Journal of Magnetic Resonance Imaging最新文献

{"title":"RF Noise Artifacts From a High Frequency Spinal Cord Stimulation System: A Retrospective Imaging Cohort With Illustrative Cases.","authors":"Eric G Stinson, Abby J Hubbard, Jenna E Kleinow, Emily A Kramer, Joshua D Trzasko, Yunhong Shu, Heidi A Edmonson","doi":"10.1002/jmri.70394","DOIUrl":"10.1002/jmri.70394","url":null,"abstract":"<p><p>Unexpected RF noise artifact \"followed\" a patient with an implanted spinal cord stimulator to multiple MR systems. Subsequent testing and clinical scanning showed no artifact, implying that the artifact originated from the implanted device. MR exams (n = 173) performed over a two-year period in patients (n = 122) who had implanted spinal cord stimulators from the same manufacturer were reviewed for artifacts and device models. RF noise artifacts were observed in ~50% of exams in patients with a specific model of spinal cord stimulator, but only ~1%-8% of exams in other models from the same manufacturer. We hope that by describing this artifact, health care professionals can avoid service costs and scheduling delays.</p>","PeriodicalId":16140,"journal":{"name":"Journal of Magnetic Resonance Imaging","volume":" ","pages":"1456-1460"},"PeriodicalIF":4.3,"publicationDate":"2026-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148390942","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Editorial for \"High-Throughput Quantitative Chemical Shift-Encoded MRI of the Liver\".","authors":"Sevgi Gokce Kafali","doi":"10.1002/jmri.70450","DOIUrl":"10.1002/jmri.70450","url":null,"abstract":"","PeriodicalId":16140,"journal":{"name":"Journal of Magnetic Resonance Imaging","volume":" ","pages":"1411-1412"},"PeriodicalIF":4.3,"publicationDate":"2026-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148437042","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Autonomous Velocity Encoding (VENC) Selection Improves Precision of Quantitative Flow Measurement.","authors":"Pierre Daudé, Rajiv Ramasawmy, Christine Mancini, Dominique Franson, Sunggun Lee, Anastasia Tsakirellis, W Patricia Bandettini, Ahsan Javed, Kelvin Chow, Adrienne E Campbell-Washburn","doi":"10.1002/jmri.70443","DOIUrl":"10.1002/jmri.70443","url":null,"abstract":"<p><strong>Background: </strong>The optimal velocity encoding limit (VENC) in phase contrast MRI is subject-specific because it depends on peak flow rate and the presence of flow jets. Currently, VENC is set manually with limited prior knowledge of the peak velocity. Setting the correct VENC might improve measurement precision or shorten scan times.</p><p><strong>Purpose: </strong>To evaluate a workflow for autonomous selection of the optimal VENC without technologist interaction.</p><p><strong>Study type: </strong>Prospective and retrospective.</p><p><strong>Population: </strong>The retrospective cohort included 254 scans from 113 patients (47 ± 14 years, 58 female) and 18 healthy volunteers (34 ± 15 years, 10 female). The prospective cohort included 5 patients with abnormal flow (47 ± 19 years, 2 female) and 10 healthy volunteers (28 ± 7 years, 6 female).</p><p><strong>Field strength/sequence: </strong>1.5 T, 0.55 T; Cartesian gradient echo phase-contrast sequence.</p><p><strong>Assessment: </strong>A workflow has been designed to autonomously estimate and prescribe the optimal VENC. A 30s free-breathing calibration scan was followed by automatic estimation of the maximum velocity (Vmax) in < 6 s. The calculated optimal VENC was then automatically applied in the subsequent flow measurement without operator intervention. The target VENC:Vmax ratio was 1.1-1.25 according to consensus statements.</p><p><strong>Statistical tests: </strong>Shapiro-Wilk test, nonparametric two-sided bootstrap with 90% confidence intervals, Wilcoxon signed-rank test, paired t-test. Holm correction was applied to prespecified pairwise comparisons. p < 0.05 was considered significant.</p><p><strong>Results: </strong>Retrospective analysis demonstrated sub-optimal VENC setting in 96.5% of examinations with a VENC:Vmax ratio [2.03, 2.13] (two-sided bootstrap 90% confidence interval). In the prospective cohort, autonomous inline VENC selection yielded a mean VENC:Vmax ratio of 1.19 ± 0.10, significantly lower than subject-invariant VENC settings (VENC₁₅₀:Vmax = 1.49 ± 0.31, VENC₂₀₀:Vmax = 1.99 ± 0.41). Optimized VENC improved measurement precision, reducing velocity standard deviation by 41.9% ± 8.0%, and enabling shorter scan time to approximately 1/3 compared with default VENC 200 cm/s while maintaining equivalent velocity-to-noise performance.