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Comparative evaluation of non-contrast MRI versus gadoxetic acid-enhanced abbreviated protocols in detecting colorectal liver metastases.
Insights Imaging
January 2025
Department of Radiology, Zhongshan Hospital, Fudan University, Shanghai, China.
Purpose: This study compares the diagnostic efficacy of non-contrast abbreviated MRI protocols with Gadoxetic acid-enhanced abbreviated MRI for detecting colorectal liver metastasis (CRLM), focusing on lesion characterization and surveillance.
Methods: Ninety-four patients, including 55 with pathologically verified CRLM, were enrolled, totaling 422 lesions (287 metastatic, 135 benign). Two independent readers assessed three MRI protocols per patient: Protocol 1 included non-contrast sequences (T2-weighted turbo spin-echo, T1-weighted Dixon, diffusion-weighted imaging (DWI), and ADC mapping).
Comparative analysis of intraoperative MRI and early postoperative MRI findings in glioma surgery patients.
J Neurosurg
December 2024
1Department of Neurological Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama.
Objective: The extent of resection (EOR) is an important prognostic factor for both low- and high-grade gliomas. Intraoperative MRI (iMRI) has been used to increase the EOR in glioma surgery. While a recent study reported differences between iMRI and early postoperative MRI (epMRI), their specific relationship to postoperative clinical symptoms remains unclear.
View Article and Find Full Text PDFMachine learning-based pipeline for automated intracerebral hemorrhage and drain detection, quantification, and classification in non-enhanced CT images (NeuroDrAIn).
PLoS One
December 2024
Medical Physics, Department of Diagnostic and Interventional Radiology, Medical Center, Faculty of Medicine, University of Freiburg, Freiburg, Germany.
Background And Purpose: External drainage represents a well-established treatment option for acute intracerebral hemorrhage. The current standard of practice includes post-operative computer tomography imaging, which is subjectively evaluated. The implementation of an objective, automated evaluation of postoperative studies may enhance diagnostic accuracy and facilitate the scaling of research projects.
View Article and Find Full Text PDFApplication value of contrast-enhanced ultrasound in the preoperative evaluation of renal cell carcinoma histological classification and RENAL score.
Quant Imaging Med Surg
December 2024
Ultrasound Medical Center, Lanzhou University Second Hospital, Lanzhou, China.
Article Synopsis
- Renal cell carcinoma (RCC) is primarily treated through surgical options like radical or partial nephrectomy, and treatment decisions are based on histological classifications and the RENAL score, with contrast-enhanced ultrasound (CEUS) being a safer alternative to traditional imaging methods.
- A retrospective study at Lanzhou University Second Hospital evaluated how CEUS can help in preoperatively assessing RCC histological classifications and RENAL scores by analyzing tumor features in 248 patients undergoing surgery.
- Findings revealed that certain imaging features (hyperenhancement, heterogeneous enhancement, etc.) were significant indicators of clear cell RCC (ccRCC), suggesting CEUS has diagnostic efficacy comparable to contrast-enhanced CT in differentiating between cc
The ability of virtual noncontrast images to remove intrinsic and external iodine from the thyroid via dual-layer spectral detector computed tomography.
Quant Imaging Med Surg
December 2024
Department of Radiology, Zhongshan City People's Hospital, Zhongshan, China.
Background: Virtual noncontrast (VNC) images generated by dual-layer spectral computed tomography (DLCT) remove iodine influence from enhanced images to simulate true noncontrast (TNC) images. Previous research has demonstrated the high comparability of abdominal VNC images with TNC images, suggesting their potential as substitutes. Given the thyroid's significant iodine content, this study evaluated the efficacy of VNC images for removing both intrinsic and extrinsic iodine through an analysis of computed tomography (CT) attenuation and iodine density in TNC and enhanced VNC thyroid images.
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