Single-photon emission computed tomography/computed tomography in abdominal diseases

Area of Science:

• Nuclear Medicine
• Medical Imaging
• Radiology

Background:

• Single-photon emission computed tomography (SPECT) excels at functional imaging but lacks anatomical detail.
• Traditional fusion of SPECT with CT or MRI is time-consuming and not clinically practical.
• Anatomical landmarks are crucial for precise localization of SPECT findings in abdominal studies.

Purpose of the Study:

• To evaluate the clinical utility of integrated SPECT/CT systems in abdominal imaging.
• To demonstrate how hybrid imaging improves diagnostic accuracy and clinical decision-making for abdominal diseases.

Main Methods:

• Utilized dual-modality SPECT/CT systems for simultaneous image acquisition.
• Hardware-based co-registration of SPECT and CT data.
• Clinical application in various abdominal conditions, including hepatic hemangiomas, splenosis, and inflammatory bowel disease.

Main Results:

• SPECT/CT provides valuable additional clinical information compared to SPECT alone.
• Demonstrated improved diagnostic accuracy in differentiating hepatic hemangiomas.
• Enabled precise localization of active splenic tissue and identification of involved bowel segments.

Conclusions:

• Integrated SPECT/CT systems represent a significant advancement in abdominal nuclear medicine.
• Hybrid imaging offers superior anatomical correlation for functional SPECT data.
• SPECT/CT is highly beneficial for differential diagnosis, therapy optimization, and precise localization in diverse abdominal pathologies.