</p><p><strong>Data conclusion: </strong>Inline autonomous VENC selection improved flow-measurement precision, simplified the acquisition workflow, and reduced scan time at 0.55 T.</p><p><strong>Evidence level: </strong>2.</p><p><strong>Technical efficacy: </strong>1.</p>","PeriodicalId":16140,"journal":{"name":"Journal of Magnetic Resonance Imaging","volume":" ","pages":"1461-1471"},"PeriodicalIF":4.3,"publicationDate":"2026-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13667328/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148684934","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of 37°C Pre-Warmed Versus Room Temperature Gadoxetic Acid Disodium Contrast Medium on Patient Comfort and Image Quality in Liver MRI: A Prospective, Double-Blind, Self-Controlled Before-and-After Study.","authors":"Kanghua Feng, Haifeng Xu, Minghao Li, Luowei Su, Tiantian Lu, Lei Huang, Yaohong Deng, Lidong Liu, Yi Huang","doi":"10.1002/jmri.70447","DOIUrl":"10.1002/jmri.70447","url":null,"abstract":"<p><strong>Background: </strong>Compromised patient comfort and suboptimal arterial phase (AP) image quality remain unresolved challenges in Gd-EOB-DTPA-enhanced liver MRI.</p><p><strong>Objective: </strong>To evaluate the effects of pre-warmed (37°C) Gd-EOB-DTPA contrast medium on patient comfort and image quality in liver MRI.</p><p><strong>Study type: </strong>Prospective, single-center, double-blind, self-controlled before-and-after study.</p><p><strong>Subjects: </strong>One hundred and thirty-eight participants (113 males; mean age 56.33 ± 11.24 years) who underwent Gd-EOB-DTPA-enhanced liver MRI.</p><p><strong>Field strength/sequence: </strong>3.0-T; AP and Hepatobiliary phase (HBP) were both T1WI 3D spoiled gradient-echo dynamic sequences.</p><p><strong>Assessment: </strong>The primary outcome of this self-controlled before-and-after study was to compare image quality of room temperature (25°C) and pre-warmed (37°C) contrast medium. A 4-point scale and an 11-Numeric Rating Scale were used to evaluate overall participant comfort, while a 4-point Likert scale was applied for image quality assessment. In vitro experiments were conducted to characterize the physicochemical properties of the contrast medium, and renal function parameters were measured to assess its nephrotoxicity.</p><p><strong>Statistical tests: </strong>Paired t-test, Wilcoxon signed-rank test, and Stuart-Maxwell test; two-tailed p < 0.05 was significant.</p><p><strong>Results: </strong>Significant differences were observed between 37°C and 25°C for participant comfort (comfortable or very comfortable rate: 97.1% vs. 82.6%), adverse sensations including dyspnea (incidence: 1.4% vs. 13.8%), and AP image quality (excellent rate: 50.0% vs. 0.7%). For the HBP, contrast-to-noise ratio (CNR) and liver-to-spleen contrast ratio (LSC) changes were not significant (p = 0.067, p = 0.079, respectively). In vitro, Gd-EOB-DTPA maintained stable chemical properties and its viscosity, shear stress, and torque decreased. Renal function showed no differences (urea p = 0.933, creatinine p = 0.249, endogenous clearance p = 0.206).</p><p><strong>Conclusion: </strong>Pre-warming Gd-EOB-DTPA to 37°C improves patient comfort, reduces adverse sensations, optimizes AP image quality, and maintains HBP image quality.</p><p><strong>Evidence level: </strong>2.</p><p><strong>Technical efficacy: </strong>Stage 3.</p>","PeriodicalId":16140,"journal":{"name":"Journal of Magnetic Resonance Imaging","volume":" ","pages":"1413-1421"},"PeriodicalIF":4.3,"publicationDate":"2026-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148437065","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Concordance Between MR Safety Guidance Documents on Conditions for a Safe MR Environment.","authors":"Ives R Levesque, Véronique Fortier, Jorge Campos Pazmiño, Evan McNabb","doi":"10.1002/jmri.70444","DOIUrl":"10.1002/jmri.70444","url":null,"abstract":"<p><strong>Background: </strong>Environmental conditions established at facility design, construction, updates, and/or procurement of specialized equipment are the foundation of safe MR practice. Establishing an institutional MR safety program must take into consideration the conditions of the MR environment, and staff training should be tailored to its features.