\u5206\u89e3\u80fd\u3092\u4fdd\u6301\u3057\u305f\u753b\u50cf\u304c\u3001\u4eca\u5f8c\u306e\u753b\u50cf\u518d\u69cb\u6210\u306b\u306f\u671b\u307e\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u7406\u89e3\u3057\u3065\u3089\u3044\u753b\u8cea\u306e\u6307\u6a19\u306bCNR\u304c\u3042\u308a\u307e\u3059\u3002\u7c21\u5358\u306b\u8a00\u3048\u3070\u3001\u4f4e\u30b3\u30f3\u30c8\u30e9\u30b9\u30c8\u9818\u57df\u306b\u304a\u3051\u308b\u5206\u89e3\u80fd\u3092\u610f\u5473\u3057\u307e\u3059\u3002\u661f\u306f\u80cc\u666f\u3068\u306a\u308b\u6697\u3044\u5b87\u5b99\u7a7a\u9593\u306b\u6bd4\u3057\u3001\u9ad8\u30b3\u30f3\u30c8\u30e9\u30b9\u3068\u306a\u308a\u307e\u3059\u3002\u3057\u304b\u3057\u3001\u30e2\u30e4\u30e2\u30e4\u5e83\u304c\u308b\u661f\u96f2\u306f\u4f4e\u30b3\u30f3\u30c8\u30e9\u30b9\u30c8\u3067\u5f69\u5ea6\u3082\u4f4e\u304f\u306a\u308a\u307e\u3059\u3002\u3053\u308c\u3092\u7dba\u9e97\u306b\u63cf\u5199\u3059\u308b\u305f\u3081\u306b\u306f\u3001\u4f4e\u30b3\u30f3\u30c8\u30e9\u30b9\u30c8\u9818\u57df\u306e\u30ce\u30a4\u30ba\u3092\u6e1b\u3089\u3059\u3053\u3068\u304c\u91cd\u8981\u306b\u306a\u308a\u307e\u3059\u3002\u6de1\u3044\u661f\u96f2\u3092\u5f37\u8abf\u3059\u308b\u306b\u306f\u3001\u6de1\u3044\u4f4e\u30b3\u30f3\u30c8\u30e9\u30b9\u30c8\u9818\u57df\u3092\u3044\u304b\u306b\u30ce\u30a4\u30ba\u3092\u5897\u3084\u3055\u305a\u306b\u5f37\u8abf\u3059\u308b\u304b\u3068\u3044\u3046\u3053\u3068\u304c\u30ad\u30fc\u3068\u306a\u308a\u307e\u3059\u3002\u30ce\u30a4\u30ba\u3092\u6e1b\u3089\u3059\u6700\u3082\u624b\u8efd\u306a\u51e6\u7406\u306f\u3001\u307c\u304b\u3059\u3053\u3068\u3067\u3059\u3002\u3057\u304b\u3057\u3001\u307c\u304b\u3059\u3068\u7a7a\u9593\u5206\u89e3\u80fd\u304c\u4f4e\u4e0b\u3057\u3066\u3001\u307c\u3084\u3051\u305f\u753b\u50cf\u3068\u306a\u3063\u3066\u3057\u307e\u3044\u307e\u3059\u3002\u7a7a\u9593\u5206\u89e3\u80fd\u3092\u843d\u3068\u3055\u305a\u306b\u3001\u30ce\u30a4\u30ba\u3092\u4f4e\u6e1b\u3055\u305b\u308b\u624b\u6cd5\u3068\u3057\u3066\u3001\u6628\u4eca\u306f\u3084\u308a\u306e\u4eba\u5de5\u77e5\u80fd(AI)\u3092\u5229\u7528\u3057\u305f\u753b\u50cf\u51e6\u7406\u304c\u3001\u5229\u7528\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u79c1\u306e\u597d\u304d\u306a\u5929\u4f53\u5199\u771f\u3067\u3082\u3001\u9ad8\u753b\u7d20\u6570\u3067\u9ad8\u611f\u5ea6\u306e\u30bb\u30f3\u30b5\u30fc\u304c\u7528\u3044\u3089\u308c\u3001\u30ab\u30e1\u30e9\u5185\u90e8\u51e6\u7406\u3067\u4f4e\u30ce\u30a4\u30ba\u5316\u304c\u56f3\u3089\u308c\u3066\u3044\u308b\u306e\u3067\u3059\u304c\u3001ISO\u306a\u3069\u306e\u30bb\u30f3\u30b5\u30fc\u611f\u5ea6\u3092\u4e0a\u3052\u308b\u3068\u907f\u3051\u3089\u308c\u306a\u3044\u306e\u304c\u30ce\u30a4\u30ba\u3068\u306a\u308a\u307e\u3059\u3002\u30ce