Results 1 - 10 of 5795
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[en] Highlights: • Glioblastomas and metastases are the most frequent brain tumors in adult population. • Even with nowadays advanced MR techniques performed, diagnostic uncertainty remains. • Fractal and texture MRI analyses were evaluated in differentiating these tumors. • Texture features have proven to be more powerful in differentiation. • T2W images yielded the maximum different parameters, followed by CET1 and SWI. - Abstract: PurposeGlioblastomas (GBM) and metastases are the most frequent malignant brain tumors in the adult population. Their presentation on conventional MRI is quite similar, but treatment strategy and prognosis are substantially different. Even with advanced MR techniques, in some cases diagnostic uncertainty remains. The main objective of this study was to determine whether fractal, texture, or both MR image analyses could aid in differentiating glioblastoma from solitary brain metastasis.
[en] Highlights: • Nearly half of hepatocellular carcinomas in NASH are smaller than 20 mm. • One third of hepatocellular carcinomas in NASH do not display wash-out. • Classical diagnostic imaging criteria should be applied with caution to HCC in NASH. - Abstract: PurposeTo describe the magnetic resonance imaging (MRI) features of hepatocellular carcinoma (HCC) in patients with non-alcoholic steatohepatitis (NASH).
[en] Highlights: • ADC shows negative correlation with SUV and decreases in metastatic tumours. • TLG and MTV/ADCmin ratio have high predictive value for metastasis and advanced TNM stage tumours. • Patients with larger MTV/ADCmin have a shorter PFS and OS. - Abstract: PurposeTo correlate the clinical stage and prognosis of oesophageal squamous cell carcinoma (SCC) using the imaging biomarkers from integrated positron emission tomography (PET)/magnetic resonance imaging (MRI).
[en] Highlights: • Interreader agreement for CEUS LI-RADS categories and major features is substantial. • CEUS LI-RADS is a promising standardized categorization system for high-risk patients. • The combination of two or three LR-M features may improve the true-negative classification of HCC diagnosis. - Abstract: PurposeThis study explored the interreader agreement and diagnostic performance of contrast-enhanced ultrasound liver imaging reporting and data system (CEUS LI-RADS).
[en] Highlights: • Tumor stroma ratio and dominant stroma type were independent prognostic factors of solid tumors. • D and f values showed significant differences according to TSR of breast cancer. • The D value was lower in collagen dominant type than in fibroblast dominant or lymphocyte dominant type of breast cancer. - Abstract: PurposeTo determine whether imaging parameters derived from intravoxel incoherent motion (IVIM) diffusion weighted imaging (DWI) vary according to tumor-stroma ratio(TSR) or dominant stroma type of breast cancer.
[en] Highlights: • PET parameters and CT-radiomics both have capacity on differentiating lung lesions. • Performance of PET parameters and CT-radiomics do not show significant difference. • The features of SurfaceVolumeRatio and SUVpeak were found as potential biomarker. • SurfaceVolumeRatio differentiates granulomatous lesion from inflammatory pseudotumor. - Abstract: PurposeThe study is to explore potential features and develop classification models for distinguishing benign and malignant lung lesions based on CT-radiomics features and PET metabolic parameters extracted from PET/CT images.
[en] Highlights: • Radiomics models of MK and MD were imaging biomarkers for predicting IDH and MGMTmet genotypes. • Combined model improved to predict IDH, which showed the incremental value of radiomics features. • Combined model did not improve predictive performance of MGMTmet. - Abstract: Purpose: To test whether the whole-tumor radiomics analysis of DKI and DTI images could predict IDH and MGMTmet genotypes of astrocytomas.
[en] Highlights: • APT values were higher for neonates with mild HIE than healthy control. • APT values were exhibited a linear, positive correlation with gestational age in healthy control. • APT imaging is a feasible technique with diagnostic capability for neonatal HIE. - Abstract: Purpose: This study aimed to evaluate the amide proton transfer (APT) values in neonates with mild hypoxic-ischemic encephalopathy (HIE) using APT imaging.
[en] Highlights: • Split bolus protocols may be suitable for pancreatic- and cholangiocarcinoma. • The split bolus protocol provides sufficient levels of diagnostic accuracy. • Split bolus protocol is equal to the multiphase protocol regarding image quality. • The split bolus protocol lowers the radiation exposure significantly. • Split bolus protocols in computed tomography are easy and safe to perform. - Abstract: Purpose: To investigate the image quality, diagnostic accuracy, and dose reduction potential of a split-bolus protocol(SBP) compared with a multiphasic protocol(MPP) in the detection of recurrent or progressive pancreatic ductal adenocarcinoma(PDAC) or cholangiocarcinoma(CC) using contrast- enhanced computed tomography(CECT).
[en] Radiologists often encounter imaging requisitions that lack important information needed for accurate diagnostic studies. Reason for exam Imaging Reporting and Data System (RI-RADS) is proposed as a grading system for evaluation of the quality of clinically pertinent information provided in imaging requisitions. Three categories of information are suggested as key indicators of quality: impression, clinical findings, and the diagnostic question. This scheme is intended to improve the quality of imaging requisitions and overall patient care.