</p><p><strong>Purpose/hypothesis: </strong>To identify the concordance on conditions for a safe MR environment among a variety of widely known national guidance documents.</p><p><strong>Study type: </strong>Analysis of guidance documents.</p><p><strong>Population/subjects/phantom/specimen/animal model: </strong>Not applicable.</p><p><strong>Field strength/sequence: </strong>Not specific to field strength.</p><p><strong>Assessment: </strong>Information was extracted from national MR safety guidance documents about the expected conditions in a safe MR environment, and categorized among (1) facility design, (2) MR equipment selection, and (3) peripheral equipment. Commonalities and differences were identified.</p><p><strong>Statistical tests: </strong>Descriptive statistics.</p><p><strong>Results: </strong>Six publicly available national guidance documents for MR safety were obtained, from countries with relatively high density of MR systems (between 9 and 38 MR systems per million inhabitants): Australia, New Zealand, Sweden, Switzerland, UK, and USA. Full or partial concordance was observed among many measures related to facility design (21/25 conditions), MR equipment features (7/9 conditions), and peripheral equipment (10/13 conditions).</p><p><strong>Data conclusion: </strong>This work identified the common and divergent recommendations on facilities and equipment from a variety of guidance documents from national sources. Highlighting common (and uncommon) features recommended by guidance can help users identify weaknesses in their MR environment. This could inform jurisdictions/countries without official guidance and serve in the development of future guidance documents or MR safety training materials.</p><p><strong>Evidence level: </strong>5.</p><p><strong>Technical efficacy: </strong>1.</p>","PeriodicalId":16140,"journal":{"name":"Journal of Magnetic Resonance Imaging","volume":" ","pages":"1442-1453"},"PeriodicalIF":4.3,"publicationDate":"2026-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13667343/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148412133","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Pulmonary MRI in Interstitial Lung Disease: A Systematic Review and Meta-Analysis.","authors":"Thiago de Gaultier Paulo, João Martins da Fonseca, Liana F Corrêa, Lucas Gabriel Rodrigues Pinheiro, Rubens G F Andrade, Gabriele C Forte, Borna Mehrad, Carina A Ruano, Stephan Altmayer, Liisa Bergmann, Juergen Biederer, Jeanne B Ackman, Bruno Hochhegger","doi":"10.1002/jmri.70397","DOIUrl":"10.1002/jmri.70397","url":null,"abstract":"<p><strong>Background: </strong>Magnetic resonance imaging (MRI) has emerged as a radiation-free alternative for evaluating interstitial lung disease (ILD), but its diagnostic performance relative to computed tomography (CT) remains variably reported.</p><p><strong>Purpose: </strong>To evaluate the diagnostic performance of pulmonary MRI for ILD detection and identification of key imaging hallmarks, using CT as the primary reference standard.</p><p><strong>Study type: </strong>Systematic review and meta-analysis of observational studies.</p><p><strong>Population: </strong>Twenty-five studies including 959 participants were included in the qualitative synthesis; nine studies (n = 473) were eligible for quantitative meta-analysis.</p><p><strong>Field strength/sequence: </strong>MRI field strengths ranged from 0.55 to 3.0 T and included ultrashort echo-time (UTE), zero echo-time (ZTE), T2-weighted fast spin-echo, and gradient-echo-based sequences with slice thickness ranging from 1 to 20 mm.</p><p><strong>Assessment: </strong>MRI performance was evaluated against CT for global ILD detection and imaging hallmarks including ground-glass opacities, nodules, traction bronchiectasis, reticulations, and honeycombing.</p><p><strong>Statistical tests: </strong>Pooled sensitivity and specificity were estimated jointly using a bivariate hierarchical model of Reitsma et al.; heterogeneity was assessed with I² statistics (p < 0.10). Leave-one-out sensitivity analyses were performed.