Prostate magnetic resonance imaging (MRI) in patients with hip implants-presetting a protocol using a phantom.

Autor:	Vasilev YA; State Budget-Funded Health Care Institution of the City of Moscow 'Research and Practical Clinical Center for Diagnostics and Telemedicine Technologies of the Moscow Health Care Department', Moscow, the Russian Federation., Panina OY; State Budget-Funded Health Care Institution of the City of Moscow 'Research and Practical Clinical Center for Diagnostics and Telemedicine Technologies of the Moscow Health Care Department', Moscow, the Russian Federation.; Moscow State Budgetary Healthcare Institution 'Oncological Center No. 1 of Moscow City Hospital named after S.S. Yudin, Moscow Health Care Department', Moscow, the Russian Federation., Semenov DS; State Budget-Funded Health Care Institution of the City of Moscow 'Research and Practical Clinical Center for Diagnostics and Telemedicine Technologies of the Moscow Health Care Department', Moscow, the Russian Federation., Akhmad ES; State Budget-Funded Health Care Institution of the City of Moscow 'Research and Practical Clinical Center for Diagnostics and Telemedicine Technologies of the Moscow Health Care Department', Moscow, the Russian Federation., Sergunova KA, Kivasev SA, Petraikin AV; State Budget-Funded Health Care Institution of the City of Moscow 'Research and Practical Clinical Center for Diagnostics and Telemedicine Technologies of the Moscow Health Care Department', Moscow, the Russian Federation.
Jazyk:	angličtina
Zdroj:	Quantitative imaging in medicine and surgery [Quant Imaging Med Surg] 2024 Oct 01; Vol. 14 (10), pp. 7128-7137. Date of Electronic Publication: 2024 Sep 26.
DOI:	10.21037/qims-24-604
Abstrakt:	Background: Metal structures are a source of artifacts that significantly complicate the interpretation of magnetic resonance imaging (MRI). The use of prostate MRI as a preliminary test in men with a suspicion on prostate cancer leads to an increased use of the test. The aim of this study was to solve a clinically significant problem: to ensure the reduction of artifacts from metal hip implants during prostate MRI. Another goal was to evaluate the impact of artifact reduction methods on quantitative measurements. Methods: The prostate gland (PG) phantom model was a cylinder filled with an aqueous solution of polyvinylpyrrolidone at the concentrations of 40%, 30%, and 20% [central zone (CZ), peripheral zone (PZ), and "lesion", respectively]. Phantom MRI study was conducted on Philips Ingenia 1.5T and Philips Ingenia 3T scanners. Results: For 1.5 T, the reduction in the influence of artifacts inside region of interest (ROI) was observed, expressed in a decrease in the average apparent diffusion coefficient (ADC) (CZ, PZ, "lesion") for the manual artifact reduction (MAR) and ZOOM (title of software artifact reduction) techniques compared to the standard method. For 3T this effect was not detected. The same ADC results were obtained for Standard and MAR techniques, and increased ADC values for ZOOM. Despite the fact that the spread of ADC values on 3.0T scanners was minimal, there was a significant deviation of ADC values from the reference ones (up to 30.4%). Therefore, it is necessary to use a correction coefficient in the ADC calculation for the 3.0 T device. In the presented clinical case, high-quality tomograms were obtained without any artifacts, despite the presence of two hip replacement devices in the scanning area. Conclusions: The accurate prostate MRI in the presence of implants is essential for an accurate diagnosis. This approach allows to reduce artifacts from hip implants, to visualize PG and periprostatic tissue in the best way, and to detect malignant and benign changes. Competing Interests: Conflicts of Interest: All authors have completed the ICMJE uniform disclosure form (available at https://qims.amegroups.com/article/view/10.21037/qims-24-604/coif). All authors report that this paper was prepared by a group of authors as a part of the research and development effort titled “Research program to further the standardization, safety and quality of magnetic resonance imaging” (USIS No. 123031500007-6) in accordance with the Order No. 1196 dated December 21, 2022 “On approval of state assignments funded by means of allocations from the budget of the city of Moscow to the state budgetary (autonomous) institutions subordinate to the Moscow Health Care Department, for 2023 and the planned period of 2024 and 2025” issued by the Moscow Health Care Department. K.A.S. is afﬁliated with CAPSTROYCITY. The authors have no other conflicts of interest to declare. (2024 AME Publishing Company. All rights reserved.)
Databáze:	MEDLINE
Externí odkaz:	Zobrazit plný text záznamu