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Congress: ECR25
Poster Number: C-16634
Type: Poster: EPOS Radiologist (scientific)
Authorblock: H. Grover, D. Mogel, A. Kagen, N. Rofsky, C. Chen; New York, NY/US
Disclosures:
Hemal Grover: Nothing to disclose
Daniel Mogel: Nothing to disclose
Alexander Kagen: Nothing to disclose
Neil Rofsky: Nothing to disclose
Christine Chen: Nothing to disclose
Keywords: Genital / Reproductive system male, MR, Imaging sequences, Cancer
Purpose The purpose of this study is to compare the SNR and contrast-to-noise ratio (CNR) of 3T without DLR (GE Signa Architect, GE Healthcare) versus1.5T (GE Signa Artist, GE Healthcare) with DLR (AirTM Recon DL, GE Healthcare) MRI systems. 
Read more Methods and materials Background:Prostate MRI is commonly performed on 3 Tesla (T) scanners due to improved signal-to-noise ratio (SNR) compared to 1.5T, as high SNR is important for prostate cancer detection and staging. However, 3T MRI is associated with increased artifact and higher costs. 1.5T MRI using machine learning-based reconstruction algorithm (DLR) has the potential to offer comparable image quality by reducing artifacts. Furthermore, 1.5T MRI with DLR could reduce scan times and costs associated with prostate MRI.Methods:A retrospective review found men who...
Read more Results 3T MRI without DLR demonstrated significantly higher SNR and CNR compared to 1.5T MRI with DLR. Mean SNR for 3T group versus1.5T group was 111.3 and 79.5, respectively (p-value 0.04). Mean CNR for 3T group versus 1.5T was 57.8 and 39.2, respectively (p-value 0.02).  A moderate negative correlation (r=-0.44) was seen between SNR and FT in the 3T without DLR group, while a low degree of negative correlation (r=-0.2) was seen between SNR and FT in the 1.5T with DLR...
Read more Conclusion 3T MRI without DLR demonstrated superior SNR and CNR compared to 1.5T MRI with DLR. A stronger negative correlation between SNR and FT was seen with 3T MRI, however the difference was not statistically significant. Clinical Relevance/Applications: Although image quality at 1.5T MRI may improve with DLR, it should not replace 3T MRI at this time given the superior SNR and CNR of 3T MRI. 
Read more References 1. Virarkar M, Szklaruk J, Diab R, Bassett R, Bhosale P. Diagnostic value of 3.0 T versus 1.5 T MRI in staging prostate cancer: systematic review and meta-analysis. Pol J Radiol. 2022 Jul 29;87:e421-e429. doi: 10.5114/pjr.2022.118685. PMID: 35979151; PMCID: PMC9373864.2. Ullrich T, Quentin M, Oelers C, et al. Magnetic resonance imaging of the prostate at 1.5 versus 3.0T: a prospective comparison study of image quality.Eur J Radiol 2017; 90: 192-197. 3. Turkbey B, Haider MA. Deep learning-based artificial intelligence applications in...
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