</p><p><strong>Results: </strong>Pooled sensitivity was 0.91 (95% CI: 0.84-0.95; I²: 42.1%) and pooled specificity was 0.86 (95% CI: 0.73-0.93; I²: 62.6%) and summary SROC AUC of 0.939. In a predefined subanalysis restricted to UTE/ZTE thin-slice protocols (four studies), sensitivity was 0.93 (95% CI: 0.87-0.97; I²: 0.0%) and specificity was 0.92 (95% CI: 0.78-0.98; I²: 51.3%).</p><p><strong>Data conclusion: </strong>Pulmonary MRI demonstrates high diagnostic performance for ILD detection, with results suggesting protocol-dependent performance and improved consistency under optimized UTE/ZTE thin-slice acquisitions.</p><p><strong>Evidence level: </strong>3.</p><p><strong>Technical efficacy: </strong>Stage 2.</p>","PeriodicalId":16140,"journal":{"name":"Journal of Magnetic Resonance Imaging","volume":" ","pages":"1424-1441"},"PeriodicalIF":4.3,"publicationDate":"2026-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148471167","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Impact of Different Degrees of Liver Iron Concentration on MRI Feature Assessment and LI-RADS v2018 Category Assignment for Hepatocellular Carcinoma.","authors":"Sue Cao, Jianwen Li, Xiaorui Su, Xin Gao, Quanxi Li, Jie Zhang, Ruomi Guo","doi":"10.1002/jmri.70415","DOIUrl":"10.1002/jmri.70415","url":null,"abstract":"<p><strong>Background: </strong>Hepatocellular carcinoma (HCC) in high-risk patients can be diagnosed by imaging alone, avoiding biopsy. However, whether liver iron concentration (LIC) affects MRI diagnostic performance remains uncertain.</p><p><strong>Purpose: </strong>To investigate the impact of different degrees of LIC on MRI feature assessment and LI-RADS v2018 category assignment in high-risk HCC patients.</p><p><strong>Study type: </strong>Retrospective.</p><p><strong>Population: </strong>One hundred sixty-three consecutive HCC patients (mean age, 55.73 ± 9.65 years; 152 male) with 167 lesions.</p><p><strong>Field strength/sequence: </strong>3.0 T. Protocol followed LI-RADS with extra sequences (R²*, PDFF). Contrast agents included gadoxetate disodium (49 lesions), gadobenate dimeglumine (114 lesions), and Magnevist (4 lesions).</p><p><strong>Assessment: </strong>According to hepatic R²* values, patients were divided into three groups: non-iron overload (80 lesions), mild (54 lesions), and moderate-to-extreme (33 lesions). Three observers independently evaluated LI-RADS v2018 major, ancillary, and LR-M features, categories, and T1 signal.</p><p><strong>Statistical tests: </strong>ANCOVA/Kruskal-Wallis H test, chi-square/Fisher's exact tests, and logistic regression. A two-sided p < 0.05 was considered statistically significant.</p><p><strong>Results: </strong>The incidences of T1 iso-/hyperintensity, nonperipheral \"washout\", enhancing \"capsule\" and HBP hypointensity differed significantly among groups. Moderate-to-severe hepatic iron overload independently influenced T1 iso-/hyperintensity (OR = 14.38 [95% CI: 4.08-50.70]) and nonperipheral \"washout\" (OR = 0.14 [95% CI: 0.05-0.41]). Hepatic iron overload was independently associated with enhancing \"capsule\" (mild: OR = 0.34 [95% CI: 0.16-0.72]); moderate-to-severe: (OR = 0.15 [95% CI: 0.06-0.37]). HBP hypointensity was influenced by Child-Pugh class B (OR = 14.51 [95% CI: 1.13-185.88]), total bilirubin (OR = 0.09 [95% CI: 0.83-0.97]), albumin (OR = 1.49 [95% CI: 1.18-1.89]), PLT (OR = 0.99 [95% CI: 0.98-1.00]) and moderate-to-severe hepatic iron overload (OR = 0.01 [95% CI: 0.00-0.25]). Proportions of LR-4 and LR-5 differed significantly among groups, and only moderate-to-severe hepatic iron overload was associated with LR-5 assignment (OR = 0.08 [95% CI: 0.02-0.28]).</p><p><strong>Conclusion: </strong>Hepatic iron overload, especially moderate-to-extreme, may affect the visual assessment of selected MRI features and alter LI-RADS v2018 category assignment.</p><p><strong>Level of evidence: 3: </strong></p><p><strong>Technical efficacy stage: </strong>2.