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Abstract #3123

Evaluating the Value of SEMAC-VAT with Compressed SENSE Technology in MRI Metal Artifact Reduction in Patients with Lumbar Metal Implants

Hongjie Cao1, Dandan Zheng2, and Dianjiang Zhao1
1Department of Radiology, Beijing Chaoyang Hospital, Capital Medical University,, Beijing, China, 2Clinical & Technique Support, Philips Healthcare, Beijing, China

Synopsis

Keywords: Bone/Skeletal, MSK, Metal Implant,Metal Artifact Reduction,Compressed SENSE ,,SEMAC-VAT

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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