Abstract / Description of output
PURPOSE/AIM
The development of robust MR-based attenuation correction methodology is necessary to make combined MR/PET imaging clinically relevant. The purpose of this exhibit is to introduce the existing MR-based attenuation correction (MRAC) techniques and compare those to the capabilities of transmission and CT-based methods.
CONTENT ORGANIZATION
1.) Traditional attenuation correction (AC) methods: Transmission-based AC and CT-based AC 2.) MR-based AC Acquisitions: Sequences for 3-compartment and 4-compartment segmentation 3.) MR-based AC Post-processing: Segmentation and atlas-based methods
SUMMARY
The major teaching points of this exhibit are: 1.) A necessary step to establish PET/MR in clinical practice is the development of robust attenuation correction methodology. 2.) MR cannot directly measure the attenuation of photons in tissue. However, using established characteristics for specific tissue types, an attenuation map equivalent can be determined. 3.) MR-based attenuation correction methods are evolving to be sufficient for clinical hybrid imaging and quantitative evaluation.
The development of robust MR-based attenuation correction methodology is necessary to make combined MR/PET imaging clinically relevant. The purpose of this exhibit is to introduce the existing MR-based attenuation correction (MRAC) techniques and compare those to the capabilities of transmission and CT-based methods.
CONTENT ORGANIZATION
1.) Traditional attenuation correction (AC) methods: Transmission-based AC and CT-based AC 2.) MR-based AC Acquisitions: Sequences for 3-compartment and 4-compartment segmentation 3.) MR-based AC Post-processing: Segmentation and atlas-based methods
SUMMARY
The major teaching points of this exhibit are: 1.) A necessary step to establish PET/MR in clinical practice is the development of robust attenuation correction methodology. 2.) MR cannot directly measure the attenuation of photons in tissue. However, using established characteristics for specific tissue types, an attenuation map equivalent can be determined. 3.) MR-based attenuation correction methods are evolving to be sufficient for clinical hybrid imaging and quantitative evaluation.
| Original language | English |
|---|---|
| Publication status | Published - 2010 |
| Externally published | Yes |
| Event | Radiological Society of North America 2010 Scientific Assembly and Annual Meeting - Chicago, IL, United States Duration: 28 Nov 2010 → 3 Dec 2010 |
Conference
| Conference | Radiological Society of North America 2010 Scientific Assembly and Annual Meeting |
|---|---|
| Country/Territory | United States |
| City | Chicago, IL |
| Period | 28/11/10 → 3/12/10 |