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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\u2019s MR system intended to be used in a physician\u2019s office for image-guided transperineal prostate biopsy. <\/jats:p>\n              <\/jats:sec><jats:sec>\n                <jats:title>Methods<\/jats:title>\n                <jats:p>The office-based\u00a0low-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. <\/jats:p>\n              <\/jats:sec><jats:sec>\n                <jats:title>Results<\/jats:title>\n                <jats:p>The average error between the planned target and the ground truth core center was 2.57\u2009\u00b1\u20091.02\u00a0mm, [1.93\u20133.21] 95% CI. The average error between the planned target to the actual core segment was 2.05\u2009\u00b1\u20091.24\u00a0mm, [1.53\u20132.56] 95% CI. <\/jats:p>\n              <\/jats:sec><jats:sec>\n                <jats:title>Conclusion<\/jats:title>\n                <jats:p>The average navigation errors were below the clinically significant threshold of 5\u00a0mm. The initial phantom results demonstrate the feasibility of the office-based system for prostate biopsy.<\/jats:p>\n              <\/jats:sec>","DOI":"10.1007\/s11548-021-02364-7","type":"journal-article","created":{"date-parts":[[2021,4,23]],"date-time":"2021-04-23T04:02:56Z","timestamp":1619150576000},"page":"741-748","update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":7,"title":["Initial phantom studies for an office-based low-field MR system for prostate biopsy"],"prefix":"10.1007","volume":"16","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-0380-2864","authenticated-orcid":false,"given":"Selin","family":"Chiragzada","sequence":"first","affiliation":[]},{"given":"Eva","family":"Hellman","sequence":"additional","affiliation":[]},{"given":"Duncan","family":"Michael","sequence":"additional","affiliation":[]},{"given":"Ram","family":"Narayanan","sequence":"additional","affiliation":[]},{"given":"Aleksandar","family":"Nacev","sequence":"additional","affiliation":[]},{"given":"Dinesh","family":"Kumar","sequence":"additional","affiliation":[]}],"member":"297","published-online":{"date-parts":[[2021,4,23]]},"reference":[{"key":"2364_CR1","unstructured":"Key Statistics for Prostate Cancer: Prostate Cancer Facts. 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