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Quality Control

Quality Control

Quality control is one of the three cyclical quality assurance activities that help keep a system under statistical control. Typical quality control activities include creating quality control charts, conducting proficiency testing, and documenting and archiving results.
Quality control helps track data, visualize trends, and identify variations, making it easier to detect deviations that may affect the accuracy of an analysis. One way to do this is by generating a quality control chart, which...

Quality Assurance

Quality Assurance

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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Conducting Respiratory Oscillometry in an Outpatient Setting

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Published on: April 8, 2022

Periodic Quality Control Methods for SPECT-CT.

Shuyi Zhang¹, Ying Han², Guolin Wang¹

¹Department of Nuclear Medicine, The First Affiliated Hospital, Zhejiang University School of Medicine.

Journal of Visualized Experiments : Jove

|October 20, 2025

Summary

This summary is machine-generated.

Regular quality control of gamma cameras, single photon emission computed tomography (SPECT), and SPECT/CT systems is crucial. Implementing standardized tests ensures reliable medical imaging and accurate diagnoses by detecting issues early.

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Area of Science:

Medical Imaging
Nuclear Medicine
Diagnostic Radiology

Background:

Gamma cameras, SPECT, and SPECT/CT are vital for medical diagnosis.
Equipment malfunctions can compromise image quality and diagnostic accuracy.
Standardized quality control (QC) is recommended by IAEA and NEMA for reliable performance.

Purpose of the Study:

To outline essential quality control methods for SPECT-CT instruments.
To emphasize the importance of comprehensive equipment performance assessment.
To ensure the stability, accuracy, and reliability of medical imaging devices.

Main Methods:

Implementing standardized, periodic quality control procedures.
Evaluating both planar and tomographic imaging modes.
Conducting specific tests including background, uniformity, gain adjustments, center of rotation, CT quality, and image fusion.

Main Results:

Early detection of equipment issues is facilitated by QC.
Consistent image quality and diagnostic reliability are maintained.
Comprehensive assessment ensures stable and accurate operation for clinical support.

Conclusions:

Quality control is indispensable for high-quality medical images and reliable diagnostics.
Adherence to IAEA recommendations for SPECT/CT QC is vital.
Proactive monitoring guarantees the integrity of diagnostic outcomes.