\u30a4\u30ba\u304c\u5897\u3048\u308b\u3068\u3001\u5206\u89e3\u80fd\u306e\u4f4e\u5316\u306b\u3064\u306a\u304c\u308a\u3001\u7dba\u9e97\u306a\u30b7\u30e3\u30fc\u30d7\u306a\u5199\u771f\u3068\u306f\u8a00\u3048\u307e\u305b\u3093\u3002\u307e\u305a\u306f\u3001\u64ae\u50cf\u679a\u6570\u3092\u7a3c\u3050\u3053\u3068\u304c\u3001\u4e00\u822c\u7684\u306a\u624b\u6cd5\u3067\u3059\u304c\u3001\u4e00\u6669\u306b\u64ae\u5f71\u3067\u304d\u308b\u6642\u9593\u306f\u9650\u3089\u308c\u3066\u3044\u307e\u3059\u3002\u753b\u50cf\u51e6\u7406\u306e\u3060\u3044\u3054\u5473\u306f\u3001\u3044\u304b\u306b\u30ce\u30a4\u30ba\u611f\u3092\u5c11\u306a\u304f\u3001\u9ad8\u30b3\u30f3\u30c8\u30e9\u30b9\u30c8\u306a\u753b\u50cf\u306b\u4ed5\u4e0a\u3052\u308b\u304b\u306b\u304b\u304b\u3063\u3066\u304f\u308b\u306e\u3067\u3059\u3002\u753b\u50cf\u51e6\u7406\u30bd\u30d5\u30c8\u306e\u4ee3\u8868\u3068\u306a\u308bPhotoshop\u4e0a\u306e\u30d7\u30e9\u30b0\u30a4\u30f3\u306b\u3001\u6700\u8fd1\u306fAI\u3092\u5229\u7528\u3057\u305f\u3082\u306e\u304c\u51fa\u3066\u304d\u307e\u3057\u305f\uff08\u56f34\uff09\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-307\" src=\"https:\/\/www.m.ehime-u.ac.jp\/school\/radiology\/wordpress\/wp-content\/uploads\/2020\/12\/img-heavenly_04-1.jpg\" alt=\"\" width=\"500\" height=\"381\" srcset=\"https:\/\/www.m.ehime-u.ac.jp\/school\/radiology\/wordpress\/wp-content\/uploads\/2020\/12\/img-heavenly_04-1.jpg 500w, https:\/\/www.m.ehime-u.ac.jp\/school\/radiology\/wordpress\/wp-content\/uploads\/2020\/12\/img-heavenly_04-1-300x229.jpg 300w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/p>\n<p>\u9ad8\u753b\u7d20\u306e\u753b\u50cf\u3092\u51e6\u7406\u3059\u308b\u306b\u306f\u3001PC\u306e\u80fd\u529b\u306b\u304b\u304b\u3063\u3066\u304f\u308b\u306e\u3067\u3059\u304c\u3001\u3053\u3093\u306a\u3068\u3053\u308d\u306b\u3082\u985e\u4f3c\u70b9\u304c\u3042\u308a\u307e\u3059\u3002\u8fd1\u5e74\u306ePC\u306eCPU\u306f\u30de\u30eb\u30c1\u30b3\u30a2\u5316\u304c\u9032\u307f\u3001\u9ad8\u5ea6\u306e\u6f14\u7b97\u51e6\u7406\u304c\u53ef\u80fd\u3068\u306a\u308a\u307e\u3059\u3002\u4eca\u306ePC\u3067\u3082\u3001\u3053\u306e\u69d8\u306a\u51e6\u7406\u3092\u8d70\u3089\u305b\u308b\u3068\u3001\u3057\u3070\u3089\u304f\u6642\u9593\u304c\u304b\u304b\u3063\u3066\u3057\u307e\u3044\u307e\u3059\u3002\u9ad8\u6027\u80fd\u306ePC\u304c\u6b32\u3057\u304f\u306a\u3063\u3066\u3044\u308b\u4eca\u65e5\u3053\u306e\u9803\u3067\u3059\u3002<\/p>\n<h4>5. MIP\u3000(\u6700\u5927\u6fc3\u5ea6\u6295\u5f71\u6cd5\uff09\u3068\u6bd4\u8f03\u660e\u5408\u6210\u6cd5<\/h4>\n<p>\u901a\u5e38\u3001\u661f\u306e\u64ae\u5f71\u306f\u5730\u7403\u306e\u81ea\u8ee2\u306b\u3088\u3063\u3066\u3001\u9577\u6642\u9593\u306e\u64ae\u5f71\u3067\u306f\