急性胸腰段脊柱脊髓损伤诊断中多种影像的互补作用

目的　讨论各种影像方法在诊断急性胸腰段脊柱和脊髓损伤的优缺点及其互补作用。方法　收集了 12 9例急性胸腰段脊椎损伤病例 ,均有X线和CT材料 ,其中 2 7例有磁共振成像 ,进行比较分析。结果　本组 12 9例 ,14 4个椎体骨折共 15 6个骨折部位 ,其中 84例椎管损伤 ,72例椎管狭窄 ,MRI检查的 2 7个病例均有脊髓损伤。结论　在急性脊柱损伤的诊断中 ,X线平片是基础 ,CT检查可作为补充 ,而MR对脊髓损伤诊断最佳。     

脊柱外伤的平片、CT和MRI诊断价值对比

目的 探讨平片、CT、MRI对脊柱外伤不同的诊断价值.方法 对比分析47例脊柱外伤的X线平片、CT、MRI图像,对椎体附件骨折检出率、脊柱曲度改变、碎骨片移位、椎管容积改变、椎间盘损伤、韧带损伤、脊髓损伤、神经根损伤、椎旁软组织损伤的诊断效果进行评价.结果 平片、CT、MRI检出压缩骨折椎体均为46个,分辨出椎体碎骨片分别是47、134、84块.MRI还检出12个单纯骨挫伤的椎体.CT、MRI显示34块碎骨片压迫脊髓、51个椎间盘形态改变.结论 对脊柱外伤,X线平片诊断价值有限;CT对骨折线、碎骨片移位显示最佳;MRI能显示骨折、骨挫伤、脊髓、椎间盘、神经根、韧带、软组织损伤.     

多层螺旋CT和X线平片检查脊柱爆裂型骨折的临床分析

目的探讨X线平片和CT检查在脊柱爆裂型骨折诊断中的应用价值。方法对82例脊柱爆裂型骨折患者分别采用X线平片和多层螺旋CT检查,比较两种影像学方法在脊柱爆裂型骨折诊断中的应用效果。结果多层螺旋CT在对脊柱爆裂型骨折患者的检查时间和检查费用均明显高于X线平片,且差异具有统计学意义。多层螺旋CT对脊柱爆裂型骨折的检出率(95.12%)明显高于X线平片(53.66%),且差异具有统计学意义。结论 X线平片可作为影像诊断的基础,应结合CT影像,根据各自优点从而做出正确诊断。     

急性颈椎外伤的MRI诊断

目的 分析急性颈椎外伤的MRI征象,评价MRI在急性颈椎外伤诊断中的价值及限度。方法收集急性颈椎外伤150例,均有MRI检查和X线平片,15例有CT片,采用14个参数进行分析记录。结果150例中MRI检出骨折51个,小关节脱位30个,椎体脱位35个;外伤性椎间盘突出40个,硬膜外血肿2例;脊髓损伤69例;脊髓受压迫20例;前、后纵韧带损伤21例;棘间韧带和黄韧带损伤15例;椎前血肿或水肿30例;椎旁和背侧软组织损伤40例;X线平片发现椎体骨折55个,椎体脱位35个;小关节脱位35例,附件骨折25个,椎前软组织肿胀20例。15例CT均发现骨折,小关节脱位,椎管狭窄。结论MRI在显示脊髓、韧带、椎间盘和软组织损伤方面优于CT和X线平片。MRI能全面反映颈椎各种损伤的病理特征,为评估颈椎稳定性提供充分的依据;MRI和X线片的骨折检出率没有明显差异,CT应该用于复杂的颈椎骨折检查。     

MRI对急性脊髓损伤的评价

目的 探讨MRI在评价急性脊髓损伤中的临床应用价值.方法 收集急性脊髓损伤患者50例,行同期X线片、CT和MRI检查,MRI检查应用1.5T超导型磁共振成像仪,采用自旋回波序列和快速自旋回波序列,常规矢状位及横轴位扫描,17例加扫冠状位.结果 脊髓水肿:MRI检出16例,CT检出4例;脊髓挫伤出血:MRI检出21例,CT检出11例;脊髓受压变形:MRI检出34例,CT检出15例;脊髓断裂:MRI检出10例,CT检出3例.X线片未检出上述脊髓损伤.结论 MRI对评估脊髓损伤明显优于X线片和CT扫描,是急性脊髓损伤的最佳检查与诊断方法.     

MRI对急性脊髓损伤的评价

目的 探讨MRI在评价急性脊髓损伤中的临床应用价值.方法 收集急性脊髓损伤患者50例,行同期X线片、CT和MRI检查,MRI检查应用1.5T超导型磁共振成像仪,采用自旋回波序列和快速自旋回波序列,常规矢状位及横轴位扫描,17例加扫冠状位.结果 脊髓水肿:MRI检出16例,CT检出4例;脊髓挫伤出血:MRI检出21例,CT检出11例;脊髓受压变形:MRI检出34例,CT检出15例;脊髓断裂:MRI检出10例,CT检出3例.X线片未检出上述脊髓损伤.结论 MRI对评估脊髓损伤明显优于X线片和CT扫描,是急性脊髓损伤的最佳检查与诊断方法.     

