Single-photon emission computed tomography (SPECT, or less commonly, SPET) is a nuclear medicinetomographic imaging technique using gamma rays. It is very similar to conventional nuclear medicine planar imaging using a gamma camera. However, it is able to provide true 3D information. This information is typically presented as cross-sectional slices through the patient, but can be freely reformatted or manipulated as required.
The technique requires delivery of a gamma-emitting radioisotope (a radionuclide) into the patient, normally through injection into the bloodstream. On occasion, the radioisotope is a simple soluble dissolved ion, such as an isotope of gallium(III). Most of the time, though, a marker radioisotope is attached to a specific ligand to create a radioligand, whose properties bind it to certain types of tissues. This marriage allows the combination of ligand and radiopharmaceutical to be carried and bound to a place of interest in the body, where the ligand concentration is seen by a gamma camera.
The imaging agent used in SPECT emits gamma rays, as opposed to the positron emitters (such as 18F) used in PET. There are a range of radiotracers (such as 99mTc, 111In, 123I, 201Tl) that can be used, depending on the specific application.
A CT scan, also called X-ray computed tomography (X-ray CT) or computerized axial tomography scan (CAT scan), makes use of computer-processed combinations of many X-ray images taken from different angles to produce cross-sectional (tomographic) images (virtual 'slices') of specific areas of a scanned object, allowing the user to see inside the object without cutting.
As X-ray CT is the most common form of CT in medicine and various other contexts, the term computed tomography alone (or CT) is often used to refer to X-ray CT, although other types exist (such as positron emission tomography [PET] and single-photon emission computed tomography [SPECT]). Older and less preferred terms that also refer to X-ray CT are computed axial tomography (CAT scan) and computer-aided/assisted tomography. X-ray CT is a form of radiography, although the word "radiography" used alone usually refers, by wide convention, to non-tomographic radiography.
This video contains a visual explanation of the differences between nuclear medicine and radiology as well as the differences between the two major nuclear medicine imaging techniques: Positron Emission Tomography (PET) and Single Photon computed emission tomography (SPECT). This video serves as an introduction to the field of nuclear medicine.
#NuclearMedicine #SPECT #PET
Timecodes:
0:00 Introduction
0:20 Nuclear Medicine vs. Radiology
0:36 Applications
1:03 PET
1:18 SPECT
1:30 Radiopharmaceuticals
2:22 Quick Summary
2:54 PET Image Formation
3:27 SPECT Image Formation
4:02 PET scanner vs. SPECT scanner
4:25 The End
PET vs SPECT
published: 02 Nov 2022
SPECT Scan | Single Photon Emission Computed Tomography |
SPECT Stands for single photon emission computed tomography
SPECT) scan is an imaging test that shows how blood flows to tissues and organs
SPECT scans use radioactive materials and a gamma camera to produces three-d images of the inside of your organs.
This is the non-invasive way for Drs to evaluate the health internal organs,
Purpose of Test
The scan is ordered to diagnose and monitor ...
First Brain and neurological conditions
Second Cardiac conditions
Third Bone disorders
published: 26 Oct 2022
Single photon emission computed tomography (SPECT)
Single photon emission computed tomography (SPECT) covers nuclear medicine and X-ray methods which allows image reconstructions of specific part of the body.
Let’s get closer to the one of these unique systems that is under EMICO Medika service.
Please contact us with any additional questions!
https://www.facebook.com/emicomedika/
https://vk.com/emicomedika
https://www.flickr.com/photos/147962060@N04/
https://twitter.com/EmicoMedika
https://plus.google.com/+EMICOMedikaVilnius
published: 04 Dec 2017
SPECT Single Photon Emission Computed Tomography
Anabra Medical Biodex : Your Universal and Pedagogical Guide to Medical Education
Medical Biodex is a cutting-edge mobile app that revolutionizes medical learning. Access over 10,000 video flashcards across 50+ specialties, all at your fingertips. It's free and designed for medical students, professionals, and lifelong learners.
With concise, visual video flashcards, Medical Biodex offers comprehensive learning. The app supports over 10 languages, ensuring accessibility worldwide. Each flashcard presents essential information in a visually engaging format.
From anatomy to pharmacology and more, Medical Biodex covers a wide range of medical specialties. The flashcards incorporate visual cues, animations, and real-life examples, simplifying complex concepts and aiding retention.
