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1.
目的:分析窦口鼻道复合体骨折的CT表现特征,以提高诊断水平。材料和方法:对371例颌面部外伤病人行螺旋CT横断位扫描,扫描后行冠状位重建(MPR)处理,对冠状位重建图像进行诊断和分析。结果:检出45例病人有窦口鼻道复合体骨折。其中单纯型骨折11例(24.44%),复合型骨折34例(75.56%),错位性骨折14例(31.11%),粉碎性骨折31例(68.89%);10例(22.22%)为双侧窦口鼻道复合体骨折,35例(77.78%)为单侧骨折。45例病人均合并颌面部其他部位骨折。所有病例均可在螺旋CT冠状位重建(MPR)图像中显示。结论:窦口鼻道复合体骨折以单侧复合型骨折最多见,骨折类型多为粉碎性。螺旋CT冠状位重建(MPR)图像能清楚显示窦口鼻道复合体骨折及窦口鼻道的阻塞情况,对于指导手术治疗及评价预后具有重要的临床价值。  相似文献   

2.
目的:探讨眼眶骨折的临床特点与螺旋CT诊断价值,方法:56例56眼,全部行螺旋CT轴位扫描,并在平扫基础上进行冠状位重建、多曲面重建及三维重建,对眼眶骨折分为3型。Ⅰ型为爆裂骨折;Ⅱ型为直接骨折;Ⅲ型匆复台骨折。结果:Ⅰ型26例占46.4%,Ⅱ型10例占17.9%,Ⅲ型20例占35.7%。轴扫显示骨折50例,冠状位重建显示53例,3D+MPR显示56例。结论:螺旋CT能清楚显示眼眶骨折,轴位扫描及冠状位重建都是非常重要的,螺旋CT的多曲面重建及三维重建技术对眼眶骨折的诊断和治疗具有重要的意义。  相似文献   

3.
眼眶外壁骨折的CT分析   总被引:2,自引:0,他引:2  
目的:探讨眼眶外壁骨折的临床特点并评价CT检查对其诊断价值。方法:以155例眼眶外壁骨折为研究对象,均行眼眶横断及冠状位HRCT检查。结果:眶外壁骨折受伤原因以车祸最多,失明者达56.77%,还可表现为眼球运动受限、眼球内陷等。眼眶外壁分为四段,以前三段骨折多见,且多波及颧骨蝶骨缝,造成骨缝分离移位;后段骨折少见,但失明发生率却明显高于其它各段(P<0.01)。单纯眶外壁骨折少见,仅占21.29%;外壁骨折伴发邻近骨折占78.71%,多伴发其它眶壁骨折。结论:HRCT检查是诊断眶外壁骨折较好的方法,眼部创伤后应及时行CT检查。  相似文献   

4.
眼眶单纯内侧壁骨折的CT诊断   总被引:9,自引:1,他引:8  
目的 分析和评价CT、特别是高分辨率CT(HRCT)扫描对眼眶单纯内侧壁骨折的诊断价值。材料与方法 回顾性分析30例眼眶单纯内侧壁骨折患者的CT资料。男27例,女3例。轴位扫描22例,冠状位和冠状位加轴位扫描各4例,其中25例行HRCT扫描。结果 骨折发生在眶内缘1例,筛骨眶板29例。结果 CT特别是HRCT能细致地显示眼眶内侧壁的解剖结构,能精确地显示眼眶单纯内侧壁骨折的直接、间接征象和并发症,是最重要和有价值的检查方法。  相似文献   

5.
423例眼眶骨折的CT研究   总被引:69,自引:1,他引:68  
作者分析423例眼眶骨折的临床与CT资料,根据骨折的特点将眼眶骨折分为三类,即爆裂骨折、直接骨折及复合型骨折。爆裂骨折最多见,占52.72%骨折发生于眶内,下壁,以单壁骨折较多。直接骨折占30.02%,以单壁骨折多见,并以外壁骨折较多。复合型骨折占17.26%。各壁均可发生,均为多壁骨折。眼眶骨折的直接征象是眶壁骨质连续性中断、粉碎及移位。副鼻窦内“泪滴”征是诊断眼眶下壁骨折的特异性间接征象,由于  相似文献   

