3dicom本地dicom存档

3Dicom Lite –使用本地DICOM存档/数据库

A dicom viewer as the name suggests are designed for viewing the DICOM (Digital Imaging and COmmunication in Medicine) file format. These scans are usually stored in Picture Archiving and Communications Systems (PACS) – a pacs server. PACS provide convenient access for data and dicom content such as CT images, MRIs, ultrasounds or Xrays. The specific pacs server is also linked to the dicom database which then can be viewed with the specific dicom viewer; 3Dicom. The medical imaging data that is stored in the pacs database typically follows this specific hierarchy.

Patient (patient id) – This is the highest level as all studies and series are linked to the unique patient ID (unless anonymised). A Patient is the person who is receiving, or has received, a medical imaging procedure – typically an MRI or CT Scan. For example, when analysing public dicom data, it is common for the dicom file to have patient anonymization so patient id may often be hidden or displayed as ‘anonymous’. Multiple studies and series can be attributed to a single patient and to help find a particular patient, most DICOM viewers allow for the ability to search by patient name, date of birth and other identifying attributes to narrow the search. In 3Dicom Lite, users are limited to 3 Patients so this functionality is available but shouldn’t be required.

学习 – Studies relate to a particular imaging procedure, allocated by date and imaging modality (such as CT, MRI, PET, X-Ray, Ultrasound etc.). For example, if a patient had a CT scan and MRI scan on the same day, these would be stored as two separate studies and data sets. Studies may also store information about the radiology company and who performed the medical imaging procedure or the imaging equipment used .

系列 – Each study, no matter what date or imaging modality, contains at least 1 Series of images. Most Studies contain a number of series as the positioning of the patient may change, a few different scans may have been taken during the imaging session or it may contain ‘composite’ images generated from the plane of acquisition. Series may also contain the number of image files or the size of the image data.

Instance/ImageAt the most basic level, each ‘slice’ of a CT/MRI/PET scan is stored as a separate DICOM image, typically in .DCM format and is normally 512×512 pixels in dimensions. Relevant information such as the space between pixels (pixel spacing) and thickness of the slice (slice thickness) are captured as meta-data for each and every image.

3Dicom 为所有用户提供本地 DICOM 存档,可作为您自己设备上的迷你 PAC 系统。扫描数据本身存储在您首次加载的任何目标文件夹中,并且相关的患者、研究和系列数据将被安全处理、散列并缓存在您设备上的本地数据库中。这使用户能够快速重新打开 3Dicom 程序并浏览/加载扫描,而不是每次都在设备上手动浏览扫描。

For more unique file or image types, such as NiFTi and JPEG2000 etc. which don’t always load easily or aren’t compatible with the Local DICOM Archive / Database, users have the option to “Open Other” rather than “Import DICOM” which provides more support for niche files.

Additionally, for those who use Removable Media such as CDs and USBs, the Local DICOM Archive / Database does not work as the patient metadata might be securely stored however the DICOM files themselves may be removed from the device at the end of the session. To account for this, 3Dicom has the option to “Load from CB/USB” which ensures that DICOM metadata is not stored in the Local DICOM Archive whilst in the desktop version. Furthermore, it also counters any loss of clinical data or medical data when using removable media.

有关完整的概要并了解如何在桌面版上加载 DICOM 和 NII 文件,请观看下面的视频:

请注意,此博客仅用于教育和营销目的,并不构成医学建议。 3Dicom当前已注册为TGA 1类可视化设备,未经批准用于诊断。

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