Join a g...
published: 31 Aug 2023
Single Photon Emission Computed Tomography (SPECT) Part 1
Single Photon Emission Computed Tomography (SPECT) is a modern from of medical imaging, which uses radioactive markers to gather information about the body.
There are different radioactive markers which can be used.
In this video we discuss a specific example of a marker which uses technetium-99 to illustrate the principle of how SPECT works.
published: 25 Oct 2014
SPECT/CT Scan animation
An common and important nuclear medicine procedure is a SPECT/CT scan. A SPECT scan is used to assess the function of tissues or organs in your body to identify disease. A CT scan provides your doctor with high resolution images of structures in your body. Today, generally a SPECT/CT scan is performed where the images from the two different types of scans are captured during one session and the images are combined. Each piece of information is important, but when combined they are even more useful. Find out more: www.ansto.gov.au/nuclearmedicine
published: 28 Feb 2022
Physics : Single Photon Emission Computed Tomography ( SPECT ) / General Radiology Channel.
published: 25 Jun 2021
PET vs SPECT | Nuclear medicine
What is nuclear medicine? What is the difference between radiology and nuclear medicine? What is the tracer principle? Difference between PET and SPECT? This video is an introduction to the field of nuclear medicine.
Timecodes
0:00 Introduction
0:34 What is nuclear medicine?
0:52 Difference between radiology and nuclear medicine
1:42 Tracer principle
2:38 Example tracer principle
3:01 PET vs. SPECT
4:37 Take home messages
#PET #SPECT #Nuclearmedicine #Radiology #difference
Music: https://www.bensound.com
References:
- https://somecasesplusmore.wordpress.com/tag/foot-and-ankle/
- https://www.researchgate.net/figure/Illustration-of-PET-and-SPECT-A-Positron-annihilation-in-PET-the-emitted-positron_fig4_51815430
published: 28 Dec 2021
Thallium 201 single photon emission computed tomography (SPECT)
Thallium 201 SPECT imaging is one of the oldest methods of assessing myocardial viability, though of late it is seldom used because of short half life of Thallium 201 and the free availability of Technetium 99, the alternate tracer. Initial uptake of Thallium 201 into the myocardium is proportional to the blood flow of the region. But the washout is dependent on the difference in the concentration in blood and myocardial cell as well as the integrity of the sodium potassium adenosine triphosphatase pump.
This is because Thallium 201 is a potassium analogue. Hence in regions of lower uptake due to reduced blood supply, if the washout is slower, it indicates viable myocardium. Only viable myocardium is able to retain the tracer and take up circulating Thallium 201 using the intact membrane...
This video contains a visual explanation of the differences between nuclear medicine and radiology as well as the differences between the two major nuclear medi...
This video contains a visual explanation of the differences between nuclear medicine and radiology as well as the differences between the two major nuclear medicine imaging techniques: Positron Emission Tomography (PET) and Single Photon computed emission tomography (SPECT). This video serves as an introduction to the field of nuclear medicine.
#NuclearMedicine #SPECT #PET
Timecodes:
0:00 Introduction
0:20 Nuclear Medicine vs. Radiology
0:36 Applications
1:03 PET
1:18 SPECT
1:30 Radiopharmaceuticals
2:22 Quick Summary
2:54 PET Image Formation
3:27 SPECT Image Formation
4:02 PET scanner vs. SPECT scanner
4:25 The End
PET vs SPECT
This video contains a visual explanation of the differences between nuclear medicine and radiology as well as the differences between the two major nuclear medicine imaging techniques: Positron Emission Tomography (PET) and Single Photon computed emission tomography (SPECT). This video serves as an introduction to the field of nuclear medicine.
#NuclearMedicine #SPECT #PET
Timecodes:
0:00 Introduction
0:20 Nuclear Medicine vs. Radiology
0:36 Applications
1:03 PET
1:18 SPECT
1:30 Radiopharmaceuticals
2:22 Quick Summary
2:54 PET Image Formation
3:27 SPECT Image Formation
4:02 PET scanner vs. SPECT scanner
4:25 The End
PET vs SPECT
SPECT Stands for single photon emission computed tomography
SPECT) scan is an imaging test that shows how blood flows to tissues and organs
SPECT scans use r...
