Image noise (IN), lesion to liver signal to noise (SNR) and contrast to noise (CNR) ratios were quantitatively analysed; image quality was rated on a 5-point scale (1, excellent; 2, good; 3, fair; 4, poor; 5, non-diagnostic) by two independent reviewers.#In 21 patients with hypo...
Reference standard assessment identified 92 liver lesions (50 metastases, 24 cysts, 13 abscesses, 3 regions of inflammation, 2 hemangiomas) with a mean size of 1.1 cm ± 0.5. The mean interval between the CT and liver lesion biopsy was 24 days. A diagnosis of benign versus malignant ...
Computed tomography of the spleen: how to interpret the hypodense lesion BackgroundAs the largest single lymphatic organ in the human body, the spleen is responsible for central immunological and haematological tasks. Therefore,... CA Karlo,P Stolzmann,RK Do,... - 《Insights Into Imaging》 被...
www.ilib.cn 5. The Pathologenesis and CT Diagnosis of the Lesions with Hypodense in Basal Ganglia 基底节区对称性低密度病变的发病机理与CT诊断 www.ilib.cn 6. CT Diagnosis of Symmetric Hypodense Lesion in the Basal Ganglia 脑基底节区对称性低密度病变的CT诊断 www.ilib.cn©...
\\{CT\\}image noiseradiation doseliver lesion detectionRationale and Objectives To determine the impact of incremental increases in computed tomography (CT) image noise on detection of low-contrast hypodense liver lesions. Material and Methods We studied 50 CT examinations acquired at image noise ...
At imaging, enlarged peripancreatic and hilar lymph nodes, as well as hypodense liver lesions, were detected, suggestive of malignant disease. At endoscopy, the mass adjacent to the duodenum was seen as a protruding lesion through the duodenal wall. A biopsy of this lesion, taken through the ...
Dual-energy CTLiver metastasisVirtual monoenergetic imagingQuantitative imagingRationale and Objectives To evaluate the impact of noise-optimized virtual monoenergetic imaging (VMI) on lesion demarcation and measuring accuracy of hypoattenuating liver metastases in patients with fatty liver disease compared to ...
An early onset of metastasis, predominantly to the liver, is observed. Conclusions In general, the majority of hypodense splenic lesions on contrast-enhanced, portal-venous CT represent benign lesions that require no further work-up. However, certain imaging appearances—such as ill-defined lesion ...
Liver tumorsObject-based image analysisLesion segmentationHypodense liver lesions are commonly detected in CT, so their segmentation and characterization are essential for diagnosis and treatment. Methods for automatic detection and segmentation of liver lesions were developed to support this task.The ...
LiverComputer tomographyPseudolesionHistologyPurpose To identify a histological substrate explaining the hypodense pseudolesion in the liver at the right side of the falciform ligament and the correlation with CT radiodensity.doi:10.1007/s00261-015-0442-8...