What is the difference between PET MPI and SPECT MPI?

PET myocardial perfusion has a 95% sensitivity and 95% specificity for detecting coronary artery disease, while SPECT myocardial perfusion has an 87% sensitivity and 73% specificity for detection.

What is the difference between PET MPI and SPECT MPI?

PET myocardial perfusion has a 95% sensitivity and 95% specificity for detecting coronary artery disease, while SPECT myocardial perfusion has an 87% sensitivity and 73% specificity for detection.

What is the difference between SPECT and PET scanning?

The main difference between SPECT and PET scans is the type of radiotracers used. While SPECT scans measure gamma rays, the decay of the radiotracers used with PET scans produce small particles called positrons. A positron is a particle with roughly the same mass as an electron but oppositely charged.

Why is PET scan better quality than SPECT scan?

Other positives of PET are higher spatial resolution and the capability to perform quantitative measurements at the peak of stress and speed. Dr. Faulhaber said PET scan times of 30-40 minutes mean more patients can be processed in a day, instead of the two or more hours it takes for a SPECT scan.

What are the advantages and disadvantages of SPECT as compared to PET?

Important advantages of SPECT are that it has been extensively validated and has a good sensitivity, compared to other methods of assessment of myocardial viability. Cost of SPECT is lower than PET (positron emission tomography) imaging and is more widely available than PET in most regions.

Is a cardiac PET scan the same as a nuclear stress test?

Cardiac PET/CT is similar to other types of noninvasive tests to diagnose coronary artery disease (CAD). This includes a nuclear stress test, which uses radioactive material to check blood flow into the heart muscle at rest and during activity.

What is PET myocardial perfusion imaging?

Positron emission tomography (PET) myocardial perfusion imaging (MPI) is an imaging process that shows how well blood flows to the muscle of the heart (myocardium). This test is used to diagnose the presence or absence of coronary artery disease.

What are the advantages of PET over SPECT?

Emerging evidence consistently demonstrates that PET provides improved image quality, greater interpretive certainty, higher diagnostic accuracy, lower patient dosimetry, and shorter imaging protocols as compared to SPECT.

What is the primary benefit of SPECT over PET?

Which of the following is the primary benefit of SPECT over PET? SPECT offers the benefit of using radioactive tracers that are easier to obtain than PET.

Why is PET More Accurate Than SPECT?

For basic research, PET is the more flexible tool, because innovative tracers are more easily synthesised for PET than for SPECT. In addition, the spatial resolution of PET is better than that of SPECT – far better. This is due to the physical nature of nuclear decay of positrons.

What is SPECT cardiac test?

Single Photon Emission Computed Tomography (SPECT) is a non-invasive procedure that can accurately identify areas of abnormal myocardial perfusion, determine the functional capacity of your heart muscle, and separate viable (living) from non-viable (irreversibly damaged) tissue.

Which is better PET or SPECT?

What is a disadvantage of a PET scan?

Limitations of a PET Scan A PET scan is less accurate in certain situations: Slow-growing, less active tumors may not absorb much tracer. Small tumors (less than 7mm) may not be detectable. High levels of blood sugar can cause the cells to absorb this normal sugar rather than the radioactive, injected kind.