本文關(guān)鍵詞：肝臟及肝內(nèi)血管系統(tǒng)CT掃描三維重建的解剖學(xué)研究　出處：《青島大學(xué)》2012年碩士論文　論文類型：學(xué)位論文

  更多相關(guān)文章： 多排螺旋CT 肝臟 Amira 三維重建

【摘要】：目的以肝臟多排螺旋CT掃描斷層圖像數(shù)據(jù)為基礎(chǔ),探討利用Amira(法國(guó)TGS公司出品的一款具有交互式三維可視化及建模功能的三維重建軟件)進(jìn)行實(shí)時(shí)個(gè)性化的肝臟(包括其內(nèi)部血管系統(tǒng))三維重建,并將所得三維圖像與實(shí)體肝臟解剖結(jié)構(gòu)對(duì)比,分析多排螺旋CT掃描三維重建的優(yōu)勢(shì)及臨床意義。 方法選擇體檢健康者(男性,30歲,身高1.75米,體重：65公斤),以多排螺旋CT進(jìn)行上腹部的平掃和增強(qiáng)掃描,以所得數(shù)據(jù)為基礎(chǔ)進(jìn)行三維重建。 流程主要分為四步：(1)對(duì)獲取的斷層圖像進(jìn)行預(yù)處理；(2)將肝臟圖像從斷層圖像中單獨(dú)分離出來(lái)；(3)在相鄰兩個(gè)斷層圖像之間進(jìn)行處理,以使空間三個(gè)方向具有相同(或相差較小)的數(shù)據(jù)；(4)將重建后的三維圖像在電腦顯示器上進(jìn)行立體顯示,對(duì)其進(jìn)行幾何變換的運(yùn)算,完成斷層的重建。根據(jù)重建的三維圖像分析肝臟及其內(nèi)部血管系統(tǒng)的解剖特點(diǎn),并與實(shí)體肝臟解剖結(jié)構(gòu)對(duì)比分析。 結(jié)果我們得到的肝臟重建模型解剖結(jié)構(gòu)清晰,形態(tài)逼真,立體感強(qiáng)。其中門靜脈系統(tǒng),清楚顯示脾靜脈和腸系膜上靜脈匯合成門靜脈主干以及入肝后的各級(jí)分支,并可顯示各血管的立體走向。通過(guò)對(duì)三維圖像進(jìn)行放大、縮小和旋轉(zhuǎn)可全方位觀察各解剖結(jié)構(gòu)。通過(guò)調(diào)節(jié)透明度和色差可單獨(dú)顯示肝臟及其管道結(jié)構(gòu)各部分。 結(jié)論以多排螺旋CT掃描斷層圖像數(shù)據(jù)為基礎(chǔ),利用Amira三維重建軟件可進(jìn)行實(shí)時(shí)個(gè)性化的肝臟(包括其內(nèi)部血管系統(tǒng))三維重建；重建后的肝模型具有肝臟、肝動(dòng)脈、肝靜脈和門靜脈,形態(tài)逼真,立體感強(qiáng)；重建的肝臟三維圖像能真實(shí)反映肝臟的實(shí)際體積和肝臟的各種解剖標(biāo)志,如肝動(dòng)、靜脈和門靜脈的分布、走行以及毗鄰關(guān)系等；與傳統(tǒng)影像相比,形態(tài)更加逼真,立體感更強(qiáng)。相比傳統(tǒng)的解剖圖譜更加形象、生動(dòng)。對(duì)推進(jìn)解剖學(xué)及肝臟外科手術(shù)學(xué)的發(fā)展有重要意義。
[Abstract]:Objective to study the basis of liver multi-slice spiral CT (MSCT) images. To explore the use of Amira (a 3D reconstruction software with interactive 3D visualization and modeling) produced by TGS of France, to carry out real-time personalized liver (including its internal vascular system). 3D reconstruction. The advantages and clinical significance of 3D reconstruction of multi-slice spiral CT scanning were analyzed by comparing the 3D images with the anatomical structure of solid liver. Methods the healthy subjects (male, 30 years old, 1.75 meters tall, weight of 65 kg) were examined by multi-slice spiral CT scan of epigastrium. Three-dimensional reconstruction is carried out based on the obtained data. The flow is divided into four steps: 1) preprocessing the acquired image; 2) separate the liver image from the tomographic image; (3) processing between adjacent two tomographic images so that the three directions of the space have the same (or smaller difference) data; Finally, the reconstructed 3D image is displayed on the computer display, and the geometric transformation is performed. According to the reconstructed 3D images, the anatomical characteristics of liver and its internal vascular system were analyzed, and the anatomical structure of the liver was compared with that of the solid liver. Results the anatomical structure of the liver reconstruction model was clear, the morphology was lifelike, and the three-dimensional feeling was strong. Among them, the portal vein system. The splenic vein and superior mesenteric vein were clearly shown to synthesize the portal vein trunk and the branches of the portal vein at all levels after entering the liver, and the stereoscopic direction of the blood vessels could be displayed. The three-dimensional image was amplified. The anatomical structure can be observed in all directions by reducing and rotating. By adjusting transparency and chromatic aberration, the liver and its pipework can be displayed separately. Conclusion based on the image data of multi-slice spiral CT scanning, the three-dimensional reconstruction of liver (including its internal vascular system) can be carried out by using Amira 3D reconstruction software. The reconstructed liver model had liver, hepatic artery, hepatic vein and portal vein. The reconstructed three-dimensional images of the liver can reflect the actual volume of the liver and various anatomical markers of the liver, such as the distribution of hepatic artery, vein and portal vein, walking and adjoining relationship, etc. Compared with the traditional image, the shape is more realistic, the stereoscope is stronger, and the anatomic map is more vivid and vivid than the traditional image. It is of great significance to promote the development of anatomy and liver surgery.
【學(xué)位授予單位】：青島大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2012
【分類號(hào)】：R322.47

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