SPECT Stands for single photon emission computed tomography
SPECT) scan is an imaging test that shows how blood flows to tissues and organs
SPECT scans use radioactive materials and a gamma camera to produces three-d images of the inside of your organs.
This is the non-invasive way for Drs to evaluate the health internal organs,
Purpose of Test
The scan is ordered to diagnose and monitor ...
First Brain and neurological conditions
Second Cardiac conditions
Third Bone disorders
SPECT Stands for single photon emission computed tomography
SPECT) scan is an imaging test that shows how blood flows to tissues and organs
SPECT scans use radioactive materials and a gamma camera to produces three-d images of the inside of your organs.
This is the non-invasive way for Drs to evaluate the health internal organs,
Purpose of Test
The scan is ordered to diagnose and monitor ...
First Brain and neurological conditions
Second Cardiac conditions
Third Bone disorders
Single photon emission computed tomography (SPECT) covers nuclear medicine and X-ray methods which allows image reconstructions of specific part of the body.
L...
Single photon emission computed tomography (SPECT) covers nuclear medicine and X-ray methods which allows image reconstructions of specific part of the body.
Let’s get closer to the one of these unique systems that is under EMICO Medika service.
Please contact us with any additional questions!
https://www.facebook.com/emicomedika/
https://vk.com/emicomedika
https://www.flickr.com/photos/147962060@N04/
https://twitter.com/EmicoMedika
https://plus.google.com/+EMICOMedikaVilnius
Single photon emission computed tomography (SPECT) covers nuclear medicine and X-ray methods which allows image reconstructions of specific part of the body.
Let’s get closer to the one of these unique systems that is under EMICO Medika service.
Please contact us with any additional questions!
https://www.facebook.com/emicomedika/
https://vk.com/emicomedika
https://www.flickr.com/photos/147962060@N04/
https://twitter.com/EmicoMedika
https://plus.google.com/+EMICOMedikaVilnius
Anabra Medical Biodex : Your Universal and Pedagogical Guide to Medical Education
Medical Biodex is a cutting-edge mobile app that revolutionizes medical learn...
Anabra Medical Biodex : Your Universal and Pedagogical Guide to Medical Education
Medical Biodex is a cutting-edge mobile app that revolutionizes medical learning. Access over 10,000 video flashcards across 50+ specialties, all at your fingertips. It's free and designed for medical students, professionals, and lifelong learners.
With concise, visual video flashcards, Medical Biodex offers comprehensive learning. The app supports over 10 languages, ensuring accessibility worldwide. Each flashcard presents essential information in a visually engaging format.
From anatomy to pharmacology and more, Medical Biodex covers a wide range of medical specialties. The flashcards incorporate visual cues, animations, and real-life examples, simplifying complex concepts and aiding retention.
Join a global community of learners passionate about advancing medical knowledge and improving healthcare.
Prepare for an extraordinary learning adventure with Medical Biodex. Ignite your medical learning today!
Medical Biodex - Revolutionizing Medical Education.
Anabra Medical Biodex : Your Universal and Pedagogical Guide to Medical Education
Medical Biodex is a cutting-edge mobile app that revolutionizes medical learning. Access over 10,000 video flashcards across 50+ specialties, all at your fingertips. It's free and designed for medical students, professionals, and lifelong learners.
With concise, visual video flashcards, Medical Biodex offers comprehensive learning. The app supports over 10 languages, ensuring accessibility worldwide. Each flashcard presents essential information in a visually engaging format.
From anatomy to pharmacology and more, Medical Biodex covers a wide range of medical specialties. The flashcards incorporate visual cues, animations, and real-life examples, simplifying complex concepts and aiding retention.
Join a global community of learners passionate about advancing medical knowledge and improving healthcare.
Prepare for an extraordinary learning adventure with Medical Biodex. Ignite your medical learning today!
Medical Biodex - Revolutionizing Medical Education.
Single Photon Emission Computed Tomography (SPECT) is a modern from of medical imaging, which uses radioactive markers to gather information about the body.
Th...
Single Photon Emission Computed Tomography (SPECT) is a modern from of medical imaging, which uses radioactive markers to gather information about the body.
There are different radioactive markers which can be used.
