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常识 核磁共振和CT的技术区别

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发表于 2020-10-21 13:54:51 | 显示全部楼层 |阅读模式

                    

                    

                    
                    
                    <p><img src="http://mmbiz.qpic.cn/mmbiz/A1DicCH9Vl6N81EEZNTTD5LibxzSnnmKnSFk9xibdbNnibmeNLA80U2iaRbtaFWLZy7mf9Cichhhgzib3mvQsqBmX5WlQ/0" data-ratio="0.25" data-w="400"  /></p><p class="p15" style="text-indent:21.0000pt; margin-bottom:0pt; margin-top:0pt; padding:0pt 0pt 0pt 0pt ; line-height:21.0000pt; background:rgb(245,249,240); "><span style="color: rgb(51, 51, 51); letter-spacing: 0pt; font-size: 12pt; font-family: 微软雅黑;">计算机断层扫描(CT)能在一个横断解剖平面上,精确地探测各类不合组织间密度的藐小不合,是不雅不雅察骨关节及软组织病变的一种较抱负的查抄编制。在关节炎的诊断上,首要用于查抄脊柱,出格是骶髂关节。CT优于传统X线查抄的地方在于其分辩率高,并且还能做轴位成像。因为CT的密度分辩率高,所以软组织、骨与关节都能显得很清楚。</span><span style="color: rgb(51, 51, 51); letter-spacing: 0pt; font-size: 12pt; font-family: 微软雅黑;"><o:p></o:p></span></p><p class="p15" style="text-indent:21.0000pt; margin-bottom:0pt; margin-top:0pt; padding:0pt 0pt 0pt 0pt ; line-height:21.0000pt; background:rgb(245,249,240); "><span style="color: rgb(51, 51, 51); letter-spacing: 0pt; font-size: 12pt; font-family: 微软雅黑;">计算机断层扫描(CT)能在一个横断解剖平面上,精确地探测各类不合组织间密度的藐小不合,是不雅不雅察骨关节及软组织病变的一种较抱负的查抄编制。在关节炎的诊断上,首要用于查抄脊柱,出格是骶髂关节。CT优于传统X线查抄的地方在于其分辩率高,并且还能做轴位成像。因为CT的密度分辩率高,所以软组织、骨与关节都能显得很清楚。加上CT可以做轴位扫描,一些传统X线影象上分辩较坚苦的关节都能在叮图象上“本相毕露”。如因为骶髂关节的关节面生来就倾斜和曲折,同时还有其他组织之堆叠,当然大年夜大年夜大年夜都病例的骶髂关节用x线片已可能达到要求,但有时X线查抄发现骶髂关节炎比较坚苦,则对有问题的病人便可做CT查抄。</span><span style="color: rgb(51, 51, 51); letter-spacing: 0pt; font-size: 12pt; font-family: 微软雅黑;"><o:p></o:p></span></p><p class="p15" style="text-indent:21.0000pt; margin-bottom:0pt; margin-top:0pt; padding:0pt 0pt 0pt 0pt ; line-height:21.0000pt; background:rgb(245,249,240); "><span style="color: rgb(51, 51, 51); letter-spacing: 0pt; font-size: 12pt; font-family: 微软雅黑;">磁共振成像(MRI)是遵循在强磁场中放射波和氢核的彼此感化而获得的。磁共振一问世,很快就成为在对很多疾病诊断方面有效的成像东西,包含骨骼肌肉系统。肌肉骨骼系统最适于做磁共振成像,因为它的组织密度对比范围大年夜大年夜。在骨、关节与软组织病变的诊断方面,磁共振成像因为具有多于CT数倍的成像参数和高度的软组织分辩率,使其对软组织的对比度较着高于CT。磁共振成像经由过程它多向平面成像的功能,利用高分辩的毒面线圈可较着提高各关节部位的成像质量,使神经、肌腱、韧带、血管、软骨等其他影象查抄所不克不及分辩的细微功能得以显示。磁共振成像在骨关节系统的不足的地方是,对骨与软组织病变定性诊断无特异性,成像速度慢,在查抄过程中。病人自立或不自立的勾当可引发活动伪影,影响诊断。</span><span style="color: rgb(51, 51, 51); letter-spacing: 0pt; font-size: 12pt; font-family: 微软雅黑;"><o:p></o:p></span></p><p class="p15" style="text-indent:21.0000pt; margin-bottom:0pt; margin-top:0pt; padding:0pt 0pt 0pt 0pt ; line-height:21.0000pt; background:rgb(245,249,240); "><span style="color: rgb(51, 51, 51); letter-spacing: 0pt; font-size: 12pt; font-family: 微软雅黑;">X线摄片、CT、磁共振成像可称为三驾马车,三者有机地连络,使当前影象学查抄既扩大年夜大年夜了查抄范围,又提高了诊断程度。</span><span style="color: rgb(51, 51, 51); letter-spacing: 0pt; font-size: 12pt; font-family: 微软雅黑;"><o:p></o:p></span></p><p style="white-space: normal;"><img src="http://mmbiz.qpic.cn/mmbiz/A1DicCH9Vl6N81EEZNTTD5LibxzSnnmKnS13QroM6ibPUaDiaaGTAEwUlicyZB4f60bJJHgtf70yxaebOMGjxTVVBrQ/640" data-ratio="0.9920948616600791" data-w=""  /></p><p style=""><strong style="max-width: 100%; font-family: 宋体; font-size: 13px; line-height: 2em; text-align: justify; text-indent: 32px; word-wrap: break-word !important; box-sizing: border-box !important;"><span style="max-width: 