本文選題：多層螺旋CT + 多平面重建�。� 參考：《吉林大學(xué)》2009年碩士論文

【摘要】： 眶上裂區(qū)病變臨床上并不少見,病因復(fù)雜、臨床漏診率較高,早期診斷關(guān)乎治療效果及預(yù)后,一直是眼科及外科領(lǐng)域研究的熱點(diǎn)和難題。由于眶上裂解剖位置特殊、局部結(jié)構(gòu)復(fù)雜,因此明確病因尤為重要。隨著現(xiàn)代醫(yī)學(xué)影像診斷技術(shù)的不斷進(jìn)步,臨床常需要借助X光片以明確眶上裂有無狹窄、硬化及破壞,或進(jìn)一步行B超、彩色多普勒超聲檢查,甚至是眼眶CT、MRI以排除有無眶內(nèi)占位性病變侵及眶上裂。此外,患者還需行頭顱CT、MRI,甚至是腦血管造影檢查以除外顱內(nèi)病變引起的眶上裂處神經(jīng)血管組織功能障礙。由于常規(guī)CT窗寬窄,部分容積效應(yīng)大,顯示的眶上裂較正常小。此外,構(gòu)成眶上裂的各骨壁較薄,主要以骨皮質(zhì)為主,缺乏骨髓組織,而MRI又不能直接顯示眶上裂骨性構(gòu)成,因此本課題開拓思路,應(yīng)用多層螺旋CT(multi-slice computed tomography,MSCT)多平面重建(multi-planarreformation,MPR)技術(shù)對眶上裂區(qū)進(jìn)行矢狀面、冠狀面和(或)斜冠狀面重建。本文結(jié)果顯示:使用多層螺旋CT多平面重建技術(shù)已成為眶上裂區(qū)常規(guī)軸位CT掃描最有益的補(bǔ)充。通過使用多層螺旋CT獲得眶上裂冠狀面、矢狀面和(或)斜冠狀面多平面重建圖像及其相關(guān)數(shù)據(jù),可以更好更清楚地了解眶上裂區(qū)骨性結(jié)構(gòu)的構(gòu)成和形態(tài),了解其與全身各系統(tǒng)特別是顱腦與副鼻竇的密切關(guān)系,對眶上裂區(qū)骨折和占位性病變的位置、范圍和程度做出明確診斷,為臨床早期發(fā)現(xiàn)和治療眶上裂區(qū)病變計(jì)劃的制定提供可靠依據(jù)。
[Abstract]:The lesions of supraorbital fissure are not uncommon in clinic, the etiology is complex, the rate of clinical missed diagnosis is high. Early diagnosis is related to the therapeutic effect and prognosis, and has been a hot and difficult problem in the field of ophthalmology and surgery.Because of the special anatomical location and complicated local structure of supraorbital fissure, it is very important to know the etiology.With the development of modern medical imaging diagnostic technology, X-ray is often needed in clinic to determine whether the supraorbital fissure is narrow, sclerotic or damaged, or to be further examined by B-ultrasound and color Doppler ultrasound.Even orbital CT MRI was used to exclude the involvement of orbital space occupying lesions in supraorbital fissure.In addition, patients also need to perform head CT MRI, or even cerebral angiography to exclude intracranial lesions caused by the superior orbital fissure neurovascular dysfunction.Because of the width of CT window and partial volume effect, the superior orbital fissure was smaller than normal.In addition, the bone walls of the supraorbital fissure are thin, mainly cortical, and lack of bone marrow tissue, and MRI can not directly show the bony formation of the supraorbital fissure.The sagittal, coronal and / or oblique coronal reconstruction of the supraorbital fissure region was performed by multi-planar reconstruction with multislice spiral CT(multi-slice computed tomography-MSCT.The results show that multislice spiral CT multiplanar reconstruction technique has become the most useful supplement to conventional axial CT scan in the supraorbital fissure region.Multiplanar reconstruction images of supraorbital fissure coronal plane, sagittal plane and / or oblique coronal plane were obtained by using multi-slice spiral CT.To understand its close relationship with the system of the whole body, especially the craniocerebral and paranasal sinuses, and to make a definite diagnosis of the location, scope and extent of the fracture of the supraorbital fissure area and the occupying lesions.To provide reliable evidence for early detection and treatment of supraorbital fissure lesions.
【學(xué)位授予單位】：吉林大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2009
【分類號】：R322

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