u3001\u661f\u306f\u6d41\u308c\u3066\u5199\u308a\u307e\u3059\u3002\u661f\u306e\u6d41\u308c\u3092\u7121\u304f\u3057\u3001\u6de1\u3044\u5149\u3092\u84c4\u7a4d\u3057\u3066\u64ae\u5f71\u3059\u308b\u65b9\u6cd5\u3092\u30ac\u30a4\u30c9\u64ae\u5f71\u3068\u8a00\u3044\u307e\u3059\u3002\u8d64\u9053\u5100\u3068\u3044\u3046\u671b\u9060\u93e1\u67b6\u53f0\u306b\u3001\u30ab\u30e1\u30e9\u3084\u671b\u9060\u93e1\u3092\u8f09\u305b\u3066\u30e2\u30fc\u30bf\u30fc\u3067\u661f\u3092\u8ffd\u5c3e\u3057\u306a\u304c\u3089\u64ae\u5f71\u3057\u3066\u3044\u304d\u307e\u3059\u3002\u3053\u308c\u306e\u5236\u5fa1\u306b\u3082\u3001PC\u3067\u306e\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb\u304c\u306a\u3055\u308c\u307e\u3059\u3002MRI\u3067\u306e\u547c\u5438\u540c\u671f\u64ae\u5f71\u3084\u3001\u5fc3\u81d3CT\u306a\u3093\u304b\u306e\u5fc3\u96fb\u56f3\u540c\u671f\u3082\u52d5\u3044\u3066\u3044\u308b\u3082\u306e\u3092\u3067\u304d\u308b\u3060\u3051\u3001\u9759\u6b62\u3055\u305b\u3066\u64ae\u308b\u3068\u3044\u3046\u540c\u3058\u30b3\u30f3\u30bb\u30d7\u30c8\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\u753b\u50cf\u51e6\u7406\u306e\u518d\u69cb\u6210\u6cd5\u306e\u4e00\u3064\u306b\u3001MRA\u306a\u3069\u3067\u826f\u304f\u7528\u3044\u3089\u308c\u308bMIP\u3068\u3044\u3046\u51e6\u7406\u6cd5\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u308c\u306f\u3001\u3044\u304f\u3064\u304b\u306e\u30b9\u30e9\u30a4\u30b9\u3092\u5408\u6210\u3059\u308b\u969b\u306b\u3001\u6700\u3082\u9ad8\u6fc3\u5ea6(\u9ad8\u4fe1\u53f7)\u3068\u306a\u308b\u90e8\u5206\u3092\u63cf\u51fa\u3059\u308b\u624b\u6cd5\u3067\u3059\u3002\u661f\u306e\u4e16\u754c\u3067\u3082\u3001\u6bd4\u8f03\u660e\u5408\u6210\u6cd5\u3068\u3044\u3046\u306e\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u306e\u624b\u6cd5\u306f\u3001\u56fa\u5b9a\u64ae\u5f71\u6cd5\u3067\u7528\u3044\u3089\u308c\u307e\u3059\u3002\u30ab\u30e1\u30e9\u3092\u52d5\u304b\u3055\u306a\u3044\u306e\u3067\u3001\u80cc\u666f\u3068\u306a\u308b\u98a8\u666f\u3084\u5efa\u7269\u304c\u52d5\u304b\u305a\u306b\u5199\u308a\u3001\u661f\u306e\u8ecc\u8de1\u304c\u7dda\u3068\u306a\u3063\u3066\u5199\u3063\u3066\u304d\u307e\u3059(\u56f35)\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-308\" src=\"https:\/\/www.m.ehime-u.ac.jp\/school\/radiology\/wordpress\/wp-content\/uploads\/2020\/12\/img-heavenly_05-1.jpg\" alt=\"\" width=\"500\" height=\"342\" srcset=\"https:\/\/www.m.ehime-u.ac.jp\/school\/radiology\/wordpress\/wp-content\/uploads\/2020\/12\/img-heavenly_05-1.jpg 500w, https:\/\/www.m.ehime-u.ac.jp\/school\/radiology\/wordpress\/wp-content\/uploads\/2020\/12\/img-heavenly_05-1-300x205.jpg 300w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" 