MRI对急性脊髓损伤的评价

目的 探讨MRI在评价急性脊髓损伤中的临床应用价值.方法 收集急性脊髓损伤患者50例,行同期X线片、CT和MRI检查,MRI检查应用1.5T超导型磁共振成像仪,采用自旋回波序列和快速自旋回波序列,常规矢状位及横轴位扫描,17例加扫冠状位.结果 脊髓水肿:MRI检出16例,CT检出4例;脊髓挫伤出血:MRI检出21例,CT检出11例;脊髓受压变形:MRI检出34例,CT检出15例;脊髓断裂:MRI检出10例,CT检出3例.X线片未检出上述脊髓损伤.结论 MRI对评估脊髓损伤明显优于X线片和CT扫描,是急性脊髓损伤的最佳检查与诊断方法.     

MRI对急性脊髓损伤的评价

目的 探讨MRI在评价急性脊髓损伤中的临床应用价值.方法 收集急性脊髓损伤患者50例,行同期X线片、CT和MRI检查,MRI检查应用1.5T超导型磁共振成像仪,采用自旋回波序列和快速自旋回波序列,常规矢状位及横轴位扫描,17例加扫冠状位.结果 脊髓水肿:MRI检出16例,CT检出4例;脊髓挫伤出血:MRI检出21例,CT检出11例;脊髓受压变形:MRI检出34例,CT检出15例;脊髓断裂:MRI检出10例,CT检出3例.X线片未检出上述脊髓损伤.结论 MRI对评估脊髓损伤明显优于X线片和CT扫描,是急性脊髓损伤的最佳检查与诊断方法.     

MRI对急性脊髓损伤的评价

目的 探讨MRI在评价急性脊髓损伤中的临床应用价值.方法 收集急性脊髓损伤患者50例,行同期X线片、CT和MRI检查,MRI检查应用1.5T超导型磁共振成像仪,采用自旋回波序列和快速自旋回波序列,常规矢状位及横轴位扫描,17例加扫冠状位.结果 脊髓水肿:MRI检出16例,CT检出4例;脊髓挫伤出血:MRI检出21例,CT检出11例;脊髓受压变形:MRI检出34例,CT检出15例;脊髓断裂:MRI检出10例,CT检出3例.X线片未检出上述脊髓损伤.结论 MRI对评估脊髓损伤明显优于X线片和CT扫描,是急性脊髓损伤的最佳检查与诊断方法.     

MRI对急性脊髓损伤的评价

目的 探讨MRI在评价急性脊髓损伤中的临床应用价值.方法 收集急性脊髓损伤患者50例,行同期X线片、CT和MRI检查,MRI检查应用1.5T超导型磁共振成像仪,采用自旋回波序列和快速自旋回波序列,常规矢状位及横轴位扫描,17例加扫冠状位.结果 脊髓水肿:MRI检出16例,CT检出4例;脊髓挫伤出血:MRI检出21例,CT检出11例;脊髓受压变形:MRI检出34例,CT检出15例;脊髓断裂:MRI检出10例,CT检出3例.X线片未检出上述脊髓损伤.结论 MRI对评估脊髓损伤明显优于X线片和CT扫描,是急性脊髓损伤的最佳检查与诊断方法.     

胸腰椎外伤后脊髓损伤CT平扫的局限性

目的：探讨CT平扫诊断胸腰椎外伤后脊髓损伤的局限性。方法：收集近7a来48例胸腰椎外伤的CT平扫结果、X线片结果及临床资料，并进行对比分析。结果：48例胸腰椎外伤病人中椎体骨折73个，单发59个，多发14个，其中CT示碎骨入椎管内的有25处，血肿1处，附件骨折36处，X线片漏报附件骨折16处(44％)瘫痪病人11例，均经手术治疗，术中发现椎管内碎骨15处，血肿2处，脊髓挫伤或断裂10处。结论：CT平扫对椎体、附件骨折、椎管形态改变和碎骨片移位及明显的椎管内血肿的诊断，优于X线平片，但是对脊髓损伤的显示有局限性，建议胸腰椎外伤后瘫痪病人做脊髓造影(CTM)或磁共振成像(MRI)。     

急性脊椎外伤的MRI诊断价值

目的: 评价MRI诊断急性脊椎外伤的价值.材料和方法: 回顾性分析18例急性脊椎外伤的MRI表现.结果: 18例急性脊椎外伤中MRI清楚显示椎体骨折14个,椎体脱位4个,椎间盘突出13个,急性脊髓损伤11个,其中不同程度脊髓受压损伤8例,离断3例.结论: MRI能清楚显示椎体骨折、椎体滑脱、椎间盘突出、脊髓损伤等细节情况,是急性脊椎外伤首选的影像检查方法.     

