Post-Processing & Data Management
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| show | overlapping reconstruction
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| show | image reformation
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| show | manual MPR
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| Refers to the feature that allows the operator to manually change the image plane while the software continually updates the image. This feature permits the operator to use trial and error to obtain the ideal image plane. Also called interactive MPR. | show 🗑
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| Scanner protocols are programmed so that MPRs are automatically generated by the scanner software | show 🗑
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| show | workstation-created MPR
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| 3D reformation method in which the voxels located on the edge of a structure are used to show the outline or outside shell of the structure; it includes only information from the surface of an object. Also known as shaded-surface display (SSD) | show 🗑
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| A predetermined CT value limit set by the operator in some types of 3D reformation techniques. The software will include or exclude the voxel depending on whether its CT number is above or below the threshold | show 🗑
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| show | projection displays
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| show | maximum-intensity projection
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| show | minimum-intensity projection
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| A 3D imaging technique that creates a semitransparent representation of the imaged structure. A advantage of this is that all voxels contribute to the image, allowing the image to display multiple tissues and show their relationship to one another | show 🗑
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| Each voxel is assigned an ____ based on its Hounsfield units. This determines the degree to which it will contribute, along with other voxels along the same line, to the final image | show 🗑
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| show | endoluminal imaging
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| show | virtual bronchoscopy
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| A form of volume rendering designed to reveal the inside of the colon. The technique is also called endoluminal imaging | show 🗑
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| show | region-of-interest editing
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| The process of selectively removing or isolating information from the data set by the manual process in which the user identifies and selects data to be saved or removed | show 🗑
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| show | fully automated segmentation
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| Combines many of the benefits of manual and automatic segmentation techniques to selectively remove or isolate information from the data set | show 🗑
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| Errors in the reformatted image that are introduced when important vessels or other structures are inadvertently edited out of the data set | show 🗑
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| When smooth objects, such as the aorta, appear on the reformatted image to have edges that resemble a flight of stairs. The result when wide slices are used as source images. | show 🗑
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| The collection, classification, storage, retrieval, and dissemination of recorded information | show 🗑
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| How information about medical images is exchanged within the radiology departments and through the medical enterprise | show 🗑
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| Information systems that focus on administrative issues, such as patient demographic data, financial data, and patient locations within the hospital | show 🗑
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| Information systems that keep track of clinical data | show 🗑
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| System that electronically transmits clinician orders to radiology and other departments | show 🗑
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| Generic term for a digital patient record | show 🗑
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| Electronic health records are often composed of this from a variety of sources, including radiology. | show 🗑
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| show | radiology information system (RIS)
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| One of the two key elements that form the radiology department's information infrastructure. This encompasses a broad range of technologies necessary for storage, retrieval, distribution, and display of images | show 🗑
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| show | information technology (IT)
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| Linked computers that are geographically close together | show 🗑
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| Computers that are farther apart and must be connected by telephone lines, cables, or radio waves | show 🗑
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| Refers to networks that are linked by a physical connection | show 🗑
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| show | wireless
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| show | topology
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| Connections used to attach computers to the network, consisting of cables that are made up of twisted pairs of copper wire | show 🗑
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| show | client-server network
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| Server computers that are integral to the functioning of the PACS | show 🗑
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| show | bandwidth
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| Binary digits | show 🗑
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| Unit of information storage composed of 8 bits of data | show 🗑
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| show | lossy compression
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| show | lossless compression
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| Common set of rules and signals that computers on the network use to communicate | show 🗑
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| show | redundancy
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| show | DICOM
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| show | Health Level Seven
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| Image acquisition from the CT scanner to the PACS in which CT data are transferred directly, which allows full spatial resolution and image manipulation capabilities (such as adjusting window width and level) | show 🗑
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| show | frame grabbing
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| show | CRT
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| Used for monitors in radiology departments | show 🗑
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| Brightness | show 🗑
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| show | online archiving
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| Storage systems in which data are readily, although not immediately, available. Examples include an optical jukebox or tape library | show 🗑
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| Storage system in which data are kept in a less accessible location, requiring manual intervention to use | show 🗑
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| show | redundant array of inexpensive disks (RAID)
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| show | digital versatile discs
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| show | robotic drives
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| show | magnetic tape
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| Distribution channels that encompass off-site outpatient clinics or allow on-call radiologists to review studies from home | show 🗑
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| show | virtual private networks (VPN)
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| show | peer-to-peer (P2P) network
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