In this video we discuss a specific example of a marker which uses technetium-99 to illustrate the principle of how SPECT works.
Single Photon Emission Computed Tomography (SPECT) is a modern from of medical imaging, which uses radioactive markers to gather information about the body.
There are different radioactive markers which can be used.
In this video we discuss a specific example of a marker which uses technetium-99 to illustrate the principle of how SPECT works.
An common and important nuclear medicine procedure is a SPECT/CT scan. A SPECT scan is used to assess the function of tissues or organs in your body to identify...
An common and important nuclear medicine procedure is a SPECT/CT scan. A SPECT scan is used to assess the function of tissues or organs in your body to identify disease. A CT scan provides your doctor with high resolution images of structures in your body. Today, generally a SPECT/CT scan is performed where the images from the two different types of scans are captured during one session and the images are combined. Each piece of information is important, but when combined they are even more useful. Find out more: www.ansto.gov.au/nuclearmedicine
An common and important nuclear medicine procedure is a SPECT/CT scan. A SPECT scan is used to assess the function of tissues or organs in your body to identify disease. A CT scan provides your doctor with high resolution images of structures in your body. Today, generally a SPECT/CT scan is performed where the images from the two different types of scans are captured during one session and the images are combined. Each piece of information is important, but when combined they are even more useful. Find out more: www.ansto.gov.au/nuclearmedicine
What is nuclear medicine? What is the difference between radiology and nuclear medicine? What is the tracer principle? Difference between PET and SPECT? This vi...
What is nuclear medicine? What is the difference between radiology and nuclear medicine? What is the tracer principle? Difference between PET and SPECT? This video is an introduction to the field of nuclear medicine.
Timecodes
0:00 Introduction
0:34 What is nuclear medicine?
0:52 Difference between radiology and nuclear medicine
1:42 Tracer principle
2:38 Example tracer principle
3:01 PET vs. SPECT
4:37 Take home messages
#PET #SPECT #Nuclearmedicine #Radiology #difference
Music: https://www.bensound.com
References:
- https://somecasesplusmore.wordpress.com/tag/foot-and-ankle/
- https://www.researchgate.net/figure/Illustration-of-PET-and-SPECT-A-Positron-annihilation-in-PET-the-emitted-positron_fig4_51815430
What is nuclear medicine? What is the difference between radiology and nuclear medicine? What is the tracer principle? Difference between PET and SPECT? This video is an introduction to the field of nuclear medicine.
Timecodes
0:00 Introduction
0:34 What is nuclear medicine?
0:52 Difference between radiology and nuclear medicine
1:42 Tracer principle
2:38 Example tracer principle
3:01 PET vs. SPECT
4:37 Take home messages
#PET #SPECT #Nuclearmedicine #Radiology #difference
Music: https://www.bensound.com
References:
- https://somecasesplusmore.wordpress.com/tag/foot-and-ankle/
- https://www.researchgate.net/figure/Illustration-of-PET-and-SPECT-A-Positron-annihilation-in-PET-the-emitted-positron_fig4_51815430
Thallium 201 SPECT imaging is one of the oldest methods of assessing myocardial viability, though of late it is seldom used because of short half life of Thalli...
Thallium 201 SPECT imaging is one of the oldest methods of assessing myocardial viability, though of late it is seldom used because of short half life of Thallium 201 and the free availability of Technetium 99, the alternate tracer. Initial uptake of Thallium 201 into the myocardium is proportional to the blood flow of the region. But the washout is dependent on the difference in the concentration in blood and myocardial cell as well as the integrity of the sodium potassium adenosine triphosphatase pump.
This is because Thallium 201 is a potassium analogue. Hence in regions of lower uptake due to reduced blood supply, if the washout is slower, it indicates viable myocardium. Only viable myocardium is able to retain the tracer and take up circulating Thallium 201 using the intact membrane transport. In non viable myocardium, cell membrane integrity is lost and washout is more rapid. Hence a redistribution of tracer indicates viability while a fixed perfusion defect indicates loss of viability.
Imaging protocols for Thallium 201 SPECT
Stress-redistribution
Rest-redistribution
Stress-redistribution-reinjection
In stress-redistribution, injection is given at peak stress (usually treadmill exercise) and initial imaging done, followed by delayed imaging after 3-4 hours. This technique may underestimate myocardial viability.
