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Coronary calcium scoring on virtual non-contrast and virtual non-iodine reconstructions compared to true non-contrast images using photon-counting computed tomography
ObjectivesTo compare coronary artery calcification (CAC) scores measured on virtual non-contrast (VNC) and virtual non-iodine (VNI) reconstructions...
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Dual-energy CT of the pancreas: comparison between virtual non-contrast images and true non-contrast images in the detection of pancreatic lesion
PurposeTo evaluate the image quality and diagnostic performance for pancreatic lesion between true non-contrast (TNC) and virtual non-contrast (VNC)...
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Contrast-enhanced to non-contrast-enhanced image translation to exploit a clinical data warehouse of T1-weighted brain MRI
BackgroundClinical data warehouses provide access to massive amounts of medical images, but these images are often heterogeneous. They can for...
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Contrast Induced Sialadenitis with Low Volume Non-ionic Contrast in a Patient with Cerebral Venous Sinus Thrombosis
Background: Contrast Induced Sialadenitis or Iodide Mumps refers to non-suppurative inflammation of salivary glands following intravenous iodinated...
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Non-contrast spectral CT vs chemical-shift MRI in discriminating lipid-poor adrenal lesions
ObjectivesTo compare the diagnostic performance of conventional non-contrast CT, dual-energy spectral CT, and chemical-shift MRI (CS-MRI) in...
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Large-scale pancreatic cancer detection via non-contrast CT and deep learning
Pancreatic ductal adenocarcinoma (PDAC), the most deadly solid malignancy, is typically detected late and at an inoperable stage. Early or incidental...
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Diagnostic accuracy of non-contrast MRI in frozen shoulder
IntroductionDespite being the most used exam today, few studies have evaluated the accuracy of findings on non-contrast magnetic resonance imaging...
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Can non-contrast magnetic resonance imaging replace contrast-enhanced computerized tomography in the local staging of pediatric renal tumors?
BackgroundRenal tumors account for approximately 6–7% of the total incidence of pediatric cancers. Wilms tumor (WT) is the most common renal...
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Prediction of high Ki-67 proliferation index of gastrointestinal stromal tumors based on CT at non-contrast-enhanced and different contrast-enhanced phases
ObjectivesTo evaluate and analyze radiomics models based on non-contrast-enhanced computed tomography (CT) and different phases of contrast-enhanced...
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Fully-automated multi-organ segmentation tool applicable to both non-contrast and post-contrast abdominal CT: deep learning algorithm developed using dual-energy CT images
A novel 3D nnU-Net-based of algorithm was developed for fully-automated multi-organ segmentation in abdominal CT, applicable to both non-contrast and...
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CSF rhinorrhea: non-contrast CT, contrast-enhanced CT cisternography or combined?
BackgroundRadiologic diagnosis of CSF leaks is challenging. We evaluated the diagnostic value of non-contrast CT and contrast-enhanced CT...
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Spontaneous intracranial hypotension: Exploring the viability of non-contrast FLAIR as a substitute for contrast-enhanced T1WI in assessing pachymeningeal thickening
PurposeTo avoid contrast administration in spontaneous intracranial hypotension (SIH), some studies suggest accepting diffuse pachymeningeal...
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A cycle generative adversarial network for generating synthetic contrast-enhanced computed tomographic images from non-contrast images in the internal jugular lymph node-bearing area
The objectives of this study were to create a mutual conversion system between contrast-enhanced computed tomography (CECT) and non-CECT images using...
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Contrast-enhanced ultrasound findings in testicular torsion and non-testicular torsion
PurposeTesticular torsion requires emergency surgery; thus, prompt and correct diagnosis is very important. Ultrasound with color Doppler is usually...
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CT radiomic features reproducibility of virtual non-contrast series derived from photon-counting CCTA datasets using a novel calcium-preserving reconstruction algorithm compared with standard non-contrast series: focusing on epicardial adipose tissue
PurposeWe aimed to evaluate the reproducibility of computed tomography (CT) radiomic features (RFs) about Epicardial Adipose Tissue (EAT). The...
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Advanced Non-Contrast MRA Techniques
Contrast-enhanced MRA remains the technique of choice for vascular imaging due to its high spatial resolution and SNR. However, when imaging patients...
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Multi-organ segmentation of abdominal structures from non-contrast and contrast enhanced CT images
Manually delineating upper abdominal organs at risk (OARs) is a time-consuming task. To develop a deep-learning-based tool for accurate and robust...
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Impact of contrast-enhanced versus non-contrast computed tomography on acute kidney injury in acute necrotizing pancreatitis: A randomized controlled trial
BackgroundThe data evaluating contrast-induced-acute kidney injury (AKI) in patients with acute pancreatitis is scarce. This study aimed to compare...
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Contrast-enhanced cardiac MRI is superior to non-contrast map** to predict left ventricular remodeling at 6 months after acute myocardial infarction
ObjectivesParametric map** constitutes a novel cardiac magnetic resonance (CMR) technique enabling quantitative assessment of pathologic...
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Value of a short non-contrast CMR protocol in MINOCA
ObjectivesTo evaluate the diagnostic performance of a short non-contrast CMR (ShtCMR) protocol relative to a matched standard comprehensive CMR...