6.
眼眶爆裂骨折的CT表现(附64例分析)   总被引:10,自引:1,他引:9  
目的:通过对眼眶爆裂骨折CT表现的分析,达到对本病早期诊断的目的。方法:作者回顾性分析了64例(男50,女14)眼眶爆裂骨折的CT征象、好发部位和发病原因。病人的年龄在5~57岁之间,平均31.8 岁。根据眼眶骨折的CT表现,将其分为三型:(1)单眶壁爆裂骨折;(2)多眶壁爆裂骨折;(3)混合型骨折(眼眶直接骨折合并有爆裂骨折)。结果:眼眶爆裂骨折的直接CT征象为眶壁骨质的连续性中断、粉碎、凹陷和曲度失常。其中单眶壁骨折34 例,多眶壁骨折7例,混合型骨折23例。爆裂骨折最好发于眼眶内侧壁和眶底,占94.8% ,而混合型骨折眶外侧壁和内壁同时受累多见(占60.8% )。结论:CT诊断眼眶爆裂骨折具有重要临床价值。  相似文献   

7.
目的:探讨眼眶内、下壁骨折的CT征象、诊断及临床应用价值。方法;42例眼眶内、下壁骨折患者行CT扫描,男36例,女6例, 横轴位扫描19例,横轴位加冠状位扫描23例。结果:眼眶内侧壁骨折32例,眼眶下壁骨折18例。结论:CT能清晰显示眼眶内、下壁骨质结构及骨折征象,对骨折部位、程度的发现与确定完全而精确,是当前外伤检查中性价比最高的一种方法,具有重要的临床价值。  相似文献   

8.
影响移位髋臼骨折手术复位质量的若干因素   总被引:48,自引:12,他引:48  
目的:探讨影响移位髋臼骨手术复位质量的相关因素。方法:1990年3月-1999年7月共手术治疗移位髋臼骨折189例,年龄8-53岁,平均32岁,根据可能影响骨折复位质量的常见原因进行分组,并分析其临床疗效。结果:解剖复位率在最近和最初的4.5年手术组分别是89.7(105/117)和63.9%(46/72);在简单和复杂型骨折组分别是97.8%(89/91)和63.3%(62/98);在伤后手术时间<3间和≥3周组分别是88.6%(101/114)和66.7%(50/75);在复杂型骨折组,由双入路和前后方单一入路手术获得的解剖复位率分别是84.8%(28/75),在复杂型骨折组,由双入路和前后方单一入路手术获得的解剖复位率分别是84.4%(28/33)和51.0%(25/49);获2-10年远期随访的136例中,解剖和非解部复位组的功能优良率分别是83.6%(92/110)和38.5%(10/26)。以上各因素分组间比较,差异具有非常显著性意义(P<0.01)。结论;医师经验,骨折类型,伤后手术时间以及入路选择均有骨折复位质量和临床疗效产生显著影响,克服这些因素的负面影响将有利提高复位质量和临床疗效。  相似文献   

9.
目的:探讨眼眶陈旧性与非陈旧性爆裂骨折的CT表现及其诊断价值。方法:回顾性分析1 445例眼眶爆裂骨折的CT图像,分析骨折的部位、程度、形态及其特点。结果:单纯内侧壁骨折873例,单纯下壁骨折328例,内侧壁及下壁同时骨折244例。眼眶非陈旧性爆裂骨折CT表现为骨质明显中断,骨折线清晰,邻近副鼻窦腔积液、积血,近期复查窦腔内积液明显吸收,有皮下及眶内气肿,无眼球内陷;陈旧性爆裂骨折CT表现为骨质变形,骨折线光滑连续,复查窦腔内无明显变化,无皮下及眶内气肿,眼球不同程度内陷。结论:CT扫描能够准确显示眼眶爆裂骨折的直接及间接征象,明确骨折部位、程度,客观评价非陈旧性或陈旧性骨折,对于临床诊断、治疗、法医鉴定具有重要价值,但不能明确判断眼眶部位的具体受伤时间。  相似文献   

10.
目的:探讨多层螺旋CT(MSCT)对鼻骨骨折分型的临床价值。方法:39例鼻外伤患者经MSCT图像拆薄、二维和三维重建诊断为鼻骨骨折。然后根据直接骨折征象(D)、间接骨折征象(1)和有无伴发邻近骨骨折(C)进行分型和计数。结果:D型:无直接骨折征象3例(7.7%),线形骨折22例(56.4%),粉碎性骨折14例(35.9%);Ⅰ型:无移位12例(30.8%),偏、移10例(25.6%).塌陷15例(38.4%),既偏移又塌陷2例(5.1%);C型:无伴发邻近骨骨折14例(35.9%),伴发邻近骨骨折的25例(64.1%)。结论:通过DIC分型,MSCT能够准确描述鼻骨骨折的复杂情况。  相似文献   

