[SOL-detectability of liver SPECT--analysis by SOL detection model].

Area of Science:

• Medical Imaging
• Nuclear Medicine
• Diagnostic Radiology

Background:

• Liver imaging is crucial for diagnosing space-occupying lesions (SOLs).
• Planar imaging is a standard technique, but its diagnostic performance can be limited.
• Advanced imaging modalities like SPECT may improve diagnostic accuracy.

Purpose of the Study:

• To evaluate the clinical efficacy of liver single photon emission computed tomography (SPECT).
• To compare the diagnostic confidence for SOLs using planar imaging versus planar imaging combined with SPECT.

Main Methods:

• Retrospective analysis of 134 liver cases from 11 hospitals.
• Image interpretation by 13 nuclear medicine physicians comparing planar images (PS) alone versus PS + SPECT.
• Analysis of diagnostic confidence for SOLs using a detection model.

Main Results:

• The combination of planar images and SPECT (PS + SPECT) showed higher detectability for space-occupying lesions (SOLs).
• Diagnostic confidence levels were analyzed for both imaging methods.
• The observed increase in SOL detectability with PS + SPECT was not statistically significant compared to PS alone.

Conclusions:

• Liver SPECT, when combined with planar imaging, may offer potential benefits in SOL detection.
• Further research with larger sample sizes is needed to confirm the statistical significance of these findings.
• The study highlights the ongoing evaluation of advanced imaging techniques in liver diagnostics.