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Related Concept Videos

Quality Assurance01:19

Quality Assurance

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Quality assurance is the overarching term used to describe the activities employed to ensure the proper performance of a system. These activities can be classified into three categories: quality control, quality assessment, and internal corrective measures. Typically, these activities work cyclically: quality control is performed before and during the analysis, while quality assessment occurs during and after the investigation. Internal corrective measures are implemented based on the findings...
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In anatomy, several standard anatomical positions are used as references for describing the position and orientation of different body parts. These positions help provide a common frame of reference when discussing anatomical structures. The anatomical position is the standard reference point for describing the body's position and orientation. In this position:
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Knowledge of anatomy is essential to understand human biology and medicine. Anatomists and health care professionals use standard terminology to describe the human body with more precision and no ambiguity. Anatomical terms have mostly Greek and Latin-derived roots. Because these languages are rarely used in conversation, the meaning of words remains the same. Each term is made up of a root in between the prefixes and suffixes. The root of a term often refers to an organ, tissue, or condition,...
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Anatomical Movements00:51

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Anatomical movements refer to the various actions or motions that can be performed by the body's joints and muscles. These movements are described using specific terms to provide a standardized way of discussing and understanding the range of motion at different joints.
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Cerebrum: Anatomical Overview II01:11

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Each cerebral hemisphere can be divided into three main regions. The outermost region, the cerebral cortex, is a thin layer (2 to 4 millimeters thick) made up of gray matter, consisting of neuron cell bodies, dendrites, glial cells, and blood vessels. The middle region, or white matter, is primarily composed of myelinated nerve fibers organized into three types of large tracts: association fibers, commissures, and projection fibers. Association fibers connect different areas within the same...
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Diencephalon: Anatomical Regions01:30

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The diencephalon, etymologically translated as 'through brain,' plays an integral role as the conduit between the cerebrum and the vast extent of the nervous system. However, the olfactory system is an exception, as it interfaces directly with the cerebrum. The diencephalon, deeply ensconced beneath the cerebrum, primarily consists of three paired structures — the thalamus, hypothalamus, and epithelamus. It also includes accessory structures such as the subthalamus, which houses the...
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Anatomic modeling using 3D printing: quality assurance and optimization.

Shuai Leng1, Kiaran McGee1, Jonathan Morris1

  • 11Department of Radiology, 200 First Street SW, Mayo Clinic, Rochester, 55901 MN USA.

3D Printing in Medicine
|May 22, 2018
PubMed
Summary
This summary is machine-generated.

A quality assurance (QA) program framework was developed for medical 3D printing, ensuring accuracy from image acquisition to final model. This systematic approach validates 3D printed models for critical medical applications.

Keywords:
3D printingComputed tomography (CT)ImagingPhantomQuality assuranceSegmentation

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Area of Science:

  • Medical 3D Printing
  • Quality Assurance
  • Biomedical Engineering

Background:

  • Medical 3D printing requires robust quality assurance (QA) to ensure patient safety and model accuracy.
  • Existing QA methods may not comprehensively cover the entire 3D printing workflow.
  • An interdisciplinary team is crucial for developing effective QA programs in this field.

Purpose of the Study:

  • To establish a comprehensive framework for a quality assurance (QA) program tailored for medical 3D printing applications.
  • To systematically assess and ensure the accuracy and precision of each stage in the 3D printing process.
  • To validate the fidelity of 3D printed medical models through rigorous testing.

Main Methods:

  • Developed a systematic QA approach covering image acquisition, data processing, and the 3D printing/cleaning stages.
  • Utilized qualitative inspection and quantitative measurements for model validation.
  • Implemented a phantom-based QA process with CT scanning for end-to-end error assessment.

Main Results:

  • Phantom-based QA demonstrated end-to-end error assessment with measured differences ranging from -0.32 mm to 0.13 mm.
  • Patient-specific models showed a mean distance of -0.12 mm (SD 0.17 mm) between original data and scanned prints.
  • The developed QA process effectively quantifies deviations in 3D printed medical models.

Conclusions:

  • A comprehensive QA process, from initial imaging to the final printed model, has been successfully developed.
  • This QA program is essential for guaranteeing the necessary accuracy of 3D printed models in medical settings.
  • Implementing such a program ensures the reliability and clinical utility of 3D printed medical devices.