Rest-redistribution is also similar, with initial baseline imaging followed by delayed imaging after 3-4 hours. This method also can underestimate viability.
In the stress-redistribution-reinjection method, a reinjection of the isotope is given immediately after acquiring the delayed images. Other methods include assessment of late redistribution at 24 hours and nitrate enhanced stress-redistribution-reinjection. Second injection avoids the low counts and image quality at 24 hours.
Thallium 201 SPECT imaging is one of the oldest methods of assessing myocardial viability, though of late it is seldom used because of short half life of Thallium 201 and the free availability of Technetium 99, the alternate tracer. Initial uptake of Thallium 201 into the myocardium is proportional to the blood flow of the region. But the washout is dependent on the difference in the concentration in blood and myocardial cell as well as the integrity of the sodium potassium adenosine triphosphatase pump.
This is because Thallium 201 is a potassium analogue. Hence in regions of lower uptake due to reduced blood supply, if the washout is slower, it indicates viable myocardium. Only viable myocardium is able to retain the tracer and take up circulating Thallium 201 using the intact membrane transport. In non viable myocardium, cell membrane integrity is lost and washout is more rapid. Hence a redistribution of tracer indicates viability while a fixed perfusion defect indicates loss of viability.
Imaging protocols for Thallium 201 SPECT
Stress-redistribution
Rest-redistribution
Stress-redistribution-reinjection
In stress-redistribution, injection is given at peak stress (usually treadmill exercise) and initial imaging done, followed by delayed imaging after 3-4 hours. This technique may underestimate myocardial viability.
Rest-redistribution is also similar, with initial baseline imaging followed by delayed imaging after 3-4 hours. This method also can underestimate viability.
In the stress-redistribution-reinjection method, a reinjection of the isotope is given immediately after acquiring the delayed images. Other methods include assessment of late redistribution at 24 hours and nitrate enhanced stress-redistribution-reinjection. Second injection avoids the low counts and image quality at 24 hours.
This video contains a visual explanation of the differences between nuclear medicine and radiology as well as the differences between the two major nuclear medicine imaging techniques: Positron Emission Tomography (PET) and Single Photon computed emission tomography (SPECT). This video serves as an introduction to the field of nuclear medicine.
#NuclearMedicine #SPECT #PET
Timecodes:
0:00 Introduction
0:20 Nuclear Medicine vs. Radiology
0:36 Applications
1:03 PET
1:18 SPECT
1:30 Radiopharmaceuticals
2:22 Quick Summary
2:54 PET Image Formation
3:27 SPECT Image Formation
4:02 PET scanner vs. SPECT scanner
4:25 The End
PET vs SPECT
SPECT Stands for single photon emission computed tomography
SPECT) scan is an imaging test that shows how blood flows to tissues and organs
SPECT scans use radioactive materials and a gamma camera to produces three-d images of the inside of your organs.
This is the non-invasive way for Drs to evaluate the health internal organs,
Purpose of Test
The scan is ordered to diagnose and monitor ...
First Brain and neurological conditions
Second Cardiac conditions
Third Bone disorders
Single photon emission computed tomography (SPECT) covers nuclear medicine and X-ray methods which allows image reconstructions of specific part of the body.
Let’s get closer to the one of these unique systems that is under EMICO Medika service.
Please contact us with any additional questions!
https://www.facebook.com/emicomedika/
https://vk.com/emicomedika
https://www.flickr.com/photos/147962060@N04/
https://twitter.com/EmicoMedika
https://plus.google.com/+EMICOMedikaVilnius
Anabra Medical Biodex : Your Universal and Pedagogical Guide to Medical Education
Medical Biodex is a cutting-edge mobile app that revolutionizes medical learning. Access over 10,000 video flashcards across 50+ specialties, all at your fingertips. It's free and designed for medical students, professionals, and lifelong learners.
With concise, visual video flashcards, Medical Biodex offers comprehensive learning. The app supports over 10 languages, ensuring accessibility worldwide. Each flashcard presents essential information in a visually engaging format.
From anatomy to pharmacology and more, Medical Biodex covers a wide range of medical specialties. The flashcards incorporate visual cues, animations, and real-life examples, simplifying complex concepts and aiding retention.
Join a global community of learners passionate about advancing medical knowledge and improving healthcare.
