PET CT Hybrid Imaging

Overview

PET CT fuses metabolic PET data with CT anatomy in a single session improving lesion localization and diagnostic confidence.

Technique

Accurate attenuation correction and patient positioning are essential. Protocols balance PET uptake time and CT dose.

Clinical Uses

Oncology staging radiotherapy planning and assessment of treatment response.

Limitations and Safety

Combined radiation dose from PET and CT requires justification and optimization.

PET MRI Hybrid Imaging

Overview

PET MRI integrates PET metabolic data with MRI superior soft tissue contrast useful in neurologic and oncologic applications.

Technique

Complex attenuation correction and MR compatible PET detectors are required. Simultaneous acquisition enables temporal correlation.

Clinical Uses

Brain tumor evaluation pediatric oncology dose reduction and soft tissue tumor characterization.

Limitations and Safety

High cost limited availability and complex workflow. MRI contraindications still apply.