Magnetic resonance imaging evaluation of acute spine trauma

A comparison study of magnetic resonance imaging (MR), computed tomography (CT), and plain film evaluation of 113 consecutive spine trauma cases was conducted. The rate of true-positive findings (sensitivity) on MR was shown to be significantly higher than for CT or plain films in the evaluation of soft tissue or ligamentous injury (P<0.001). MR had a significantly lower rate of positive findings for fracture than CT (P<0.001) and was also shown to be significantly less sensitive for fracture than plain films (P<0.001). Spinal cord contusion, epidural hematoma, high-grade stenosis, and ligamentous or soft tissue injury were best evaluated with MR. MR, CT, and plain films are all important modalities for the evaluation of acute spine trauma. It is recommended that, after clinical examination, patients with spine trauma be evaluated first by plain film. If there is clinical or radiologic suspicion for acute spine injury, MR should be the next diagnostic procedure performed. If MR is positive for acute injury, CT may be indicated. CT best defines the extent of bony injury, and MR the extent of soft tissue injury, intrinsic spinal cord pathology, and extrinsic dural sac compression.     

急性颈椎外伤的CT诊断与评价

目的分析急性颈椎外伤（ａｃｕｔｅｃｅｒｖｉｃａｌｔｒａｕｍａ，ＡＣＴ）的ＣＴ表现，评价ＣＴ在ＡＣＴ诊断中的价值及限度。方法对临床拟诊的ＡＣＴ３７例行平片及薄层ＣＴ或高分辨率ＣＴ（ＨＲＣＴ）检查，并做多平面及三维（３Ｄ）重建。４例同时行ＭＲＩ检查。结果经影像学诊断３１例ＡＣＴ，其中ＣＴ诊断２９例，２例ＣＴ阴性而由平片及ＭＲＩ各确诊１例。平片与ＣＴ的骨折检出率分别为３２．８％及９８．５％，两者有极显著性差异。结论ＣＴ能对ＡＣＴ做出较全面而准确的诊断，与平片比较ＣＴ明显提高了骨折的检出率。在ＡＣＴ的诊断中，ＣＴ尚有某些限度。     

Whole spine MRI in the assessment of acute vertebral body trauma

Objective To determine the incidence and types of multilevel vertebral body injury in association with acute spinal trauma as assessed by whole spine MRI.Design and patients All acute admissions to a regional spinal injury unit had whole spine MRI carried out, to detect occult vertebral body injury. Two radiologists assessed 127 cases prospectively, over a period of 3 years. All cases had T2-weighted sagittal imaging of the whole spine (where possible using a T2-weighted fat-suppressed sequence), with T1-weighted imaging in both sagittal and axial planes covering the primary injury. The incidence of secondary injury (defined as either bone bruising, wedge compression fracture or burst fracture) was determined and defined by type, site and relationship to the primary injury.Results Seventy-seven per cent of cases had a secondary injury level. Of these, bone bruising was the commonest but often occurred in combination with secondary wedge compression fracture or burst fracture. MRI detected 27 non-contiguous wedge compression fractures and 16 non-contiguous burst fractures, giving an incidence of secondary level, non-contiguous fracture of approximately 34%.Conclusion A higher frequency of secondary vertebral body injury may be defined by MRI than has been described in previous studies based on radiographic evaluation of the whole spine. Whole spine MRI in assessment for occult vertebral body fracture enables increased confidence in the conservative or surgical management of patients with severe spinal injury.     

A comparison between M.R.I. and C.T. in acute spinal trauma.

Magnetic Resonance Imaging (MRI) at 0.3T and Computed Tomography (CT) were compared in the retrospective evaluation of 34 patients with acute spinal cord injury. MRI was highly accurate in the imaging of vertebral body fracture, and spondylitic changes, and is the method of choice for imaging ligament injury, traumatic disc protrusion and spinal cord compression. It was also useful for the identification of subtle subluxations in the sagittal plane. CT remains the method of choice for imaging neural arch fractures. MRI at 0.3T is a valid technique for assessing patients with acute spinal trauma.     

磁共振成像诊断创伤后脊柱稳定性的特点与价值

用0.35T MRI 研究了103例创后脊柱的稳定性。平片法及CT 法(Denis 法)作为MRI 诊断脊柱稳定性的标准。平片及CT 上发现的脊柱不稳征象均可为MRI 矢状面及横断面发现。在平片诊断中有75%不稳定脊柱在MRI 上可见脊髓损伤。在CT 诊断中75%不稳定脊柱在MRI 上可见脊髓损伤。作者认为用MRI 诊断创伤后脊柱不稳很有价值,MRI 不但具有平片和CT 的优点而且可了解脊髓是否损伤。     

颈椎损伤的CT诊断

目的：分析颈椎损伤的ＣＴ表现,评价其诊断意义。材料与方法：回顾分析２６例颈椎损伤的ＣＴ扫描资料。结果：椎体骨折３４节;单椎体骨折７例,多椎体骨折６例骨折伴脱位１１例,单纯关节脱位２例;三柱中以后柱（４７％）和前中后柱（２１％）骨折多见;椎管和神经孔狭窄率分别为５９．１％、１６．２％。结论：ＣＴ是颈椎听凭的重要检查手段,是诊断椎管和神经孔狭窄,横突孔破裂,出血、环椎横韧带损伤的有效方法。