New workflows and algorithms of bone scintigraphy based on SPECT-CT

Area of Science:

• Nuclear Medicine
• Medical Imaging

Background:

• Traditional bone scintigraphy involves time-consuming planar imaging and SPECT acquisition.
• Planar images lack precision in hotspot localization, necessitating additional SPECT scans.
• Current methods are lengthy and may not offer optimal anatomical detail.

Purpose of the Study:

• To develop and validate a novel, rapid workflow for whole-body bone SPECT/CT acquisition.
• To reduce overall scan time while maintaining or improving image quality and localization accuracy.
• To eliminate the need for separate anterior-posterior planar acquisitions.

Main Methods:

• A new projection-based stitching algorithm was developed to create whole-body SPECT from SPECT projections.
• The method reconstructs anterior-posterior views automatically from the whole-body SPECT data.
• Clinical data was used to validate the stitching method and assess its performance.

Main Results:

• The novel workflow successfully generated artifact-free whole-body SPECT images.
• The entire acquisition process, including whole-body SPECT, took approximately 16 minutes.
• This represents a significant reduction compared to the 60 minutes required for conventional methods.

Conclusions:

• The proposed stitching method offers an effective and efficient approach for whole-body bone SPECT/CT.
• This workflow substantially decreases patient scan time and improves the localization of bone abnormalities.
• The technique holds promise for enhancing routine nuclear medicine imaging procedures.