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Imaging Matrix
Sofía Karime Álvarez Falcón
Created on June 15, 2024
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Transcript
SPECT imaging
Emily Katalina Quezada Orozco | A01254256 Sofía Karime Álvarez Falcón | A01660984
Comparison of ionizing radiation imaging systems
Planar digital X-Ray
Computed Tomography
PET imaging
Digital Breast Tomosynthesis
Wilhelm Röntgen discovered X-rays in 1895 while experimenting with cathode rays.He determined that the rays created highly penetrative but invisible radiation that could pass through thick layers of paper and even low-density metals. He used photographic plates to demonstrate that objects were more or less transparent to X-rays depending on their thickness and conducted the first human radiography, using his wife's hand.
Who discovered/When was the modality invented?
Imaging acquisition system
Gastrointestinal SystemAbdominal X-rays: Detects bowel obstructions and kidney stones.Dental Applications Cavities and Gum Disease: Detects dental caries and bone loss.
Skeletal System Fractures and Injuries: Detects bone fractures and joint injuries. Arthritis: Evaluates joint degeneration. Respiratory System Chest X-rays: Diagnoses pneumonia, tuberculosis, COPD, and lung cancer. Cardiovascular System Heart Enlargement: Identifies cardiomegaly. Heart Failure: Monitors lung fluid buildup.
What are the main applications of the modality?
Who discovered/When was the modality invented?
Main Applications:
- Diagnosing cancers, cardiovascular diseases, and assessing internal injuries.
- Planning and guiding biopsies and surgeries.
- Non-destructive testing in engineering.
- Archaeology (e.g., examining mummies).
- Geology (analyzing rock samples and fossil structures).
What are the main applications of the modality?
Imaging acquisition system
In addition to showing what the structures inside your body look like, a SPECT scan shows how blood flows through your arteries and veins to your organs and tissues. The most common types of SPECT scans include:
- SPECT brain scan.
- SPECT heart scan.
- SPECT bone scan.
What does a SPECT scan show?
The first PET camera was built for human studies by Edward Hoffman, Michael M. Ter-Pogossian, and Michael E. Phelps in 1973 at Washington University, with DOE and NIH support. Phelps, who is often credited with inventing PET, received the 1998 Enrico Fermi Presidential Award for his work.
Who discovered/When was the modality invented?
Advantages and Disadvantages
Applcations
Imaging acquisition system
DBT vs 2D Mamography
3D Mammography (Digital Breast Tomosynthesis)
With digital breast tomosynthesis (DBT)—also known as 3D mammography—radiologists can view breast images in slices, which essentially allows them to see through tissue layers, making it less likely they’ll miss an early sign of cancer.
DBT
PET Basic Principles
Advantages and limitations
Applications
Who discovered/When was the modality invented?
How does a PET scan work?
Positron emission tomography (PET) is a type of nuclear medicine procedure that measures metabolic activity of the cells of body tissues. PET is actually a combination of nuclear medicine and biochemical analysis. Used mostly in patients with brain or heart conditions and cancer, PET helps to visualize the biochemical changes taking place in the body, such as the metabolism (the process by which cells change food into energy after food is digested and absorbed into the blood) of the heart muscle.
PET imaging
Advantages and limitations
Applications
Imaging acquisition system
Who discovered/When was the modality invented?
Digital Radiography System Explained (step-by-step)
A radiograph is a radiological diagnostic technique where the image is obtained by placing an object between the radiographic image receptor and a source of high-energy ionizing radiation. The denser parts of the object appear with different tones on the grayscale
Radiography
Advantages and limitations
Applications
Comparision of CT Generations
Computed Tomography | CT Scanners
CT
Who discovered/When was the modality invented?
SPECT Basic Principles
Advantages and limitations
Applications
SPECT/CT Scan animation
A single-photon emission computerized tomography (SPECT) scan is a type of nuclear medicine imaging test. Nuclear imaging uses radiotracers (radioactive substances) that help healthcare providers get detailed pictures of specific areas in your body.
SPECT imaging