This analysis evaluates image clarity with SEMAC-VAT and Compressed SENSE in lumbar implant patients, suggesting effective solutions for metal artifacts.
Motivation: SEMAC-VAT improves imaging around metallic implants but has prolonged acquisition times. Compressed SENSE (CS) significantly reduces scan times, may address this issue. Goal(s): To evaluate the clinical utility of CS combined with SEMAC-VAT for patients with lumbar metal implants and identify the optimal CS factor. Approach: SEMAC-VAT T2 imaging utilized parallel acquisition and CS (CS4, CS6). Comparisons included implant artifact area, clarity, and diagnostic confidence. A paired t-test and Wilcoxon signed-rank test assessed acceleration factors and image quality scores. Results: SEMAC-VAT technology integrated with CS offers a promising solution for metal artifact reduction. The CS factor 4 was recommended. Impact: SEMAC-VAT technology integrated with Compressed SENSE provides a promising solution for metal artifact reduction in patients with lumbar metal implants within clinical acceptable time.
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Cao et al. (2025) studied this question.