Medical Imaging Technologies
Expert-defined terms from the Certificate in AI‑Enabled Medical Equipment Maintenance course at HealthCareStudies (An LSPM brand). Free to read, free to share, paired with a professional course.
Absorption, in the context of medical imaging , refers to the process by w… #
This concept is crucial in understanding how different tissues absorb x-rays at varying rates, which ultimately affects the quality of the image produced. Related terms include attenuation and scattering.
Acceleration, in medical imaging , refers to the rate of change of velocit… #
This concept is essential in understanding the physical principles behind MRI and other imaging modalities. For instance, acceleration is used to describe the movement of hydrogen nuclei in MRI, which generates the signals used to create images.
Acquisition, in the context of medical imaging , refers to the process of… #
This concept is critical in understanding how image data is obtained and reconstructed to produce diagnostic images. Related terms include reconstruction and processing.
Algorithm, in medical imaging , refers to a set of instructions used to an… #
This concept is vital in understanding how computer-aided detection (CAD) systems and other image analysis tools work. For example, machine learning algorithms are used to detect abnormalities in medical images and assist radiologists in making diagnoses.
Analog #
to-Digital Converter (ADC), in the context of medical imaging, refers to a device that converts analog signals into digital signals. This concept is essential in understanding how image data is acquired and processed in digital imaging modalities, such as digital radiography (DR) and MRI. Related terms include digital-to-analog converter (DAC) and signal processing.
Artificial Intelligence (AI), in medical imaging , refers to the use of <b… #
This concept is critical in understanding how AI can be used to improve image analysis, diagnosis, and patient care. For example, AI-powered CAD systems can detect breast cancer from mammography images with high accuracy.
Attenuation, in the context of medical imaging , refers to the reduction o… #
This concept is vital in understanding how different tissues absorb x-rays at varying rates, which affects the quality of the image produced. Related terms include absorption and scattering.
Beam Hardening, in medical imaging , refers to the phenomenon where the <b… #
This concept is essential in understanding how beam hardening affects image quality and how it can be corrected using filtering techniques.
Cathode Ray Tube (CRT), in the context of medical imaging , refers to a ty… #
This concept is critical in understanding how CRTs work and their limitations, such as resolution and contrast. Related terms include liquid crystal display (LCD) and light-emitting diode (LED).
Computed Tomography (CT), in medical imaging , refers to a imaging modalit… #
This concept is vital in understanding how CT works, its applications, and its limitations, such as radiation dose and artifact formation.
Contrast Agent, in the context of medical imaging , refers to a substance… #
This concept is essential in understanding how contrast agents work, their applications, and their potential risks, such as allergic reactions and kidney damage.
Contrast Resolution, in medical imaging , refers to the ability of an imag… #
This concept is critical in understanding how contrast resolution affects image quality and diagnostic accuracy. Related terms include signal-to-noise ratio (SNR) and contrast-to-noise ratio (CNR).
Deep Learning, in medical imaging , refers to a type of machine learnin… #
This concept is vital in understanding how deep learning can be used to improve image analysis, diagnosis, and patient care. For example, deep learning algorithms can be used to detect diabetic retinopathy from fundus images.
Digital Imaging and Communications in Medicine (DICOM), in the context of med… #
This concept is essential in understanding how DICOM facilitates the exchange of image data between different imaging modalities and healthcare systems. Related terms include Health Level Seven (HL7) and Integrating the Healthcare Enterprise (IHE).
Digital Radiography (DR), in medical imaging , refers to a type of imaging… #
This concept is critical in understanding how DR works, its applications, and its advantages, such as improved image quality and reduced radiation dose.
Digital Subtraction Angiography (DSA), in the context of medical imaging ,… #
This concept is vital in understanding how DSA works, its applications, and its limitations, such as radiation dose and contrast agent usage.
Echo Planar Imaging (EPI), in medical imaging , refers to a type of mag… #
This concept is essential in understanding how EPI works, its applications, and its limitations, such as artifact formation and signal-to-noise ratio (SNR).