100%; color: rgb(15, 36, 62); word-wrap: break-word !important; box-sizing: border-box !important;"><strong style="max-width: 100%; color: rgb(62, 62, 62); word-wrap: break-word !important; box-sizing: border-box !important;"><span style="max-width: 100%; color: rgb(192, 0, 0); word-wrap: break-word !important; box-sizing: border-box !important;"><strong style="max-width: 100%; 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color: rgb(62, 62, 62); word-wrap: break-word !important; box-sizing: border-box !important;"><strong style="max-width: 100%; line-height: 2em; word-wrap: break-word !important; box-sizing: border-box !important;"><span style="max-width: 100%; color: rgb(15, 36, 62); word-wrap: break-word !important; box-sizing: border-box !important;"><strong style="max-width: 100%; color: rgb(62, 62, 62); word-wrap: break-word !important; box-sizing: border-box !important;"><span style="max-width: 100%; color: rgb(192, 0, 0); word-wrap: break-word !important; box-sizing: border-box !important;"><strong style="max-width: 100%; text-align: center; white-space: normal; word-wrap: break-word !important; box-sizing: border-box !important;"><span style="max-width: 100%; color: rgb(0, 176, 80); word-wrap: break-word !important; box-sizing: border-box !important;">您看此文耗时</span></strong><strong style="max-width: 100%; color: rgb(62, 62, 62); line-height: 2em; word-wrap: break-word !important; box-sizing: border-box !important;"><strong style="max-width: 100%; word-wrap: break-word !important; box-sizing: border-box !important;"><img src="http://b255.photo.store.qq.com/psb?/V13AWLGJ32XyzL/w8pY6Xeekr4WiASiPqFeI4*nEQTimG2CRlYpMNObWp0!/b/dAoWBJiBCwAA&amp;bo=EAAkAAAAAAACABA!&amp;rf=photoDetail" height="48" width="16px" data-ratio="2.25" data-w="16" width="16px" src="http://b255.photo.store.qq.com/psb?/V13AWLGJ32XyzL/w8pY6Xeekr4WiASiPqFeI4*nEQTimG2CRlYpMNObWp0!/b/dAoWBJiBCwAA&amp;bo=EAAkAAAAAAACABA!&amp;rf=photoDetail" style="border: 0px; background-attachment: scroll; background-image: none; word-wrap: break-word !important; box-sizing: border-box !important; width: 16px !important; visibility: visible !important; background-position: 0% 0%;"  /> <img src="http://b255.photo.store.qq.com/psb?/V13AWLGJ32XyzL/sdgIQmdgpbv1qhfBaqQI7igWbfePRJtEopMnzVOJBGo!/b/dGOYCJj9CgAA&amp;bo=EAAkAAAAAAACABA!&amp;rf=photoDetail" height="48" width="16px" data-ratio="2.25" data-w="16" width="16px" src="http://b255.photo.store.qq.com/psb?/V13AWLGJ32XyzL/sdgIQmdgpbv1qhfBaqQI7igWbfePRJtEopMnzVOJBGo!/b/dGOYCJj9CgAA&amp;bo=EAAkAAAAAAACABA!&amp;rf=photoDetail" style="border: 0px; background-attachment: scroll; background-image: none; word-wrap: break-word !important; box-sizing: border-box !important; width: 16px !important; visibility: visible !important; background-position: 0% 0%;"  />·<img src="http://b255.photo.store.qq.com/psb?/V13AWLGJ32XyzL/07UYdIzYPtLQgP1nOAPqVdialbSQvtB7tfo0sUoS.Es!/b/dAWH*5cMDAAA&amp;bo=EAAkAAAAAAACABA!&amp;rf=photoDetail" height="48" width="16px" data-ratio="2.25" data-w="16" width="16px" src="http://b255.photo.store.qq.com/psb?/V13AWLGJ32XyzL/07UYdIzYPtLQgP1nOAPqVdialbSQvtB7tfo0sUoS.Es!/b/dAWH*5cMDAAA&amp;bo=EAAkAAAAAAACABA!