11.
Direct oblique sagittal CT of orbital wall fractures   总被引:2,自引:0,他引:2  
Direct oblique sagittal CT was used to evaluate trauma to 77 orbits. Sixty-seven orbital wall fractures with intact orbital rims (36 floor, 22 medial wall, nine roof) were identified in 47 orbits. Since persistent diplopia and/or enophthalmos may warrant surgical repair of orbital floor fractures, optimal imaging should include an evaluation of extraocular muscle status, the nature and amount of displaced orbital contents, and an accurate definition of fracture margins. For orbital floor fractures, a combination of the direct oblique sagittal and direct coronal projections optimally displayed all fracture margins, the fracture's relationship to the inferior orbital rim and medial orbital wall, and the amount of displacement into the maxillary sinus. Inferior rectus muscle status with 36 floor fractures was best seen on the direct oblique sagittal projection in 30 fractures (83.3%) and was equally well seen on sagittal and coronal projections in two fractures (5.5%). Floor fractures were missed on 100% of axial, 5.5% of sagittal, and 0% of coronal projections. Since the direct oblique sagittal projection complements the direct coronal projection in evaluating orbital floor fractures, it should not be performed alone. A technical approach to the CT evaluation or orbital wall fractures is presented.  相似文献   

12.
儿童眼眶骨折的临床与CT分析(附40例报告)   总被引:1,自引:0,他引:1  
笔者分析40例儿童眼眶骨折。受伤原因以撞伤、摔伤多见,拳击伤少见。主要表现为视力下降甚至失明、复视及眼球运动障碍。CT检查常规为水平位及冠状位扫描。主要CT表现为眶壁骨质连续性中断,占71.4%眶壁移位眶腔扩大占28.6%;眶壁直接骨折最多达50.5%,爆裂骨折占33.3%,复合骨折占16.7%;各壁骨折发生率依次为内壁、下壁、外壁及上壁;此外骨折局部可伴有软组织增厚及眼外肌改变。初步认为儿童眼眶  相似文献   

13.
To explore the CT characteristics of orbital blowout fracture, we reviewed 76 cases with orbital blowout fracture and analyzed their clinical forensic characteristics. The missed diagnosis rate of cranial CT was 26.3%, and plain X-ray was 47.4%. The orbital CT examination has advantages in diagnosing orbital blowout fracture. In 42 cases fractures were simple medial orbital wall fracture, 30 cases were inferior orbital fractures. Loss of clinical signs included local haematoma, bone continuity, and displacement of bone fragments were mostly seen in CT image. Clinical signs and symptoms included local haematoma, whilst diplopia as the most common clinical symptom. Visual acuity was rarely affected after fracture. It is concluded that orbital blowout fracture may be misdiagnosed if only cranial CT and plain X-ray are used. Diagnose the orbital blowout fracture only by craniocerebral CT and head X-ray. Orbital CT should be done if the clinical signs are suggestive of orbital blowout fracture Visual acuity was affected and diplopia may be present.  相似文献   

14.
目的建立一种基于CT的肱骨髁间骨折的分型,并评价其临床应用效果。方法 44例肱骨髁间骨折应用CT分型,其中6例Ⅰ型简单骨折1,6例Ⅱ型单柱复杂骨折,19例Ⅲ型双柱复杂骨折和3例Ⅳ型合并冠状面骨折。根据骨折分型选择手术内固定方式,术后随访评价临床效果。结果Ⅰ型、Ⅱ型、Ⅲ型及Ⅳ型骨折的平均手术时间分别是78.2、91.5、120.1、137.6min。44例中有39例获得随访(随访率为88.6%),平均随访21.6个月(13~31个月),平均骨折愈合时间为14.7周(12~21周)。术后12个月时的Mayo评分平均为82.4分(100~45分)。结论基于CT的肱骨髁间骨折的分型简洁易记,区分度好,具有高度的可靠性和可重复性,能指导治疗方法的选择,有助于判断预后。  相似文献   

15.
螺旋CT扫描立体成像对眼眶爆裂骨折的诊断价值   总被引:10,自引:0,他引:10  
目的 分析眼眶爆裂骨折螺旋CT(SCT)容积扫描的表现,旨在对本病作出早期诊断。资料与方法 回顾性分析80例眼眶爆裂骨折的SCT轴位扫描图像以及多平面重建(MPR)和三维(3D)重建立体图像的CT表现。并根据CT征象将其分为3型:(1)单眶壁爆裂骨折;(2)双眶壁爆裂骨折;(3)混合型骨折(并发其他面部直接骨折的爆裂骨折)。结果 眼眶爆裂骨折的直接SCT征象为眶壁骨质连续性中断、粉碎、凹陷及曲度失常;上颌窦和筛窦内“泪滴征”是诊断眼眶下壁和内侧壁爆裂骨折的特异性间接征象。由于骨折局部往往伴有软组织增厚及眼外肌的改变,所以对早期诊断、选择治疗方法、估计预后及法医学鉴定可提供更多的信息。结论 SCT容积扫描立体成像对诊断眼眶爆裂骨折具有重要价值。  相似文献   

