[Attenuation Correction]
導入
– What is attenuation?
– Importance of attenuation correction in medical imaging
Methods of Attenuation Correction
– Transmission-based attenuation correction
– Principle of transmission-based attenuation correction
– Utilization of external radioactive sources
– Implementation of positron emission tomography (PET) scans
– Scatter-based attenuation correction
– Principle of scatter-based attenuation correction
– Estimation of attenuation coefficients
– Challenges and limitations of scatter correction
Attenuation Correction in Computed Tomography (CT)
– Utilization of X-rays for imaging
– Principle of CT attenuation correction
– Generation of attenuation maps
– Impact of attenuation correction on CT images
Attenuation Correction in Single Photon Emission Computed Tomography (SPECT)
– Principle of SPECT attenuation correction
– Utilization of transmission measurements
– Iterative reconstruction techniques
– Examples of clinical applications
Attenuation Correction in Positron Emission Tomography (PET)
– PET basics and principle
– Importance of attenuation correction in PET
– Different methods for PET attenuation correction
– Limitations and challenges of PET attenuation correction
Advancements in Attenuation Correction Techniques
– Hybrid imaging modalities (e.g. PET/CT, SPECT/CT)
– Utilization of magnetic resonance imaging (MRI) for attenuation correction
– Novel algorithms and software developments
結論
– The significance of attenuation correction in medical imaging
– Future directions and potential improvements in attenuation correction techniques