&amp;rf=photoDetail" style="border: 0px; background-attachment: scroll; background-image: none; word-wrap: break-word !important; box-sizing: border-box !important; width: 16px !important; visibility: visible !important; background-position: 0% 0%;"  /> <img src="http://b255.photo.store.qq.com/psb?/V13AWLGJ32XyzL/aVOw.rnxsJ1hibzYki6iDKOwNRZySS.nbRjM9y2dfbM!/b/dAY2B5iICwAA&amp;bo=EAAkAAAAAAACABA!&amp;rf=photoDetail" height="48" width="16px" data-ratio="2.25" data-w="16" width="16px" src="http://b255.photo.store.qq.com/psb?/V13AWLGJ32XyzL/aVOw.rnxsJ1hibzYki6iDKOwNRZySS.nbRjM9y2dfbM!/b/dAY2B5iICwAA&amp;bo=EAAkAAAAAAACABA!&amp;rf=photoDetail" style="border: 0px; background-attachment: scroll; background-image: none; word-wrap: break-word !important; box-sizing: border-box !important; width: 16px !important; visibility: visible !important; background-position: 0% 0%;"  /><strong style="max-width: 100%; white-space: normal; word-wrap: break-word !important; box-sizing: border-box !important;"><span style="max-width: 100%; color: rgb(0, 176, 80); word-wrap: break-word !important; box-sizing: border-box !important;">只需</span></strong></strong></strong></span></strong></span></strong></strong></span></strong></span></strong><span style="max-width: 100%; word-wrap: break-word !important; box-sizing: border-box !important;">1</span><strong style="max-width: 100%; font-family: 宋体; font-size: 13px; line-height: 2em; text-align: justify; text-indent: 32px; word-wrap: break-word !important; box-sizing: border-box !important;"><span style="max-width: 100%; color: rgb(15, 36, 62); word-wrap: break-word !important; box-sizing: border-box !important;"><strong style="max-width: 100%; color: rgb(62, 62, 62); word-wrap: break-word !important; box-sizing: border-box !important;"><span style="max-width: 100%; color: rgb(192, 0, 0); word-wrap: break-word !important; box-sizing: border-box !important;"><strong style="max-width: 100%; color: rgb(62, 62, 62); word-wrap: break-word !important; box-sizing: border-box !important;"><strong style="max-width: 100%; line-height: 2em; word-wrap: break-word !important; box-sizing: border-box !important;"><span style="max-width: 100%; color: rgb(15, 36, 62); word-wrap: break-word !important; box-sizing: border-box !important;"><strong style="max-width: 100%; color: rgb(62, 62, 62); word-wrap: break-word !important; box-sizing: border-box !important;"><span style="max-width: 100%; color: rgb(192, 0, 0); word-wrap: break-word !important; box-sizing: border-box !important;"><strong style="max-width: 100%; color: rgb(62, 62, 62); line-height: 2em; word-wrap: break-word !important; box-sizing: border-box !important;"><span style="max-width: 100%; font-family: Calibri, sans-serif; color: red; word-wrap: break-word !important; box-sizing: border-box !important;"></span><strong style="max-width: 100%; word-wrap: break-word !important; box-sizing: border-box !important;"><span style="max-width: 100%; font-family: Calibri, sans-serif; color: red; word-wrap: break-word !important; box-sizing: border-box !important;"></span><strong style="max-width: 100%; white-space: normal; word-wrap: break-word !important; box-sizing: border-box !important;"><span style="max-width: 100%; color: rgb(0, 176, 80); word-wrap: break-word !important; box-sizing: border-box !important;">秒<strong style="max-width: 100%; color: rgb(62, 62, 62); line-height: 2em; white-space: pre-wrap; word-wrap: break-word !important; box-sizing: border-box !important;"><span style="max-width: 100%; color: rgb(15, 36, 62); word-wrap: break-word !important; box-sizing: border-box !important;"><strong style="max-width: 100%; color: rgb(62, 62, 62); word-wrap: break-word !important; box-sizing: border-box !important;"><span style="max-width: 100%; color: rgb(192, 0, 0); word-wrap: break-word !important; box-sizing: border-box !important;"><strong style="max-width: 100%; color: rgb(62, 62, 62); line-height: 2em; word-wrap: break-word !important; box-sizing: border-box !important;"><strong style="max-width: 100%; word-wrap: break-word !important; box-sizing: border-box !important;"><strong style="max-width: 100%; white-space: normal; word-wrap: break-word !important; box-sizing: border-box !important;"><span style="max-width: 100%; color: rgb(0, 176, 80); word-wrap: break-word !important; box-sizing: border-box !important;">转发</span></strong></strong></strong></span></strong></span></strong></span></strong></strong></strong></span></strong></span></strong></strong></span></strong></span></strong></p><p style=""><strong style="max-width: 100%; font-family: 宋体; font-size: 13px; line-height: 2em; text-align: justify; text-indent: 32px; word-wrap: break-word !important; box-sizing: border-box !important;"><span style="max-width: 100%; color: rgb(15, 36, 62); word-wrap: break-word !important; box-sizing: border-box !important;"><strong style="max-width: 100%; color: rgb(62, 62, 62); word-wrap: break-word !important; box-sizing: border-box !important;"><span style="max-width: 100%; color: rgb(192, 0, 0); word-wrap: break-word !important; box-sizing: border-box !important;"><strong style="max-width: 100%; color: rgb(62, 62, 62); word-wrap: break-word !important; box-sizing: border-box !important;"><strong style="max-width: 100%; line-height: 2em; word-wrap: break-word !important; box-sizing: border-box !important;"><span style="max-width: 100%; color: rgb(15, 36, 62); word-wrap: break-word !important; box-sizing: border-box !important;"><strong style="max-width: 100%; color: rgb(62, 62, 62); word-wrap: break-word !important; box-sizing: border-box !important;"><span style="max-width: 100%; color: rgb(192, 0, 0); word-wrap: break-word !important; box-sizing: border-box !important;"><strong style="max-width: 100%; color: rgb(62, 62, 62); line-height: 2em; word-wrap: break-word !important; box-sizing: border-box !important;"><strong style="max-width: 100%; word-wrap: break-word !important; box-sizing: border-box !important;"><strong style="max-width: 100%; white-space: normal; word-wrap: break-word !important; box-sizing: border-box !important;"><span style="max-width: 100%; color: rgb(0, 176, 80); word-wrap: break-word !important; box-sizing: border-box !important;"><strong style="max-width: 100%; color: rgb(62, 62, 62); line-height: 2em; white-space: pre-wrap; word-wrap: break-word !important; box-sizing: border-box !important;"><span style="max-width: 100%; color: rgb(15, 36, 62); word-wrap: break-word !important; box-sizing: border-box !important;"><strong