Simulated Fewer-Angle SPECT/CT Imaging Protocol for Parathyroid Adenoma.

Area of Science:

• Nuclear Medicine
• Radiology
• Medical Imaging

Background:

• Parathyroid adenoma diagnosis relies on SPECT/CT imaging.
• Standard SPECT/CT protocols involve lengthy imaging times.
• Reducing patient scan duration is a clinical priority.

Purpose of the Study:

• To evaluate a novel, reduced-acquisition SPECT/CT protocol for parathyroid adenoma identification.
• To assess the diagnostic accuracy and efficiency of the fewer-angle SPECT/CT (FASpecT/CT) method.
• To determine if FASpecT/CT can decrease patient imaging time without compromising image quality.

Main Methods:

• Retrospective analysis of 50 parathyroid SPECT/CT scans.
• Comparison between a standard 60-stop protocol and a 15-stop FASpecT/CT protocol.
• Statistical evaluation of inter-method agreement (McNemar, Cohen κ) and interrater reliability (Fleiss κ).

Main Results:

• High concordance (90%) in final interpretations between standard and FASpecT/CT protocols.
• FASpecT/CT demonstrated high sensitivity (89.5%) and specificity (90.3%) for parathyroid adenoma detection.
• Statistically significant substantial agreement was found between protocols and among readers.

Conclusions:

• Advances in camera technology and iterative reconstruction enable diagnostic-quality SPECT/CT with fewer imaging stops.
• The fewer-angle SPECT/CT (FASpecT/CT) protocol is a viable alternative to standard protocols, reducing patient scan time.
• FASpecT/CT offers a promising solution for efficient and accurate parathyroid imaging.