Prepare for an extraordinary learning adventure with Medical Biodex. Ignite your medical learning today!
Medical Biodex - Revolutionizing Medical Education.
Single Photon Emission Computed Tomography (SPECT) is a modern from of medical imaging, which uses radioactive markers to gather information about the body.
There are different radioactive markers which can be used.
In this video we discuss a specific example of a marker which uses technetium-99 to illustrate the principle of how SPECT works.
An common and important nuclear medicine procedure is a SPECT/CT scan. A SPECT scan is used to assess the function of tissues or organs in your body to identify disease. A CT scan provides your doctor with high resolution images of structures in your body. Today, generally a SPECT/CT scan is performed where the images from the two different types of scans are captured during one session and the images are combined. Each piece of information is important, but when combined they are even more useful. Find out more: www.ansto.gov.au/nuclearmedicine
What is nuclear medicine? What is the difference between radiology and nuclear medicine? What is the tracer principle? Difference between PET and SPECT? This video is an introduction to the field of nuclear medicine.
Timecodes
0:00 Introduction
0:34 What is nuclear medicine?
0:52 Difference between radiology and nuclear medicine
1:42 Tracer principle
2:38 Example tracer principle
3:01 PET vs. SPECT
4:37 Take home messages
#PET #SPECT #Nuclearmedicine #Radiology #difference
Music: https://www.bensound.com
References:
- https://somecasesplusmore.wordpress.com/tag/foot-and-ankle/
- https://www.researchgate.net/figure/Illustration-of-PET-and-SPECT-A-Positron-annihilation-in-PET-the-emitted-positron_fig4_51815430
Thallium 201 SPECT imaging is one of the oldest methods of assessing myocardial viability, though of late it is seldom used because of short half life of Thallium 201 and the free availability of Technetium 99, the alternate tracer. Initial uptake of Thallium 201 into the myocardium is proportional to the blood flow of the region. But the washout is dependent on the difference in the concentration in blood and myocardial cell as well as the integrity of the sodium potassium adenosine triphosphatase pump.
This is because Thallium 201 is a potassium analogue. Hence in regions of lower uptake due to reduced blood supply, if the washout is slower, it indicates viable myocardium. Only viable myocardium is able to retain the tracer and take up circulating Thallium 201 using the intact membrane transport. In non viable myocardium, cell membrane integrity is lost and washout is more rapid. Hence a redistribution of tracer indicates viability while a fixed perfusion defect indicates loss of viability.
Imaging protocols for Thallium 201 SPECT
Stress-redistribution
Rest-redistribution
Stress-redistribution-reinjection
In stress-redistribution, injection is given at peak stress (usually treadmill exercise) and initial imaging done, followed by delayed imaging after 3-4 hours. This technique may underestimate myocardial viability.
Rest-redistribution is also similar, with initial baseline imaging followed by delayed imaging after 3-4 hours. This method also can underestimate viability.
In the stress-redistribution-reinjection method, a reinjection of the isotope is given immediately after acquiring the delayed images. Other methods include assessment of late redistribution at 24 hours and nitrate enhanced stress-redistribution-reinjection. Second injection avoids the low counts and image quality at 24 hours.
Single-photon emission computed tomography (SPECT, or less commonly, SPET) is a nuclear medicinetomographic imaging technique using gamma rays. It is very similar to conventional nuclear medicine planar imaging using a gamma camera. However, it is able to provide true 3D information. This information is typically presented as cross-sectional slices through the patient, but can be freely reformatted or manipulated as required.
The technique requires delivery of a gamma-emitting radioisotope (a radionuclide) into the patient, normally through injection into the bloodstream. On occasion, the radioisotope is a simple soluble dissolved ion, such as an isotope of gallium(III). Most of the time, though, a marker radioisotope is attached to a specific ligand to create a radioligand, whose properties bind it to certain types of tissues. This marriage allows the combination of ligand and radiopharmaceutical to be carried and bound to a place of interest in the body, where the ligand concentration is seen by a gamma camera.
(HT photo) ... As part of the visit, he inaugurated PET-CT (Positron Emission Tomography – Computed Tomography) and SPECT-CT (SinglePhoton Emission Computed Tomography) scanners, installed at a cost of ₹25 crore ... See More ... See Less ....