style="max-width: 100%; color: rgb(62, 62, 62); word-wrap: break-word !important; box-sizing: border-box !important;"><span style="max-width: 100%; color: rgb(192, 0, 0); word-wrap: break-word !important; box-sizing: border-box !important;"><strong style="max-width: 100%; color: rgb(62, 62, 62); line-height: 2em; word-wrap: break-word !important; box-sizing: border-box !important;"><strong style="max-width: 100%; word-wrap: break-word !important; box-sizing: border-box !important;"><strong style="max-width: 100%; white-space: normal; word-wrap: break-word !important; box-sizing: border-box !important;"><span style="max-width: 100%; color: rgb(0, 176, 80); word-wrap: break-word !important; box-sizing: border-box !important;"><span style="max-width: 100%; word-wrap: break-word !important; box-sizing: border-box !important;"><span style="max-width: 100%; word-wrap: break-word !important; box-sizing: border-box !important;"><strong style="max-width: 100%; font-size: 12pt; letter-spacing: 0pt; line-height: 32px; text-align: center; text-indent: 0pt; color: rgb(255, 255, 0); vertical-align: baseline; background-color: rgb(0, 0, 0); word-wrap: break-word !important; box-sizing: border-box !important;">转载</strong><strong style="max-width: 100%; font-size: 12pt; letter-spacing: 0pt; line-height: 32px; text-align: center; text-indent: 0pt; color: rgb(255, 255, 255); vertical-align: baseline; background-color: rgb(0, 0, 0); word-wrap: break-word !important; box-sizing: border-box !important;">是一种</strong><strong style="max-width: 100%; font-size: 12pt; letter-spacing: 0pt; line-height: 32px; text-align: center; text-indent: 0pt; color: rgb(255, 0, 0); vertical-align: baseline; background-color: rgb(0, 0, 0); word-wrap: break-word !important; box-sizing: border-box !important;">智慧</strong><strong style="max-width: 100%; font-size: 12pt; letter-spacing: 0pt; line-height: 32px; text-align: center; text-indent: 0pt; color: rgb(255, 255, 255); vertical-align: baseline; background-color: rgb(0, 0, 0); word-wrap: break-word !important; box-sizing: border-box !important;">,</strong><strong style="max-width: 100%; font-size: 12pt; letter-spacing: 0pt; line-height: 32px; text-align: center; text-indent: 0pt; color: rgb(0, 176, 240); vertical-align: baseline; background-color: rgb(0, 0, 0); word-wrap: break-word !important; box-sizing: border-box !important;">分享</strong><strong style="max-width: 100%; font-size: 12pt; letter-spacing: 0pt; line-height: 32px; text-align: center; text-indent: 0pt; color: rgb(255, 255, 255); vertical-align: baseline; background-color: rgb(0, 0, 0); word-wrap: break-word !important; box-sizing: border-box !important;">是一种</strong><strong style="max-width: 100%; font-size: 12pt; letter-spacing: 0pt; line-height: 32px; text-align: center; text-indent: 0pt; color: rgb(255, 192, 0); vertical-align: baseline; background-color: rgb(0, 0, 0); word-wrap: break-word !important; box-sizing: border-box !important;">美德</strong></span></span></span></strong></strong></strong></span></strong></span></strong></span></strong></strong></strong></span></strong></span></strong></strong></span></strong></span></strong></p><p><br  /></p>
               
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