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\u6700\u5f8c\u306b<\/h4>\n<p>\u5929\u4f53\u753b\u50cf\u51e6\u7406\u306e\u306a\u304b\u306b\u3001Wavelet\u5909\u63db\u3092\u5229\u7528\u3057\u305f\u60d1\u661f\u753b\u50cf\u51e6\u7406\u306a\u3069\u3082\u3042\u308a\u307e\u3059\u304c\u3001\u3053\u3061\u3089\u306f\u79c1\u306e\u9818\u57df\u3067\u306f\u306a\u3044\u306e\u3067\u5272\u611b\u3057\u307e\u3059\u304c\u3001\u4eca\u306fVoyager\u3067\u64ae\u5f71\u3057\u305f\u69d8\u306a\u9a5a\u7570\u306e\u60d1\u661f\u753b\u50cf\u3092\u64ae\u5f71\u3059\u308b\u65b9\u3082\u304a\u3089\u308c\u307e\u3059\u3002\u30aa\u30bf\u30af\u306e\u4e16\u754c\u306e\u6280\u8853\u3082\u9032\u6b69\u3059\u308b\u4e00\u65b9\u3067\u3059\u3002<\/p>\n<p>\u826f\u3044\u753b\u50cf\u3068\u306f\u3001\u30ce\u30a4\u30ba\u304c\u4f4e\u304f\u3001\u9069\u5207\u306a\u30b3\u30f3\u30c8\u30e9\u30b9\u30c8\u3068\u5f69\u5ea6\u3092\u4fdd\u6301\u3057\u305f\u3001\u5206\u89e3\u80fd\u306e\u9ad8\u3044\u753b\u50cf\u3068\u8a00\u3048\u307e\u3059\u3002\u3053\u308c\u3092\u76ee\u7684\u306b\u753b\u50cf\u51e6\u7406\u3092\u52a0\u3048\u3066\u884c\u304f\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u3002\u3057\u304b\u3057\u3001\u5143\u753b\u50cf\uff08\u30c7\u30fc\u30bf\uff09\u304c\u91cd\u8981\u3067\u3042\u308b\u3053\u3068\u306f\u3001\u8a00\u3046\u307e\u3067\u3082\u3042\u308a\u307e\u305b\u3093\u3002\u5199\u3063\u3066\u3044\u306a\u3044\u3082\u306e\u307e\u3067\u3001\u753b\u50cf\u51e6\u7406\u3067\u63cf\u5199\u3059\u308b\u3053\u3068\u306f\u3067\u304d\u307e\u305b\u3093\u3002\u533b\u7528\u753b\u50cf\u3082\u540c\u4e00\u3067\u3001\u826f\u3044\u64ae\u50cf\u6a5f\u5668\u3092\u7528\u3044\u3001\u9069\u5207\u306a\u30d1\u30e9\u30e1\u30fc\u30bf\u3067\u826f\u3044\u753b\u50cf\u30c7\u30fc\u30bf\u3092\u53d6\u5f97\u3059\u308b\u4e8b\u304c\u3001\u8a3a\u65ad\u306b\u9069\u3057\u305f\u753b\u50cf\u3092\u4f5c\u6210\u3059\u308b\u3053\u3068\u306e\u57fa\u672c\u3068\u306a\u308a\u307e\u3059\u3002\u540c\u3058\u6a5f\u5668\u3092\u4f7f\u3063\u3066\u3044\u3066\u3082\u3001\u64ae\u5f71\u3059\u308b\u533b\u5e2b\u3084\u6280\u5e2b\u306e\u71b1\u610f\u306e\u3042\u308b\u753b\u50cf\u306f\u3068\u3063\u3066\u3082\u7dba\u9e97\u3067\u3001\u8aac\u5f97\u529b\u306e\u3042\u308b\u753b\u50cf\u306b\u306a\u308a\u307e\u3059\u3002\u753b\u50cf\u306e\u57fa\u672c\u306b\u7acb\u3061\u8fd4\u3063\u3066\u3001CT\u3084MRI\u306e\u753b\u50cf\u3092\u898b\u76f4\u3057\u3066\u306f\u3044\u304b\u304c\u3067\u3057\u3087\u3046\u304b\u3002<\/p>\n","protected":false},"featured_media":295,"template":"","class_list":["post-293","column","type-column","status-publish","has-post-thumbnail","hentry"],"acf":[],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- 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