ArticleInternational journal of computer assisted radiology and surgery2021
Initial phantom studies for an office-based low-field MR system for prostate biopsy.
Article in International journal of computer assisted radiology and surgery, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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3 citing papers in PubMed, 7 citations in OpenAlex.
- Toward Image-Guided, Robot-Assisted Focal Prostate Resection: Do Enhanced Dexterity and Visualization Improve Performance?Journal of medical robotics research · 2026Article
- Low-field MRI: Clinical promise and challenges.Journal of magnetic resonance imaging : JMRI · 2023Review
- Article
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6 authors at 1 institution in 1 country.
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Abstract
purposeProstate cancer is the second most prevalent cancer in US men, with about 192,000 new cases and 33,000 deaths predicted for 2020. With only a 31% 5-year survival rate for patients with an initial diagnosis of stage-four prostate cancer, the necessity for early screening and diagnosis is clear. In this paper, we present navigation accuracy results for Promaxo's MR system intended to be used in a physician's office for image-guided transperineal prostate biopsy.
methodsThe office-based low-field MR system was used to acquire images of prostate phantoms with needles inserted through a transperineal template. Coordinates of the estimated sample core locations in the office-based MR system were compared to ground truth needle coordinates identified in a 1.5T external reference scan. The error was measured as the distance between the planned target and the ground truth core center and as the shortest perpendicular distance between the planned target and the ground truth trajectory of the whole core.
resultsThe average error between the planned target and the ground truth core center was 2.57 ± 1.02 mm, [1.93-3.21] 95% CI. The average error between the planned target to the actual core segment was 2.05 ± 1.24 mm, [1.53-2.56] 95% CI.
conclusionThe average navigation errors were below the clinically significant threshold of 5 mm. The initial phantom results demonstrate the feasibility of the office-based system for prostate biopsy.
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