</p>","PeriodicalId":16140,"journal":{"name":"Journal of Magnetic Resonance Imaging","volume":" ","pages":"1363-1381"},"PeriodicalIF":4.3,"publicationDate":"2026-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148301995","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Editorial for \"Application of MR Cytometry in Predicting Pathologic Complete Response to Neoadjuvant Chemotherapy in Breast Cancer: A Comparative Study\".","authors":"Min-Ying Lydia Su","doi":"10.1002/jmri.70504","DOIUrl":"10.1002/jmri.70504","url":null,"abstract":"","PeriodicalId":16140,"journal":{"name":"Journal of Magnetic Resonance Imaging","volume":" ","pages":"1361-1362"},"PeriodicalIF":4.3,"publicationDate":"2026-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148725334","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of Visualized Respiratory Training on Patient Cooperation and Image Quality in Gadoxetic Acid Disodium-Enhanced Liver MRI: A Randomized Controlled Trial.","authors":"Li Mei, Xin Luo, Bingyan Wang, Junfeng Wang, Chao Huang, Xuemei Hu, Qin Li, Wenyan Zhang","doi":"10.1002/jmri.70423","DOIUrl":"10.1002/jmri.70423","url":null,"abstract":"<p><strong>Background: </strong>Respiratory motion artifacts impair diagnostic accuracy in gadoxetic acid disodium (Gd-EOB-DTPA)-enhanced liver MRI. Conventional verbal pre-scan breathing training often yields inconsistent patient cooperation and image quality, creating an urgent clinical need for optimized training methods.</p><p><strong>Purpose: </strong>To evaluate the impact of a visualized respiratory training method integrated into clinical workflow on patient cooperation, image quality, and examination efficiency for Gd-EOB-DTPA-enhanced liver MRI.</p><p><strong>Study type: </strong>Prospective, single-center, randomized controlled trial.</p><p><strong>Population: </strong>One hundred and eighty-four patients (135 males; mean age 53.5 ± 13.3 years) scheduled for first-time Gd-EOB-DTPA-enhanced liver MRI.</p><p><strong>Field strength/sequence: </strong>3 T; Dynamic contrast-enhanced imaging was performed with a 3D fast spoiled gradient-echo sequence, covering pre-contrast, arterial, portal venous, transitional, and hepatobiliary phases.</p><p><strong>Assessment: </strong>Primary outcome was patient cooperation rate assessed by blinded MRI technologists. Secondary outcomes included motion artifact scores (rated by three blinded radiologists), Signal-to-Noise Ratio (SNR), Contrast-to-Noise Ratio (CNR), transient severe motion (TSM) incidence, and examination duration.</p><p><strong>Statistical tests: </strong>Student's t-test, Mann-Whitney U test, Chi-square test, and Gamma correlation; two-tailed p < 0.05 indicated significance.</p><p><strong>Results: </strong>The experimental group (85 patients) had a significantly higher full cooperation rate (56.5% [48/85] vs. 27.3% [27/99], OR = 3.46, 95% CI: 1.87, 6.40, γ = 0.406), significantly lower motion artifact scores in arterial/portal venous/transitional phases, and significantly higher arterial and transitional phase SNR/CNR. The experimental group also showed significantly shorter preparation time (14.40 ± 2.36 vs. 16.16 ± 2.20 min; mean difference: -1.76 min; 95% CI: -2.42, -1.101). Scanning time did not differ significantly between groups (24.60 ± 1.60 vs. 24.89 ± 2.21 min; p = 0.329). TSM incidence did not differ significantly between groups (1.18% vs. 5.05%, p = 0.219).</p><p><strong>Data conclusion: </strong>Visualized respiratory training significantly improves patient cooperation, image quality, and workflow efficiency in Gd-EOB-DTPA-enhanced liver MRI, with no additional resource requirements supporting its routine clinical adoption.</p><p><strong>Evidence level: </strong>2.</p><p><strong>Technical efficacy: </strong>Stage 1.</p>","PeriodicalId":16140,"journal":{"name":"Journal of Magnetic Resonance Imaging","volume":" ","pages":"1384-1395"},"PeriodicalIF":4.3,"publicationDate":"2026-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13667308/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148301977","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Editorial for \"Concordance Between MR Safety Guidance Documents on Conditions for a Safe MR Environment\".","authors":"Love Engström Nordin, Karin Åberg, Peter Lundberg","doi":"10.1002/jmri.70508","DOIUrl":"10.1002/jmri.70508","url":null,"abstract":"","PeriodicalId":16140,"journal":{"name":"Journal of Magnetic Resonance Imaging","volume":" ","pages":"1454-1455"},"PeriodicalIF":4.3,"publicationDate":"2026-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13667310/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148725175","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}