OsiriX User Manual

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1. OsiriX 简介：

OsiriX软件是一款世界著名的Dicom Viewer软件。

OsiriX MD, the medical edition of OsiriX, is certified and validate for clinical use in medicine(FDA, CE, ANVISA). With ultrafast performance and an intutive interactive user interface, it is the most widely used DICOM viewer in the world. It is the result of more than 10 years of research and development in digital imaging. It is fully supports the DICOM standard for an easy integration in your workflow environment and an open platform for development of processing tools. It offers advanced post-processing techniques in 2D and 3D, exclusive innovative techniques for 3D & 4D navigation, including PET-CT and SPECT-CT fusion, and a complete integration with any PACS server. It can import and display any medical images (DICOM) from CD, DVD, USB stick, website, … OsiriX MD supports 64-bit computing and multithreading for the best performances on the most modern computers.

OsiriX MD is a stand-alone software, easy to install, and doesn’t require any specific environment to work. Install it in less than 5 minutes, and you have a fully working medical imaging workstation, ready to import images from a PACS or directly from a CD or USB stick.

2. 3D Curved MPR 简介：

3. OsiriX User Manual - 3D Curved MPR:

以下是从OsiriX的官方网站上下载的关于3D曲线的曲面重建章节的使用说明。以此可以进一步了解曲面重建在OsiriX软件中的使用方法，为后期自主开发曲面重建算法可以提供一些指导。

The 3D Curved MPR Viewer
This Chapter describes how to visualize and reformat a 3D dataset in a Curved MPR plane: Curved Planar Reformation (CPR). The 3D Curved MPR Viewer is a window opened from the 2D Viewer.
这章介绍如何在一个曲线MPR平面中，重新构建一个3D数据集并将其可视化，也即曲面重建。3D曲面重建的窗口是从2D的窗口中打开来的。

This viewer produces a Curved MPR rendered image from a 3D dataset. The Curved MPR plane can be defined in any direction and angle on the original dataset. This plane is defined as a 3D Bezier path. The Curved MPR plane is rendered as a straightened or stretched view.
这个窗口从一个3D数据集中生成一个曲面重建渲染图像。曲面重建的平面可以在原始数据集的任何方向和角度上进行定义。这个平面被定义为一个3D贝塞尔路径。这个曲面重建的平面可以按照拉直和弯曲两种形式进行渲染生成。

Four views are displayed in this window. The first three views show an orthogonal MPR plane in relation to the other views. It allows the user to move in a precise manner and to place and edit the 3D Bezier path. The lower right view displays the 3D Bezier path as a straightened or stretched curved MPR image. The user can rotate around this 3D Bezier path and display three perpendicular views along this path (views A, B and C).
在这个窗口中会显示4个视图。前面的3个视图显示了与其他两个平面正交的MPR平面。它可以使用户精确地移动并且放置和编辑3D贝塞尔路径。右下角的视图以拉直或弯曲的曲面重建图像显示3D贝塞尔路径。用户可以绕着这条3D贝塞尔曲线进行旋转，和显示与沿着这条路径相互垂直的三个视图（视图A, B和C）。

The Curved MPR views and the corresponding perpendicular views can be exported as new DICOM images in the database.
曲面重建的视图和与其相垂直的视图可以作为新的DICOM序列图像输出到数据库中。

12.1 The Anatomy of the 3D Curved MPR Viewer
The window of the 3D Curved MPR Viewer is divided into 3 parts:

• The toolbar
• The three MRP Views
• The Curved MPR view rendered as a straightened or stretched view, including 3 perpendicular views (views A, B and C).

The toolbar contains several buttons allowing the user to access the most useful functions available. As with any other toolbar, it can be customized.
The MPR views are the place where the DICOM images are reformatted as orthogonal views and where the 3D Bezier path is defined by the user.
The Curved MPR view is the place where the 3D Bezier path is rendered as a curved plane image. The three views on the right side of the Curved MPR view show three images, corresponding to three perpendicular views along the 3D Bezier path. These three perpendicular views are strictly perpendicular to the Bezier path, but are not necessary parallel to each other, if the 3D Bezier pah is not a straight line.
You can double-click in any of these views to display it as fullscreen. Double-click again to reduce it to its normal size. You can also click and move the separators between threse views to adapt the views size. And finally you can change the orientation of the Curved MPR view by using the Views toolbar item: horizontally or vertically rendered.

……

12.2 3D MPR Viewing functions
Curved Multiplanar reformatting (Curved MPR) or Curved Planar Reformation (CPR) is a technique used in two-dimensional tomographic imaging (computed tomography and magnetic resonance) to create a new plane along a path from a series of original sections. For a good image quality, a small slice interval between the original images is needed, otherwise there will be geometric distortions along the Z axis, such as the stair-step. Therefore, the slice interval (Z axis) of the original series should not be larger than two times the pixel resolution (X and Y axis). This information is displayed in the Calibrate Resolution item of the 2D Viewer menu.

The Curved MPR rendering technique can help to better understand the anatomy of complex structures, such as vessels. It allows to unroll curved structures (e.g., blood vessels, bronchi and colon). The goal of CPR visualization is to make a tubular structure visible in its entire length within one single image.

曲面重建技术可以帮助医生更好地去理解复杂结构的解剖结构，如管道。它可以展开弯曲的结构（如血管，支气管和结肠）。曲面重建可视化的目标是可以使管状结构的整个长度显示在单独的一张图像上。

参考链接:

1. OsiriX官方网站：
   http://www.osirix-viewer.com/
2. OsiriX User Manual - 3D Curved MPR.
   http://download.csdn.net/detail/inter_peng/9802152
3. OsiriX , PACS Screenshots.
   http://www.sigmalogic.com.au/pacs-screenshots.html