16.
面中部骨折的16层CT诊断   总被引:3,自引:0,他引:3  
目的:分析面中部骨折的CT影像表现,以提高临床诊断水平.材料和方法:回顾性分析65例经临床证实的面中部骨折的16层CT图像.图像后处理采用GE AW4.1,行多平面重建(MPR)、表面遮盖显示(SSD)及容积重建(VR).结果:16层CT图像显示了65例面中部骨折,其中上颌窦骨折占55.90%;眼眶骨折(不包括眶下壁)22.18%;颧骨颧弓骨折10.36%;鼻骨骨折5.54%;蝶骨翼突骨折6.02%.结论:面中部骨折的CT影像显示清晰,16层螺旋CT在诊断中有重要作用.  相似文献   

17.
The purpose of this study was to assess the diagnostic value of orbital line changes on plain radiographs in detecting blow-out fracture. 92 cases of surgically confirmed blow-out fracture were retrospectively analysed in regard to plain radiographs and CT. Anterior and posterior lamina papyracea lines (ALPL and PLPL, respectively) of the orbital medial wall as well as the posteromedial floor line (PMFL) were assessed on orbital posteroanterior projections. The inferomedial orbital line (IMOL) and the inferior wall line were assessed on Waters projections. Orbital lines on plain radiographs were compared with CT findings. Of 53 cases of lamina papyracea fracture, 47 cases showed orbital line changes on plain radiographs (sensitivity 88.7%). Changes of PLPL (41/47), IMOL (29/47), ALPL (4/47) and PMFL (2/47) were demonstrated as depression, loss, discontinuity and irregularity. In four cases showing normal radiographs, the fractures measured less than 9 mm in size on CT. All 25 cases with orbital floor fracture accompanying medial wall fracture demonstrated orbital line changes of PMFL (16/25), PLPL (14/25), ALPL (3/25) and IMOL (2/25) (sensitivity 100%). 12 of 14 cases with orbital floor fracture demonstrated changes of inferior wall line (7/12) and PMFL (6/12) (sensitivity 85.7%). Two cases demonstrated asymmetric focal soft tissue density without orbital line changes. Orbital line changes on plain radiographs corresponded well with CT findings, confirming the usefulness of plain radiographs in detecting blow-out fracture.  相似文献   

18.
目的评价64层螺旋CT三维重建在复杂性颌面部骨折诊断与治疗中的临床意义。方法50例临床疑有复杂性颌面骨折患者(28例煤矿工外伤和22例交通事故外伤)于外伤后2-23(平均121h内均经64层螺旋cT平扫和三维重建(SSO)成像。依据手术所见,对比性分析了CT平扫与三维重建像对骨折部位、伴发骨折及骨折线的显示能力。结果50例疑有颌面骨折患者中,上颌骨骨折伴颧骨、眶骨骨折26例,上颌骨骨折伴颧骨、眶骨、鼻骨、额骨骨折14例,颧骨、眶骨、鼻骨骨折6例,颧骨、眶骨骨折4例。三维重建(SSD)像清晰显示了部分患者中cT平扫未发现的横向、斜向骨折线。结论cT三维重建成像能立体地、直观地显示复杂性颌面骨折的部位及伴发骨折,尤其在显示隐匿性骨折线方面明显优于CT平扫,因此,它能为制定精细的手术方案提供可靠依据。  相似文献   

19.
OBJECTIVE: To compare the clinical effectiveness of computed tomography (CT) with conventional radiography in midfacial fractures. METHODS: The conventional radiographs (CM) and CT scans of 40 consecutive patients with complex midfacial fractures were assessed independently by two examiners. The number and site of fractures of the orbit, zygoma and maxilla were compared by the Wilcoxon Matched Pairs Signed Rank test. The best method for classification of the fracture was determined. RESULTS: Coronal CT (CCT) proved superior in the diagnosis of orbital fractures (P<0.001). There was no significant difference between any of the imaging methods for fractures of the zygoma. Axial CT (ACT) was the most effective method in imaging of maxillary fractures (ACT-CM; P<0.001, ACT-CCT; P<0.01). CCT was the most useful in classification of orbital and maxillary fracture. CONCLUSION: CCT is superior to CM for the assessment of complex midface fractures  相似文献   

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