体积渲染 DICOMDIR CT 扫描
我从医院拿到了一张头部 CD 扫描 CD。
我对医学成像完全陌生。我想做的是执行 CT 扫描的体积渲染。
它采用 DICOMDIR 格式。我将如何以及从哪里开始？
通过摆弄各种工具，我感觉我需要将每个系列提取为 DICOM 格式。这是正确的吗？如果是，我该怎么做？
I got a CD from the hospital that is a head CD scan.
I am completely new to medical imaging. What I would like to do perform a volume rendering of the CT scan.
It is in DICOMDIR format. How and where would I start?
From messing about with various tools I get the feeling that I need to extract each series into DICOM format. Is this correct and if so how would I do it?
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除非您获得体积数据，否则您的渲染充其量也将令人失望。许多机构仍然以单独的“步进切片”的形式获取头部 CT，而不是批量获取，因此在这里您将获得明显的“步进”伪影。
即使它是通过体数据获取的，除非他们将所有数据传输到您的 CD，否则您仍然只能处理经过处理的“平板”或“切片”图像。
进行体渲染的最佳方法是实际拥有体数据。 “切片图像”数据已简化并删除了大部分信息。您刚刚获得 256 x 256 x（8 或 16 位灰度）数组数据中的 20 或 30 个图像。
Unless you were given the volume data your rendering will be disappointing at best. Many institutions still acquire head CT's in separate "step-slices", and not as volumes so here you will have significant 'stepping' artifact.
Even if it was acquired with volume data, unless they transferred all the data to your CD, you will still be stuck with only the processed 'slab' or 'slice' images.
The best way to do a volume rendering is to actually have the volume data. "Slice image" data has most of the information dumbed down and removed. You are just getting 20 or 30 images in 256 x 256 x (8 or 16 bit greyscale) array data.
如果您有 Mac，请尝试 OsiriX - 它是免费、开源的，可以满足您所需的一切以及更多功能。如果您不这样做，并且这是一次性的事情，您可以随时注册商业级 DICOM 查看器的免费演示。医学图像查看软件非常昂贵，如果没有演示就不可能出售。只要声称自己为临床医生工作，您就可以毫无问题地获得可用的软件。
If you have a mac try OsiriX - it's free, open source and will do everything you need and more. If you don't, and this is a one time thing, you could always sign up for a free demo of a commercial grade DICOM viewer. Medical image viewing software is insanely expensive and would be impossible to sell without demos. Just claim to be working for a clinician and you'll have no problem getting working software.
我相信 ImageJ 将为您打开 DICOMDIR 中的任何文件。我不完全确定它可以从 DICOMDIR 打开整个研究，但我相当确定它会处理您需要打开的任何单个文件。它还应该提供将图像导出为各种其他格式的选项。如果您需要更多信息，请随时发表评论。
I believe ImageJ will open any of the files in the DICOMDIR for you. I'm not entirely sure it can open the entire study from the DICOMDIR, but I'm fairly certain it will handle any individual files you need to open. It should also offer the option to export the images to various other formats. If you need more info, feel free to post a comment.
您还可以尝试 MevisLab (http://www.mevislab.de/)，它是免费的，但使用起来有点复杂，可能需要两个步骤才能渲染 dicom 图像。
最有可能的是，您必须使用它们提供的小部件之一来转换图像，然后加载转换后的图像并渲染它。
You can also try MevisLab (http://www.mevislab.de/) it is free but a bit more complex to use and maybe it requires two steps to get the rendering of your dicom images.
Most probably you have to use one of the widgets they provide to convert the image and then to load the converted image and render it.
I have done with ImageJ but ImageJ not support compress dicom files at that time you have create your own logic to read compress dicom file.
Fiji and VolumeJ are also Good Option for Volume Rendering
I have done with ImageJ but ImageJ not support compress dicom files at that time you have create your own logic to read compress dicom file.
Fiji and VolumeJ are also Good Option for Volume Rendering
尝试 Real3d VolViCon，这是一款用于重建计算机断层扫描 (CT)、磁共振 (MR)、超声波和 X 射线图像。它提供将 3D 表面或体积导出为三角形网格文件的功能，以便使用 3D 打印技术创建物理模型。它还提供高质量的可视化、线性和角度测量工具以及各种类型的标记。它采用单个原始体积文件或一系列 2D（即 DICOM）文件并重建 3D 体积（体素）和网格（表面）模型。
Try Real3d VolViCon which is an advanced application for reconstruction of computed tomography (CT), magnetic resonance (MR), ultrasound, and x-rays images. It gives features for exporting 3D surfaces or volume as triangular mesh files for creating physical models using 3D printing technologies. It also provides high-quality visualization, linear and angular measurement tools, and various type of markups. It takes a single raw volume file or a sequence of 2D (i.e., DICOM) files and reconstructs 3D volume (voxels) and mesh (surfaces) models.