Electronic Health Record (EHR), in the context of medical imaging , refers… #
This concept is critical in understanding how EHRs facilitate the storage, transmission, and display of medical images and other healthcare data. Related terms include picture archiving and communication system (PACS) and radiology information system (RIS).
Fluoroscopy, in medical imaging , refers to a type of imaging modality tha… #
This concept is vital in understanding how fluoroscopy works, its applications, and its limitations, such as radiation dose and image quality.
Functional Magnetic Resonance Imaging (fMRI), in the context of medical imagi… #
This concept is essential in understanding how fMRI works, its applications, and its limitations, such as artifact formation and signal-to-noise ratio (SNR).
Gantry, in medical imaging , refers to the moving part of a computed to… #
This concept is critical in understanding how the gantry works, its design, and its limitations, such as mechanical stability and x-ray beam quality.
Helical Computed Tomography (HCT), in the context of medical imaging , ref… #
This concept is vital in understanding how HCT works, its applications, and its advantages, such as improved image quality and reduced radiation dose.
Image Gently, in medical imaging , refers to a campaign that aims to reduc… #
This concept is essential in understanding how Image Gently promotes radiation safety and image quality in medical imaging.
Image Processing, in the context of medical imaging , refers to the use of… #
This concept is critical in understanding how image processing can improve image quality, detect abnormalities, and assist in diagnosis. Related terms include image analysis and computer-aided detection (CAD).
Image Reconstruction, in medical imaging , refers to the process of creati… #
This concept is vital in understanding how image reconstruction algorithms work, their applications, and their limitations, such as artifact formation and signal-to-noise ratio (SNR).
Intensity #
Modulated Radiation Therapy (IMRT), in the context of medical imaging, refers to a type of radiation therapy that uses x-rays to deliver precise doses of radiation to tumors. This concept is essential in understanding how IMRT works, its applications, and its advantages, such as improved tumor control and reduced side effects.
Liquid Crystal Display (LCD), in medical imaging , refers to a type of dis… #
This concept is critical in understanding how LCDs work, their advantages, and their limitations, such as resolution and contrast. Related terms include cathode ray tube (CRT) and light-emitting diode (LED).
Magnetic Resonance Angiography (MRA), in the context of medical imaging ,… #
This concept is vital in understanding how MRA works, its applications, and its limitations, such as artifact formation and signal-to-noise ratio (SNR).
Magnetic Resonance Imaging (MRI), in medical imaging , refers to a type of… #
This concept is essential in understanding how MRI works, its applications, and its limitations, such as claustrophobia and metal artifact formation.
Mammography, in the context of medical imaging , refers to a type of imagi… #
This concept is critical in understanding how mammography works, its applications, and its limitations, such as radiation dose and image quality.
Maximum Intensity Projection (MIP), in medical imaging , refers to a type… #
This concept is vital in understanding how MIP works, its applications, and its limitations, such as artifact formation and signal-to-noise ratio (SNR).
Medical Imaging, in the context of healthcare , refers to the use of vario… #
This concept is essential in understanding how medical imaging works, its applications, and its limitations, such as radiation dose and image quality.
Modality, in medical imaging , refers to a specific type of imaging techno… #
This concept is critical in understanding how different modalities work, their applications, and their limitations.
Molecular Imaging, in the context of medical imaging , refers to a type of… #
This concept is vital in understanding how molecular imaging works, its applications, and its limitations, such as tracer availability and image quality.
Multidetector Computed Tomography (MDCT), in medical imaging , refers to a… #
This concept is essential in understanding how MDCT works, its applications, and its advantages, such as improved image quality and reduced radiation dose.
Neural Network, in medical imaging , refers to a type of machine learni… #
This concept is critical in understanding how neural networks work, their applications, and their limitations, such as training data and computational power.
Nuclear Medicine, in the context of medical imaging , refers to a type of… #
This concept is vital in understanding how nuclear medicine works, its applications, and its limitations, such as radiation dose and image quality.
