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The training of medical imaging emphasizes the combination of theory and practice. This study discusses the necessity and feasibility of sketch course combined with three-dimensional reconstruction in medical imaging teaching, as well as the advantages and basic requirements of sketch course.

Accurate prediction of renal mass subtypes, along with the WHO/ISUP grade and pathological T (pT) stage of clear cell renal cell carcinoma (ccRCC), is crucial for optimal decision making. Our study aimed to investigate the feasibility and reproducibility of motion-robust radial T2 mapping in differentiating lipid-poor angiomyolipoma (MFAML) from RCC and characterizing the WHO/ISUP grade and pT stage of ccRCC. Finally, 92 patients undergoing renal radial T2 mapping and ZOOMit DWI were recruited. The T2 values and apparent diffusion coefficient (ADC) were analyzed. Correlation coefficients were calculated between ADC and T2 values. Notably, ccRCC exhibited higher T2 and ADC values than MFAML (p < 0.05). T2 values were lower in the higher WHO/ISUP grade and pT stage of ccRCC (all p < 0.05). ADC showed no significant difference for pT stage (p = 0.056). T2 values revealed a higher area under the curve (AUC) in evaluating the WHO/ISUP grade compared to ADC (0.936 vs. 0.817, p = 0.027). T2 values moderately positively correlated with ADC (r = 0.675, p < 0.001). In conclusion, quantitative motion-robust radial T2 mapping is feasible for characterizing solid renal masses and could provide additional value for multiparametric imaging in predicting WHO/ISUP grade and pT stage of ccRCC. [ABSTRACT FROM AUTHOR]

To investigate the radiological characteristics of developmental anomalies of the right hepatic lobe and to systematically compare the efficiency of CT, MR and ultrasound (US) imaging in revealing characteristics of these disorders.

Background: Immunoglobulin A nephropathy (IgAN) is the most common primary glomerulonephritis worldwide. Oxford classification including mesangial hypercellularity (M), endothelial hypercellularity (E), segmental sclerosis (S), interstitial fibrosis/tubular atrophy (T), and crescent (C) were recommended to predict the prognosis of IgAN. Purpose: To explore whether multiparametric magnetic resonance imaging (MRI) can be applied to assess the renal function, Oxford classification, and risk of progression to end‐stage kidney disease within 5 years of IgAN. Study Type: Prospective. Population: A total of 46 patients with pathologically confirmed IgAN and 20 healthy volunteers. Field Strength/Sequence: A 3‐T, blood oxygenation level‐dependent (BOLD)‐MRI, intravoxel incoherent motion diffusion‐weighted imaging (IVIM‐DWI). Assessment: Two radiologists measured the cortex and medulla T2*, apparent diffusion coefficient (ADC), true diffusion (Dt), pseudo‐diffusion (Dp), perfusion fraction (fp). All participants were divided into three groups: group 1, healthy volunteers; group 2, patients with estimated glomerular filtration rate (eGFR) ≥60 mL/min/1.73 m2; group 3, patients with eGFR <60 mL/min/1.73 m2. Or two groups: group A, 5‐year risk scores ≤10% and group B, 5‐year risk scores >10%. Statistical Tests: Intraclass correlation coefficient, one‐way analysis of variance, least‐significant difference, Student's t‐test, Pearson product–moment correlation, Spearman's rank correlation, and receiver operating characteristics (ROC) with the area under the curve (AUC). A P value <0.05 was considered statistically significant. Results: Except for cortical Dp, all other MRI parameters showed significant differences between group 1 and group 2. None of the MRI parameters showed a significant correlation with M, E, or C scores. Cortical T2*, Dt, fp, and medullary Dt and fp showed low‐to‐moderate significant correlations with S scores. Except for cortical and medullary Dp, all other MRI parameters were significantly correlated with T scores. Cortical Dt showed the largest AUC for differentiating group A from group B (AUC = 0.927) and T0 from T1/T2 (AUC = 0.963). Data Conclusion: Imaging by IVIM‐DWI and BOLD‐MRI could facilitate noninvasive assessment of the renal function, Oxford classification, and prognostic risk of IgAN patients. Evidence Level: 2. Technical Efficacy: Stage 3. [ABSTRACT FROM AUTHOR]