Optical Coherence Tomography (OCT), in medical imaging , refers to a type… #
This concept is essential in understanding how OCT works, its applications, and its limitations, such as depth penetration and image quality.
Picture Archiving and Communication System (PACS), in the context of medical… #
This concept is critical in understanding how PACS works, its applications, and its advantages, such as improved image access and reduced storage costs.
Pixel, in medical imaging , refers to the smallest unit of a digital image… #
This concept is vital in understanding how pixels work, their applications, and their limitations, such as resolution and signal-to-noise ratio (SNR).
Positron Emission Tomography (PET), in the context of medical imaging , re… #
This concept is essential in understanding how PET works, its applications, and its limitations, such as tracer availability and image quality.
Quality Control, in medical imaging , refers to the process of ensuring th… #
This concept is critical in understanding how quality control works, its applications, and its importance, such as patient safety and image quality.
Radiation Dose, in the context of medical imaging , refers to the amount o… #
This concept is vital in understanding how radiation dose works, its effects, and its limitations, such as cancer risk and genetic damage.
Radiation Therapy, in medical imaging , refers to the use of ionizing r… #
This concept is essential in understanding how radiation therapy works, its applications, and its limitations, such as side effects and tumor control.
Radiography, in the context of medical imaging , refers to a type of imagi… #
This concept is critical in understanding how radiography works, its applications, and its limitations, such as radiation dose and image quality.
Radiology Information System (RIS), in medical imaging , refers to a syste… #
This concept is vital in understanding how RIS works, its applications, and its advantages, such as improved workflow and reduced errors.
Reconstruction, in medical imaging , refers to the process of creating a <… #
This concept is essential in understanding how reconstruction algorithms work, their applications, and their limitations, such as artifact formation and signal-to-noise ratio (SNR).
Region of Interest (ROI), in medical imaging , refers to a specific area o… #
This concept is critical in understanding how ROI works, its applications, and its limitations, such as size and location.
Resolution, in medical imaging , refers to the ability of an imaging modal… #
This concept is vital in understanding how resolution works, its applications, and its limitations, such as pixel size and signal-to-noise ratio (SNR).
Scattering, in the context of medical imaging , refers to the phenomenon w… #
This concept is essential in understanding how scattering affects image quality and how it can be corrected using filtering techniques.
Segmentation, in medical imaging , refers to the process of dividing a … #
This concept is critical in understanding how segmentation works, its applications, and its limitations, such as accuracy and computational power.
Signal #
to-Noise Ratio (SNR), in medical imaging, refers to the ratio of the signal intensity to the noise intensity in an image. This concept is vital in understanding how SNR affects image quality and diagnostic accuracy. Related terms include contrast-to-noise ratio (CNR) and resolution.
Single Photon Emission Computed Tomography (SPECT), in the context of medical… #
This concept is essential in understanding how SPECT works, its applications, and its limitations, such as tracer availability and image quality.
Spatial Resolution, in medical imaging , refers to the ability of an imagi… #
This concept is critical in understanding how spatial resolution works, its applications, and its limitations, such as pixel size and signal-to-noise ratio (SNR).
Tomography, in medical imaging , refers to a type of imaging modality that… #
This concept is vital in understanding how tomography works, its applications, and its limitations, such as radiation dose and image quality.
Ultrasound, in the context of medical imaging , refers to a type of imagin… #
This concept is essential in understanding how ultrasound works, its applications, and its limitations, such as depth penetration and image quality.
Voxel, in medical imaging , refers to the smallest unit of a 3D image, rep… #
This concept is critical in understanding how voxels work, their applications, and their limitations, such as size and location.
Windowing, in medical imaging , refers to the process of adjusting the … #
This concept is vital in understanding how windowing works, its applications, and its limitations, such as image quality and diagnostic accuracy.
X-ray, in the context of medical imaging , refers to a type of electrom… #
This concept is essential in understanding how x-rays work, their applications, and their limitations, such as radiation dose and image quality.